Rates updated for 2025/26 tax year
Capital Gains Tax Calculator
Free UK CGT calculator for property, shares and crypto. Enter your figures and see your tax breakdown instantly — including the £3,000 annual allowance.
18% Basic rate·24% Higher rate·£3,000 Annual allowance
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Used to determine your CGT rate band
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Other CGT gains already realised in 2025/26
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2025/26 Rates: 18% (basic rate) · 24% (higher rate) · £3,000 annual allowance
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Your CGT breakdown will appear here instantly
Capital Gains Tax Rates 2025/26 — What Changed?
The October 2024 Autumn Budget made significant changes to CGT rates. For shares, crypto, and most other assets, the basic rate rose from 10% to 18% and the higher rate from 20% to 24%, effective 30 October 2024. For residential property, the higher rate was cut from 28% to 24% while the basic rate remained at 18%. The annual CGT allowance stays at £3,000 — down from £12,300 in 2022/23.