UK Capital Gains Tax Calculator
🏠 Free ToolCalculate your 2024/25 UK Capital Gains Tax on shares, property, and other assets. Includes the £3,000 annual exempt amount and income-based rate determination.
| Band | Rate | Gain | Tax |
|---|---|---|---|
| Annual Exempt Amount | 0% | £3,000 | £0.00 |
| Basic Rate | 10% | £10,270 | £1,027.00 |
| Higher Rate | 20% | £16,730 | £3,346.00 |
How it Works
Capital Gains Tax in the UK applies when you sell or dispose of an asset that has increased in value. For the 2024/25 tax year, the annual exempt amount has been reduced to just £3,000 — a significant drop from £12,300 only two years ago. This means more people than ever will be liable for CGT on asset disposals.
The CGT rate you pay depends on two factors: your total taxable income and the type of asset. Shares and other non-property assets are taxed at 10% (basic rate) or 20% (higher rate). Residential property disposals attract higher rates of 18% and 24% respectively. Your gains are stacked on top of your income to determine which rate applies.
Several important exemptions exist. Your principal private residence is normally fully exempt from CGT, as are assets held within ISAs. Transfers between spouses and civil partners are also CGT-free, which creates legitimate planning opportunities to use both partners’ annual exempt amounts and basic rate bands.
This calculator takes your capital gain, annual income, and asset type to determine your exact CGT liability. It shows the split between basic and higher rate portions and your effective tax rate on the total gain.
Frequently Asked Questions
What is the CGT annual exempt amount for 2024/25?
The annual exempt amount is £3,000 for 2024/25, reduced from £6,000 the previous year. This means the first £3,000 of capital gains in a tax year are tax-free.
What are the CGT rates for 2024/25?
For shares and other assets: 10% for basic rate taxpayers and 20% for higher/additional rate taxpayers. For residential property: 18% for basic rate and 24% for higher/additional rate. Your rate depends on your total taxable income plus gains.
How does my income affect my CGT rate?
Your capital gains are added on top of your taxable income. If your income plus gains stays within the basic rate band (up to £50,270), you pay the lower CGT rate. Any gains that push you into the higher rate band are taxed at the higher CGT rate.
Are there any CGT exemptions?
Your main home (principal private residence) is exempt from CGT. ISA investments, gilts, premium bond winnings, and assets transferred between spouses/civil partners are also exempt. Losses can be offset against gains.
When do I need to report and pay CGT?
For property disposals, you must report and pay within 60 days of completion. For other assets, report gains on your Self Assessment tax return by 31 January following the end of the tax year.