New South Wales Income Tax Filing Laws (2026)
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Sourced from Commonwealth Acts of Parliament, federal regulations, and official government guidance. State-level information reflects each state's own Acts and court decisions. Written in plain language for general understanding — this is educational content, not legal advice. Our editorial standards
What is this right?
Every Australian resident who earns income lodges an income tax return with the ATO each financial year (1 July to 30 June). The rules sit in the Income Tax Assessment Act 1997.
The system is progressive. The first $18,200 is tax-free; after that, rates step up — 16% from $18,201 to $45,000, 30% from $45,001 to $135,000, 37% from $135,001 to $190,000, and 45% above $190,000 (rates effective from 1 July 2024 after the Stage 3 tax cuts). Most taxpayers also pay the 2% Medicare levy.
If you lodge yourself, the deadline is 31 October. Use a registered tax agent and you usually get an extension — often to 15 May the following year, depending on the agent's lodgement program. Late lodgement triggers a Failure to Lodge (FTL) penalty of up to $1,565 per 28-day period, which adds up faster than people expect.
Most employers now report income directly to the ATO through Single Touch Payroll (STP), so your income statement is pre-filled in myTax by the time you log in. The pre-fill makes simple returns genuinely simple.
When does it apply?
This applies to all Australian residents for tax purposes who earn above the tax-free threshold.
- You must lodge a return if your taxable income exceeds $18,200, or if you had tax withheld from payments and want a refund.
- Foreign residents are taxed from the first dollar with no tax-free threshold.
- Even if your income is below $18,200, you may need to lodge to claim a refund of withheld tax.
What to Do If You Are Late or Behind on Filing Your Australian Tax Return
- Lodge on time — by 31 October if self-lodging, or register with a tax agent before that date for an extension.
- Use myTax through your myGov account — most income and deduction information is pre-filled.
- Check your income statement is marked as 'Tax ready' before lodging.
- Keep records for 5 years from the date you lodge your return.
- Claim the tax-free threshold on your TFN declaration with your main employer.
- Report all income — wages, interest, dividends, rental income, and gig economy earnings.
What should you NOT do?
- Don't ignore lodgement deadlines — the ATO charges FTL penalties and may issue a default assessment.
- Don't leave out income — the ATO receives data from banks, employers, and share registries and will detect omissions.
- Don't claim the tax-free threshold with multiple employers — you can only claim it once. Doing so may result in a tax debt at year-end.
- Don't wait for your tax agent to contact you — make sure you are registered with them before 31 October.
How New South Wales differs from federal law
Income tax in Australia is a federal matter — there is no state income tax in NSW. However, NSW residents may interact with state-level taxes and levies that affect their overall tax position.
- NSW does not impose a state income tax. All personal income tax is assessed and collected by the Australian Taxation Office (ATO) under the Income Tax Assessment Acts 1936 and 1997.
- NSW workers may need to account for payroll tax indirectly — employers in NSW pay payroll tax on wages above $1.2 million per year (Payroll Tax Act 2007 (NSW)), which can affect salary structuring and business costs.
- NSW has unique state taxes that may affect tax planning: land tax, stamp duty (transfer duty), and various levies administered by Revenue NSW.
- NSW residents who own investment properties must declare rental income in their federal tax returns and can claim deductions for expenses including land tax paid to Revenue NSW.
Additional Steps in New South Wales
File your income tax return through myGov linked to the ATO or through a registered tax agent. For NSW state tax queries, contact Revenue NSW (1300 368 710 or revenue.nsw.gov.au).
Relevant Law: Income Tax Assessment Act 1997 (Cth); Payroll Tax Act 2007 (NSW); Land Tax Act 1956 (NSW); Taxation Administration Act 1996 (NSW)
Common Questions
What is the income tax filing right in Australia?
Every Australian resident who earns income lodges an income tax return with the ATO each financial year (1 July to 30 June). The rules sit in the Income Tax Assessment Act 1997.The system is progressive. The first $18,200 is tax-free; after that, rates step up — 16% from $18,201 to $45,000, 30% from $45,001 to $135,000, 37% from $135,001 to $190,000, and 45% above $190,000 (rates effective from 1 July 2024 after the Stage 3 tax cuts). Most taxpayers also pay the 2% Medicare levy.If you lodge yourself, the deadline is 31 October. Use a registered tax agent and you usually get an extension — oft...
When does income tax filing apply?
This applies to all Australian residents for tax purposes who earn above the tax-free threshold.You must lodge a return if your taxable income exceeds $18,200, or if you had tax withheld from payments and want a refund.Foreign residents are taxed from the first dollar with no tax-free threshold.Even if your income is below $18,200, you may need to lodge to claim a refund of withheld tax.
What should I do if I have missed the deadline for lodging my tax return in Australia?
Lodge on time — by 31 October if self-lodging, or register with a tax agent before that date for an extension.Use myTax through your myGov account — most income and deduction information is pre-filled.Check your income statement is marked as 'Tax ready' before lodging.Keep records for 5 years from the date you lodge your return.Claim the tax-free threshold on your TFN declaration with your main employer.Report all income — wages, interest, dividends, rental income, and gig economy earnings.
What mistakes should I avoid with income tax filing?
Don't ignore lodgement deadlines — the ATO charges FTL penalties and may issue a default assessment.Don't leave out income — the ATO receives data from banks, employers, and share registries and will detect omissions.Don't claim the tax-free threshold with multiple employers — you can only claim it once. Doing so may result in a tax debt at year-end.Don't wait for your tax agent to contact you — make sure you are registered with them before 31 October.
Income Tax Filing in other states
Same topic, different jurisdiction. Pick the one that applies to you.