The CGT main residence exemption debate — what's been proposed, what the law says, and what it means for homeowners.
When Capital Gains Tax was introduced in Australia in 1985, the family home was specifically excluded. Under the main residence exemption, when you sell the property you live in as your primary home, any capital gain is fully exempt from CGT. This means you pay no tax on the profit, regardless of how much the property has increased in value.
The exemption applies as long as the property has been your main residence for the entire time you owned it. Partial exemptions apply if you rented it out for a period, used it for business, or it was your main residence for only part of your ownership period. For the full rules, see the ATO's main residence exemption page.
Various think tanks and research bodies have proposed reforms to the main residence exemption as part of broader housing affordability discussions. These have included:
These proposals have come from organisations including the Grattan Institute and AHURI, which argue the exemption contributes to wealth inequality by disproportionately benefiting those in high-growth property markets. The RBA has also flagged the role of tax settings in housing affordability.
The family home CGT exemption is widely considered politically untouchable in Australia. Homeownership is deeply embedded in the Australian cultural and financial identity — the "great Australian dream." With around two-thirds of Australian households owning or purchasing their home, any proposal to tax the family home risks alienating a large majority of voters.
For many Australians — particularly retirees — the family home is their primary asset and a key part of their retirement plan. A CGT on the home sale could force people to sell at a time not of their choosing, or significantly reduce the proceeds available for downsizing. No major political party has committed to this reform, and it is generally treated as a line that will not be crossed in the near term. The Parliamentary Committee on Tax and Revenue has noted the sensitivity in its housing inquiries.
Any debate about the main residence CGT exemption is entirely separate from CGT on shares, ETFs, managed funds, or other investments. Those assets have always been subject to CGT since 1985. The 50% CGT discount — which halves your taxable gain on assets held for over 12 months — applies to shares and investment properties, but not to your primary home (because the home is already fully exempt).
If the home exemption were ever changed, it would not affect how CGT on shares or ETFs is calculated. Those are governed by separate provisions of the tax law.
A separate but related debate concerns the 50% CGT discount on investment properties. Labor proposed halving this discount (to 25%) at the 2019 federal election, arguing it encouraged speculative investment in property. That proposal was abandoned after Labor lost the election and has not been revived in any substantive form since. The 50% CGT discount on investment properties remains in place as of 2025-26.
Note that the 2027 negative gearing and CGT changes announced in May 2026 do introduce changes to how CGT is calculated on assets from 1 July 2027 — replacing the 50% discount with CPI indexation and a 30% minimum tax rate. These changes apply to investment assets, not the primary home.
Under current law, there is nothing you need to do. Selling your primary home remains fully CGT-exempt. There is no legislation that changes this, and no credible indication that any major party will introduce such a change in the near term.
If your situation is more complex — for example, you have rented out part of your home, used it for a home-based business, or it has not been your main residence for the full ownership period — the partial exemption rules can be complicated. In those cases, speaking with a registered tax agent is worthwhile. The ATO's home exemption tool can also help you check your situation.
As of April 2026, the main residence CGT exemption is fully intact. No legislation to cap, means-test, or remove the exemption has been introduced in Parliament. The debate continues in academic and policy circles, but it has not translated into any concrete government policy. Homeowners can plan on the current rules applying when they sell.
Disclaimer: This article provides general information about the CGT main residence exemption debate in Australia. It is not financial or tax advice. Tax laws can change — always consult the ATO or a qualified tax professional for advice specific to your situation.