Executive Summary
When a primary residence is converted into an investment property, the 6-year absence rule can reduce Capital Gains Tax (CGT). In this Yass property case, the rule applies but only partially. The property was rented for longer than the permitted six-year period, meaning part of the capital gain remains taxable. While the absence rule provides valuable relief, exceeding the allowable timeframe limits the exemption. As a result, careful calculation and compliance with Australian Taxation Office (ATO) guidelines are essential to ensure the correct treatment of the gain.
Core Conclusion: Partial Main Residence Exemption
Under Section 118-145 of the ITAA 1997, a taxpayer may treat a former main residence as exempt for up to six years while it produces income.
In this case:
- The property ceased being the main residence on 30 November 2018
- It was rented from 1 December 2018 to 26 March 2025
Because the rental period exceeded six years, only the first six years qualify for exemption. The remaining period becomes subject to CGT. This leads to a partial exemption, not a full one, which must be apportioned based on time.
Key Legislative Framework and Timelines
The CGT outcome depends heavily on timing and legislation:
- CGT Event A1 (s104-10 ITAA 1997): Occurs on the contract date, not settlement
- Contract Date: 19 May 2025
- Tax Year: 2024–25 financial year
Key periods:
- Main residence: 18 January 2013 – 30 November 2018
- Income-producing use: 1 December 2018 – 26 March 2025
- 6-year exemption limit: expires around 30 November 2024
- Taxable period: 30 November 2024 – 19 May 2025
A temporary vacancy before sale does not extend or reset the six-year limit.
Technical Considerations
A critical rule is Section 118-192 (first use to produce income):
- The property is deemed acquired at market value when first rented (1 December 2018)
This reset reduces the taxable gain by aligning it with the property’s value at the time it became an income-producing asset.
Additionally:
- Owning another property does not automatically disqualify the exemption
- A taxpayer generally cannot treat two properties as their main residence simultaneously
These rules must be applied carefully to avoid overclaiming exemptions.
Practical Takeaways and Evidence Requirements
To ensure ATO compliance:
- Apportion the gain based on exempt vs taxable days
- Obtain a market valuation at the date income use commenced
- Maintain documentation, including:
- Ownership and residency records
- Rental agreements
- Vacancy periods
- Sale contract
Accurate records are essential to substantiate any CGT calculation and withstand review.
Final Thoughts
The 6-year main residence rule is a powerful concession, but it is not unlimited. As demonstrated in this case, exceeding the allowable absence period results in partial CGT exposure and requires precise calculation under Australian tax law.
Understanding the interaction between timing, valuation, and residency rules is crucial. To ensure your tax position is correctly reported and optimised in line with ATO requirements, it is recommended to seek professional advice. A qualified accountant can help you apply the legislation accurately, minimise risk, and ensure compliant lodgement of your tax return.
Speak with our team today to stay compliant and protect your growing business.