How Much Can I Earn Before Paying 40% Tax in the UK?

In England, Wales, and Northern Ireland, you can earn up to £50,270 a year before paying 40% tax in the UK. That figure is your £12,570 tax-free Personal Allowance plus the £37,700 basic rate band. Only the pounds above £50,270 are taxed at 40%, never your whole salary. Scotland works differently: the higher rate there is 42% and starts at £43,663.¹

How the £50,270 Threshold Is Built

UK income tax is progressive. Your income passes through each band in turn, and only the portion sitting inside a band is taxed at that band’s rate. The first £12,570 you earn is covered by the Personal Allowance and taxed at 0%.¹ The next £37,700 is taxed at the 20% basic rate.² Add those together and you get £50,270, the point at which the 40% higher rate takes over.

So if you earn £55,000, only the £4,730 above £50,270 is taxed at 40%. The first £12,570 stays tax-free and the middle £37,700 stays at 20%. Your effective rate across the whole salary is well under 40%.

A third band applies above £125,140: the 45% additional rate.¹ Both the Personal Allowance and the higher rate threshold have been frozen since April 2021, and the government has confirmed they will stay frozen until at least April 2031.³ As wages rise, more people are pulled across the £50,270 line each year.

Wales has had the power to set its own income tax rates since 2019, but for 2026/27 Welsh rates and thresholds match England and Northern Ireland exactly.⁴

Scotland’s Higher Rate Kicks in Earlier

Scotland sets its own income tax rates and bands under powers granted by the Scotland Act 2016.⁵ The Scottish system uses more bands, and the higher rate arrives sooner and at a steeper percentage. For 2026/27:

Starter rate of 19% from £12,571 to £16,537
Basic rate of 20% from £16,538 to £29,526
Intermediate rate of 21% from £29,527 to £43,662
Higher rate of 42% from £43,663 to £75,000
Advanced rate of 45% from £75,001 to £125,140
Top rate of 48% above £125,140

A Scottish taxpayer enters the equivalent of the “40% bracket” roughly £6,600 earlier than someone elsewhere in the UK, and pays 42% rather than 40% on that slice.⁶ The £12,570 Personal Allowance still applies, and it still tapers away above £100,000 in the same way.⁷

The Hidden 60% Rate Between £100,000 and £125,140

The 40% figure isn’t the whole picture once your income climbs past £100,000. From that point, you lose £1 of Personal Allowance for every £2 you earn, and the allowance disappears entirely at £125,140.¹ The lost allowance falls into the 40% band, so each extra pound triggers 40p of tax on itself plus another 20p on the 50p of vanishing allowance. The effective marginal rate in this zone is 60%.

Above £125,140 the allowance is gone and the marginal rate settles back to 45%.² The 60% band is one of the strongest reasons to consider pension contributions or Gift Aid donations if your income sits in that range, because either can bring adjusted net income back below £100,000 and restore the full allowance.

What Counts Toward the Threshold

Almost all of your income feeds the calculation. Salary, bonuses, overtime, and commission are the main sources.⁸ Self-employed trading profits, rental income, and most private pension payments count too. HMRC groups these as “non-savings, non-dividend income” when deciding which band you fall into.

Savings interest and dividends run through their own allowances but still use up your tax bands. A basic rate taxpayer gets a £1,000 Personal Savings Allowance; a higher rate taxpayer gets £500. Dividends have a separate £500 tax-free allowance regardless of band, and dividends above it are taxed at 33.75% for higher rate taxpayers.⁹

Ways to Push the Threshold Higher

The £50,270 line isn’t as fixed as it looks. Certain payments effectively widen your basic rate band so the 40% rate starts later.

Pension Contributions

If your workplace pension uses the relief-at-source method, where contributions come from after-tax pay and the provider claims back basic rate tax, your basic rate band is extended by the gross value of your contribution. Contribute £4,000 from take-home pay, the provider tops it up to £5,000 by reclaiming 20% relief, and your basic rate band stretches by £5,000. The 40% rate then wouldn’t start until £55,270.² You claim the additional 20% of higher rate relief through your tax return or by contacting HMRC.

Salary sacrifice works differently. Your employer reduces your contractual pay before tax and pays the equivalent into your pension. Because your taxable salary is genuinely lower, there is no band extension, but you also save on National Insurance.

Gift Aid Donations

Gift Aid extends the basic rate band the same way as relief-at-source pension contributions.¹⁰ Donate £800 under Gift Aid, the charity claims £200 of basic rate relief, and your basic rate band widens by £1,000. The extra 20% higher rate relief comes back through your tax return.

Both routes are especially valuable in the 60% zone between £100,000 and £125,140, where a well-timed contribution can restore the full Personal Allowance and save far more than the headline rate suggests.

Income Tax and National Insurance Together

Income tax is only one deduction. Employees also pay Class 1 National Insurance at 8% on earnings between £242 and £967 a week, roughly £12,570 to £50,270 a year.¹¹ Above £50,270, the NI rate drops to 2%.

Combined, the real deduction rate on salary between £12,570 and £50,270 is 28% (20% tax plus 8% NI). Above £50,270 it’s 42% (40% tax plus 2% NI). Between £100,000 and £125,140, where the Personal Allowance taper kicks in, the combined marginal rate reaches 62%. These are the numbers to weigh when a pay rise or a pension decision is on the table.

A Nearby Threshold Worth Knowing: Child Benefit

Crossing £50,270 isn’t the only income line that matters. If you or your partner claim Child Benefit and either individual has adjusted net income above £60,000, the higher earner faces the High Income Child Benefit Charge. You repay 1% of the Child Benefit for every £200 above £60,000, and at £80,000 you owe back the full amount.¹²

The charge is based on individual income, not household income. If both partners earn £59,000, no charge arises. If one earns £70,000 and the other nothing, the higher earner owes it. Pension contributions and Gift Aid both reduce adjusted net income for this purpose, so the same moves that push back the 40% threshold can also cut the Child Benefit clawback.

1
GOV.UK. Income Tax Rates and Personal Allowances
2
GOV.UK. Income Tax Rates and Allowances for Current and Previous Tax Years
3
GOV.UK. Income Tax: Maintaining the Personal Allowance and the Basic Rate Limit
4
GOV.UK. Income Tax in Wales
5
Scottish Fiscal Commission. Scottish Income Tax
6
gov.scot. Scottish Income Tax 2026 to 2027 Technical Factsheet
7
GOV.UK. Income Tax in Scotland
8
HM Revenue & Customs. Employment Income Manual – EIM00520
9
GOV.UK. Tax on Dividends
10
GOV.UK. Chapter 3 – Gift Aid
11
GOV.UK. Rates and Allowances – National Insurance Contributions
12
GOV.UK. High Income Child Benefit Charge