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What is a Rental Property Loss and How Does It Offset My Income?

Published 26 June 2026 · Last updated 26 June 2026

Quick Answer

A rental property loss occurs when your rental expenses exceed your rental income. Under Australian tax law, this loss can offset your other taxable income, reducing your overall tax liability. This is known as negative gearing. Always consult with a Chartered Quantity Surveyor and your accountant to maximise benefits.

A rental property loss happens when the costs of owning and managing a rental property exceed the income it generates. This is a common scenario in Australia, especially with properties that have high mortgage interest and maintenance costs. The Australian tax system allows you to use these losses to offset your other taxable income, potentially reducing your tax bill.

Under the Australian Income Tax Assessment Act, rental property expenses that can lead to a loss include mortgage interest, council rates, property management fees, maintenance, and depreciation. When these expenses surpass your rental income, the resulting 'loss' can be used to reduce your taxable income from other sources, such as salary or business income. This is commonly referred to as negative gearing.

One major misconception is that rental property losses can always be beneficial. While they can lower your tax burden, they should not be the sole reason for investing in property, as the ultimate goal should remain capital growth and positive cash flow.

To see how this plays out, consider a 2015-built three-bedroom house in Melbourne purchased for $800,000. The annual rental income is $30,000, but the owner incurs $40,000 in expenses, including mortgage interest, property management fees, and maintenance. This results in a $10,000 rental loss. For an investor in the 37% tax bracket, this loss reduces their taxable income, saving them $3,700 in tax for that year.

In our experience reviewing thousands of properties across Australia, investors often overlook the importance of detailed record-keeping. Accurate documentation of all expenses is crucial for maximising tax benefits. Additionally, many investors fail to claim depreciation on eligible assets under Division 40 and Division 43, missing out on significant tax savings. Another frequent oversight is underestimating future maintenance costs, leading to unexpected financial strain.

The answer can differ depending on your situation. For properties purchased after 9 May 2017, depreciation claims on previously used plant and equipment are restricted, affecting the overall benefit of negative gearing. Similarly, properties owned within a self-managed super fund (SMSF) have different tax implications. Joint property ownership can complicate how losses are distributed between owners, and commercial properties follow distinct rules compared to residential ones.

Given the complexity of tax laws and the potential for significant financial impact, it's wise to consult with a Chartered Quantity Surveyor and your accountant. They can help ensure all deductions are accurately claimed and that your investment strategy aligns with your financial goals.

  • Review your property expenses and ensure all are deductible.
  • Document and file all receipts and financial records meticulously.
  • Consult with a Chartered Quantity Surveyor for a comprehensive depreciation schedule.
  • Discuss your tax situation with your accountant to optimise your tax return.
  • Consider long-term financial goals beyond immediate tax savings.
  • Stay informed about changes in tax legislation affecting property investments.
  • Frequently Asked Questions

    How does negative gearing affect my tax return?

    Negative gearing allows you to deduct rental property losses from your other income, reducing your taxable income and potentially lowering your tax bill.

    Can I claim a rental loss on a commercial property?

    Yes, but the rules differ from residential properties. Consult a professional to ensure compliance with specific regulations for commercial investments.

    Does owning a property with someone else impact rental loss claims?

    Yes, rental losses are typically split according to ownership percentage, affecting each owner's tax return individually.

    Are there any state-specific rules for rental property losses?

    While federal tax laws govern rental losses, state taxes and regulations can affect overall property expenses, such as land tax.

    How do I report a rental loss on my tax return?

    Rental losses are reported in the supplementary section of your tax return. Ensure all figures are accurate and supported by documentation.

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    Written by Koste Team · Koste Chartered Quantity Surveyors · AIQS Member · RICS Member · TPB Registered · 1300 669 400 · info@koste.ai