Tax File Number (TFN) in Australia: What It Is and How to Apply

If you’re planning to work in Australia, there’s one number you absolutely need to get sorted: your Tax File Number, or TFN. Whether you’re an international student looking for part-time work, a working holiday maker ready to start your adventure, or a permanent resident settling into your new life, this nine-digit number is going to be your constant companion throughout your time in Australia.

Here’s the thing about TFNs that catches many newcomers off guard: without one, you’ll be taxed at the highest rate possible – 47% of everything you earn. That’s nearly half your wages disappearing before you even see them. But getting a TFN isn’t complicated. It’s free, the process is straightforward, and once you have it, you’re set for life. Yes, you read that right – your TFN never expires, never changes, and stays with you forever, even if you leave Australia and come back years later.

In 2026, applying for a TFN has become even easier thanks to Australia’s new Digital ID system. Australian citizens aged 15 and over can now get their TFN almost instantly using a smartphone and their passport. For international students and visa holders, the process takes a bit longer but remains simple and entirely online.

This guide walks you through everything you need to know about Tax File Numbers in Australia. We’ll explain what a TFN actually is, why you need one, who can apply, and exactly how to get yours. We’ll also cover the important 2026 updates, security tips to protect your TFN from fraud, and what to do if you’ve lost your number. Whether you’re applying from your first day in Australia or trying to find a TFN you applied for years ago, this guide has you covered.

---

TL;DR – Quick Facts About TFN

What it is: A unique 9-digit number issued by the Australian Taxation Office (ATO) for tax purposes

Who needs it: Anyone working in Australia, opening a bank account, or claiming government benefits

Cost: Completely free – never pay anyone to apply for a TFN

Processing time: Up to 28 days (instant to a few days with Digital ID for citizens)

How to apply: Online through the ATO website (must be in Australia)

Without a TFN: You’ll be taxed at 47% on all income

Lifetime number: Never expires, never needs renewal, same number forever

2026 update: Digital ID makes applications faster for Australian citizens 15+

---

What is a Tax File Number (TFN)?

A Tax File Number is a unique identification number that the Australian Taxation Office issues to individuals and organizations. Think of it as your personal reference number in Australia’s tax system. Your TFN consists of nine digits, usually written in the format 123 456 789.

The TFN system was introduced in 1988 to help the ATO track income and tax payments more efficiently. Unlike some countries where tax numbers can be used for many purposes, Australia has kept TFN usage strictly limited by law. You can only use your TFN for tax-related matters, superannuation (retirement savings), and certain government services. This restriction helps protect you from identity theft and privacy violations.

Here’s what makes your TFN special: it’s yours for life. Once issued, your TFN never changes, never expires, and never needs to be renewed. You’ll keep the same number whether you change jobs, move houses, get married and change your name, or even if you leave Australia and return years later. If you’re on a student visa now and later become a permanent resident or citizen, your TFN stays exactly the same.

The number itself includes a check digit (the last digit) that uses a mathematical formula to help detect errors when the number is entered into systems. This means if you accidentally type your TFN incorrectly, many systems will catch the mistake right away.

It’s important to understand that a TFN is not mandatory. Legally, you don’t have to have one. However, choosing not to get a TFN comes with significant financial consequences that make it impractical for most people to go without one.

---

Why You Need a TFN in Australia

While technically optional, not having a TFN will cost you money and create barriers in your daily life. Here’s exactly how a TFN affects different areas of your life in Australia.

Employment and Wages

This is the big one. When you work without providing a TFN to your employer, they are required by law to withhold 47% of your wages in tax. This is called the top marginal tax rate, and it’s applied to protect the tax system.

Let’s put this in real numbers. If you earn $1,000 in a fortnight, here’s what happens:

• With a TFN: You might pay $150-200 in tax (depending on your total income), taking home $800-850
• Without a TFN: Your employer withholds $470 in tax, leaving you with only $530

That’s a difference of around $300 every fortnight, or roughly $650 per month. For a student working the maximum 48 hours per fortnight during semester, that’s thousands of dollars lost unnecessarily each year.

Some people think they can work without a TFN and then claim the tax back later when they lodge their tax return. While this is theoretically possible, it creates unnecessary paperwork, delays your refund, and can trigger additional scrutiny from the ATO. It’s far simpler to just get your TFN before you start working.

The good news is that when you first start a job, you have a 28-day grace period to provide your TFN to your employer. You can begin working immediately after starting your TFN application, as long as you give your employer the application reference number and complete a TFN declaration form.

Banking and Investment Income

Banks and financial institutions in Australia are also required to withhold tax on the interest you earn if you don’t provide a TFN. Without a TFN, your bank will deduct 47% tax from any interest your account earns.

Now, you might think “I only have a few hundred dollars in my account, the interest is tiny anyway.” That’s true for small amounts, but here’s the catch: if you don’t quote your TFN, the bank must withhold the tax even on that small amount. More importantly, if you’re planning to save money during your time in Australia or if you receive money from family back home, this adds up over time.

There is a small exemption: bank accounts earn up to $120 in interest per year without TFN withholding. But once you go over this threshold, the 47% tax kicks in on all interest earned.

Superannuation (Retirement Savings)

If you work in Australia, your employer is required to contribute to your superannuation fund – this is essentially a retirement savings account. In 2026, employers contribute 11.5% of your wages into super on top of your salary.

Without a TFN, your super fund will tax your employer’s contributions at 47% instead of 15%. This means you lose a significant portion of money that’s meant to be part of your retirement savings. Even though you can claim back your super when you leave Australia permanently (through the Departing Australia Superannuation Payment scheme), you’ll only get back what’s left after the excessive taxation.

Additionally, without a TFN quoted to your super fund, you cannot:

• Make personal after-tax contributions to your super
• Receive government co-contributions (up to $500 per year for eligible low-income earners)
• Access the Low Income Superannuation Tax Offset (LISTO)

For international students and temporary residents who plan to claim back their super when leaving Australia, providing your TFN ensures you maximize the amount you can recover later.

Government Services and Benefits

Your TFN is required for accessing various government services and payments. If you’re an Australian permanent resident or citizen, you cannot apply for:

• JobSeeker (unemployment benefits)
• Youth Allowance
• Austudy
• Age Pension
• Disability Support Pension
• Family Tax Benefit

While most international students won’t be eligible for these payments due to visa restrictions, understanding this helps you see how central the TFN is to Australia’s tax and welfare system.

Getting an Australian Business Number (ABN)

If you’re planning to work as a contractor, freelancer, or sole trader, you’ll need an Australian Business Number (ABN). You must have a TFN before you can apply for an ABN. Learn more about the difference between TFN and ABN and when you need each one.

---

Who is Eligible to Apply for a TFN?

The good news is that most people in Australia can apply for a TFN, but there are some important eligibility rules and you must be physically in Australia when you apply.

Australian Citizens

Any Australian citizen can apply for a TFN at any age. Parents or guardians can apply on behalf of children and newborns. However, to use the new fast-track Digital ID application method (more on this later), you must be at least 15 years old.

Permanent Residents

If you hold Australian permanent residency, you’re eligible to apply for a TFN regardless of age. The application process is the same as for Australian citizens, though you may not be able to use the Digital ID fast-track method depending on your identity documents.

International Students

International students on a student visa (subclass 500) can apply for a TFN as long as your visa includes work rights. Most student visas automatically include permission to work up to 48 hours per fortnight during semester and unlimited hours during breaks. You can read more about work rights for international students in Australia.

Important: You must be physically in Australia when you apply for a TFN. You cannot apply before arriving, even if you already have your visa grant. Many students try to get this sorted before leaving their home country, but the system simply won’t allow it.

Also, your course must have officially commenced before you can start work, even if you have your TFN. So while you can apply for your TFN from day one in Australia, you need to wait until your classes actually begin before taking on employment.

Working Holiday Visa Holders

If you’re in Australia on a Working Holiday visa (subclass 417) or Work and Holiday visa (subclass 462), you can and should apply for a TFN as soon as you arrive. Unlike student visa holders, you can generally start working immediately upon arrival, so getting your TFN early is crucial.

Working holiday makers have different tax rates than other workers in Australia, but you still need a TFN to ensure you’re taxed at the correct working holiday maker rates rather than the maximum 47% rate. For more details, check our guide on how to get a TFN in Australia for working holiday visa holders.

Temporary Visa Holders with Work Rights

Other temporary visa holders who have work rights included in their visa conditions can apply for a TFN. This includes:

• Temporary Skill Shortage (TSS) visa holders (subclass 482)
• Skilled Regional (Provisional) visa holders (subclass 489)
• Partner visa applicants with work rights
• Bridging visa holders with work permission

Check your visa conditions on VEVO (Visa Entitlement Verification Online) to confirm you have work rights before applying for a TFN.

Overseas Residents with Australian Income

Even if you live outside Australia permanently, you can apply for a TFN if you earn income from Australian sources. This might include:

• Rental income from Australian property
• Investment income from Australian shares
• Royalties or business income from Australia

The application process for overseas residents is different from the standard process and typically requires additional documentation.

Who CANNOT Apply

You cannot apply for a TFN if:

• You’re in Australia on a tourist visa (no work rights)
• You’re outside Australia (must be physically in the country)
• You’re on a visa with no work permission
• You’re under 15 and want to use the Digital ID application method

---

Documents You'll Need to Apply for a TFN

The documents required for your TFN application depend on your residency status and which application method you choose. Here’s what you need to have ready before you start.

For Australian Citizens

Digital ID Application (fastest method):

• Valid Australian passport
• One additional identity document from: Australian driver’s license, Medicare card, Australian birth certificate, or Australian citizenship certificate
• A smartphone capable of taking a selfie
• Email address (must match your myGov account email if you have one)

Traditional Application:

• Australian birth certificate (full version, not commemorative)
• Australian passport (current or expired within last 2 years)
• Australian citizenship certificate
• Australian driver’s license
• ImmiCard
• Certificate of Identity

You’ll need documents totaling 100 points of identification. Primary documents like passports and birth certificates carry more points than secondary documents.

