Calculate Capital Gains Tax on property, shares and other assets for 2025/26.
Enter the disposal proceeds
Type the sale price you actually received (or market value if a gift or transfer between connected persons). Deduct selling costs like estate agent and legal fees.
Enter the original cost
Acquisition price plus any enhancement expenditure (extensions, improvements) and original buying costs (stamp duty, legal fees). For pooled shares, use the Section 104 average cost.
Pick the asset type
Residential property, shares, crypto, business assets or other. All disposals from October 2024 use the unified 18%/24% rates — but Business Asset Disposal Relief drops to 14% for qualifying business disposals.
Add your income and losses
Enter your total taxable income so the calculator can work out how much of the gain falls into basic vs higher rate. Add any brought-forward capital losses to offset the gain.
See the tax and reporting deadline
View the CGT bill, plus a reminder of the 60-day deadline for UK property or the 31 January Self Assessment deadline for everything else. Late filing penalties start at £100.
How to declare capital gains on your Self Assessment. Shares, crypto, second properties, the £3,000 annual exemption, 60-day property reporting, pooling rules and worked examples for 2025/26.
How a family business is valued and divided on divorce, and the Capital Gains Tax and Business Asset Disposal Relief pitfalls of transferring or selling shares as part of a settlement in 2026/27.
Transfers of shares between married couples and civil partners are treated as 'no gain, no loss' for Capital Gains Tax, letting couples double up their annual exempt amount and use each other's tax band. Here is how it works in 2026/27.
Disclaimer: All results are estimates for guidance only and do not constitute financial, tax or legal advice. Always consult a qualified professional.
