Australia's Capital Gains Tax Overhaul Takes Effect July 2027, With Expanded Small Business Shield

From 1 July 2027, Australia replaces its flat 50% capital gains discount with an inflation-adjusted cost basis and 30% minimum tax floor. The government raised the small business active asset threshold to $10 million on 18 June 2026, preserving relief for 98% of businesses by count. Four existing small business concessions remain intact, anchoring exit planning for owner-operated enterprises while creating complexity for larger taxpayers.