60% Tax Trap Calculator (£100k–£125,140)

What is the 60% tax trap?

If you earn between £100,000 and £125,140 in 2026/27, you are caught in what most people call the 60% tax trap. It is one of the quietest and most expensive quirks in the whole UK tax system, and the frustrating part is that nobody writes to tell you about it. You simply get a payslip or a tax bill that feels far worse than you expected, and you are left wondering why a pay rise seemed to vanish.

The cause is the way your tax-free personal allowance is gradually taken away once your income climbs above £100,000. For every £2 you earn over that line, you lose £1 of your personal allowance. Because that lost allowance was money you would otherwise have kept tax-free, the effect is that each extra pound of salary in this band is taxed twice over: once as normal income and once through the disappearing allowance. The combined result is an effective marginal rate of 60% in England, Wales and Northern Ireland, and around 67.5% for higher earners in Scotland.

The good news, and the reason this page exists, is that the trap is avoidable. With a little planning, usually through a pension contribution or Gift Aid donation, you can pull your income back below the danger zone and keep far more of what you earn. Use the calculator on this page alongside the explanation below, and you will see exactly where you stand.

Who the 60% tax trap affects

This band catches a surprisingly broad group of people. In my experience advising clients, it is rarely the obviously wealthy who get stung. It is far more often someone who has worked hard for a promotion, picked up a bonus, or had a strong year of self-employed profit, and suddenly finds themselves just over £100,000 without realising what that threshold does.

You are likely to be affected if you are:

• An employee whose salary, plus a bonus, tips you over £100,000.
• A company director taking a mix of salary and dividends where total income crosses the line.
• A self-employed person or sole trader whose profits land in the £100,000 to £125,140 range.
• A landlord whose rental profits, added to other income, push total adjusted net income over the threshold.
• Anyone with a one-off spike in income, such as a redundancy payment, share vesting or a large freelance project.

The figure that matters is not your salary alone but your adjusted net income. That is your total taxable income from all sources, before personal allowances are applied, minus a few specific deductions such as gross pension contributions and Gift Aid donations. Two people on the same salary can be in completely different positions depending on what else they earn and what they pay into a pension. If you want to sense-check the wider picture of your earnings, the income tax calculator and the take home pay calculator are good companions to this tool.

How the personal allowance taper works in 2026/27

The standard personal allowance for 2026/27 is £12,570. That is the slice of income you can earn before any income tax is due at all. The taper begins the moment your adjusted net income passes £100,000. For every £2 above £100,000, you lose £1 of allowance. By the time your income reaches £125,140, the entire £12,570 allowance has gone, which is exactly why the trap ends at that figure (£100,000 plus twice £12,570).

Here is the heart of the maths. Inside that £25,140 band, each extra £100 of income is taxed at the 40% higher rate, costing £40. At the same time, you lose £50 of personal allowance, and that £50 then becomes taxable at 40%, costing a further £20. Add the £40 and the £20 together and you have paid £60 in tax on £100 of income. That is the 60% effective rate in plain terms.

The table below shows the key 2026/27 figures for England, Wales and Northern Ireland.

Scotland is harsher because the relevant Scottish tax band is charged at 45% rather than 40%. The lost allowance is taxed at 45%, so the combined effect is roughly 67.5% rather than 60%. If you live north of the border, the Scotland tax calculator will give you the precise picture for your income, and the broad strategy of reducing your adjusted net income still applies.

How a pension contribution restores your allowance

This is where it gets genuinely cheering. A gross personal pension contribution reduces your adjusted net income pound for pound. So if you are sitting just inside the trap, paying into a pension can drag your income back below £100,000 and hand you back the personal allowance you were losing.

Because of that double benefit, money you put into a pension while in this band effectively gets 60% relief. You are getting the usual higher rate relief plus the restored allowance. There are very few moments in tax planning where a single, simple action does this much good, and it is the first thing I check for any client hovering around £100,000. To understand the mechanics of relief in more detail, see our guide to pension tax relief explained and the pension tax relief calculator.

Gift Aid donations work in the same way. A charitable gift made under Gift Aid also reduces your adjusted net income, so a donation to a cause you care about can, at the same time, restore part of your allowance. It is one of the rare cases where generosity and tax efficiency point in exactly the same direction.

Worked example one: Priya, the bonus that backfired

Priya is a marketing director in Manchester. Her base salary is £95,000, and this year she received a £12,000 bonus, taking her total income to £107,000. She was delighted until her payslip showed the bonus had been hit far harder than she expected.

Her income is £7,000 over the £100,000 line. She therefore loses £3,500 of personal allowance (£7,000 divided by 2). That lost allowance becomes taxable, and the £7,000 itself is taxed at 40%. On that slice of income she effectively pays 60% tax, so of the top £7,000, roughly £4,200 goes to HMRC.

