RUV Calculator
RUV CalculatorUK Capital Gains Tax Calculator 2026https://calc.ruvlabs.com/c/capital-gains-tax-global/united-kingdom

UK Capital Gains Tax Calculator 2026

Nine countries, four different methods

Tax

After Tax
Effective Rate
60,000 GBP
40,000 GBP
Advanced options
30,000 GBP
Breakdown
Gain
Taxable Gain
Country Name
Local Name

Gains stack on top of your income to find the band. The first £3,000 each year is exempt. Holding period does not change the rate.

Under United Kingdom rules the tax is £3,060.00, leaving £16,940.00.

Capital Gains Tax in the United Kingdom: how gains on shares are taxed

In the United Kingdom gains are stacked on top of your taxable income. The part that still fits inside the basic rate band — the first £37,700 of taxable income — is taxed at 18%, and the rest at 24%. Taxable income is income minus the £12,570 personal allowance, which cannot be used against gains. The first £3,000 of gains each year is tax-free. The holding period does not change the rate.

Gains stack on top of your income to find the band. The first £3,000 each year is exempt. Holding period does not change the rate.

RuleThe United Kingdom
Gains within the £37,700 basic rate band18%
Gains above it24%
Annual exempt amount£3,000
Personal allowance (income only)£12,570

Why your other income changes the tax

The same gain costs more once your income has used up the basic rate band: at £50,270 of income there is no room left at 18%.

GainTax with £12,570 incomeTax with £31,420 incomeTax with £50,270 income
£5,000£360£360£480
£20,000£3,060£3,060£4,080
£100,000£21,018£22,149£23,280

How the calculation works — Capital Gains Tax by Country

Frequently asked questions

What is the capital gains tax rate on shares in the United Kingdom?

18% on the part of the gain that fits in the basic rate band and 24% above it.

Is there a tax-free allowance for capital gains in the United Kingdom?

Yes: the first £3,000 of gains each year.

Does the holding period matter in the United Kingdom?

No. The rate is the same whether you held the shares for a day or a decade.

How much tax is due on a £20,000 gain in the United Kingdom?

£3,060 if your income is £12,570, £3,060 at £31,420 and £4,080 at £50,270.

Sources

Official documents the rates and rules on this page come from.

Capital Gains Tax by Country

Capital Gains Tax by Country — by country

This is a reference calculation using common investment assumptions and is not a substitute for professional advice. We accept no liability for decisions made from it — see the terms of use for details.