For International Students and Visa Holders

Required documents:

• Foreign passport showing your photo, signature, and personal details
• Australian visa details (visa type, visa number, visa expiry date)
• Evidence of your visa (visa grant notice or VEVO check)

Additional documents that may be requested:

• Your Confirmation of Enrolment (CoE) for students
• Proof of Australian address where your TFN will be mailed

Important notes:

• You don’t need to provide translated documents for the online application unless specifically requested
• Your passport must be current and valid
• You can use a visa grant notice you received by email as proof of visa details

Proof of Australian Address

For all applicants, you’ll need an Australian postal address where the ATO can mail your TFN notification letter. This can be:

• Your residential address
• A friend’s or family member’s address (with their permission)
• Your registered tax agent’s address (if you’re using one)
• A university student accommodation address

Warning: Do not use temporary accommodation addresses like hostels, backpacker lodges, or hotels. You need an address where you’ll reliably receive mail for at least the next month. Many students make the mistake of using their first hostel’s address, then move before their TFN arrives and can’t track it down later.

If you’re applying through Australia Post or submitting a paper application, you’ll need to provide certified copies of your identity documents. Certified copies are photocopies that have been verified by an authorized person as true copies of the original documents.

Authorized people who can certify your documents include:

• Justice of the Peace
• Police officer
• Registered medical practitioner
• Pharmacist
• Australia Post staff (when using their TFN service)
• Teacher at a school, college, or university

---

How to Apply for a TFN: Your 4 Options

There are four main ways to apply for a TFN in Australia. The best method for you depends on your circumstances, the documents you have, and how quickly you need your TFN.

Method 1: Online Application with Digital ID (Fastest – New in 2026)

Who can use this method:

• Australian citizens aged 15 and over
• Must have a Strong identity strength in your Digital ID

Estimated time: Immediate to 28 days (many people receive their TFN within hours)

This is the newest and fastest way to get a TFN, made possible by Australia’s Digital ID Act that came into full effect in 2024. If you’re eligible, this is absolutely the method you should use.

Step-by-step process:

1. Download the myID app from the Apple App Store or Google Play Store on your smartphone
2. Open the app and create your Digital ID account using your email address
3. Verify your Australian passport by scanning it with your phone’s camera (the app uses NFC technology to read the chip in your passport)
4. Add a secondary identity document:
   • Australian driver’s license (preferred)
   • Medicare card
   • Australian birth certificate
   • Bank statement
5. Complete the face verification check:
   • The app will ask you to take a selfie
   • You’ll need to move your head slightly to prove you’re a real person
   • The app compares your selfie to your passport photo
6. Once verified, you’ll have a Strong identity strength Digital ID
7. Go to the ATO website and select “Apply for a TFN – Australian citizens with a Strong Digital ID”
8. Sign in with your Digital ID (the app will prompt you to confirm)
9. Complete the short online form with your:
   • Personal details
   • Contact information
   • Reason for needing a TFN
10. Review and submit your application
11. Consent to link your myGov account to ATO online services

What happens next:

If your application is processed immediately (which is increasingly common), you’ll receive your TFN straight away and it will be sent to your myGov Inbox. You can access it instantly by signing into myGov with your Digital ID.

If your application needs manual processing, you’ll receive a reference number on screen and your TFN will be mailed to your myGov Inbox within 28 days.

Important notes:

• The email address you use for myID must match your myGov email if you already have a myGov account
• Once you use Digital ID to access ATO services, you must always use it (you cannot switch back to password access)
• Digital ID is the most secure access method, offering strong protection against fraud

Method 2: Online Application via Australia Post

Who can use this method:

• Australian citizens and residents
• Permanent migrants
• Temporary visitors with work visas

Estimated time: 28 days from when Australia Post verifies your documents

This is the most common method for people who don’t have Digital ID or aren’t eligible for the fast-track process.

Step-by-step process:

1. Visit the Australia Post TFN application website (search for “Apply for a TFN Australia Post” on the ATO website to find the correct link)
2. Complete the online form with your:
   • Personal details (name, date of birth, address)
   • Contact information (phone, email)
   • Visa details (for non-citizens)
   • Reason for needing a TFN
3. Answer questions about previous TFN applications and tax history
4. Review your information carefully and submit
5. Print the application summary page, which includes your application reference number
6. Find a participating Australia Post outlet near you (use the store locator on the Australia Post website)
7. Within 30 days of completing the online form, visit Australia Post with:
   • Your printed application summary
   • Your original, current identity documents (not copies)
8. A staff member will verify your identity by checking your documents against your application
9. Sign your application at Australia Post

What happens next:

Australia Post sends your verified application to the ATO. You should receive your TFN by mail within 28 days to the address you provided on your application. The TFN will be sent as a physical letter – you cannot receive it by email.

Important notes:

• There is no fee for this service at Australia Post
• You must use current, original documents (not expired ones)
• The 30-day deadline is strict – if you miss it, you’ll need to start over with a new application
• Keep your reference number safe in case you need to follow up

Method 3: Paper Application via Services Australia (Centrelink)

Who can use this method:

• Centrelink customers
• People who cannot access other application methods

Estimated time: 28 days from when Services Australia receives your complete application

This method is mainly for people who are already interacting with Centrelink for other services and want to apply for a TFN at the same time.

Step-by-step process:

1. Order the paper TFN application form:
   • Call 1300 720 092 (24 hours, 7 days)
   • Or order online through the ATO Publications Ordering Service
   • Or visit a Services Australia center to collect one
2. Choose the right form:
   • NAT 1432: Tax file number – application or enquiry for individuals (standard form)
   • NAT 1589: Tax file number – application for Aboriginal and Torres Strait Islander people (if you don’t have enough standard identity documents)
3. Complete the form carefully, filling in all required sections
4. Gather your original identity documents
5. Visit a Services Australia center with:
   • Your completed form
   • Your original identity documents
6. If applying for Centrelink benefits, authorize Centrelink to receive your TFN from the ATO
7. Submit your application with the staff member

What happens next:

Services Australia verifies your documents and forwards your application to the ATO. Your TFN will be mailed to you and to Centrelink (if you authorized them) within 28 days.

Important notes:

• You must provide original documents, not copies
• Services Australia staff can help you complete the form if you’re unsure
• This method is slower than Digital ID but still reliable

Method 4: Paper Application by Mail

Who can use this method:

• Anyone who cannot use the other three methods

Estimated time: 28+ days (often longer due to mail processing times)

This is the slowest method and should only be used as a last resort. However, it’s available to everyone regardless of their circumstances.

Step-by-step process:

1. Order the NAT 1432 form:
   • Call 1300 720 092
   • Or download and print from the ATO website
   • Or order through the Publications Ordering Service
2. Read the instructions carefully (the NAT 1432 instructions document)
3. Complete the form, making sure to:
   • Write clearly in pen
   • Provide all required information
   • Sign and date the form
4. Get certified copies of your identity documents (regular photocopies are not accepted)
5. Attach the certified copies to your completed form
6. Mail everything to the address shown on the form (address varies by state)

What happens next:

The ATO will process your application once received. Your TFN will be mailed to the postal address you provided on the form. Processing typically takes 28 days but can take longer due to mail transit times and manual processing.

Important notes:

• This is the slowest method – expect 6-8 weeks total in some cases
• Certified copies must be properly certified by authorized persons
• Keep copies of everything you mail in case it gets lost
• Consider using registered post for tracking

Comparison: Which Method Should You Choose?

Method	Speed	Who Can Use	Main Benefit	Drawback
Digital ID	Fastest (instant to days)	Australian citizens 15+	Immediate in many cases	Need smartphone & tech skills
Australia Post	28 days	Most people	Widely accessible	Need to visit in person
Services Australia	28 days	Centrelink customers	Good if already visiting	Limited to specific groups
Mail	28+ days	Everyone	Works for complex cases	Very slow

Our recommendation:

• Australian citizens 15+: Use Digital ID without question
• International students/visa holders: Use Australia Post online + in-person
• Centrelink customers: Use Services Australia if already there, otherwise Australia Post
• Everyone else: Use Australia Post method

---

Understanding the 2026 Digital ID Update

The biggest change to TFN applications in recent years has been the introduction of the Digital ID system. Since the Digital ID Act became fully operational in 2024, the Australian government has been rolling out this technology across various services, with the ATO being one of the early adopters.

What is Digital ID?

Digital ID is Australia’s national digital identity system, designed to make it easier and more secure for you to prove who you are when accessing government services online. Instead of repeatedly showing physical identity documents or remembering multiple passwords, you create a verified digital identity once and use it across multiple services.

Think of it as a digital version of showing your passport or driver’s license, but with much stronger security protections built in. Your Digital ID is stored in an app on your phone (currently the myID app is the most common provider, but other accredited providers will be available soon).

How Digital ID Changed TFN Applications

Before Digital ID, every Australian had to either:

• Visit Australia Post with physical documents
• Mail certified copies of identity documents
• Visit a Services Australia office

This meant waiting weeks for processing and dealing with physical paperwork. With Digital ID, Australian citizens can now:

• Apply entirely from their smartphone
• Get instant identity verification
• Receive their TFN digitally in their myGov Inbox
• Skip all paper documents and in-person visits

For many people, the entire process from starting the application to receiving their TFN now takes less than an hour. This is revolutionary compared to the old 28-day waiting period.

Strong Identity Strength: What It Means

Digital ID has different “strength” levels based on how thoroughly your identity has been verified:

Basic identity strength:

• Verified with fewer documents
• Can access some government services
• Not sufficient for TFN applications

Standard identity strength:

• More verification required
• Access to more services
• Still not enough for TFN

Strong identity strength:

• Highest level of verification
• Requires government-issued photo ID plus face verification
• This is what you need for TFN applications

To achieve Strong identity strength, you need to:

1. Verify your Australian passport (which includes a security chip)
2. Add at least one more identity document
3. Complete face verification by taking a selfie that’s matched to your passport photo

The system uses your phone’s camera and NFC (Near Field Communication) technology to read the secure chip in your passport, making it extremely difficult to fake or fraud.

Privacy and Security with Digital ID

A common concern is: “Doesn’t putting all my identity in one digital place make me more vulnerable?”

Actually, the opposite is true. Here’s why Digital ID is more secure than traditional methods:

Distributed storage: Your information isn’t stored in one giant government database. Each service (like the ATO) only receives the specific information they need from your Digital ID provider. The Digital ID system itself acts as a secure bridge, not a central storage point.

Biometric verification: The face verification step ensures that the person applying is actually you, not someone who stole your documents. This is much harder to fake than a signature on a paper form.

Encrypted data: All information transmitted through the Digital ID system is encrypted using modern security protocols. This means even if someone intercepted the data during transmission, they couldn’t read it.

