UK Capital Gains Tax Calculator
- Gain
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- Taxable gain
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- CGT due
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2026/27 — AEA £3,000. Rates: other 18%/24%; residential 18%/24%. Gain stacked on top of income to decide basic vs. higher band.
About this tool
UK Capital Gains Tax Calculator is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
Category: Tax & Government — UK. Browse more Tax & Government — UK tools.