Uk Capital Gains Tax Free Allowance 2024/25. Capital gain tax calculator for ay 2024 25 image to u, how to use the capital gains tax calculator (2024/25):. Basic rate taxpayers pay 10% tax on chargeable gains in tax year 2024/25.

 — this measure changes the capital gains tax (cgt) annual exempt amount (aea). For the 2024 to 2025 tax year the allowance is £3,000, which leaves £9,600 to pay tax on.