Reduced document sharing: Ironically, using Digital ID means you share your physical documents less often. Before, you might have needed to show your passport or driver’s license to dozens of different businesses and services. Each time you did, you created another point where those document details could be copied, photographed, or stolen. With Digital ID, you verify your documents once, securely, and then use your Digital ID instead of showing the physical documents repeatedly.

Activity logs: You can see exactly when and where your Digital ID has been used, making it easy to spot unauthorized access attempts.

What If You Can't Use Digital ID?

Digital ID for TFN applications is currently only available to Australian citizens aged 15 and over. If you don’t fit this category, you’ll need to use one of the traditional application methods described earlier.

This isn’t a disadvantage – the Australia Post method is still reliable, widely accessible, and processes applications within the standard 28-day timeframe. Think of Digital ID as a fast-track option that’s available to some applicants, not a requirement for everyone.

The Future of Digital ID in Australia

Digital ID is still expanding. The government’s roadmap includes:

Late 2026: Private sector companies may begin accepting Digital ID for identity verification (think: opening bank accounts, applying for rental properties, starting phone contracts)

Beyond 2026: More government services will integrate Digital ID, making it a truly universal identity system across federal, state, and local government interactions

For now, if you’re eligible to use Digital ID for your TFN application, it’s worth setting it up. Even if it doesn’t speed up your TFN application significantly, you’ll have it ready for other services that will require it in the future.

You can learn more about setting up your myGov account in our guide on opening a bank account in Australia, which also requires identity verification.

---

TFN Processing Times and What to Expect

Understanding realistic timeframes helps you plan when to apply for your TFN. Here’s what actually happens after you submit your application.

Standard Processing Time: 28 Days

The ATO’s official processing time for TFN applications is up to 28 days. This timeframe applies to:

• Australia Post applications (from when Australia Post verifies your documents)
• Paper applications via Services Australia
• Mail applications (from when the ATO receives your documents)
• Digital ID applications that require manual review

The 28-day period is not a guarantee – many applications are processed faster, but some take the full 28 days, especially during busy periods like the start of the academic year when thousands of international students are applying.

Digital ID Fast-Track

For Australian citizens using the Digital ID method, processing can be:

Immediate: If your application passes all automated checks, you may receive your TFN within minutes of submitting your application

Same day: Many applications are processed within a few hours

Up to 28 days: If manual review is needed (for example, if there’s a name mismatch in the system or additional verification is required)

Even in the “slower” Digital ID cases where manual review is needed, you’re typically looking at days rather than weeks.

How You'll Receive Your TFN

The delivery method depends on how you applied:

Digital ID applications:

• TFN sent to your myGov Inbox
• You can access it immediately by signing into myGov
• A letter may also be sent to your physical address for your records

All other applications:

• TFN sent by regular post to the address on your application
• Arrives as an official letter from the ATO
• Cannot be sent by email, SMS, or phone call (anyone claiming to send you a TFN these ways is a scammer)

What Causes Delays

Several factors can slow down your application:

Incomplete information: If you left sections blank or provided unclear answers, the ATO may need to contact you for clarification, adding weeks to the process.

Multiple applications: If you accidentally submit more than one application (people often do this thinking their first attempt didn’t work), it confuses the system and requires manual intervention to sort out.

Name or date of birth issues: If your name is spelled differently across your documents (for example, your passport says “Mohammed” but your visa says “Muhammad”), this triggers additional checks.

Document verification problems: For paper applications, if your certified copies don’t meet requirements or the certifying person’s details are unclear, your application will be delayed or rejected.

Peak periods: December through March is extremely busy as the academic year starts and thousands of students arrive in Australia. Applications during these months often take the full 28 days.

Identity verification complications: If the ATO’s systems cannot automatically verify your identity against government records, a real person needs to manually check your application.

Tracking Your Application

Unfortunately, there’s no real-time tracking system for TFN applications like you’d have with a package delivery. Here’s what you can do:

Keep your reference number: When you complete your application (by any method), you’ll receive a reference number. Write this down or screenshot it. You’ll need it if you contact the ATO.

Wait the full 28 days: Resist the urge to call the ATO after a week. They process applications in the order received, and calling early won’t speed things up.

After 28 days, contact the ATO: If you haven’t received your TFN after 28 days, call 13 28 61 between 8am and 6pm Monday to Friday. Have your reference number and identity details ready.

Don’t reapply: Submitting a second application will actually slow things down, not speed them up. If you’re worried your first application didn’t go through, call the ATO to check rather than reapplying.

Starting Work Before Your TFN Arrives

Here’s some good news: you don’t have to wait the full 28 days to start work. You can begin working immediately as long as you:

1. Have already submitted your TFN application
2. Provide your employer with your TFN application reference number
3. Complete a TFN declaration form for your employer
4. Give your employer your TFN within 28 days of starting work

Your employer will withhold tax at a higher rate temporarily (often around 45%), but once you provide your TFN, they’ll adjust to the correct rate and you’ll get the overpaid tax back when you lodge your tax return.

This 28-day grace period is specifically designed for newcomers to Australia who need to start work before their TFN arrives. Just make sure you actually follow through and give your employer the TFN once you receive it – if you don’t, they’ll continue withholding at the higher rate indefinitely.

For more information about what happens after you start work, including understanding your first payslip, check our guide on understanding Australian payslips.

---

How to Find Your Lost or Forgotten TFN

Lost your TFN number? Don’t panic. Since your TFN never expires and you can’t get a new one, the ATO has several ways to help you find your existing number.

Method 1: Check myGov (Fastest)

If you have a myGov account that’s already linked to the ATO, this is the quickest way to find your TFN:

1. Go to www.my.gov.au
2. Sign in with your username and password (or use your Digital ID)
3. Select Australian Taxation Office from your linked services
4. On the ATO main page, look for the “Find my TFN” button
5. Click it and your TFN will display immediately

Setting up myGov if you don’t have it:

If you don’t have a myGov account yet, you can create one for free:

1. Go to www.my.gov.au and click “Create account”
2. Provide your email and create a password
3. Verify your email address
4. Link to ATO online services by answering questions about your tax history (the ATO uses these to verify your identity)
5. Once linked, you can access your TFN instantly

The linking process requires you to answer questions about your previous tax returns or income statements, so it works best if you’ve worked and lodged a tax return in Australia before.

Method 2: Check Existing Documents

Before calling the ATO or setting up myGov, check if your TFN is already written on documents you have:

Income tax notice of assessment: If you’ve lodged a tax return before, your TFN appears in the top right corner of your notice of assessment. Check your email if you lodged online, or look through any paper mail from the ATO.

Previous payslips: Many employers include your TFN on payslips (though some don’t for security reasons). Look at a few recent payslips to see if your TFN is listed.

Payment summaries: At the end of each financial year (June 30), employers issue payment summaries (or income statements) that include your TFN. These are usually sent in July.

Superannuation statements: Your super fund statements typically show your TFN. Check any super statements you’ve received by email or mail.

Bank statements: If you provided your TFN to your bank when opening your account, it might appear on some documents (though banks usually don’t print it for security reasons).

Previous tax returns: If you kept copies of tax returns you lodged in previous years, your TFN will be on them.

Method 3: Contact Your Tax Agent

If you’ve used a registered tax agent to lodge your tax returns, they have your TFN on file and can provide it to you. Call them and ask – this is a normal request and they should be able to tell you immediately.

Remember that only registered tax agents have legitimate access to your tax information. Don’t trust anyone who is not a registered agent to handle your TFN.

Method 4: Call the ATO

If none of the above methods work, you can call the ATO directly:

Phone: 13 28 61
Hours: Monday to Friday, 8am to 6pm (local time in your state)

When you call, you’ll need to:

• Provide your full name and date of birth
• Answer identity verification questions (they might ask about previous addresses, past employers, or tax information)
• Explain that you’ve lost or forgotten your TFN
• Have a pen ready to write down the number when they tell you

The ATO staff will verify your identity before providing your TFN. This is a security measure to protect you from identity theft.

Be patient: The ATO receives high call volumes, especially during tax season (July to October). You might wait on hold for 20-30 minutes or longer. Consider calling early in the morning or mid-week for shorter wait times.

Method 5: Use the ATO App

The ATO has a mobile app that gives you access to your tax information:

1. Download the ATO app from the Apple App Store or Google Play Store
2. Sign in using your myGov credentials or Digital ID
3. Your TFN will be accessible through the app just like it is through myGov on a computer

The app is particularly useful if you’re on the go and need your TFN quickly, such as when starting a new job.

Important: You Only Have ONE TFN

This is crucial to understand: the ATO will not issue you a new TFN. Every person gets exactly one TFN in their lifetime. Even if:

• You lost your TFN letter
• You can’t remember your TFN
• You changed your name
• You changed your visa status
• You left Australia and came back years later
• You became an Australian citizen after being on a temporary visa

You still have the same TFN. The ATO’s systems keep your TFN linked to your identity permanently. When you apply for Australian citizenship, change your name due to marriage, or update other personal details, your TFN doesn’t change – only the associated information is updated.

This is actually a security feature. If someone could just get a “new” TFN whenever they wanted, it would be much easier to commit tax fraud or identity theft. The permanent nature of TFNs helps protect you.

What If You Never Applied for a TFN?

If you’re certain you never applied for a TFN before, you need to apply fresh rather than trying to “find” one. However, double-check first because:

• Your parents might have applied for a TFN on your behalf when you were a child
• You might have applied years ago and forgotten
• You might have applied as part of a Centrelink benefit application

Call the ATO on 13 28 61 and explain your situation. They can check their systems to see if a TFN already exists for you before you go through the application process.

---

Protecting Your TFN: Security and Fraud Prevention

Your TFN is one of your most important pieces of personal information in Australia. In the wrong hands, it can be used for identity theft, tax fraud, and financial crimes. Here’s how to protect it.

The Current Threat Landscape (2026)

TFN fraud has been a growing problem in Australia. In 2023, cybercriminals used stolen TFNs to redirect tax refunds worth over $500 million. Major data breaches at companies like Optus (2022), Medibank (2022), and Latitude Financial (2023) exposed millions of Australians’ personal details, including information that could be used to fraudulently obtain or misuse TFNs.

The risk isn’t just theoretical – it’s real and ongoing. However, you can significantly reduce your risk by following basic security practices.

