Tax Return 2026: The ATO’s Focus Areas and How to Get Your Return Right

Tax season is well underway, and millions of Australians are lodging their 2025-26 tax returns right now. Before you rush to hit submit, it is worth knowing exactly where the Australian Taxation Office (ATO) is looking this year. With increasingly sophisticated data matching, the ATO cross-checks your return against banks, employers, health funds, share registries, rental data and cryptocurrency exchanges, so claims that do not stack up are far more likely to be flagged.

At FinTax Partners in Greenslopes, Brisbane, we help individuals, investors and business owners lodge accurate, defensible returns that claim everything they are legitimately entitled to, without the errors that attract ATO attention. Here is what the ATO is focused on for 2026, what has changed, and the key dates you need to know.

The ATO’s Key Focus Areas for 2026

The ATO has flagged the same three high-risk areas it returns to most years, because they are where the most mistakes happen. For 2026, the focus is on work-related expenses, rental property deductions and declaring all your income.

1. Work-Related Expense Claims Work-related deductions are the ATO’s number one focus, and the rules are strict. To claim a work-related expense, three things must be true: you paid for it yourself and were not reimbursed, it directly relates to earning your income, and you have a record to prove it. Working-from-home claims get particular attention. If you use the fixed-rate method, you need a genuine record of the hours you worked from home, not an estimate.
2. Rental Property Deductions Rental deductions are a major focus area. The ATO has said that the large majority of rental property owners make errors in their returns, most commonly by mixing up repairs and capital improvements. General repairs and maintenance can usually be claimed immediately, but capital improvements and initial repairs on a newly purchased property must be treated differently. The ATO is also watching for deductions that appear inflated to offset higher rental income. If you own an investment property, our  rental property tax services can help you claim correctly.
3.  Declaring All of Your Income The ATO uses data matching to check that all your income is declared, not just your salary. This includes bank interest, dividends, capital gains on shares, cryptocurrency disposals, and income from side hustles and the sharing economy (for example ride-share, short-stay letting and online selling), which is now reported to the ATO under the Sharing Economy Reporting Regime. If you earned it, assume the ATO knows about it, and declare it.

What Has Changed for 2026

One change that may catch some taxpayers and businesses by surprise: from 1 July 2025, the general interest charge (GIC) and shortfall interest charge (SIC) that the ATO applies to unpaid or underpaid tax are no longer tax deductible. If you have an ATO payment plan or a tax debt, this makes staying on top of your obligations more important than ever, because the interest now costs you more in real terms. If this affects you, talk to us about managing your position.

2026 Tax Return Deadlines

If you lodge your own return, the deadline is 31 October 2026. If you lodge through a registered tax agent such as FinTax Partners, you generally have until 15 May 2027, provided you are on our client list before 31 October 2026. That extension is one of the practical benefits of using a registered tax agent.

Should you lodge now or wait? Early in tax time, some of your pre-fill information (such as interest, dividends and private health details) may not have finished loading. Lodging before your pre-fill is complete is a common cause of errors and amendments. It is often worth making sure your records and pre-fill are complete first, which is something we check as part of preparing your return.

How FinTax Partners Helps You Get It Right

Our job is not to chase the biggest possible refund. It is to make sure your return is accurate, complete and defensible, so you claim everything you are entitled to and avoid the errors that trigger ATO reviews, delays or amendments. We prepare returns for individuals, property investors, sole traders and businesses across Brisbane, and we handle the complex situations, multiple income sources, rental schedules, capital gains and cryptocurrency, that are easy to get wrong on your own. Explore our Individual tax return services to see how we can help.

Lodge Your 2026 Tax Return With Confidence

Do not risk an error that costs you your refund or triggers an ATO review. The team at FinTax Partners in Greenslopes can prepare an accurate, fully compliant 2026 tax return for you, and as a registered tax agent, we can also extend your lodgement deadline. We work with individuals, investors and businesses right across Brisbane.