Taxplain
Capital Gains Tax

Main Residence Exemption — CGT on Your Home in Australia

How the main residence CGT exemption works in Australia. When your home is exempt, the partial exemption for periods of rental, and how to calculate your CGT liability.

Updated June 2026·Written & reviewed by a CPA-qualified accountant·Based on public ATO guidance·General information only
Independent guide: Based on publicly available ATO guidance — not affiliated with the ATO. Tax law changes frequently — for your specific situation, consult a registered tax agent.

Frequently Asked Questions

Do I pay CGT when I sell my home in Australia?

Generally no — your main residence is exempt from CGT if it was your primary home for the entire ownership period. However, CGT may apply if you used part of the home to produce income, rented it out for any period, or it was not your main residence for the entire time you owned it.

What is the 6-year rule for main residence exemption?

If you move out of your main residence and rent it out, you can continue to treat it as your main residence for up to 6 years for CGT purposes, provided you do not treat another property as your main residence during that time.

How is CGT calculated if I rented my home for part of the time?

A partial exemption applies. The taxable portion is calculated as: capital gain × (days the property was not your main residence ÷ total days owned). The 50% CGT discount may also apply if you owned the property for more than 12 months.

Have a more specific question?
Ask Taxplain — it researches ato.gov.au and gives you a plain English explanation in seconds.
Ask the chatbot →
General information only. This guide provides general information about Australian tax law and does not constitute personal tax advice. Tax laws change and individual circumstances vary. Always consult a registered tax agent (registered with the Tax Practitioners Board) for advice specific to your situation. Taxplain is not a registered tax agent.