Free UK Capital Gains Tax Calculator 2026 – Estimate Your CGT Bill

Find out exactly how much Capital Gains Tax you’ll pay in the 2026 tax year. Our free UK CGT calculator covers property, shares, business assets, and more. Includes the £3,000 annual exempt amount, Business Asset Disposal Relief, and all 2026 tax rates. Get an instant estimate of your capital gains tax liability.

Home / UK Capital Gains Tax Calculator 2026 – Estimate Your CGT Bill

🏦 Capital Gains Tax Calculator UK 2026 🇬🇧 estimates

Different asset types have different CGT rates and reliefs
The amount you sold the asset for
What you originally paid for the asset
Costs that increased the asset's value
Estate agent, legal fees, stamp duty etc.
This helps determine whether you pay basic or higher rate CGT
2026 Annual Exempt Amount is £3,000 for most individuals
Losses carried forward from previous tax years
Check all reliefs that apply to your situation
⚠️ Disclaimer: This calculator provides estimates based on 2026 UK Capital Gains Tax rules. It does not constitute professional advice. Actual tax liability depends on individual circumstances, reliefs, and allowances. For accurate computation, contact our accountant or place an order for specialist advice tailored to your situation.
2026 tax year · CGT Annual Exempt Amount £3,000 · 18% / 24% (property) · 10% / 20% (other assets)