Australian Tax Return — How to Lodge, Deadlines, Checklists and Guides

Every Australian with taxable income above the tax-free threshold needs to lodge a tax return each year with the ATO. For most people, this means using myTax through myGov — the ATO’s online lodgement system. For others, a registered tax agent makes the process simpler and can extend your deadline to May the following year.

This cluster covers everything about lodging your Australian tax return: the deadline, what information you need, how the myTax process works step by step, and specific guides for students, retirees, sole traders, and occupation-specific situations.

How to Lodge

• How to Lodge a Tax Return in Australia — The complete guide: myTax walkthrough, pre-fill, income sources, deductions, and submitting
• myTax Step-by-Step Guide — A screen-by-screen walkthrough of lodging via the ATO’s myTax online tool
• Tax Agent vs myTax — Which Should You Use? — When doing it yourself is fine and when a tax agent pays for itself
• How to Do Your First Ever Tax Return — Everything a first-time lodger needs to know

Deadlines and Timing

• Tax Return Deadline Australia 2025–26 — The 31 October individual deadline, the tax agent extension to May, and what happens if you miss it
• What Happens If You Don’t Lodge a Tax Return? — ATO late lodgement penalties, Failure to Lodge (FTL) notices, and how to catch up
• How Long Does a Tax Refund Take? — ATO processing times for myTax and paper returns, and how to track your refund status

Preparation

• Tax Return Checklist — What You Need — Payment summaries, bank interest, dividend statements, receipts, and rental property records
• ATO Online Services — myGov Account Guide — How to set up myGov, link the ATO, and access your pre-fill data
• ATO Audit Triggers — What Sets Off a Review — The patterns and claims that are most likely to attract ATO scrutiny

After You Lodge

• How Tax Refunds Work in Australia — Why some people get refunds and others have a tax bill, and how the reconciliation works
• Why Is My Tax Refund Smaller This Year? — The most common reasons: LMITO ended, income increased, fewer deductions
• How to Amend a Tax Return — The process for correcting mistakes after lodgement via myTax or an amendment form

Returns for Specific Situations

• Tax Return for Students Australia — Part-time work, the tax-free threshold, study allowances, and HECS-HELP
• Tax Return for Retirees — Super pension income, the SAPTO offset, shares, and term deposit interest
• Tax Return for Sole Traders and Self-Employed — Business income, deductions, depreciation, and the business schedule
• Tax Return for Nurses Australia — Uniform, registration fees, CPD, and work-related deductions specific to nursing
• Tax Return for Teachers Australia — Classroom supplies, professional development, union fees, and home office
• Tax Return for Tradies Australia — Tools, vehicle, protective gear, and site-related deductions
• Tax Return for Working Holiday Makers — The 15% flat rate, the WHM employer declaration, and how to claim a refund

What to Have Ready Before You Lodge

Lodging your Australian tax return goes smoothly if you have the right information gathered in advance. Many items are pre-filled in myTax from employer and bank data — but you should always verify the pre-fill is complete and accurate.

Income information:

• Payment summary or income statement from each employer (available in myTax pre-fill)
• Interest income from bank accounts (pre-filled from bank data)
• Dividend and distribution statements (pre-filled from ASX-listed shares)
• Government payments (pre-filled from Services Australia)
• Rental income total and details of all rental expenses for the year
• Capital gains or losses (disposals of shares, property, or crypto during the year)
• Any foreign income received (employment, investments, pension)

Deductions:

• Receipts or records for all work-related expense claims
• Logbook (if claiming car expenses using the logbook method)
• Income protection insurance policy confirmation (if claiming premiums)
• Charitable donation receipts from DGR-registered organisations
• Self-education expense records (if study is directly connected to current income-earning work)
• Home office records — hours worked from home and related expenses

Personal details:

• Tax File Number (TFN)
• Bank account BSB and account number for refund payments
• HECS-HELP debt status (to declare the debt so correct withholding is applied)
• Private health insurance statement from your insurer

Common Mistakes to Avoid

Over-claiming: The ATO’s data-matching capability catches many false claims. Expenses must be:

