Capital Gains Tax Calculator
Estimate CGT on residential property and listed shares for UK individuals. Supports PPR, BADR, and income band interaction.
Last reviewed:
Guidance, not advice. We explain the rules, we don't assess your situation. Always seek financial or tax advice from your accountant, or contact HMRC. Read our editorial scope →
Estimates only – not tax advice. For planning purposes only; does not replace professional advice or official HMRC calculations. Full disclaimer
Settings
Income This Year
Salary, self-employment, property income, etc.
Disposals
CGT Summary
£0
Total Capital Gains Tax
How it works
Full mode calculates CGT taking into account your total income to determine remaining basic rate band space.
Gains fill this space first (at lower CGT rates), then any excess is taxed at higher rates.
PPR (Private Residence Relief) reduces chargeable gains on property you've lived in.
BADR (Business Asset Disposal Relief) qualifying gains are taxed at a flat 10%.
Important Limitations
Share identification rules: This calculator does not handle same-day, 30-day 'bed and breakfasting', or Section 104 pooling rules. All share disposals are treated as if matched simply for the year.
BADR: Modelled as a simple 10% rate on flagged qualifying gains. The £1m lifetime cap is not tracked in this version.
PPR: Treated as a user-supplied exempt percentage. The calculator does not compute qualifying occupation periods.
Scotland: Scottish income tax band structure affects CGT band calculations but is not currently modelled. Results use rest-of-UK band structure.
Also try our Dividend Tax Calculator or Salary vs Dividend Optimizer