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Capital Gains Tax Calculator — UK Tax Calculator

UK Tax Calculator

Capital Gains Tax Calculatorfocused tool2026/27 · Take-home & tax
Equity

Capital Gains Tax Calculator

Work out the Capital Gains Tax on your shares and other assets, after the annual exempt amount — and the net gain you keep.

Capital Gains Tax · what you'd owe
Capital Gains Tax due

£0

The first £3,000 of gains each year is tax-free (the annual exempt amount). The rest is taxed at 18% within your remaining basic-rate band and 24% above it — for shares and other assets.
Add a capital gain
Enter a capital gain in Settings to see the tax broken down by rate.
What-if: a different gain

£0

£0CGT on a £0 gain

Common questions

Quick answers for the 2025/26 tax year. For guidance only — not financial advice.