UK Capital Gains Tax Calculator 2026
Calculate CGT on property and shares instantly. See spouse transfer savings, optimize your tax position, and understand your true liability.
Asset Type
CGT rates are now 18%/24% for all asset types from April 2025
Purchase & Sale Details
£
£
Quick presets (sale price):
Allowable Costs
Deduct legitimate expenses to reduce your gain
Your Tax Position
CGT rate depends on your income tax band
£
£0Basic Rate (18% CGT)£200k
£
This reduces your remaining £3,000 annual allowance
Capital Gains Tax to Pay
£18,164
Effective rate: 22.70%
Gross Gain£80,000
Net Gain£80,000
Less: Annual Exemption-£3,000
Taxable Gain£77,000
Tax Breakdown
£17,215
18% (Basic Rate)
£5,270 @ 18%
24% (Higher Rate)
£71,730 @ 24%
Spouse Transfer Opportunity
If jointly owned, you'd pay £17,444 instead of £18,164.
Save £720 with joint ownership
60 Day Reporting Rule
UK property sales must be reported and CGT paid within 60 days of completion.
CGT Rates 2025/26
Basic Rate Taxpayers
Income up to £50,270
18%
Applies to gains that fall within your remaining basic rate band.
Higher/Additional Rate Taxpayers
Income above £50,270
24%
Applies to gains once your income plus gains exceed the basic rate threshold.
Annual Exempt Amount: Everyone gets a £3,000 tax-free allowance. Married couples and civil partners can each use their own allowance, giving £6,000 combined when assets are jointly owned.