Who Should Have Your TFN

Only four categories of organizations ever have a legitimate need for your TFN:

1. The Australian Taxation Office Obviously, the ATO needs your TFN since they issued it. You’ll provide your TFN when lodging tax returns, contacting the ATO, or using their online services.

2. Your employer When you start a job, your employer needs your TFN to report your wages to the ATO and withhold the correct amount of tax. Important: You do NOT need to provide your TFN to a prospective employer during the job application or interview stage. Only give your TFN after you’ve accepted a job offer and are completing employment paperwork.

3. Your bank or financial institution (optional but recommended) Banks ask for your TFN so they can withhold tax at the correct rate on interest earned. You’re not legally required to provide it, but if you don’t, the bank will withhold 47% tax on your interest. For most people, it makes sense to provide your TFN to your primary bank. Learn more in our guide on choosing the right Australian bank.

4. Your superannuation fund (optional but recommended) Your super fund uses your TFN to tax your contributions at 15% instead of 47%, and to enable government co-contributions. While technically optional, not providing your TFN to your super fund costs you money. More details in our guide on superannuation for international students.

Who Should NEVER Have Your TFN

Prospective employers: Don’t give your TFN during job applications or interviews. Wait until after you’ve accepted a position and are filling out employment forms.

Accommodation providers: Your landlord, hostel, or student accommodation does not need your TFN. If they ask for it, this is a red flag.

Phone or internet companies: Telcos do not need your TFN to provide services.

Universities and colleges: Your educational institution does not need your TFN for enrollment or student services.

Travel agents or airlines: Never provide your TFN when booking flights or travel.

Online shopping sites: No retail website should ask for your TFN.

Social media platforms: Never post your TFN on social media, even in “private” messages or groups.

Friends, family, or roommates: There’s no legitimate reason anyone in your personal life needs to know your TFN.

Never Share Your TFN Via

• Email: Even “secure” email can be intercepted. The ATO will never ask you to send your TFN by email.
• SMS or text message: Easy to intercept and impossible to verify the recipient.
• Phone calls: Unless you initiated the call to a verified ATO number, never give your TFN over the phone. Scammers often impersonate ATO staff.
• Unsecured websites: Only enter your TFN on official government websites that show HTTPS in the URL and have proper security certificates.
• Paper forms left in public: Be careful when filling out forms in public places. Don’t leave TFN paperwork on tables in cafes, libraries, or on campus.
• Photos of documents: Don’t take photos of your TFN letter and store them in unencrypted cloud storage where they could be accessed if your account is hacked.

Essential Security Practices

1. Use strong, unique passwords Your myGov account is the main gateway to your TFN and tax information. Use a strong password that:

• Is at least 12 characters long
• Includes uppercase, lowercase, numbers, and symbols
• Is not used for any other account
• Is not based on personal information (birthdays, names, etc.)

Consider using a password manager to generate and store complex passwords securely.

2. Enable two-factor authentication myGov and the ATO support two-factor authentication (2FA). This means that even if someone steals your password, they can’t access your account without also having access to your phone or email. Enable this immediately:

• Go to myGov settings
• Select “Account Security”
• Set up 2FA using your mobile phone number or email
• Save backup codes in a secure location

3. Use Digital ID for strongest security If you’re eligible, using Digital ID to access ATO services provides the highest level of security. The biometric verification and encrypted connections make it significantly harder for fraudsters to access your information compared to password-only access.

4. Monitor your myGov account regularly Check your myGov and ATO online account every few months for:

• Unexpected tax returns lodged in your name
• Changes to your bank account details that you didn’t make
• Income reported by employers you don’t work for
• Super contributions from unknown employers

Early detection means you can stop fraud before significant damage occurs.

Signs Your TFN Has Been Compromised

Watch for these red flags that might indicate someone is misusing your TFN:

Tax-related signs:

• You receive unexpected tax bills for income you didn’t earn
• Your tax refund is delayed or doesn’t arrive
• You get a notice saying someone already lodged a tax return in your name for the current year
• The ATO contacts you about employment you don’t have

Superannuation signs:

• Your super balance decreases unexpectedly
• You see contributions from employers you’ve never worked for
• You receive super statements from funds you didn’t set up

Other signs:

• You’re denied government benefits because the system shows you have unreported income
• Debt collectors contact you about debts you didn’t incur
• You receive Centrelink payments you didn’t apply for

What to Do If Your TFN Is Stolen or Compromised

If you suspect your TFN has been stolen or is being misused, act immediately:

1. Contact the ATO Client Identity Support Centre Phone: 1800 467 033
Hours: Monday to Friday, 8am to 6pm

Tell them you believe your TFN has been compromised. The ATO will:

• Place security monitoring on your account
• Investigate suspicious activity
• Require additional verification for all future transactions
• Potentially lock your account from online access until you verify your identity in person

Important: Once the ATO places security measures on your account, they stay there permanently. This means for the rest of your life, you’ll need to call the ATO before lodging tax returns or making significant changes to your account. While inconvenient, this is necessary to protect you from ongoing fraud.

2. Change all your passwords Immediately change passwords for:

• myGov
• Email accounts
• Bank accounts
• Any other financial services

Use strong, unique passwords for each account.

3. Check your bank accounts Review your bank statements for unauthorized transactions. If you find any, contact your bank immediately to report fraud.

4. Monitor your credit In Australia, you can request a free copy of your credit report from:

• Equifax
• Experian
• Illion

Check these reports for accounts or loans you didn’t open. If you find fraudulent accounts, report them to the credit agency and the financial institution involved.

5. Consider a credit freeze Contact the credit reporting agencies and request a ban on your credit report. This prevents anyone (including you) from opening new credit accounts until you lift the ban.

6. Report to police If you’ve experienced significant financial loss or identity theft, report it to your local police and get a police report number. You may need this for insurance claims or disputes with financial institutions.

7. Stay vigilant Continue monitoring your accounts closely for at least 12 months after a compromise. Criminals often make small test transactions first, then come back months later for larger fraud.

Recognizing TFN Scams

Scammers use various tactics to steal TFNs. Here’s what to watch out for:

ATO impersonation scams:

• The scam: You receive a phone call, email, or SMS claiming to be from the ATO, saying you owe money or your TFN is being suspended
• The truth: The ATO never demands immediate payment over the phone, never threatens arrest, and never suspends TFNs
• What to do: Hang up, delete the email, and report it to the ATO

Data breach exploitation:

• The scam: After a data breach (like Optus or Medibank), scammers use stolen information to create fake myGov accounts or file fraudulent tax returns
• The truth: If you were affected by a data breach, monitor your accounts extra carefully and consider extra security measures
• What to do: Change passwords, enable 2FA, and check your myGov account regularly

Job application scams:

• The scam: A “recruiter” asks for your TFN during the application process, claiming they need it to verify your work rights
• The truth: Legitimate employers never need your TFN until after you accept a job offer
• What to do: Refuse to provide your TFN during applications and report the suspicious job ad

Tax agent scams:

• The scam: Someone offers to “help” you get a bigger tax refund or expedite your TFN application for a fee
• The truth: TFN applications are free, and only registered tax agents should handle your tax affairs
• What to do: Check if someone is a registered tax agent on the Tax Practitioners Board website before using their services

For more information on staying safe online and protecting your information, see our guide on avoiding scams and fraud in Australia.

---

Common TFN Application Mistakes to Avoid

Small errors can delay your TFN application by weeks or even lead to rejection. Here are the most common mistakes and how to avoid them.

Application Mistakes

1. Incorrect personal details

The number one cause of delays is typos in your name, date of birth, or address. Even small differences matter:

• “Mohammad” vs “Mohammed” vs “Muhammad”
• “Anne” vs “Ann”
• Missing middle names
• Incorrect date format (mixing up day and month)

How to avoid it: Double and triple-check every field before submitting. Have someone else review your application if possible. Make sure your details exactly match your official documents.

2. Using a temporary address

Many newcomers use their hostel or hotel address on their TFN application because that’s where they’re staying when they first arrive. Then they move before the TFN arrives, and it gets lost.

How to avoid it: Use an address where you’ll definitely be able to receive mail for at least 6-8 weeks. Options include:

• A friend or family member’s address (with permission)
• Your university’s mail collection service
• Long-term accommodation you’ve already secured
• Your registered tax agent’s office

3. Wrong visa details

International students sometimes put their old visa details (like a tourist visa they used to enter Australia) instead of their current student visa details.

How to avoid it: Check your visa grant notice or use VEVO (Visa Entitlement Verification Online) to confirm your current visa subclass, visa number, and expiry date before filling out the application.

4. Submitting multiple applications

People worry their application didn’t go through, so they apply again. Or they try different methods hoping one will be faster. This actually slows everything down because the ATO has to manually sort out which application is the real one.

How to avoid it: Submit ONE application using ONE method. Keep your reference number. Wait the full 28 days before checking status. Don’t reapply unless the ATO specifically tells you your first application was not received.

5. Applying from outside Australia

The online system physically blocks applications from overseas IP addresses, but some people try using VPNs to get around this. These applications always fail verification checks because your physical location must match your declaration that you’re in Australia.

How to avoid it: Wait until you physically arrive in Australia before applying. Use your Australian SIM card data or Australian wifi when completing the application to avoid triggering location verification issues.

Document Mistakes

6. Expired documents

Submitting expired passports or expired visas causes automatic rejection.

How to avoid it: Check expiry dates on all documents before applying. If your passport is about to expire, renew it first, then apply for your TFN.

7. Incorrect document certification

For paper applications, poorly certified documents are a common rejection reason:

• Certifier didn’t sign or date properly
• Certifier’s details are illegible
• Certifier is not on the list of authorized people
• Wrong documents were certified

How to avoid it: Use the ATO’s list of authorized certifiers (like Australia Post staff, pharmacists, or police officers). Make sure they write “This is a true copy of the original document,” sign it, date it, and print their name, qualification, and registration number clearly.

8. Missing pages of documents

If your passport has been renewed or has emergency pages added, you need to show all relevant pages, not just the photo page.

How to avoid it: For paper applications, certified copies should include every page that has information on it (photo page, personal details page, visa page, etc.). For online applications, read instructions carefully about which documents to provide.

Timing Mistakes

9. Applying too late

Some people don’t realize they need a TFN until they’ve already started work. This means they’ve been taxed at 47% for several weeks unnecessarily.

