Koste Chartered Quantity Surveyors 1300 669 400  |  info@koste.ai

Owning Property · Koste Knowledge Base

How the 6-Year Absence Rule Works for CGT in Australia

Published 26 June 2026 · Last updated 26 June 2026

Quick Answer

The 6-year absence rule allows you to treat your former home as your main residence for Capital Gains Tax (CGT) purposes for up to six years after you move out, provided it is not used for producing assessable income. This means you can rent it out and still be exempt from CGT on future sale, under certain conditions.

If you've ever moved out of your primary residence and turned it into an investment property, the 6-year absence rule could significantly impact your Capital Gains Tax (CGT) obligations. This rule allows you to treat your former home as your main residence for CGT purposes for up to six years after you stop living there, as long as you do not treat another property as your main residence during this period.

How the 6-Year Absence Rule Works for CGT

Under Australian tax law, specifically the main residence exemption provisions, the 6-year absence rule allows homeowners to maintain their CGT exemption for a property that they have moved out of, provided certain conditions are met. The key condition is that the property must have been your main residence before it was rented out or otherwise used to produce income.

The most common misconception is that you can only apply this rule if the property is unoccupied. In reality, the property can be rented out during the absence period, but this rental period must not exceed six years if you wish to maintain the CGT exemption. If you return to live in the property, the six-year period resets, allowing you to potentially extend the exemption period if you move out again.

How This Works in Practice

Consider a scenario where you purchased a 3-bedroom house in Richmond, Melbourne, in 2010 for $800,000. You lived there until 2018, then moved interstate for work and rented out the property. Under the 6-year absence rule, you can treat the house as your main residence until 2024. If you sell the property in 2023 for $1.2 million, you would be exempt from CGT on the $400,000 gain, assuming you did not nominate another main residence during this period.

At a 37% marginal tax rate, this exemption could save you approximately $148,000 in tax, which is a substantial financial benefit.

Professional Insight

In our experience, many investors overlook the importance of documenting their main residence status and the periods of absence. One thing we frequently see is investors failing to account for the time they actually lived in the property before renting it out, which is crucial for applying the 6-year rule. Additionally, some investors mistakenly believe that moving overseas disqualifies them from claiming the exemption, which isn't true as long as they meet the other criteria.

What most investors don't realise is that the six years can be non-consecutive. You can live in the property again, and the clock resets, giving you another potential six-year period.

When Does the Answer Change?

  • Post-9 May 2017 Changes: If you acquired the property after this date, certain rules regarding foreign residents may affect your ability to claim the exemption.
  • Pre-1985 Properties: Capital gains tax does not apply to properties acquired before 20 September 1985.
  • Main Residence Nomination: If you nominate another property as your main residence during the absence, you cannot apply the 6-year rule.
  • Properties Held in Trusts or Companies: The rule generally does not apply to properties held in trusts or companies.
  • When Should You Seek Professional Advice?

    While the 6-year absence rule can offer significant tax benefits, the specifics can vary based on individual circumstances, such as the timing of property acquisitions, periods of residence, and other properties owned. A Chartered Quantity Surveyor can provide detailed guidance on your property's depreciation and CGT implications, while an accountant can help ensure compliance with tax laws.

    What to Do Next

  • Review Your Property Records: Ensure you have accurate records of your property's purchase date, periods of residence, and rental income.
  • Consult with a QS and Accountant: Get professional advice tailored to your situation.
  • Evaluate Your Property Portfolio: Consider how the 6-year rule affects your overall investment strategy.
  • Document Your Main Residence Status: Keep detailed records to support your CGT exemption claim.
  • Consider Future Moves: If planning to move again, understand how it affects your current and potential future exemptions.
  • Frequently Asked Questions

    Can I apply the 6-year absence rule if I move overseas?

    Yes, as long as the property was your main residence before moving and you do not nominate another property as your main residence during the absence.

    Does the 6-year absence rule apply to properties held in a trust?

    No, the 6-year absence rule generally does not apply to properties held in trusts or companies.

    What happens if I sell my property after the 6-year period?

    If you sell after six years of absence without returning, you may be liable for CGT on the period beyond the exemption.

    How does the 6-year rule apply in Victoria?

    The rule applies uniformly across all Australian states, including Victoria, as it is federal tax legislation.

    How do I report the 6-year absence rule on my tax return?

    You will need to maintain records and may need to provide evidence of your main residence status and periods of absence if audited.

    Related Articles

    Read Full Article Free Calculator
    capital gains tax6-year absence ruleproperty investmentmain residence exemptiontax strategy

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