This calculator estimates UK Capital Gains Tax for 2026/27 on profits from selling shares or property, applying your annual exempt amount and the basic and higher CGT rates. Updated June 2026.
Capital Gains Tax Estimator (2026/27)
How it works
This is an estimate for 2026/27. We deduct the Annual Exempt Amount of £3,000 from your gain to get the taxable gain. Your taxable income uses up part of the basic-rate band first, so the remaining basic-rate band is £37,700 − (income − £12,570), floored at zero. The portion of the taxable gain within that remaining band is taxed at 18% and anything above it at 24% — these rates apply to both shares/other assets and residential property for disposals from 30 October 2024. A loss (gain ≤ 0) means no CGT is due.
FAQ
- What is the 2026/27 CGT allowance? The Annual Exempt Amount is £3,000. You only pay CGT on gains above this.
- What are the CGT rates for 2026/27? For disposals from 30 October 2024, gains within your remaining basic-rate band are taxed at 18% and gains above it at 24%, for both asset types.
- How does my income affect my CGT? Your taxable income uses the basic-rate band first; the gain that still fits within the remaining band is taxed at 18% and the rest at 24%.
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