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What Are the Tax Implications of Selling an Investment Property?

Published 26 June 2026 · Last updated 26 June 2026

Quick Answer

When selling an investment property in Australia, Capital Gains Tax (CGT) usually applies. The gain is added to your income and taxed at your marginal rate. Holding the property for over 12 months may qualify you for a 50% CGT discount. Specific rules apply to properties held in super funds or by companies.

Selling an investment property in Australia triggers several tax considerations, primarily involving Capital Gains Tax (CGT). Understanding these implications can significantly impact your net proceeds from the sale.

Capital Gains Tax and Discounts

Capital Gains Tax (CGT) is the primary tax concern when selling an investment property. Under the Income Tax Assessment Act 1997, the capital gain or loss is calculated by subtracting the property's cost base from the sale price. The cost base includes the purchase price, plus any associated costs like stamp duty, legal fees, and capital improvements. If the property was owned for more than 12 months, individual investors may be eligible for a 50% CGT discount, reducing the taxable gain by half. Companies, however, are not eligible for this discount, and superannuation funds receive a one-third discount.

How This Works in Practice

Consider a 2-bedroom apartment in Sydney, purchased in 2010 for $600,000 and sold in 2023 for $950,000. The cost base, including purchase costs and improvements, totals $650,000. The capital gain is $300,000. If held for over 12 months by an individual, the taxable gain becomes $150,000 after the 50% discount. At a 37% marginal tax rate, this results in $55,500 in CGT payable.

Professional Insight

In our experience, many investors overlook the importance of accurately calculating the cost base, often missing eligible expenses like renovation costs. One thing we frequently see is investors not realising the impact of timing their sale to coincide with lower marginal tax rate years, such as retirement. Another common oversight is the failure to consider the implications of property improvements on both cost base and depreciation recapture.

When Does the Answer Change?

  • Pre-September 1985 Properties: Properties acquired before 20 September 1985 are exempt from CGT.
  • Non-resident Investors: Non-residents for tax purposes face different CGT rules and cannot access the CGT discount.
  • Properties Held in Super Funds: Super funds enjoy a one-third CGT discount, not the 50% available to individuals.
  • Joint Ownership: CGT is apportioned according to ownership percentage.

When Should You Seek Professional Advice?

Selling an investment property involves complex tax calculations that depend on your specific circumstances, such as ownership structure and residency status. Engaging a Chartered Quantity Surveyor and accountant can ensure accurate cost base calculations and optimise your tax outcome.

What to Do Next

  • Determine Your Property's Cost Base: Include all eligible costs to maximise your cost base.
  • Assess Your Eligibility for CGT Discounts: Check if and how much of the CGT discount applies to you.
  • Consult with a Tax Professional: Confirm your tax obligations and explore strategies to minimise your CGT.
  • Consider Timing the Sale: Align the sale with your financial year planning to optimise tax outcomes.
  • Review Ownership Structure: Understand how your ownership impacts CGT, especially in joint or trust arrangements.
  • Frequently Asked Questions

    How is CGT calculated when selling an investment property?

    CGT is calculated by subtracting the cost base from the sale price. The resulting gain is added to your assessable income and taxed at your marginal rate. Discounts may apply based on ownership duration.

    What happens if I sell my property at a loss?

    If you sell at a loss, you incur a capital loss, which can be used to offset capital gains in the same financial year or carried forward to future years.

    Are there state-specific taxes when selling property?

    While CGT is federal, states may impose additional taxes, such as stamp duty on transfer of ownership. Always check local regulations.

    How do I report the sale of my investment property in my tax return?

    Report the sale in the CGT section of your tax return. Include details of the sale price, cost base, and any applicable discounts.

    Does CGT apply to inherited properties?

    Inherited properties may be subject to CGT, depending on when the original owner acquired the property and other factors. Specialist advice is recommended.

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