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Your Simple Guide to Australian Tax Returns

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Your Simple Guide to Australian Tax Returns

Simple tax tips for Australian taxpayers – desk with calculator, documents, and laptop.

Tax time doesn’t have to be stressful. Whether you’re an employee with a straightforward income statement, an investor, or a small-business owner, your simple guide to Australian tax returns is here to explain how to complete your return accurately and claim what you’re entitled to.

This guide will walk you through everything you need to know to stay on the right side of the Australian Taxation Office (ATO). The goal is a stress-free lodgement and making sure you get back every dollar you deserve.

What Is a Tax Return in Australia?

A tax return is the annual report you lodge with the Australian Taxation Office (ATO) showing your income, deductions, and tax paid. Most Australians lodge between 1 July and 31 October each year using myTax or a registered tax agent to claim refunds or pay any shortfall.

It’s a formal declaration that pulls together all the income you’ve earned and the deductible expenses you’ve paid during the financial year, which runs from 1 July to 30 June. The ATO uses this information to determine whether you owe more tax or are due for a refund.

You must lodge a return even if your employer has already withheld Pay As You Go (PAYG) tax from your salary.

Who Needs to Lodge a Tax Return?

You generally need to lodge a tax return if you are an Australian resident for tax purposes and any of the following apply:

  • You earned income during the financial year from sources like employment, investments, or a business.
  • Your employer withheld tax from your pay (shown on your income statement or PAYG summary).
  • You want to claim work-related deductions or tax offsets to get a refund.
  • You earned above the tax-free threshold, which is currently $18,200.
  • You ran a business, even as a sole trader with a small side hustle.

Pro Tip: Even if you earned under the threshold, it is often worthwhile to lodge. If any tax was withheld from your pay, lodging a return is the only way to get that money back. If you don’t need to lodge, you can submit a “non-lodgement advice” through the ATO to let them know.

Key Dates and Deadlines

Missing a deadline is the easiest way to attract ATO penalties for late lodgement. Understanding the annual timeline is your first step to a smooth and penalty-free tax season. Here are the tax return due dates Australia follows.

ActivityDate / DeadlineNotes
Financial year ends30 June 2025This is the final day of the income year you need to report on.
myTax opens1 July 2025You can start lodging your individual tax return 2025 online via myGov.
Individuals lodging themselves31 October 2025This is the hard deadline if you’re lodging on your own.
Using a registered agentUsually up to 15 May 2026You must be registered with the agent before 31 October to qualify for the extension.
ATO refund timeframe~2 weeks (if no issues)Check current ATO guidance for any potential tax refund delays in 2025.

For a more detailed breakdown, check our complete guide to Australian tax return due dates for 2025.

How to Lodge a Tax Return

Here is a simple breakdown of how to lodge a tax return in Australia.

  1. Gather your documents: Collect all your income statements, bank interest details, dividend statements, and receipts for deductions.
  2. Log into myGov: Access the ATO portal by logging into your myGov account and ensuring your ATO login and myGov link is active.
  3. Check pre-fill data: Wait until late July for the ATO to pre-fill information from your employers, banks, and health funds. This reduces errors.
  4. Add your deductions: Enter all your work-related expenses, donations, and other allowable deductions.
  5. Declare all income: Review the pre-filled income data and add any other income sources, such as from a side hustle or investments.
  6. Review and submit: Double-check all details, especially your bank account information, and submit your return by the deadline.
  7. Receive your assessment: The ATO will send a Notice of Assessment outlining your refund or tax payable.

If you want a deeper dive, our guide on how to lodge your tax return online before 31 October has more details.

What Documents You Need

Being organised is the secret to a fast and accurate tax return. Use this tax return checklist Australia to ensure you have everything ready.

  • Income statements: Your employer reports this directly to the ATO now. You can access it via myTax.
  • Bank and investment statements: Details of any interest or dividends you’ve earned.
  • Rental property records: All income received and expenses paid for your investment property.
  • Business income: A summary of earnings for ABN holders.
  • Private health insurance statement: This is needed for the Medicare Levy Surcharge calculation.
  • Donation receipts: Records of gifts to registered charities.
  • Work-related receipts: Evidence for claims like uniforms, tools, travel, and home office expenses.
  • Motor vehicle logbook: Required if you’re using the logbook method to claim car expenses.
  • Spouse’s income details: Needed for certain tax offsets and calculations.

For a comprehensive list, see our detailed Australian tax return checklist.

Common Deductions You Can Claim

What can I claim on my tax return? This is one of the most common questions at tax time. The golden rule is simple: if you spent your own money to help you earn your income, and you have proof, you can likely claim it as a deduction.