How to avoid it: Apply for your TFN within your first week in Australia. The application takes 5-10 minutes, and there’s no reason to delay. Even if you don’t plan to work immediately, get your TFN early. You can find a first job guide in our article about best student jobs in Australia.

10. Not starting the application before your deadline

If using the Australia Post method, remember you have 30 days from completing the online form to visit Australia Post with your documents. Miss this deadline and you have to start completely over.

How to avoid it: Complete the online portion of your application when you know you’ll have time to visit Australia Post within the next week or two. Don’t complete it on your last day in one city if you’re about to travel to another city where you don’t know where the Australia Post outlets are.

Information Mistakes

11. Providing too much information

Some application fields ask for specific information. People sometimes add extra details thinking it will help, but it actually confuses the automated systems.

For example:

• Address field asking for street name: Write “Swanston Street,” not “123 Swanston Street, Carlton, Melbourne VIC 3000”
• Suburb field: Write “Carlton,” not “Carlton, close to Melbourne University”

How to avoid it: Read each question carefully and provide exactly what’s asked for – no more, no less.

12. Inconsistent information across applications

If you need to apply for both a TFN and an ABN, or if you’re updating your address with other government agencies, make sure all your information is consistent across all forms.

How to avoid it: Use the exact same spelling, format, and details on every government form. Keep a master document with your “official” versions of your name, address, etc. that you copy from each time.

Post-Application Mistakes

13. Moving without updating your address

Even if you used a stable address on your application, sometimes life happens and you need to move before your TFN arrives.

How to avoid it: If you move, update your address with the ATO immediately by calling 13 28 61. They can redirect your TFN letter to your new address.

14. Throwing away the TFN letter

Some people think “I’ll just remember the number” or “I wrote it down” and throw away the official TFN letter. Then years later, they can’t find where they wrote it down and have to go through the hassle of retrieving it.

How to avoid it: Keep your TFN letter somewhere safe with other important documents like your passport, visa grant notice, and educational certificates. Take a photo of it for your records, but keep the physical letter too.

15. Not providing your TFN to your employer within 28 days

You can start work with just your application reference number, but you must provide your actual TFN within 28 days. Some people forget or don’t follow up, resulting in ongoing high tax withholding.

How to avoid it: As soon as your TFN arrives (whether by mail or myGov Inbox), immediately contact your employer and provide it. Don’t wait – do it the same day.

---

TFN for International Students: What You Need to Know

If you’re studying in Australia on a student visa, your TFN is essential for part-time work. Here’s everything specific to your situation.

When to Apply

Best time: Within your first week in Australia
Latest you should apply: Before starting your first job search
Don’t wait until: You’ve already got a job offer

The sooner you apply, the better. Your course doesn’t need to have started for you to apply for a TFN – you just need to be physically in Australia with a valid student visa.

However, remember that your visa conditions don’t allow you to start work until your course has officially commenced. So while you can (and should) apply for your TFN immediately, you can’t actually use it for employment until your first day of classes.

Student Visa Work Rights in 2026

Understanding your work rights is just as important as having a TFN:

During semester:

• Maximum 48 hours per fortnight (14 days starting Monday)
• Can split hours any way across the fortnight (like 30 hours one week, 18 the next)
• Includes all paid work, both part-time jobs and casual shifts

During breaks:

• Unlimited hours during official semester breaks
• Unlimited hours during mid-semester breaks
• Unlimited hours during December-January summer break

HDR students (Higher Degree by Research):

• Unlimited work hours from the start of your course
• Applies to Masters by Research and PhD students
• Must be registered in a research program

Important: The ATO and the Department of Home Affairs share information about how much you earn. If you’re working too many hours, your employer reports your hours to the ATO, and this information is matched against your visa conditions. Working beyond your permitted hours is a serious visa breach that can lead to visa cancellation and deportation. Read more in our detailed guide on work rights for international students in Australia.

Tax Rates for Students

As an international student, your tax treatment depends on whether you’re considered an Australian resident for tax purposes. This is different from your visa status.

Australian resident for tax purposes: You’re generally treated as a resident for tax purposes if you’ve been in Australia for more than 6 months continuously. As a tax resident, you pay:

• $0 to $18,200: 0% (tax-free threshold)
• $18,201 to $45,000: 19% on amount over $18,200
• $45,001 to $135,000: $5,092 plus 30% of amount over $45,000

Non-resident for tax purposes: If you’ve been in Australia for less than 6 months, you’re typically a non-resident and pay:

• $0 to $135,000: 30% on every dollar (no tax-free threshold)

Most international students will be residents for tax purposes after their first six months in Australia. Find out more about this in our guide on resident vs non-resident tax in Australia.

Your TFN and Your Spouse/Partner

If your partner is included on your student visa as a dependent, they need their own separate TFN. Here’s how it works:

Dependent partners’ work rights:

• Undergraduate students’ partners: 48 hours per fortnight (same as primary visa holder)
• Masters or PhD students’ partners: Unlimited work hours

Applying for partner’s TFN: Your partner must apply separately using their own name and details. They’ll use the same application method (online via ATO website), but they cannot be added to your application. Each person needs their own individual TFN.

Common Student-Specific Scenarios

Scenario 1: “I’m starting work before my course begins” This violates your visa conditions. Even with a TFN, you cannot legally work until your course has commenced. Wait for your orientation week or first day of classes. The risk isn’t worth it – visa breaches can result in deportation.

Scenario 2: “I have a TFN from a previous visit to Australia” Great news! You can use the same TFN. It doesn’t matter if you were on a working holiday visa before and now you’re on a student visa – your TFN stays the same. Just use your existing number and complete a TFN declaration for your new employer.

Scenario 3: “I’m planning to work during Christmas break” Perfect – you can work unlimited hours during official university breaks. Make sure your employer knows you have unlimited work rights during this period, and keep your TFN handy for their records.

Scenario 4: “I accidentally worked 50 hours in a fortnight” This is a visa breach, even if accidental. If it’s a one-off and you’re otherwise compliant, it may not trigger any action. However, repeated breaches or significant overage (like working 70 hours in a fortnight) will likely be detected when your employer reports your earnings to the ATO. Be very careful to track your hours. Learn more about managing your work hours as a student.

Scenario 5: “My employer is asking for my TFN during the interview” This is unusual and potentially a red flag. Legitimate employers don’t need your TFN until after you’ve accepted a job offer and are completing employment paperwork. Politely explain you’re happy to provide it once you start work.

Balancing TFN, Study, and Work

Your TFN makes it possible to earn money while studying, but remember:

Why you’re here: You came to Australia primarily to study, not to work. Your visa requires you to maintain satisfactory academic progress.

Work is supplementary: Part-time work should support your living expenses, not be your main focus. Failing subjects because you’re working too much is a visa breach.

Tax return obligations: At the end of the financial year (June 30), you’ll need to lodge a tax return if you’ve earned income. This is when you’ll get back any overpaid tax. See our guide on lodging your first tax return in Australia.

Super considerations: Your employer will contribute to superannuation for you. When you leave Australia permanently, you can claim this back, but you need your TFN to do so. Read more in our superannuation for international students guide.

---

TFN vs ABN: Understanding the Difference

Many newcomers to Australia get confused about whether they need a Tax File Number (TFN), an Australian Business Number (ABN), or both. Here’s the clear breakdown.

What's the Difference?

Tax File Number (TFN):

• For individuals
• 9 digits
• Used for personal income tax and superannuation
• Required for employment as an employee
• Free to obtain
• Lasts forever

Australian Business Number (ABN):

• For businesses, sole traders, and contractors
• 11 digits
• Used for business operations and GST
• Required if you work as a contractor or run a business
• Free to obtain
• Can be cancelled if you stop your business

When You Need a TFN

You need a TFN when you:

• Work as an employee for someone else
• Open a bank account (recommended, not mandatory)
• Lodge a tax return
• Receive superannuation
• Apply for government benefits (if eligible)

Example situations:

• Working part-time at a cafe or restaurant
• Casual work at a supermarket
• On-campus university job
• Retail position at a clothing store

When You Need an ABN

You need an ABN when you:

• Work as an independent contractor (not an employee)
• Run your own business, even part-time
• Provide services as a sole trader
• Earn business income

Example situations:

• Freelance graphic design work
• Private tutoring as a business
• Selling products online regularly
• Contracting for multiple clients

When You Need Both

Many people need both a TFN and an ABN:

Sole traders: If you run your own business as a sole trader, you need:

• TFN for your personal income tax
• ABN for your business operations

Contractors: If you work as an independent contractor (like many IT contractors, tradies, or consultants), you need:

• TFN for lodging your personal tax return
• ABN to invoice clients

Mixed work: If you have a part-time job as an employee AND run a side business, you need both

Important: When to Get Each One

Get your TFN first: You must have a TFN before you can apply for an ABN. The ABN registration system requires you to enter your TFN as part of the application.

Timeline:

1. Apply for TFN (wait up to 28 days)
2. Once you have your TFN, apply for ABN (usually approved within days)

Can You Quote Your ABN Instead of Your TFN?

This is a common misunderstanding. The rules are:

For employment: No, you must provide your TFN
For contracting/business income: Yes, you quote your ABN
For banking: You provide your TFN (not ABN)
For superannuation: You provide your TFN (not ABN)
For tax returns: You need your TFN

Why it matters: If you work as an employee but only give your employer an ABN, they cannot pay you. Employee wages must be processed using a TFN, not an ABN.

Employee vs Contractor: Know the Difference

This is crucial because misclassification can lead to problems:

You’re an employee if:

• Your employer controls when, where, and how you work
• You receive regular wages with tax withheld
• You get superannuation contributions
• You receive paid leave (sick leave, annual leave)
• Your employer provides tools and equipment
• You work set hours or shifts
• You can’t subcontract your work to someone else

You’re a contractor if:

• You control how you do the work
• You invoice for services
• You handle your own tax obligations
• You don’t receive paid leave
• You use your own tools and equipment
• You set your own hours
• You can delegate work to others
• You work for multiple clients

Grey area: Some employers try to classify workers as contractors when they’re really employees (to avoid paying superannuation and leave entitlements). If you’re unsure, check the Fair Work Ombudsman’s website or call them for advice.

