If you’re living or working in Australia, chances are you’ve heard about a Tax File Number—or TFN for short. But what exactly is it? Why do you need one? And how do you get it?
Let’s break it down in simple, everyday language so you can understand it without getting lost in financial jargon.
What is a Tax File Number (TFN)?
A Tax File Number (TFN) is a unique, 9-digit number issued to you by the Australian Taxation Office (ATO). Think of it like your tax identity in Australia. It helps the government keep track of your income, tax payments, and superannuation.
Without a TFN, your employer may take more tax out of your pay than necessary. Plus, you won’t be able to:
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Lodge your tax return easily
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Apply for government benefits
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Open a bank account
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Enrol in higher education with HECS-HELP
Why Do You Need a TFN?
Let’s say you just got your first job. You’re pumped and ready to earn your first paycheck. But your employer asks for your TFN, and you shrug. “Do I really need it?”
Here’s the thing: without it, you could be taxed at the highest marginal rate—that’s up to 47% of your income. That’s almost half your pay gone!
Imagine earning $1,000 and only seeing $530 hit your bank account. Not fun, right? That’s why getting a TFN is one of the first things every Aussie (or new resident) should do when they start working or studying.
Who Needs a TFN?
You’ll need a Tax File Number if you:
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Are starting a job
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Want to lodge a tax return
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Are applying for Centrelink benefits
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Are a student with a HELP/HECS loan
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Want to open a bank account in Australia
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Plan to run your own business
How to Apply for a Tax File Number: Step-by-Step
Let’s make it simple. Here’s how you can apply for your TFN depending on your situation:
For Australian Citizens & Permanent Residents
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Go to the official ATO TFN Application page.
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Choose the online application option via myGov.
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Log in or create a myGov account and link it to the ATO.
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Fill in your personal details and submit the form.
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Your TFN will be sent to your mailing address within 28 days.
For Temporary Visitors or Foreign Residents
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Visit the ATO’s TFN application portal.
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If eligible, apply online through the Department of Home Affairs (this happens automatically in many visa applications).
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Otherwise, fill out the paper form and post it to the ATO.
Tip: Keep your TFN safe. It’s like your tax password—don’t share it unless necessary.
A Personal Story That Might Sound Familiar
Let me tell you about Ravi, a student from India who came to Melbourne to study IT. He was excited and ready to work part-time. He got a job offer at a local café, but when they asked for his TFN, he had no idea what it was.
He ended up giving them no TFN—and guess what? They taxed him 45% of his weekly pay!
Once he figured it out, he applied through the ATO website and received his TFN in the mail. From the next paycheck on, his tax rate was normal. He even got a nice refund at tax time.
✅ Tips to Remember About Your TFN
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Never share it with anyone you don’t trust. Only give it to employers, banks, or government agencies.
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Keep a record in a safe place. If you lose it, you can request it again via the ATO.
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You only need one TFN for life, even if you change jobs or move cities.
Need Help with Your Tax or TFN?
Here’s where it gets even better.
If you’re feeling overwhelmed or unsure, you don’t have to go it alone. That’s where Perfect Accounting comes in.
Why Choose Perfect Accounting?
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Experienced registered tax agents
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Help with TFN, ABN, tax returns, BAS, and more
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Specialised support for international students, small businesses, and individuals
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Affordable and transparent pricing
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Local experts who understand Australian tax rules inside out
Whether you’re applying for a TFN or preparing to file your first tax return, Perfect Accounting can guide you every step of the way. They’ll make sure you get the most from your tax refund—without the stress.
Book your free consultation now at PerfectAccounting.com.au and let the pros handle it for you.
FAQ’S
What are the requirements of TFN?
You can apply for a TFN if you meet all the following 3 conditions: You are a foreign passport holder, permanent migrant or temporary visitor. You are already in Australia. a visa allowing you to stay in Australia indefinitely.
Can you apply for a TFN outside Australia?
If you are a foreign resident for tax purposes, to apply for a TFN you will need to complete a paper form. Download and complete: Tax file number – application or enquiry for individuals living outside Australia. If you can't download the form, order it either online or by phoning 1300 720 092
Does it cost money to get a tax file number in Australia?
Applying for a tax file number (TFN) is free. Australian residents can apply at Australia Post by completing the online form.
What is the TFN rule in Australia?
The TFN Rule only applies to the TFN information of individuals and does not apply to TFN information about other legal entities such as corporations, partnerships, superannuation funds and trusts. The TFN Rule is legally binding. A breach of the TFN Rule is an interference with privacy under the Privacy Act.
Final Thoughts
Getting your Tax File Number is more than just ticking a box—it’s a smart financial move that puts you in control of your money. Whether you’re a local, a student, or new to Australia, applying for a TFN early saves you from unnecessary tax and opens up financial doors.
And remember, if you ever feel stuck, Perfect Accounting has your back. They’ll handle the nitty-gritty while you focus on what really matters—living your best Aussie life.
✅ Key Takeaways
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A Tax File Number is your unique tax identity in Australia.
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You need it for jobs, tax returns, bank accounts, and government benefits.
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Don’t share it with anyone unless necessary.
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Get professional help from Perfect Accounting to save time and money.
