UK Capital Gains Tax Calculator

For 2025/26, CGT rates are 18% (basic rate) and 24% (higher rate) for all chargeable assets, including residential property, shares, and crypto. Rates on shares and other assets rose from 10%/20% to 18%/24% for disposals on or after 30 October 2024. The rate you pay depends on your total taxable income and gains.

The annual exempt amount for 2025/26 is £3,000 (reduced from £6,000 in 2023/24 and £12,300 before that). This means the first £3,000 of capital gains each tax year is tax-free. Each individual has their own exemption.

CGT on property is calculated on the gain (sale price minus purchase price minus allowable costs). Allowable costs include solicitor fees, estate agent fees, stamp duty paid on purchase, and the cost of improvements (but not maintenance). Your main home is usually exempt under Private Residence Relief.

No, your main home (principal private residence) is usually exempt from CGT under Private Residence Relief. However, CGT may apply if you have let part of it out, used part exclusively for business, have grounds over 5,000 square metres, or were absent for extended periods.

For property disposals, you must report and pay CGT within 60 days of completion using the HMRC CGT on UK property service. For other assets, you report through your Self Assessment tax return. If you don't usually file a return, you may need to register.

No. Capital gains tax is reserved to Westminster, not devolved, so CGT rates and the £3,000 annual exempt amount are the same across England, Scotland, Wales, and Northern Ireland. For a Scottish taxpayer, whether the basic or higher CGT rate applies is set by the UK-wide higher-rate threshold of £50,270, not by the Scottish income tax bands.

Yes, capital losses can be offset against gains in the same tax year. If losses exceed gains, you can carry them forward indefinitely to use against future gains. You must report losses to HMRC within 4 years of the end of the tax year to carry them forward.

Allowable costs include: purchase price, buying costs (solicitor, surveyor), selling costs (estate agent, solicitor), improvement costs that enhance the asset's value (e.g., extensions, not repairs), and stamp duty paid on purchase. You cannot deduct mortgage interest or maintenance costs.