Here are some of the most common deductions for Australian taxpayers:

CategoryExamples
Work-related expensesUniforms, protective gear, tools of trade, professional subscriptions, and training courses.
Working from homeA portion of your internet, phone, and electricity bills using the fixed-rate or actual cost method.
Motor vehicle expensesUse the cents per kilometre method (up to 5,000km) or the logbook method for higher claims.
Self-educationCourse fees, textbooks, and travel if the study is directly related to your current role.
DonationsGifts of $2 or more to registered charities. Keep your receipts.
Tax agent feesThe cost of preparing last year’s tax return can be claimed this year.

Always check the latest ATO guidance as rules can change. You can see how tax brackets affect your final bill on the ATO’s page for current tax rates for Australian residents.

Worked Example – Typical Employee Tax Return

Let’s look at a simple scenario to see how it works.

Scenario: Jasmine is a nurse in NSW who earned a gross income of $85,000 in the 2024–25 financial year. Her employer withheld $20,000 in PAYG tax.

She has kept records for the following deductions:

  • Uniform and laundry expenses: $350
  • Work-related portion of her mobile phone bill: $200
  • Donations to a registered charity: $150
  • Total Deductions: $700

Calculation:

  • Taxable Income: $85,000 – $700 = $84,300
  • Based on the income tax rates 2025 Australia, the tax payable on $84,300 is approximately $19,400.
  • Tax withheld by employer: $20,000
  • Result: Jasmine is due for a tax refund of approximately $600 ($20,000 – $19,400).

This example shows how even small deductions can make a difference.

Mistakes That Trigger ATO Reviews and How to Avoid Them

Nobody wants a letter from the tax office. Here are some common tax return mistakes to avoid that can trigger an ATO review.

MistakeQuick Fix
Overclaiming deductionsKeep all receipts and only claim what you’re entitled to. Don’t guess or estimate without a valid basis.
Lodging before pre-fill data is readyWait until late July to lodge. This ensures all data from employers and banks is correctly loaded into myTax.
Not declaring all incomeThe ATO matches data from banks, share registries, and the gig economy. Include all income from side hustles, crypto, and investments.
Forgetting private health insurance infoYour policy details are needed to avoid the Medicare Levy Surcharge if you’re a high-income earner. Check this is pre-filled correctly.
Using incorrect bank account detailsDouble-check your BSB and account number. A simple typo is a common cause of tax refund delays.

Personal income tax is the government’s largest revenue source, which is why claims are scrutinised. You can learn more about this from the government finance statistics.

Small Business and Sole Trader Tax Returns

If you’re self-employed, this small business tax return guide section is for you. You don’t lodge a separate business return; instead, you include your business income and expenses in your individual tax return using the Business and Professional Items Schedule.

Here are some essential tips:

  • Report GST correctly: If you are registered for GST, ensure your BAS reporting aligns with your tax return.
  • Keep digital records: You must keep all business records for at least five years.
  • Claim legitimate deductions: Only claim expenses directly related to running your business.
  • Use accounting software: Tools like Xero or MYOB make record-keeping and compliance much easier.

Your net business profit is added to any other income you have, and you are taxed on the total amount at your personal marginal tax rate.

FAQs

Here are quick answers to the most common questions.

When can I lodge my tax return for 2025?

You can lodge your individual tax return 2025 from 1 July 2025 using myTax or through your registered tax agent.

How to get a faster tax refund?

Lodge online, ensure all your pre-fill information is correct, declare all your income, and double-check your bank details. Most online refunds are processed within two weeks.

Can I still lodge my tax return late?

Yes, but ATO penalties for late lodgement may apply. It is always better to lodge late than not at all. Contact the ATO or a tax agent if you need help.

What if I made a mistake on my return?

You can amend your tax return easily through myTax or by asking your accountant. You generally have two years to make amendments.

Can I lodge without a group certificate?

Yes. Your employer now reports your income and tax information directly to the ATO through Single Touch Payroll. This information, known as an income statement, will be available in the pre-fill section of your myTax return.

Do I need receipts for everything?

Yes. The ATO requires you to keep records (like receipts, invoices, and bank statements) for at least five years to prove your deduction claims in case of a review.

Conclusion

Lodging your tax return correctly saves you stress, time, and money. Whether you use myTax or a registered accountant, the keys to success are being organised, declaring all income, and keeping good records for every deduction you claim. Following this simple guide to Australian tax returns will help you lodge with confidence.

For expert ATO help for tax time, trust the professionals at Nanak Accountants & Associates. We simplify the process, maximise your refund, and ensure you stay compliant.

Ready for a seamless tax time? Visit us at https://www.nanakaccountants.com.au to book your consultation or call 1300 NANAK TAX (626 258).

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Written by

Puneet Singh

Principal, MIPA AFA, MBA, MPA, B. Com
12+ Years Industry Experience

Puneet Singh is the Founder and Principal of Nanak Accountants & Associates, serving over 10,000 clients across Australia. Known for combining compliance with strategic insight, he helps individuals and small businesses build wealth, protect assets, and scale confidently.

More than just a tax professional, Puneet is a forward-thinking advisor focused on long-term growth and financial stability.