Tax Obligations with ABN

Having an ABN changes your tax responsibilities:

No tax withheld: Unlike employee wages where tax is automatically withheld, contractors must set aside money for tax themselves

Quarterly BAS: Depending on your turnover, you may need to lodge quarterly Business Activity Statements

End of year tax: You lodge a personal tax return that includes your business income

GST registration: If your business earns over $75,000 per year, you must register for GST

For most international students doing occasional freelance work, your business income will be low enough that you only deal with annual tax returns, not quarterly reporting.

For International Students: Be Careful

Your student visa work rights (48 hours per fortnight) apply to ALL work, whether as an employee or contractor. Working as a contractor doesn’t exempt you from work hour limits.

Example: If you work 30 hours as an employee at a supermarket and 20 hours as a freelance tutor in the same fortnight, you’ve breached your visa conditions, even though the tutoring is ABN work.

The Department of Home Affairs can see your total earnings reported to the ATO and calculate approximately how many hours you’ve worked based on average wages in your industries.

For more details, see our comprehensive guide on TFN vs ABN for students in Australia.

---

What to Do After Getting Your TFN

You’ve received your TFN – congratulations! Now here’s how to actually use it and keep it safe.

Store Your TFN Safely

Physical storage:

• Keep your TFN letter with other important documents (passport, visa papers, birth certificate)
• Consider a small fireproof document safe or locked drawer
• Don’t carry your TFN letter in your wallet or everyday bag

Digital storage:

• Take a photo and store it in a secure, password-protected location
• Use encrypted cloud storage if you need digital access
• Don’t store it in easily accessible places like unprotected phone galleries
• Don’t email it to yourself through unsecured email

Memory:

• Many people memorize their TFN since it’s used frequently
• If you do memorize it, still keep physical and digital copies as backup
• Don’t write it on sticky notes or in easily visible places

Link Your TFN to myGov

Even if you didn’t apply through Digital ID, linking your TFN to myGov gives you convenient access to your tax information:

1. Go to www.my.gov.au
2. Create an account if you don’t have one
3. Link to the Australian Taxation Office
4. Answer verification questions (about previous addresses, employers, or tax returns)
5. Once linked, you can view your TFN anytime

Having myGov linked to the ATO is essential for:

• Lodging tax returns online
• Checking your tax information
• Updating personal details
• Receiving secure communications from the ATO

Provide Your TFN to Your Employer

When you start a new job:

Step 1: Give your employer your TFN number (not the physical letter – just tell them the 9 digits)

Step 2: Complete a TFN declaration form (your employer will provide this, or you can download it from the ATO website)

Step 3: The TFN declaration asks questions like:

• Are you an Australian resident for tax purposes?
• Do you want to claim the tax-free threshold?
• Do you have a HELP/HECS debt?

Step 4: Your employer processes this information in their payroll system

Tax-free threshold: Only claim this with ONE employer if you have multiple jobs. The tax-free threshold ($18,200 per year) is per person, not per job. If you claim it with multiple employers, you’ll have underpaid tax and owe money when you lodge your return.

Update Your Bank

If you opened your bank account before getting your TFN, update your bank details:

1. Log into your online banking
2. Look for “tax file number” in account settings or profile
3. Enter your TFN
4. Save changes

This ensures you’re taxed at the correct rate on account interest. While bank interest on small amounts is minimal, it’s good practice to keep your details up to date.

Update Your Superannuation Fund

If you’ve started work and have a super account:

1. Log into your super fund’s website
2. Find “personal details” or “tax information”
3. Add your TFN
4. Confirm the update

This ensures your super contributions are taxed at 15% instead of 47%, saving you hundreds or thousands of dollars over time.

Keep Your Details Current

Life changes, and when it does, update your TFN details with the ATO:

When you move: Update your address through myGov or by calling the ATO

When you change your name: After marriage, divorce, or legal name change, update your name through myGov or with a phone call to the ATO. You’ll need to provide proof like a marriage certificate or change of name certificate.

When you change jobs: Your new employer will process a new TFN declaration, automatically updating your employment information with the ATO

When you change banks: Make sure your new bank has your TFN

When you leave Australia: If you’re leaving permanently, you can notify the ATO. This doesn’t cancel your TFN (TFNs are never cancelled), but it updates your status in their system.

Use Your TFN Responsibly

Do:

• Give it to your employer once you’ve accepted a job offer
• Provide it to your bank and super fund
• Use it when lodging tax returns
• Keep it confidential and secure

Don’t:

• Share it on social media or in emails
• Give it to people or organizations that don’t need it
• Let anyone else use it
• Use someone else’s TFN (this is a serious crime)

Plan for Tax Time

Having a TFN means you’ll need to lodge a tax return each year if you earned income:

Financial year in Australia: July 1 to June 30

Tax return due date: October 31 (if you’re lodging yourself), or later if using a registered tax agent

What you’ll need:

• Your TFN
• Payment summaries or income statements from all employers
• Bank interest information
• Any deductions you can claim (work-related expenses, self-education costs)

Most international students receive a tax refund because your employer withholds tax assuming you’ll earn the full year’s income, but as a student working part-time, you often earn less and are entitled to money back.

Learn how to lodge your tax return in our step-by-step guide on lodging your first tax return in Australia.

---

Key Takeaways and Next Steps

Let’s recap the essential points about Tax File Numbers in Australia:

Remember These Key Facts

• Your TFN is a 9-digit number that lasts forever
• It’s completely free – never pay anyone to apply
• You’ll be taxed at 47% without one
• You must be in Australia when you apply (cannot apply from overseas)
• Processing takes up to 28 days (faster with Digital ID for citizens)
• Your TFN never expires or changes, even if you change visas, names, or leave and return to Australia
• You only ever have ONE TFN – you can’t get a new one if you lose it

Your Action Plan

Before arriving in Australia:

• Gather your identity documents (passport, visa grant notice)
• Have an Australian address ready where you can receive mail

First week in Australia:

• Apply for your TFN using the appropriate method for your situation
• Keep your application reference number safe
• Set up your Australian bank account (you can read more in our guide on opening a bank account in Australia)

While waiting for TFN:

• You can start looking for work
• Get your resume ready (check our Australian resume guide)
• Understand your visa work conditions

After receiving TFN:

• Store it safely (physical and digital copies)
• Link to myGov
• Provide to employer when starting work
• Update bank and super fund
• Set reminders to lodge tax returns each year

Get More Help

Official resources:

• Australian Taxation Office: www.ato.gov.au
• ATO phone line: 13 28 61
• myGov: www.my.gov.au

Related guides on our site:

• Understanding your payslip in Australia
• How to lodge your first tax return
• Superannuation for international students
• Work rights for international students
• Best student jobs in Australia

Final Words

Your Tax File Number is one of the first and most important administrative tasks you’ll complete in Australia. While the process might seem daunting, thousands of international students and newcomers successfully apply for TFNs every week. The key is to follow the instructions carefully, use the right application method for your situation, and be patient during the processing time.

Don’t let the bureaucracy overwhelm you. Getting a TFN is straightforward, and once you have it, you’ll use it throughout your entire time in Australia without needing to think about it again. Focus on applying correctly the first time, keep your TFN safe and confidential, and you’ll be all set.

Welcome to Australia, and best of luck with your studies, work, and new life here!

Frequently Asked Questions About TFN in Australia

General TFN Questions

Q: What does TFN stand for?

TFN stands for Tax File Number. It’s a unique 9-digit identifier issued by the Australian Taxation Office (ATO) to individuals and organizations for tax and superannuation purposes.

---

Q: Is a TFN the same as a social security number?

Not exactly. While a TFN serves a similar purpose to the US Social Security Number or UK National Insurance Number, Australian law strictly limits where TFNs can be used. A TFN is only for tax, superannuation, and specific government services – it cannot be used as general identification like social security numbers are used in other countries. This restriction helps protect your privacy and reduces identity theft risks.

---

Q: How many digits is a TFN?

A TFN is always 9 digits long, usually written in the format 123 456 789. Older business TFNs from before 1988 were 8 digits, but all new TFNs issued to individuals are 9 digits.

---

Q: Does my TFN expire?

No. Your TFN never expires. It’s yours for life, regardless of how long you stay in Australia, whether you change jobs, get married and change your name, change your visa status, or even if you leave Australia and return decades later. You will always have the same TFN.

---

Q: Can I get a new TFN if I lose mine?

No. The ATO will not issue you a new TFN. You can only have one TFN in your lifetime. If you’ve lost or forgotten your number, you need to retrieve it using myGov, by checking old documents, or by calling the ATO. See our section on how to find your lost TFN for detailed instructions.

---

Q: Is it illegal to not have a TFN?

No, it’s not illegal. Having a TFN is not mandatory by law. However, without one, you’ll face significant financial consequences – you’ll be taxed at the maximum rate of 47% on all income, bank interest, and superannuation contributions. For most people, this makes it impractical not to have a TFN, even though it’s technically optional.

---

Q: How much does it cost to get a TFN?

Getting a TFN is completely free. The Australian Taxation Office does not charge any fee to apply for a TFN. If anyone asks you to pay money to apply for a TFN, they are scamming you. Report them to the ATO immediately.

---

Q: Can someone else apply for a TFN on my behalf?

Generally, no. You must apply for your own TFN. The exceptions are:

• Parents or guardians can apply for children under 18
• Legal guardians can apply for people who cannot manage their own affairs due to disability
• Registered tax agents can assist with the application process, but you still need to provide your own information and identity documents

Your employer, friends, or education agent cannot apply for a TFN on your behalf.

---

Eligibility and Requirements

Q: Can I apply for a TFN before coming to Australia?

No. You must be physically in Australia when you apply for a TFN. The ATO verifies your location and visa status with the Department of Home Affairs, and applications from outside Australia are automatically rejected. You need to wait until you’ve actually arrived in the country before applying.

---

Q: Can tourists get a TFN?

No. Tourist visas do not include work rights, so tourists are not eligible to apply for a TFN. You need to have a visa that permits you to work in Australia, such as a student visa, working holiday visa, permanent resident visa, or temporary work visa.

---

Q: I’m on a working holiday visa. Can I get a TFN?

Yes. Working holiday visa holders (subclass 417 and 462) can apply for a TFN. In fact, you should apply as soon as you arrive in Australia since you’ll likely want to start working right away. Use the online application method for foreign passport holders on the ATO website.

---

Q: Can international students get a TFN?

