UK Capital Gains Tax Calculator
Calculate CGT on property, shares, and investments with current UK rates and allowances
Updated for Tax Year 2025/26
How much profit have you made on your investments?
Only include profit on investments you've disposed of (e.g. sold or transferred to someone else), or plan to dispose of, this tax year. Subtract any allowable losses.
What is your total annual income (before tax)?
For example salary, dividends, other income.
Estimated Capital Gains Tax due: £0.00
Important information - This calculator is not personal advice and should not be relied on for settling a tax bill. Calculations are based on tax rules which apply as at 21 March 2025 and based on rates and allowances for individual investors in the 2025/2026 tax year. It assumes no other taxable gains are made, no allowable losses are carried forward from previous years and does not consider reliefs such as Business Asset Disposal Relief. It does not cover capital gains from carried interest. Tax rules can change, and benefits depend on your circumstances.
UK Capital Gains Tax Information 2025/26
Key CGT Rates & Allowances
- Annual Exempt Amount: £3,000
- Shares (basic rate): 10%
- Shares (higher rate): 20%
- Property (basic rate): 18%
- Property (higher rate): 24%
- Business Asset Disposal Relief: 10%
Property CGT Reliefs
- Principal Private Residence Relief (main home)
- Last 9 months always qualify for relief
- Letting relief (up to £40,000)
- Non-resident property CGT (from 2015)
- Multiple property considerations
- Improvement costs vs repairs
Share CGT Rules
- Section 104 pooling for same companies
- Same day matching rules
- 30-day matching (bed & breakfast)
- ISA wrapper exemptions
- Dividend vs capital growth taxation
- Employee share scheme reliefs
Tax Planning Strategies
- Annual exemption utilisation
- Loss harvesting and carry forward
- Spouse/civil partner transfers
- Timing of disposals across tax years
- ISA vs taxable account strategies
- Pension vs ISA considerations