Capital Gains Tax on a £50,000 Gain 2026/27
After the £3,000 annual exempt amount, a basic-rate taxpayer (£35,000 other income) owes £10,364 CGT on a £50,000 gain. A higher-rate taxpayer (£55,000 other income) owes £11,280.
At £50,000 two things change. The taxable gain of £47,000 is bigger than the whole £37,700 basic-rate band, so even with no other income £9,300 is charged at 24%. And because the gain alone is £50,000, the value of what you sold is more than £50,000 too, which brings in the capital gains pages for anyone who files a tax return.5
Which rate does a £50,000 gain pay at different incomes?
| Other income | Band left | At 18% | At 24% | CGT |
|---|---|---|---|---|
| £20,000 | £30,270 | £30,270 | £16,730 | £9,463.80 |
| £35,000 | £15,270 | £15,270 | £31,730 | £10,363.80 |
| £45,000 | £5,270 | £5,270 | £41,730 | £10,963.80 |
| £55,000 | £0 | £0 | £47,000 | £11,280 |
With no income the bill is £9,018; on £20,000 it is £9,463.80; on £35,000, £10,363.80; at £55,000, £11,280. The gap between no income and £55,000 is £2,262, the most the 6-point rate gap can ever be worth to one person in a year: £37,700 of band at 6%.1
The next £1,000 costs £240 at £20,000 of income and £240 at £35,000, because the band is already full. The only way to bring any of this gain back to 18% is a bigger band, through a pension contribution, or a second person's band, through a spouse.
Can you pay less on a £50,000 gain?
| Option | CGT | Saving |
|---|---|---|
| Sell it all in 2026/27 | £11,280 | - |
| Half before 6 April 2027, half after | £10,560 | £720 |
| Half given first to a spouse with no income | £9,240 | £2,040 |
| Half given first to a spouse earning £35,000 | £9,643.80 | £1,636.20 |
| £10,000 gross pension contribution | £10,963.80 | £316.20 |
| £20,000 gross pension contribution | £10,363.80 | £916.20 |
Spreading the sale over two tax years
Selling over two tax years saves £1,636.20 on £35,000 and £720 on £55,000. For the £35,000 seller both halves now overflow the band, so the saving is fixed at a second allowance plus a second slice of band. It will not grow with the gain.
Giving half to a spouse or civil partner
A spouse with no income saves £2,040 and a spouse on £35,000 £1,636.20. If the shares are already held jointly, each of you is taxed on your own half automatically: a couple on £35,000 each pays £8,727.60 in total, instead of the £10,363.80 one owner would pay.
Pensions, ISAs and reliefs
A pension contribution saves at most £916.20 at £20,000 gross for a higher-rate seller.2 The bigger question at this size is whether a relief reduces the gain itself: Private Residence Relief if the property was ever your home, or Business Asset Disposal Relief if it is a qualifying business.6
Reporting and paying the tax
Proceeds above £50,000 mean anyone filing a tax return completes the capital gains summary.5 For a 2026/27 sale of shares that return is due online by 31 January 2028, with the tax.3 For UK residential property, report and pay within 60 days of completion, and still include the sale on your tax return.4
Your own figures: use the full calculator → for your sale price, costs, losses and income.
CGT on other gain amounts
Frequently asked questions
Does a £50,000 gain make me a higher-rate taxpayer?
Not for income tax: your salary is taxed the same. For CGT, though, £9,300 of the gain is above the basic-rate band even with no income, so that part is taxed at 24%.
Do I need to file a tax return for a £50,000 gain?
Not necessarily. If you are UK resident and it is not UK residential property, the real-time service lets you report by 31 December 2027 and pay by 31 January 2028 instead. If you already file Self Assessment, it goes on your return.
What is CGT on £50,000 for a couple?
If the gain is split equally between spouses who each earn £35,000, each half leaves £22,000 taxable and the household pays £8,727.60, against £10,363.80 if one of them owned it all.
Figures from our calculator engine, 7 November 2026. Guidance only, not advice.
Sources & references
The rates, allowances and rules in this guide are drawn from the official HMRC and GOV.UK sources below, checked for the 2026/27 tax year. Each link opens the relevant government page in a new tab.
- Capital Gains Tax: rates www.gov.uk/capital-gains-tax/rates
- Finance Act 2004, section 192: relief at source (basic rate limit increased by the contribution) www.legislation.gov.uk/ukpga/2004/12/section/192
- Report and pay CGT: if you have other capital gains to report www.gov.uk/report-and-pay-your-capital-gains-tax/if-you-have-other-capital-gains-to-report
- Report and pay CGT: if you sold a UK property on or after 6 April 2020 www.gov.uk/report-and-pay-your-capital-gains-tax/if-you-sold-a-property-in-the-uk-on-or-after-6-april-2020
- Self Assessment: Capital Gains summary (SA108) and notes www.gov.uk/government/publications/self-assessment-capital-gains-summary-sa108
- Business Asset Disposal Relief www.gov.uk/business-asset-disposal-relief