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When Do I Pay CGT — At Settlement or in My Tax Return?

Published 26 June 2026 · Last updated 26 June 2026

Quick Answer

In Australia, CGT is not paid at property settlement. Instead, you calculate and report any capital gain or loss in your annual tax return for the financial year in which the contract is signed. Speak to your accountant for specific advice based on your circumstances.

When you sell an investment property in Australia, understanding when Capital Gains Tax (CGT) is payable is crucial. Many investors mistakenly believe CGT is due at the time of settlement. However, the ATO requires you to report and pay CGT as part of your annual tax return for the financial year in which the sale contract is signed.

When CGT is Payable — Settlement vs. Tax Return

CGT is not a separate tax; it is a part of your income tax. The taxable event occurs when you sign the contract of sale, not at settlement. This means the relevant financial year for reporting the capital gain or loss is determined by the contract date. The net capital gain is included in your assessable income in your tax return for that financial year. This is a common area of confusion, as many investors assume the actual exchange of money at settlement dictates when CGT is payable.

How This Works in Practice

Imagine you sold your investment property, a 3-bedroom house in Melbourne, on 15 June 2023, with settlement occurring on 15 July 2023. The contract date of 15 June 2023 means that the capital gain is reported in your tax return for the 2022–23 financial year. If you purchased the property for $500,000 and sold it for $800,000, your capital gain is $300,000. Assuming you held the property for over 12 months and are eligible for the 50% CGT discount, your taxable gain would be $150,000. At a 37% marginal tax rate, this results in an additional tax payable of $55,500.

Professional Insight

In our experience, many investors are surprised to learn that the contract date, not settlement date, dictates the tax year for CGT. This can affect cash flow planning, especially if you anticipate a large gain. One thing we frequently see is investors not setting aside sufficient funds to cover the tax liability, expecting it to be due only in the next financial year. Additionally, investors often overlook the importance of maintaining accurate records of purchase costs and capital improvements, which are critical in accurately calculating the cost base and reducing CGT liability.

When Does the Answer Change?

  • Pre-1985 Assets: Properties acquired before 20 September 1985 are exempt from CGT.
  • Main Residence Exemption: If the property was your main residence, it might be exempt or partially exempt from CGT.
  • Inherited Property: Different rules apply based on the deceased’s acquisition date.
  • Properties in SMSFs: The tax treatment can vary significantly, and professional advice is essential.

When Should You Seek Professional Advice?

Consider seeking professional advice if your property sale involves complexities such as partial main residence exemption, foreign ownership, or mixed-use properties. A Chartered Quantity Surveyor can assist with cost base calculations, and an accountant can help with tax implications. These professionals work together to ensure accurate reporting and tax compliance.

What to Do Next

  • Confirm the contract date of your property sale to determine the correct financial year for CGT reporting.
  • Gather all relevant documentation, including purchase contracts and records of capital improvements.
  • Calculate your capital gain or loss, considering eligibility for any discounts or exemptions.
  • Consult with a Chartered Quantity Surveyor for accurate cost base assessment.
  • Include the capital gain or loss in your tax return for the correct financial year.
  • Set aside sufficient funds to cover any tax liability resulting from the capital gain.
  • Frequently Asked Questions

    How does the contract date affect CGT reporting?

    The contract date determines the financial year in which the capital gain or loss is reported, not the settlement date. It's crucial for your tax return timing.

    Can I pay CGT in instalments?

    While CGT is included in your annual tax return, if you have a large liability, you may arrange a payment plan with the ATO, subject to their approval.

    Does the CGT discount apply to all investors?

    The 50% CGT discount is available to individuals and trusts holding the asset for more than 12 months. Companies are not eligible for this discount.

    Are there state-specific variations in CGT rules?

    CGT is governed by federal law, so the rules are consistent across all Australian states and territories. State-specific taxes may apply separately.

    How do I report CGT in my tax return?

    You report CGT in your tax return by including the net capital gain in your assessable income. Ensure you have all necessary documentation to support your calculations.

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