Priya decides to pay £7,000 gross into her pension. This reduces her adjusted net income back to £100,000, restores the £3,500 of allowance she was losing, and means the whole £7,000 contribution attracts that 60% effective relief. Instead of seeing most of her bonus disappear in tax, she has turned it into pension savings at a remarkably low real cost. If she wants to model the take-home effect of a bonus before it lands, the bonus tax calculator is the place to start.

Worked example two: Tom, the self-employed spike

Tom is a self-employed consultant who usually earns around £90,000. He landed a major contract this year and his profits jumped to £118,000. As a sole trader, all of that profit counts towards his adjusted net income.

Tom is £18,000 into the trap. He loses £9,000 of personal allowance, and his effective rate on income in this band is 60%. By making a gross pension contribution of £18,000, he brings his adjusted net income back to £100,000, recovers the full £9,000 of allowance, and saves a substantial sum in tax while building his retirement pot. He needs to keep an eye on the pension annual allowance calculator to make sure the contribution stays within his limit, which I will come to next. Because Tom files through self assessment, he can also check timings with the self assessment tax calculator.

The pension annual allowance: the important caveat

Pension contributions are powerful, but they are not unlimited. The standard annual allowance for 2026/27 is £60,000, covering your own contributions, any employer contributions and the tax relief added (you can read more on GOV.UK). You can also normally contribute no more than your total UK relevant earnings in the year. For very high earners, a separate tapered annual allowance may reduce the £60,000 figure, and there is scope to carry forward unused allowance from the previous three tax years.

In practice, most people caught in the 60% tax trap have plenty of headroom, because the contribution needed to escape the band is usually well within £60,000. But it is always worth checking before you act. If you exceed your allowance, an annual allowance charge can claw back the relief, which rather defeats the purpose. The pension annual allowance calculator will help you stay on the right side of the limit.

Common mistakes people make

Over the years I have seen the same avoidable errors again and again. Watch out for these:

• Confusing salary with adjusted net income. Savings interest, dividends, rental profit and benefits in kind all count. Someone on a £96,000 salary with £8,000 of dividends is firmly in the trap.
• Leaving it too late. A pension contribution must usually be made within the tax year (by 5 April) to count against that year's income. Plan before the year ends, not after.
• Forgetting to claim the relief. Higher rate and additional rate relief on personal pension contributions is often claimed through your tax return or by contacting HMRC. It does not always land automatically.
• Ignoring the knock-on effects. Crossing £100,000 also affects access to the tax-free childcare and the 15 or 30 free hours of childcare schemes for parents of young children, which makes escaping the trap even more valuable for some families.
• Assuming the tax code is right. HMRC often does not adjust your code correctly when your income changes, so you can end up over or underpaying. The tax code calculator and our guide to tax codes explained are worth a look.

How to use the 60% tax trap calculator

The calculator is designed to take the guesswork out of all this. Here is the simplest way to use it:

• Enter your total expected income for 2026/27, including salary, bonus, self-employed profit, rental income, dividends and savings interest.
• The tool works out your adjusted net income and shows whether you are inside the £100,000 to £125,140 band.
• It calculates how much personal allowance you are losing and the effective rate you are paying on income in the trap.
• You can then enter a pension contribution figure to see how much income you need to redirect to escape the trap, and what that saves you.

Seeing the numbers laid out tends to be the moment it clicks for people. A contribution that felt like locking money away suddenly looks like one of the best returns available anywhere.

Your next steps

If the calculator shows you are in the trap, do not panic. You usually have until 5 April to act, and the fix is straightforward. Work out the contribution needed to bring your adjusted net income to £100,000, check it sits within your annual allowance, and speak to your pension provider or employer about making it. If you also give to charity, consider doing so under Gift Aid.

For the wider context, our guide to the personal allowance explained covers the taper in full, and the UK income tax rates and bands for 2026/27 guide sets out where every band sits. You can also confirm the official figures on the GOV.UK income tax rates page and read HMRC's own explanation of pension tax relief on GOV.UK. If your circumstances are complex, for example you are subject to the tapered annual allowance, it is genuinely worth a short conversation with an accountant.

A quick word of reassurance: the 60% tax trap is not a penalty and you have done nothing wrong by earning more. It is simply a design feature of the system that rewards anyone who understands it. A little planning turns a painful tax bill into a healthier pension and real long-term gain.

The figures on this page are for the 2026/27 tax year and are intended as general guidance, not personal advice. Your own position depends on all of your income and circumstances, so please check the details with HMRC or a qualified accountant before acting. Tax rules and thresholds can change.