# Australian capital gains tax reform > Live situation record from CLSTR: https://clstr.news/situations/australian-capital-gains-tax-reform > Updated: 2026-09-28T22:30:00.000Z. Sources: 5. Developments: 2. Australia is preparing for significant Capital Gains Tax (CGT) reforms scheduled for implementation on 1 July 2027. Following the Royal Assent of the Treasury Laws Amendment (Tax Reform No. 1) Act 2026, the existing 50 per cent CGT discount for individuals, trusts, and partnerships will be replaced by a cost base indexation method tied to the Consumer Price Index (CPI). Under this transition, assets will be treated as reacquired at market value on the implementation date; gains accrued before this date will retain the 50 per cent discount, while subsequent gains will face a minimum 30 per cent tax for assets held over 12 months. The reforms also include limitations on negative gearing for established residential property, restricting it to new builds, though properties held before 12 May 2026 will be grandfathered. In response to these shifts, the Australian Industry Group (Ai Group) has raised concerns regarding the innovative business capital gains tax concession (IBCC). While the government intends to broaden the concession to protect startup investors from the 30 per cent minimum tax, industry leaders warn that companies pivoting their business models away from purely ‘innovative’ activities could see their shares disqualified from the carve-out, leading to higher tax liabilities. ## Timeline ### 2026-09-28: Megaport secures $978.6 million in new AI infrastructure contracts Megaport has signed three AI infrastructure contracts worth nearly $979 million, leading to upgraded FY27 revenue guidance and a significant boost to its annual recurring revenue. 3 sources. https://clstr.news/cluster/australian-business-concerns-rise-over-cgt-changes-and-tech-sector-growth ### 2026-09-14: Australia to implement CGT reform and indexation in July 2027 Australia will replace the 50% CGT discount with cost base indexation on 1 July 2027, affecting individuals, trusts, and partnerships through a time-based transitional valuation system. 2 sources. https://clstr.news/cluster/australia-to-implement-cgt-reform-and-indexation-in-july-2027 --- Cite as: Australian capital gains tax reform. CLSTR, https://clstr.news/situations/australian-capital-gains-tax-reform