Capital Gains Tax Calculator (UK)
Includes annual exempt amount (£3,000) and splits gains across the remaining basic rate band automatically.
Your taxable income before the capital gain (salary, rents, dividends, etc.).
Sale price or market value if gifted.
Purchase price + buying costs.
Legal fees, agents, improvements, etc.
Defaults to £12,570. (This simple tool ignores tapering above £100k.)
Annual exempt amount: £3,000
Remaining basic band: £0
Gain before exemption
£0
Annual exempt amount used
£0
Taxable gain
£0
Tax at lower rate
£0 @ 18%
Tax at higher rate
£0 @ 24%
Estimated Capital Gains Tax
£0
Disclaimer:
This calculator provides an illustrative estimate of potential Capital Gains Tax (CGT) based on standard 2025/26 UK tax rates and allowances. It does not account for all individual circumstances such as losses, reliefs (e.g. Private Residence Relief, Lettings Relief, Business Asset Disposal Relief), tapering of allowances, or non-UK residency rules.
The calculation is for general guidance only and should not be relied upon as professional tax advice. Always seek tailored advice from a qualified accountant or tax adviser before making financial decisions.
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