Uk Capital Gains Tax Allowance 2024/25. Since 6th april 2024, the uk’s capital gains tax allowance has been reduced from its previous rate. For the current tax year (2024/25), the cgt allowance is £3,000.

Capital gains tax (cgt) is normally charged at a simple flat rate of 20% and this applies to most chargeable gains made by individuals. This measure changes the capital gains tax (cgt) annual exempt amount (aea).