Your first tax return in Australia: TFN, tax residency and why the notice of assessment is 'gold-standard evidence'

You’ve just arrived in Australia, you’re working your first months, and someone reminds you: “Got your TFN yet? Don’t forget to lodge in July.” If you’re nodding it away because “tax can wait”, this article is for you — because in Australia, your tax record is not just a financial obligation. It is one of the most important evidence sets for your future visa pathway.

Three basics answered fast: the TFN (Tax File Number) is your personal tax number — apply online, free through the ATO (the Australian Taxation Office) as soon as you arrive; you can be a tax resident even on a temporary visa — and that usually works in your favour; the Australian financial year runs 1 July to 30 June, and you lodge from 1 July.

The TFN — a first-week task

The TFN stays with you for your entire working life in Australia. Three things to know:

• It’s free on the ATO website once you’ve entered Australia — any “service” charging a fee to get you a TFN is selling something that costs nothing;
• Working without giving your employer a TFN → your pay is taxed at the highest rate — recoverable at tax time, but why give an interest-free loan;
• The TFN is sensitive data: give it only to your employer after starting a job, your bank, the ATO, your super fund — never message it to “a contact helping with paperwork”.

Tax resident is not PR — don’t confuse the two

This is where newcomers get tangled: tax residency and migration permanent residency are two completely separate systems. A student on a long course, a 482 holder living and working steadily in Australia — these people are usually tax residents under the ATO’s definition, even though their visas are temporary.

Being a tax resident usually helps: you get the tax-free threshold (the first slice of income untaxed) and resident tax rates. A notable exception: Working Holiday Makers (417/462) have their own tax schedule — check the current rules if that’s you. Tax residency depends on individual circumstances — the ATO website has a self-check tool.

The Australian financial year and how to lodge

• The financial year: 1 July to 30 June. The current year ends 30 June 2026 — you lodge for it from 1 July 2026;
• Two ways to lodge: myTax (inside a myGov account linked to the ATO — free, fine for simple returns) or a registered tax agent (paid, worth it for complex affairs);
• Most salary data is reported straight to the ATO by employers (income statements) and pre-filled — your job is to check it and add what the system can’t see.

What to declare — and basic deductions

Income to declare includes:

• Wages from every employer (income statement/payslip);
• Bank interest — small, but the ATO sees it; forgetting it is the classic first-year mistake;
• Gig/self-employed income: Uber, food delivery, online selling — all taxable income.

On deductions: workers can claim certain costs directly tied to earning income, under the rules — the golden principle is real expense, work-related, with records. The specific rules per expense category are on the ATO website — don’t claim what “a mate said you can” (see the mistakes below).

Why your tax record matters for visas: the notice of assessment

After you lodge, the ATO issues your notice of assessment — the official document confirming that year’s income and tax. For anyone building a migration case, this is “gold-standard evidence” because it is independent government confirmation that you genuinely worked and the income genuinely existed:

• Subclass 191 (PR from the 491): you must show income at the required threshold for 3 years in a regional area — notices of assessment are the backbone of that evidence; see the 491-to-191 requirements;
• 482/186: proving your actual salary matches what the sponsorship paperwork claims;
• Citizenship: a clean tax history feeds the picture of contribution and compliance;
• JRE (Job Ready Employment) in a trade’s Job Ready Program: declared income proves the employment is real.

Seen from this angle, working for undeclared cash = burning your own future visa doors: no notice of assessment, no income evidence, nothing to fall back on when you need to prove 3 years of work. The full analysis is in cash-in-hand work in Australia — the real risks.

Common first-year mistakes

• Forgetting bank interest — the ATO data-matches with banks automatically;
• Copy-paste deductions — claiming whatever friends claim, without records → exposure to repayment plus penalties;
• “Tax services” promising unusually big refunds — an oversized refund usually means inflated deductions on a return that carries your name; when the ATO reviews it, the person liable is you, not the “service”. Choose a registered agent (searchable on the Tax Practitioners Board register);
• Assuming low income means no lodgement — depending on circumstances you may still need to lodge or submit a non-lodgment advice; check the ATO website.

Super: check it from your first payslip

When you work in Australia, your employer must pay superannuation for you — a percentage of your wage into a super fund in your name. Two things to do: check on myGov that the super is actually landing in the fund (payslips saying one thing while no money arrives is a real phenomenon), and remember: if you eventually leave Australia for good, this super can be claimed back through DASP — read ahead in claiming your super when leaving Australia.

Summary

In your first Australian year, get three things right: apply for your free TFN on arrival, work out your tax residency correctly, and lodge in full from 1 July — even on a modest income. Each year’s notice of assessment is a quiet brick in the road towards a 191, a 186 or citizenship. If you are mapping a PR pathway and want to know what your income record should look like over the next 2–3 years — book a free assessment with VisaAffairs.

References

• ATO — Tax file number — apply for a TFN free of charge.
• ATO — Your tax residency — self-check your tax residency status.
• ATO — Lodge your tax return — lodging via myTax or an agent.

This article is general information current at publication. Australian migration rules change regularly — check the date and contact VisaAffairs before relying on it for your own case. Book a consultation for advice on your specific circumstances.