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How Capital Gains Tax Will Affect Property Values in Sydney, Australia

Capital gains tax does not directly set a property's value, but Australia's 2026 reforms may shift Sydney investor demand towards new housing and change owners' after-tax returns.

TL;DR Capital gains tax does not directly change a Sydney property's market valuation. It changes an owner's after-tax return when a taxable property is sold, which can indirectly influence investor demand, holding periods and the types of projects buyers prefer. From 1 July 2027, Australia's 50% CGT discount is scheduled to be replaced for most assets by inflation-based cost-base indexation and a minimum 30% tax on real gains. Main residences remain generally exempt, while qualifying new residential supply receives more favourable options than established investment property. Does capital gains tax directly reduce a property's value? No. A valuer, buyer or lender does not normally subtract the seller's future CGT bill from the property's market value. Market value is based on what informe…