UK Capital Gains Tax Calculator 2025

Estimate your Capital Gains Tax (CGT) for 2025–26 on property, shares, crypto, investments and other assets using the latest HMRC rates and allowances.

UK Capital Gains Tax Calculator

Estimate your Capital Gains Tax (CGT) for the 2025/26 tax year based on sale value, costs, and tax rate band.

For illustration only — not official financial advice.

Ready
Gain Before Tax £0.00
Taxable Gain £0.00
Capital Gains Tax Payable £0.00
Detail Value
Sale Price £0.00
Purchase Price £0.00
Allowable Costs £0.00
Annual Allowance Used £0.00
Final Tax Payable £0.00

 

Capital Gains Tax Rates 2025–26

Explore more UK tax tools including VAT Calculator, Income Tax Calculator and Stamp Duty Calculator.

Annual Exempt Amount Tax-Free Allowance
Annual CGT Allowance £3,000 2025–26
CGT Rates for Shares, Crypto and Investments
Taxpayer Type CGT Rate
Basic Rate Taxpayer 10%
Higher and Additional Rate 20%
CGT Rates on Residential Property
Taxpayer Type CGT Rate Property
Basic Rate Taxpayer 18%
Higher and Additional Rate 24%

Private residence relief applies to your main home. For full guidance, visit the official HMRC Capital Gains Tax page.

How Capital Gains Tax Works

Capital Gains Tax applies when you sell or dispose of assets that have increased in value. You only pay tax on the profit, not the total sale amount.

  • Gain = Sale price – Purchase cost – Allowable expenses.
  • Annual exempt amount £3,000 reduces your taxable gain.
  • Different tax rates apply to property vs shares and investments.
  • Your Income Tax band determines which CGT rate applies.
  • You can use capital losses to reduce your taxable gain.

This calculator applies all tax bands, allowances and property surcharges automatically.

Capital Gains Tax Examples

Shares – £10,000 Gain
  • Tax-free allowance £3,000
  • Taxable gain £7,000
  • Basic rate £700 tax
  • Higher rate £1,400 tax
Crypto – £20,000 Gain
  • Taxable gain after allowance £17,000
  • Basic rate £1,700 tax
  • Higher rate £3,400 tax
Second Home – £50,000 Gain
  • Taxable gain after allowance £47,000
  • Basic rate £8,460 tax
  • Higher rate £11,280 tax

Frequently Asked Questions

Usually no — private residence relief applies if the property was your only or main home throughout the ownership period.

Yes — shares and investments use 10% and 20% while residential property uses 18% and 24%.

This UK Capital Gains Tax Calculator uses official HMRC CGT rates for 2025–26 for property, shares, crypto and other assets. View all tools on our TaxCalcUK Sitemap.