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Federal tax · Property rule changes explained

Capital gains tax and negative gearing: what changes on 1 July 2027

Both changes are now law. Here is what they mean for residential property investors, in plain English.

LawAct No. 49 of 2026
Assented26 June 2026
Starts1 July 2027
Negative gearing cut-off7:30pm, 12 May 2026

Capital gains tax

Until 30 June 2027

  • Individuals, trusts and partnerships that hold a property for more than 12 months pay tax on half the gain (the 50% discount).

From 1 July 2027

  • The 50% discount is replaced by indexation: your cost base rises with inflation (CPI), so only the gain above inflation is taxed. This applies to Australian residents holding for 12 months or more.
  • A 30% minimum tax applies to net capital gains. People on certain income support payments are exempt.
  • Companies, super funds and foreign residents do not get indexation.
If you own a property on 30 June 2027: it is treated as sold and bought back at its market value on that date. The gain up to that value keeps the 50% discount and is taxed when you actually sell. Keeping evidence of that market value, such as a valuation, will matter.
New homes and affordable housing: owners may choose to keep the 50% discount, or use indexation instead. If they keep the discount, the 30% minimum does not apply.

Your main residence exemption does not change.

Estimate your CGT →

Negative gearing

  • Affected: established residential dwellings acquired after 7:30pm (AEST) on 12 May 2026, the night of the Federal Budget.
  • From 1 July 2027: net rental losses on those dwellings can only be deducted against income from residential dwellings — not against salary or other income.
  • Not affected: dwellings acquired before the cut-off, and new residential dwellings.
Check your property →

What to watch

  • ATO guidance on how the 30 June 2027 market value should be worked out and evidenced.
  • Which CPI figures are used for indexation.
  • Exactly how “acquired” and “new residential dwelling” apply to your situation.
  • Separately announced measures that are not in this Act, such as a 30% minimum tax on discretionary trust distributions from 1 July 2028.
This page is general information, not tax or financial advice. Speak to a registered tax agent about your situation.
Sources (checked 17 October 2026): ATO — Treasury Laws Amendment (Tax Reform No. 1) Act 2026 · Parliament of Australia — Bill page · Parliamentary Library — Bills Digest · Treasurer — Second reading speech · Baker McKenzie (1 July 2026) · Hall Chadwick QLD (26 August 2026)