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The CGT reform is law and starts on 1 July 2027. The IBCC is still a bill. Content last reviewed 13 November 2026. See status

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CGT reform timeline: what's law and what's still proposed

Where each part of the CGT reform is up to, from the enacted Tax Reform No. 1 Act to the IBCC bill and the trust changes.

· 1 min read · For all shareholders

The CGT reform is arriving in several pieces. Some are law, some are still bills. Here's where each one stands.

WhenWhatStatus
2026Tax Reform No. 1 Act: indexation replaces the 50% discount for gains from 1 July 2027, a 30% minimum tax, and assets treated as sold and reacquired at 30 June 2027Law
11 September 2026IBCC exposure draft released by TreasuryHappened
27 October 2026Tax Reform No. 4 Bill (the IBCC) introduced to ParliamentBill
Not yet registeredDraft apportioning formula for assets without a readily ascertainable market valueDraft
1 July 2027Indexation and the minimum tax start to applyLaw
1 July 2028Proposed discretionary trust minimum tax (Tax Reform No. 3)Bill

What could still change

The IBCC bill, the trust measures and the apportioning formula can all change before they're final. Areas to watch include the IBCC's activity tests, how common employee share terms are treated, and how the trust minimum tax interacts with bucket companies.

What this means for you

The core reform doesn't depend on any of the bills. Whatever happens to the IBCC, gains from 1 July 2027 are taxed under the new rules, so the value of what you hold on 30 June 2027 matters now.

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General information only, not tax advice. Measures may change as legislation progresses.

Before 1 July 2027

See what the changes mean for your shares.

Work through 24 real-world scenarios and compare the tax on each route, before and after the reform.