Yes. International students on a student visa (subclass 500) with work rights can apply for a TFN. Most student visas automatically include permission to work up to 48 hours per fortnight during semester. You must be in Australia when you apply, but your course doesn’t need to have started yet. Learn more about work rights for international students.

---

Q: Do I need to be 18 to get a TFN?

No. There’s no minimum age to have a TFN. Parents can apply for TFNs for newborn babies if needed. However, to use the new Digital ID fast-track application method, you must be at least 15 years old. Children under 15 need to use traditional application methods.

---

Q: Can permanent residents get a TFN?

Yes. Australian permanent residents are eligible to apply for a TFN at any age. The application process is the same as for Australian citizens, though you may not be able to use the Digital ID fast-track method depending on your identity documents.

---

Q: What documents do I need to apply for a TFN?

This depends on your residency status:

Australian citizens: Passport, birth certificate, or citizenship certificate plus one additional ID document

International students and visa holders: Valid foreign passport and Australian visa details (visa type, visa number, and visa grant notice)

For all applicants: An Australian postal address where you can receive mail

For detailed document requirements, see our documents section.

---

Q: Do I need a myGov account to apply for a TFN?

No, you don’t need myGov to apply for a TFN initially. However, having a myGov account linked to the ATO is very useful after you get your TFN because it lets you view your tax information, lodge tax returns, and find your TFN if you forget it later. If you apply using the new Digital ID method, your myGov account will automatically be linked to the ATO as part of the process.

---

Application Process

Q: How long does it take to get a TFN?

Standard processing time is up to 28 days from when the ATO receives your complete application. However:

• Digital ID applications (for Australian citizens 15+) can be instant to a few days
• Australia Post applications take 28 days from document verification
• Paper applications often take the full 28 days or slightly longer

During busy periods (like January-March when many students arrive), applications may take the full 28 days. For more details, see our section on TFN processing times.

---

Q: What’s the fastest way to get a TFN?

For Australian citizens aged 15 and over, the Digital ID application method is by far the fastest. Many people receive their TFN within hours or days. For international students and visa holders, the online application through Australia Post is the most efficient method, taking the standard 28 days. There’s no way to expedite the process or pay for faster service – all applications are processed in the order received.

---

Q: Can I track my TFN application online?

Unfortunately, there’s no real-time tracking system for TFN applications. After you apply, you’ll receive a reference number – keep this safe. If you haven’t received your TFN after 28 days, call the ATO on 13 28 61 with your reference number to check the status. Calling before the 28-day period won’t speed up your application.

---

Q: I submitted my application 2 weeks ago. Can I apply again to speed it up?

No, definitely not. Submitting multiple applications actually slows down the process because the ATO has to manually sort out which application is the real one and which should be ignored. Wait the full 28 days before taking any action. Only contact the ATO if you haven’t received your TFN after 28 days.

---

Q: Where is my TFN sent?

Your TFN is sent to:

• myGov Inbox if you applied using Digital ID
• Postal mail to the address you provided on your application for all other methods

The ATO will never send your TFN by email, SMS, or phone call. Anyone claiming to send you a TFN through these channels is a scammer.

---

Q: What is Digital ID and should I use it?

Digital ID is Australia’s new secure digital identity system that came into full effect in 2024. If you’re an Australian citizen aged 15 or over, you should absolutely use it – it’s the fastest way to get a TFN and offers the strongest security. You’ll need a smartphone, Australian passport, and one other identity document. International students and visa holders cannot currently use Digital ID for TFN applications. For more information, see our section on the 2026 Digital ID update.

---

Q: Can I apply for a TFN at Australia Post?

Yes, this is one of the main application methods. You complete an online form first, then visit a participating Australia Post outlet within 30 days with your original identity documents. The staff member verifies your documents and forwards your application to the ATO. This method is available to most applicants and is particularly good for international students. There’s no fee for this service at Australia Post.

---

Q: What happens if I make a mistake on my application?

If you realize you made a mistake after submitting your application, contact the ATO immediately on 13 28 61. Don’t submit a new application – this will only cause more delays. The ATO can update your information if you catch errors early. Common mistakes include typos in names, incorrect dates of birth, and temporary addresses. For tips on avoiding these errors, see our section on common TFN mistakes.

---

Working Without a TFN

Q: Can I work without a TFN?

Yes, you can start working without a TFN, but you’ll be taxed at the maximum rate of 47% on all your earnings. You have a 28-day grace period from your first day of work to provide your TFN to your employer. During this time, you should give your employer your TFN application reference number and complete a TFN declaration form. Once your TFN arrives, give it to your employer immediately so they can adjust your tax rate.

---

Q: What happens if I don’t give my TFN to my employer?

Your employer is legally required to withhold tax at 47% from all your wages if you don’t provide a TFN. This is nearly half your income disappearing before you receive it. For example, if you earn $1,000, you’ll only receive $530 after tax withholding. While you can eventually claim back overpaid tax when you lodge your tax return, this creates unnecessary hassle and ties up your money for months.

---

Q: How long do I have to give my TFN to my employer after starting work?

You have 28 days from your first day of work to provide your TFN to your employer. During this grace period, give your employer your TFN application reference number and complete a TFN declaration. Your employer will withhold tax at a temporary higher rate (typically around 45%) until you provide your actual TFN, at which point the rate adjusts.

---

Q: Can I claim back tax that was withheld before I got my TFN?

Yes. When you lodge your tax return at the end of the financial year (after June 30), you’ll report all your income and the tax that was withheld. The ATO will calculate what you actually owe based on your total income for the year. If too much tax was withheld (which is likely if you were taxed at 47% for weeks or months), you’ll receive a refund. However, you won’t get this money back until you lodge your return, which means it could be tied up for many months unnecessarily.

---

Using Your TFN

Q: When do I need to give someone my TFN?

You should only provide your TFN to:

1. The ATO – when lodging tax returns or contacting them about tax matters
2. Your employer – after you accept a job offer and are completing employment paperwork
3. Your bank – to avoid maximum tax rate on interest (optional but recommended)
4. Your superannuation fund – to avoid maximum tax rate on contributions (optional but recommended)
5. Your registered tax agent – if you’re using one to lodge your tax returns

Anyone else asking for your TFN is suspicious, and you should question why they need it. Learn more in our section on protecting your TFN from fraud.

---

Q: Should I give my TFN during job interviews?

No. Legitimate employers don’t need your TFN during the application or interview process. You should only provide your TFN after you’ve accepted a job offer and are completing official employment paperwork. If a recruiter or interviewer asks for your TFN before offering you a position, this is a red flag.

---

Q: Does my university need my TFN?

No. Your university or college does not need your TFN for enrollment, student services, or academic purposes. If someone at your institution asks for your TFN, question why they need it – it’s likely unnecessary.

---

Q: Can I use my TFN as identification?

No. A TFN is not a form of general identification and should not be used as ID. It’s specifically for tax and superannuation purposes only. Never show your TFN letter to businesses or write your TFN on forms that aren’t related to tax, employment, banking, or superannuation.

---

Q: Do I need to memorize my TFN?

It’s not required, but many people do memorize their TFN since you’ll use it throughout your life in Australia. If you do memorize it, still keep physical and digital copies stored safely as backup. Don’t rely solely on memory.

---

TFN for Specific Situations

Q: I’m on a student visa. When should I apply for a TFN?

Apply within your first week in Australia. You don’t need to wait for your course to start – you just need to be physically in Australia with your student visa. However, remember that you cannot legally work until your course has officially commenced, even if you have a TFN. For more student-specific information, see our section on TFN for international students.

---

Q: Can my partner/spouse use my TFN?

Absolutely not. Each person must have their own individual TFN. Sharing or using someone else’s TFN is a serious criminal offense that can result in heavy fines or even jail time. If your partner is in Australia on a dependent visa, they need to apply for their own separate TFN.

---

Q: I already have a TFN from a previous visit to Australia. Do I need a new one?

No. Your TFN never changes. If you were in Australia years ago on a different visa (like a working holiday visa) and now you’re returning on a student visa or permanent resident visa, you use the same TFN. It stays with you for life, regardless of visa changes. Just find your old TFN (check old documents or use myGov) and use that number with your new employer.

---

Q: I changed my name after getting married. Do I need a new TFN?

No. Your TFN stays the same even when you change your name. You do need to update your name with the ATO (through myGov or by calling 13 28 61), but your 9-digit TFN number remains identical. You’ll need to provide proof of name change, such as a marriage certificate or legal change of name certificate.

---

Q: I’m moving back to my home country. What happens to my TFN?

Your TFN remains active forever, even if you leave Australia permanently. If you return to Australia in the future (even decades later), you’ll use the same TFN. Before leaving, you should lodge your final tax return for any income earned in the financial year and consider claiming back your superannuation through the Departing Australia Superannuation Payment (DASP) scheme. Learn more about claiming back super when you leave Australia.

---

Q: Can I have multiple TFNs?

No. Each person can only have one TFN. If you somehow end up with two TFN numbers (which is very rare and usually happens due to administrative errors), contact the ATO immediately to have them merged. Using multiple TFNs is illegal and can be considered tax fraud.

---

Q: What’s the difference between TFN and ABN?

A TFN (Tax File Number) is for individuals and used for personal tax purposes. An ABN (Australian Business Number) is for businesses, contractors, and sole traders. Many people need both – for example, if you work as an employee, you need a TFN. If you also run a side business or work as a contractor, you need an ABN as well. You must have a TFN before you can apply for an ABN. For a detailed comparison, see our section on TFN vs ABN or our dedicated guide on TFN vs ABN for students.

---

Lost or Stolen TFN

Q: I lost my TFN letter. What should I do?

Don’t panic – losing the physical letter doesn’t cancel your TFN. You can find your TFN number by:

1. Signing into myGov and linking to the ATO (fastest method)
2. Checking old payslips, tax returns, or super statements
3. Calling the ATO on 13 28 61 (they’ll verify your identity first)
4. Contacting your registered tax agent if you use one

See our detailed section on finding your lost TFN for step-by-step instructions.

---

Q: Someone stole my TFN. What should I do?

If you believe your TFN has been stolen or compromised, act immediately:

1. Call the ATO Client Identity Support Centre on 1800 467 033 (Monday-Friday, 8am-6pm)
2. The ATO will place security monitoring on your account
3. Change all your passwords (myGov, email, banking)
4. Check your bank accounts for unauthorized transactions
5. Monitor your tax records for fraudulent activity
6. Consider placing a freeze on your credit file

Important: The ATO will not issue you a new TFN even if yours is stolen. Instead, they add permanent security measures to your account. For comprehensive advice, see our section on protecting your TFN from fraud.

