If you’re living, working, or studying in Australia, chances are you’ve come across the term Tax File Number (TFN). And if you haven’t sorted yours out yet, don’t worry — you’re not alone.
When I moved to Sydney for my first job, I had no clue what a TFN even was. My manager handed me a stack of paperwork, and right at the top was this box: “Enter your Tax File Number.” I remember thinking, “Do I really need one of these things?” The short answer is: Yes, absolutely.
Let’s break it all down — in plain English — so you understand what a Tax File Number is, why it matters, and how to get one easily.
What is a Tax File Number (TFN)?
Your Tax File Number is a unique 9-digit number issued by the Australian Taxation Office (ATO). It’s like your ID for all things tax-related in Australia. Whether you’re working a job, running a business, studying, or even receiving government benefits — your TFN is essential.
Think of it as your tax passport. Without it, you’re pretty much flying blind in Australia’s tax system.
Why is a TFN So Important?
Here’s the deal — not having a TFN can seriously mess with your money. If you don’t provide a TFN to your employer:
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You’ll be taxed at the highest rate (currently 47%)
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You might miss out on superannuation and other benefits
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It could delay your tax return or refund
And trust me, no one wants to lose hundreds (or even thousands) of dollars just because they skipped one step.
Who Needs a TFN?
You need a TFN if you are:
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An Australian citizen or permanent resident starting work
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An overseas student with the right to work in Australia
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A backpacker or traveler with a working holiday visa
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A sole trader or business owner
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Planning to lodge a tax return
Basically, if you plan to earn money in Australia — you need a TFN.
How to Apply for a Tax File Number – Step-by-Step
Applying for a TFN is surprisingly easy. Here’s a simple step-by-step guide:
Step 1: Check your eligibility
Make sure you’re eligible to apply:
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If you’re an Aussie citizen, you’re good to go.
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If you’re a temporary visitor, you can still apply online with a valid visa.
Step 2: Apply online via the ATO
Head to the official ATO TFN application page and follow the prompts. If you’re an Aussie citizen, you’ll be redirected to myGov.
If you’re on a visa, you’ll apply directly through the ATO website.
Step 3: Verify your identity
Depending on your situation, you may need to show ID:
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Passport
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Australian birth certificate
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Driver’s license
If you’re applying at Australia Post, make sure to bring your documents in person.
Step 4: Wait for your TFN
It usually takes around 10 to 28 days for your TFN to arrive — either by post or via your myGov account.
Can I Start Work Without a TFN?
Yes — but only temporarily. You can start working before your TFN arrives, but you’ll need to tell your employer that you’ve applied. If you don’t give them your TFN within 28 days, they’ll start taxing you at the maximum rate. Not fun.
Lost Your TFN? Here’s What To Do
If you lose your TFN, don’t panic. You can:
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Log in to myGov and check under ATO services
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Look on old tax returns, payment summaries, or super statements
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Call the ATO directly for help
Pro Tip: Let the Experts Handle It
Sure, applying for a TFN is simple for most people. But when you’re juggling work, study, or moving to a new country — it’s easy to make mistakes. And when it comes to taxes, mistakes cost money.
That’s where Perfect Accounting steps in. We’re not just accountants — we’re your partners in navigating Australia’s financial system with ease. Whether you’re a student, a business owner, or someone just trying to understand their tax return, we’ve got your back.
Why Choose Perfect Accounting?
✅ Hassle-free TFN application support
✅ Expert advice for students, businesses, and migrants
✅ Help with tax returns, superannuation, and BAS
✅ Affordable packages, real people, and no jargon
“I was drowning in paperwork and tax confusion. Perfect Accounting made it so easy — they even helped me get my TFN sorted in a day!”
— Sarah T., International Student in Melbourne
Final Thoughts
Getting your Tax File Number is one of the smartest moves you can make when living or working in Australia. It’s quick, free, and saves you money in the long run. Don’t wait until tax season to figure things out.
If you’re feeling overwhelmed or just want to make sure everything’s done right, let the pros at Perfect Accounting help you out.
Because when it comes to money and taxes — getting it right the first time makes all the difference.
How do I get a tax ID number in Australia?
A TFN is issued under the Income Tax Assessment Act 1936 (ITAA 1936) upon application by the client or as required by the ATO for internal purposes. Applying for a TFN can be completed online or via paper channels and will be issued once sufficient proof of identity has been provided.
How do I get an Australian TFN?
- Australian residents can apply at Australia Post by completing the online form. ...
- A sample of the Tax file number – application or enquiry for individuals (NAT 1432, PDF 288KB)This link will download a file is also available online to help with completing this form.
Can a foreigner get a tax file number in Australia?
Foreign passport holders, permanent migrants and temporary visitors can apply for a tax file number (TFN) online. To be eligible to use this service to apply for a TFN, you must be in Australia and have a valid: Permanent migrant visa. Visa with working rights.
How do I verify my tax file number in Australia?
Log on to your myGov account at www.my.gov.au. Click on the link to the ATO. Click on 'My profile' and then 'Personal details'. This page will show your TFN, name, date of birth and address currently held by the ATO.