• Work-related (directly linked to earning your income)
• Not reimbursed by your employer
• Supported by records (receipts, bank statements, logbook)

Specific problem areas:

• Claiming 100% of phone and internet costs (only the work proportion)
• Claiming clothing that is not a uniform or protective clothing
• Claiming meals and entertainment (almost never deductible for employees)
• Claiming gym memberships (not deductible for most occupations)
• Forgetting to include all income (bank interest, Airbnb income, crypto sales)
• Forgetting to declare capital gains events

The ATO’s pre-fill: Use pre-fill as a starting point — it covers most income but may miss some dividends from unlisted trusts, small employers, or income from overseas. Always review and add any missing items.

Timing — When to Lodge

The standard deadline for self-lodgers is 31 October each year (for the previous financial year ending 30 June). Tax agent lodgements have extended deadlines — typically to 15 May the following year.

There is no financial benefit to lodging early if you owe the ATO money — you don’t need to pay until the due date on your notice of assessment. However, if you expect a refund, lodging early means receiving the refund sooner. Refunds are typically issued within 2–3 weeks of lodgement.

If you are in a debt situation (expect to owe tax), you may prefer to use a tax agent and benefit from their extended deadline — giving you more time before payment is due.

Tax Agents — When They Pay for Themselves

Tax agents typically charge $100–$400 for a standard individual tax return. They pay for themselves when:

• You have complex affairs (rental property, business income, capital gains events)
• You have multiple income sources or an overseas tax issue
• You want the extended lodgement deadline
• You believe you are entitled to deductions the ATO’s pre-fill doesn’t cover
• You’ve received a notice of amendment or ATO audit notice

Tax agent fees are themselves tax deductible in the year they are paid (i.e., you claim this year’s tax agent fee in next year’s return).

Frequently Asked Questions

What is the tax-free threshold in Australia?

The tax-free threshold for Australian residents is $18,200/year. You pay no income tax on earnings up to this amount. The ATO’s PAYG system automatically accounts for the threshold when you indicate you are claiming it on your tax file number declaration form with your employer.

How long should I keep tax records?

The ATO requires you to keep records supporting your tax return for five years from the date you lodged the return. For capital gains assets (property, shares), records must be kept for five years after you dispose of the asset — even if you held it for many years. Digital copies are acceptable.

What happens if I miss the tax return deadline?

The ATO may apply a failure to lodge (FTL) penalty: $313 for every 28-day period the return is outstanding (up to $1,565 maximum for individuals). The ATO can also estimate your tax liability and issue an assessment. If you cannot lodge by 31 October, contact the ATO or engage a tax agent — registered agents can access extended deadlines.

Common Mistakes When Lodging Your Tax Return

The ATO’s data-matching capability catches mistakes and omissions that were undetectable in previous decades. Common errors that attract ATO attention:

Forgetting pre-filled income: myTax pre-fills wages, interest, dividends, and government payments — but not always all income sources. Investment income from platforms not integrated with the ATO must be entered manually.

Claiming the wrong home office rate: Using the revised fixed rate (67 cents/hour from 1 July 2022) requires a record of hours worked from home — a timesheet, roster, or diary. The previous shortcut method (80 cents/hour) no longer exists.

Claiming 100% of phone or internet: Very few people use their phone or internet exclusively for work. The ATO expects you to apportion based on actual work use — typically 30–60% for most employees.

Claiming commuting as a travel deduction: The cost of travelling between home and your regular place of work is not deductible. Work-related travel deductions are for travel between work sites, visiting clients, or carrying equipment required for the job.

Not declaring bank interest: The ATO receives interest data directly from banks. Even small amounts of interest income (a few dollars from an online account) are pre-filled and expected in your return.

Missing the deadline: Individuals lodging their own return must do so by 31 October. If you use a registered tax agent, they may have an extension — but you must be registered with them before 31 October to access the extension.

This section provides general tax information. For advice tailored to your situation, speak with a registered tax agent. Find one through the Tax Practitioners Board register.