---

Q: Can I get a new TFN if mine has been compromised?

No. The ATO does not issue replacement TFNs under any circumstances. If your TFN is compromised, the ATO will place enhanced security measures on your existing TFN to protect you from fraud. These measures stay in place permanently, and you’ll need to verify your identity through additional checks for all future tax-related transactions.

---

Q: I forgot my TFN and can’t find it anywhere. What do I do?

If you’ve tried checking myGov, old documents, and still can’t find your TFN, call the ATO on 13 28 61. They’ll ask you identity verification questions (about previous addresses, employers, or tax information) and then provide your TFN over the phone. Have a pen ready to write it down.

---

Tax and Superannuation

Q: Do I need a TFN to open a bank account?

No, a TFN is not required to open a bank account in Australia. However, it’s highly recommended. Without providing your TFN to your bank, any interest your account earns will be taxed at 47% instead of your normal tax rate (which could be 0% if you earn under $18,200 per year). For most people, it makes sense to provide your TFN to avoid losing nearly half your interest earnings. Learn more in our guide on opening a bank account in Australia.

---

Q: Do I need a TFN for superannuation?

Technically no, but you absolutely should provide your TFN to your super fund. Without your TFN:

• Your employer’s super contributions are taxed at 47% instead of 15%
• You cannot make personal after-tax contributions
• You cannot receive government co-contributions (up to $500/year for eligible low-income earners)
• You won’t receive the Low Income Superannuation Tax Offset

This difference adds up to thousands of dollars over time. For international students planning to claim back super when leaving Australia, providing your TFN maximizes the amount you can recover. Read more about superannuation for international students.

---

Q: How does my TFN relate to my tax return?

Your TFN is essential for lodging tax returns. At the end of each financial year (June 30), if you’ve earned income in Australia, you need to lodge a tax return using your TFN. The ATO uses your TFN to match the income reported by your employers, banks, and super funds with the information you provide on your return. This is how they verify your tax information and calculate whether you owe money or are owed a refund. For step-by-step guidance, see our article on lodging your first tax return in Australia.

---

Q: What tax rate will I pay with a TFN?

With a TFN, you’ll be taxed based on your actual income level:

As an Australian tax resident:

• $0 to $18,200: 0% (tax-free threshold)
• $18,201 to $45,000: 19% on amount over $18,200
• $45,001 to $135,000: 30% on amount over $45,000
• Plus Medicare levy of 2%

As a non-resident for tax purposes:

• $0 to $135,000: 30% on every dollar (no tax-free threshold)

Most international students become tax residents after 6 months in Australia. Without a TFN, everyone pays 47% regardless of income level. Learn more about tax rates in Australia.

---

Q: Can I claim the tax-free threshold if I’m on a student visa?

Yes, if you’re an Australian resident for tax purposes (which most international students are after 6 months in the country). When you complete your TFN declaration for your employer, answer “yes” to the question about claiming the tax-free threshold. This means you won’t pay tax on the first $18,200 you earn in a year. However, only claim this with ONE employer if you have multiple jobs. Read our guide on resident vs non-resident tax for more details.

---

Technical and System Questions

Q: What if the ATO website says my details can’t be verified?

This usually happens when:

• Your name is spelled differently across documents (passport vs visa)
• Your date of birth is in a different format than expected
• Your visa details don’t match what the Department of Home Affairs has on record
• There’s a technical issue with the verification system

Try these solutions:

1. Double-check all details match your official documents exactly
2. Wait 24 hours and try again (sometimes there’s a delay in visa information updating)
3. If problems persist, call the ATO on 13 28 61 for assistance

---

Q: Can I use a VPN when applying for my TFN online?

While technically possible, it’s not recommended. The ATO’s systems check your location to verify you’re actually in Australia (a key eligibility requirement). Using a VPN might trigger security flags or cause your application to be rejected. Apply using your regular Australian internet connection – either through your Australian mobile data or Australian wifi.

---

Q: My myGov account is locked. Can I still get my TFN?

Yes. If you’re applying for the first time, you don’t need myGov access to apply for a TFN – use the Australia Post method instead. If you’ve already applied and are trying to check your TFN, call the ATO on 13 28 61 to retrieve your TFN and to get help unlocking your myGov account.

---

Q: What’s a “Strong identity strength” for Digital ID?

Strong identity strength is the highest verification level in Australia’s Digital ID system. To achieve it, you need to verify your Australian passport (which contains a security chip), add at least one additional identity document, and complete face verification using a selfie matched to your passport photo. Only people with Strong identity strength can use the fast-track TFN application. This applies to Australian citizens aged 15 and over.

---

Q: The myID app isn’t working. What should I do?

If you’re having technical issues with the myID app:

1. Make sure your phone’s operating system is up to date
2. Check you have a stable internet connection
3. Try closing and reopening the app
4. If scanning your passport isn’t working, ensure your passport is current and undamaged
5. Contact myID support through the app’s help section

If you can’t resolve the issue, use the traditional Australia Post application method instead – it’s just as legitimate, just not as fast.

---

Q: Why does the ATO need access to my passport chip?

The security chip in modern Australian passports contains encrypted biometric data that’s very difficult to fake. When the myID app reads your passport chip using NFC (Near Field Communication), it verifies that your passport is genuine and matches the person applying for the TFN. This high level of security is why Digital ID applications can be processed so quickly – the ATO has very high confidence in your identity.

---

International and Special Circumstances

Q: I’m on a bridging visa. Can I get a TFN?

It depends on whether your bridging visa includes work rights. Check your bridging visa conditions on VEVO (Visa Entitlement Verification Online). If your bridging visa says “Work permitted,” you can apply for a TFN. If it says “No work permitted,” you cannot apply. Learn more about bridging visas for students.

---

Q: I’m a refugee or asylum seeker. Can I get a TFN?

Yes. If you’re in Australia and have been granted a visa that includes work rights (such as a temporary protection visa or safe haven enterprise visa), you can apply for a TFN. The application process is the same as for other visa holders. You’ll need your passport or travel document and visa details.

---

Q: I’m here on a dependent visa. Can I get my own TFN?

Yes. Every person needs their own individual TFN – there’s no such thing as a joint or family TFN. If you’re in Australia as a dependent on someone else’s visa and your visa includes work rights, you can and should apply for your own TFN using your own name and details.

---

Q: My passport is about to expire. Should I renew it before applying for a TFN?

Yes, it’s better to renew your passport first if it’s within a few months of expiring. The ATO requires current, valid identity documents. While your TFN itself never expires, applying with an expired passport may cause delays or rejection of your application.

---

Q: Can I apply for a TFN if I’m in Australia on a short-term work assignment?

Yes, if your visa includes work rights. Temporary work visa holders (like TSS visa subclass 482 holders) are eligible for TFNs. You’ll need your passport and visa details to apply.

---

Q: I’m an overseas resident. Can I get a TFN?

Yes, but the process is different. If you’re living overseas but earning income from Australian sources (like rental income from Australian property or investment income), you can apply for a TFN. However, you cannot use the standard online applications. Instead, you need to complete a paper application and mail it to the ATO with certified copies of your identity documents. Check the ATO website for the specific form and instructions for overseas residents.

---

Common Concerns and Myths

Q: Will getting a TFN affect my visa status?

No. Getting a TFN does not affect your visa in any way. It’s simply a tax identification number. However, working without proper work rights on your visa (or working beyond your allowed hours) is what can affect your visa, regardless of whether you have a TFN. Make sure you understand your visa work conditions before taking employment.

---

Q: I heard TFNs are being replaced by Digital ID. Is that true?

No, this is a misunderstanding. Digital ID is a new way to verify your identity when accessing government services, including when applying for a TFN. It makes the application process faster and more secure. However, TFNs themselves are not being replaced – you’ll still have a 9-digit TFN that you use for tax purposes. Digital ID is just a better way to prove who you are when interacting with government services.

---

Q: Can the government track everything I do with my TFN?

Your TFN is specifically used to track tax-related information: income from employment, bank interest, superannuation contributions, and government benefits. The ATO can see this information to verify your tax returns are accurate. However, your TFN cannot be used to track your location, purchases, social media activity, or other aspects of your life. Australian law strictly limits how TFNs can be used to protect privacy.

---

Q: Do I need a TFN if I’m only doing volunteer work?

No. Volunteer work is unpaid, so you don’t need a TFN. However, if you receive any form of compensation for volunteering (like reimbursement that exceeds your actual expenses, or an honorarium payment), that income may be taxable and you would need a TFN.

---

Q: Someone told me I can buy a TFN faster. Is this legitimate?

No, this is absolutely a scam. TFNs are free and can only be issued by the Australian Taxation Office. Anyone offering to “sell” you a TFN, expedite your application for a fee, or provide a TFN faster than the official process is committing fraud. Report them to the ATO immediately. There is no legitimate way to speed up TFN processing beyond using the Digital ID method if you’re eligible.

---

Q: I saw a job ad that requires a TFN to apply. Should I provide it?

No, this is a red flag. Legitimate job applications never require your TFN upfront. You only provide your TFN after you’ve been offered a job and are completing employment paperwork. Job ads requesting TFNs in applications are either from scammers trying to steal personal information or from employers who don’t understand proper procedures. In either case, don’t provide your TFN at the application stage.

---

Q: Do I need a TFN to rent an apartment?

No. Landlords and real estate agents do not need your TFN to rent you an apartment. If a landlord asks for your TFN, this is inappropriate and you should question why they need it. They may be confusing TFN with other forms of identification, or they may be attempting to collect information they don’t need. Never provide your TFN in rental applications.

---

Q: Will I be deported if I work without a TFN?

No. Working without a TFN is not a deportable offense. However, you’ll be taxed at 47% on your income, which is a significant financial penalty. What CAN lead to visa cancellation is working without proper visa work rights, or working more hours than your visa allows (such as international students working over 48 hours per fortnight). Make sure you understand your visa conditions, not just your TFN status.

---

This FAQ section covers the most common questions about Tax File Numbers in Australia. If your question wasn’t answered here, you can contact the ATO directly on 13 28 61 or visit www.ato.gov.au for more information. For broader guidance on working, studying, and living in Australia, explore our other guides on New Life in Aus.