Guides & packs
The calculators and guides on this site are free. If you want the rules, deadlines and worksheets in one place, the Capital Gains Tax Survival Pack is a one-off £4.99 PDF.
General information, not personal tax advice. Questions or refunds: use the contact page.
Written and reviewed by James Whitfield and the UKCapitalGainsTaxCalculator editorial team.
Every figure is checked against current HMRC and GOV.UK guidance and reviewed for the 2026/27 tax year. We explain how the tax works in plain English with worked examples, not just numbers. Editorial standards · Sources · About us