Yes, you do pay more tax if you earn over £50,000, but only on the slice of income above £50,270, where the rate jumps from 20% to 40%. Everything you earn below that line is taxed exactly as it was before. A pay rise that takes you past the threshold will always leave you with more money in your pocket, not less.
The bigger picture is worth getting straight before looking at the numbers, because the fear that crossing a bracket wipes out a raise is the single most common misunderstanding of the UK system.
Only the Income Above £50,270 Is Taxed at 40%
The UK taxes income in layers. The first £12,570 is covered by the personal allowance and is tax-free. Earnings from £12,571 to £50,270 fall into the basic rate band at 20%. Only income above £50,270 hits the 40% higher rate.1GOV.UK. Income Tax Rates and Personal Allowances
So earning £51,000 doesn’t mean 40% tax on the whole salary. The higher rate applies to £730. The rest of the income is taxed as it always was. Your effective rate (total tax divided by total income) stays well below your marginal rate — around 14.7% at £51,000, and about 17.1% at £55,000.
Here’s what the maths looks like on a £55,000 salary:
- First £12,570: no tax (personal allowance)
- £12,571 to £50,270 (£37,700): taxed at 20% = £7,540
- £50,271 to £55,000 (£4,730): taxed at 40% = £1,892
- Total income tax: £9,432
That’s an effective tax rate of about 17.1%, nowhere near the 40% headline figure. The higher rate only bites on the top £4,730.
The higher rate threshold has been frozen at £50,270 since 2021/22 and stays there for the 2025/26 tax year.1GOV.UK. Income Tax Rates and Personal Allowances Because wages have risen while the threshold has not, more workers now find themselves straddling the line each year.
National Insurance Drops at Roughly the Same Point
The upper earnings limit for employee National Insurance sits alongside the income tax higher rate threshold. For 2025/26, employees pay 8% on weekly earnings between £242 and £967 — roughly £12,570 to £50,270 annually. Above the upper earnings limit, the NI rate falls to 2%.2GOV.UK. National Insurance Rates and Categories – Contribution Rates
That drop softens the jump to 40% income tax. Below the threshold, your combined marginal rate is 28% (20% tax plus 8% NI). Above it, the combined rate is 42% (40% tax plus 2% NI). So the real increase in what you lose from each extra pound is 14 percentage points, not 20. Still a noticeable step, but nothing like the doubling that the headline rates suggest.
Your Savings Allowance Halves
Basic rate taxpayers get a £1,000 personal savings allowance, so the first £1,000 of bank or building society interest each year is tax-free. Once you become a higher rate taxpayer, the allowance drops to £500.3GOV.UK. Tax on Savings Interest – How Much Tax You Pay
If you hold meaningful cash savings, this matters. Take someone with £40,000 in an account paying 4%, generating £1,600 in interest a year. As a basic rate taxpayer, £1,000 is sheltered and £600 is taxed at 20%, costing £120. As a higher rate taxpayer, only £500 is sheltered and £1,100 is taxed at 40%, costing £440. That’s a £320 difference — a small but real extra cost of crossing the threshold.
You Lose Marriage Allowance
If your spouse or civil partner earns less than the personal allowance, they can transfer £1,260 of their unused allowance to you through marriage allowance. You only qualify while you’re a basic rate taxpayer. Once your income tips into the higher rate band, you lose eligibility.4GOV.UK. Marriage Allowance – How It Works The annual saving is £252, so crossing £50,270 means losing that on top of paying the higher rate.
Child Benefit: The Threshold Is Now £60,000, Not £50,000
Worth clearing up because the old rule is still lodged in a lot of people’s heads. The High Income Child Benefit Charge used to start biting at £50,000, but from 6 April 2024 the threshold rose to £60,000.5GOV.UK. High Income Child Benefit Charge If neither you nor your partner earns more than £60,000, the charge doesn’t apply and you keep the full child benefit. A salary of £52,000 or £55,000 no longer triggers it.
Above £60,000, you repay 1% of your child benefit for every £200 of income over the threshold, and the benefit is fully clawed back once either partner’s individual income reaches £80,000. The higher-earning partner pays the charge, even if the other partner receives the payments. You can settle it through PAYE or via self-assessment.5GOV.UK. High Income Child Benefit Charge
Scotland Sets Its Own Rates
If you live in Scotland, the answer looks different, because income tax on earnings is set by the Scottish Parliament. Scotland uses six bands, and the higher rate starts at £43,663 rather than £50,270. For 2025/26:6GOV.UK. Income Tax in Scotland – Current Rates
- 19% starter rate: £12,571 to £15,397
- 20% basic rate: £15,398 to £27,491
- 21% intermediate rate: £27,492 to £43,662
- 42% higher rate: £43,663 to £75,000
- 45% advanced rate: £75,001 to £125,140
- 48% top rate: above £125,140
A Scottish taxpayer on £50,000 is already several thousand pounds into the higher rate band, and that rate is 42% rather than 40%. National Insurance is the same across the UK because it is reserved to Westminster.
Pension Contributions Can Pull You Back Under
Pension contributions are the most effective way to manage your position around the threshold. Contributions made through salary sacrifice come out of your pay before income tax and NI are calculated, cutting your taxable income directly. Personal pension contributions get basic rate relief automatically, and higher rate taxpayers can claim the extra 20% through their tax return.
The effect can be substantial. Earn £55,000 and put £5,000 into your pension through salary sacrifice, and your taxable income drops to £50,000, back inside the basic rate band. You avoid 40% tax on that £5,000, save on the NI rate difference, and the money goes into your retirement pot instead of to HMRC. The same lever works for child benefit: pension contributions reduce your adjusted net income, so someone earning just over £60,000 can bring themselves back below the line and keep their full entitlement.
If your salary is sitting close to £50,270, it’s worth running the numbers on pension contributions before assuming a raise is worth less than it looks. In most cases the extra pay still beats staying under the line — but the choice is yours to make deliberately, and the tools to shift where you land are already in the system.