The 60% Tax Trap Explained: How High Earners Lose Their Personal Allowance (and How to Avoid It) — 2026/27
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Earning between £100,000 and £125,140? The 60% tax trap quietly taxes every extra pound at around 60%. Here is the maths, who it hits, and how to escape it for 2026/27.
If you earn between £100,000 and £125,140 in the 2026/27 tax year, you may be quietly handing over far more of every extra pound than the headline tax bands suggest. Welcome to the "60% tax trap" — one of the most punishing quirks in the UK tax system, and one that catches a growing number of higher earners every year. This guide explains exactly what the trap is, the maths behind it, who it hits, the knock-on effects, and the practical steps you can take to escape it.
What is the 60% tax trap in the UK?
The 60% tax trap is the effective marginal tax rate that applies to income between £100,000 and £125,140. It is not a separate official tax band — you will not find "60%" written anywhere on the GOV.UK tax tables. Instead, it is the combined effect of two things happening at once:
- You pay 40% higher-rate income tax on income in this band (England, Wales and Northern Ireland).
- At the same time, your tax-free Personal Allowance is gradually withdrawn ("tapered") once your income passes £100,000.
Because the allowance is being clawed back as you earn more, each extra pound of income is effectively taxed twice — once directly, and once indirectly through the loss of tax-free allowance. The result is a stealthy effective rate of around 60% on income in this band. For many people researching high earner tax UK issues, this is the single biggest surprise in their tax position.
The maths of the Personal Allowance taper at £100k
For 2026/27 the standard Personal Allowance is £12,570 — the amount of income you can receive each year before paying any income tax. However, this allowance is not guaranteed for everyone.
The rule for the personal allowance taper £100k is simple to state: your Personal Allowance is reduced by £1 for every £2 of income above £100,000. The relevant measure is your "adjusted net income" — broadly your total taxable income after certain deductions such as pension contributions and Gift Aid.
Because £12,570 of allowance is removed at a rate of £1 per £2, it takes £25,140 of income above £100,000 to wipe it out completely (£12,570 × 2 = £25,140). That is why the Personal Allowance is fully lost at £125,140 of income. Above that point there is no allowance left to lose, and the effective rate falls back towards the normal 40% (and then 45% additional rate above £125,140).
How does losing my personal allowance affect my tax rate?
This is the crucial question. When you ask how does losing my personal allowance affect my tax rate, the answer is that it inflates your real (marginal) rate well above the 40% on the tin. Here is a worked example of earning an extra £1,000 while your income sits inside the £100,000–£125,140 band.
Suppose your income rises from £110,000 to £111,000 — an extra £1,000 of gross income:
- You pay 40% income tax on that £1,000 = £400.
- The extra £1,000 of income reduces your Personal Allowance by £500 (the £1-for-every-£2 rule). That £500 of previously tax-free income now becomes taxable at 40%, costing an extra £200.
- Total tax on the extra £1,000 = £400 + £200 = £600.
So you keep just £400 of a £1,000 pay rise — an effective marginal rate of 60%. Once you add employee National Insurance (charged at 2% above the upper earnings limit on employment income), the effective rate nudges a little higher still, to roughly 62%. You can model your own figures with our 60% tax trap calculator or check the bigger picture with the income tax calculator.
The marginal rate band at a glance
| Income band (2026/27) | Headline income tax | Personal Allowance effect | Effective marginal rate* |
|---|---|---|---|
| £50,271 – £100,000 | 40% | No taper | ~40% |
| £100,000 – £125,140 | 40% | Allowance withdrawn £1 per £2 | ~60% (≈62% with NI) |
| £125,141 and above | 45% | Allowance already fully lost | ~45% (≈47% with NI) |
*Effective rates are illustrative for England, Wales and Northern Ireland and assume standard circumstances.
Who does the 60% tax trap hit?
The trap catches anyone whose adjusted net income falls between £100,000 and £125,140. In practice that includes:
- Employees pushed over £100,000 by a pay rise, bonus, or share awards vesting.
- Company directors taking a mix of salary and dividends.
- Self-employed people and landlords whose profits cross the threshold.
- People with one-off income spikes — for example a large bonus, redundancy payment above the tax-free element, or investment gains taxed as income.
Crucially, the £100,000 threshold has been frozen for years rather than rising with inflation. That "fiscal drag" means many more people are being pulled into the band each year, even though £100,000 buys far less than it once did. If you are anywhere near the threshold, it is worth understanding the trap before it costs you.
The knock-on effects beyond income tax
The 60% headline rate is only part of the story. Crossing £100,000 of adjusted net income can trigger several other cliff-edges that make the effective cost of earning even higher — particularly for parents.
Loss of free childcare and Tax-Free Childcare
Government childcare support in England is generally only available where neither parent has adjusted net income above £100,000. Going over the threshold can mean losing:
- Tax-Free Childcare — worth up to £2,000 per child per year (up to £4,000 for a disabled child).
- Funded "free" childcare hours for eligible working parents of younger children.
For a family with two children in nursery, losing these can be worth thousands of pounds. Combined with the 60% income tax effect, a modest pay rise that nudges you over £100,000 can leave you genuinely worse off overall.
Personal Savings Allowance shrinks
Becoming a higher-rate (40%) taxpayer also halves your Personal Savings Allowance from £1,000 to £500 of tax-free savings interest. If your income climbs above £125,140 into the additional-rate band, the Personal Savings Allowance disappears entirely. You can check where you stand with our personal savings allowance calculator.
High Income Child Benefit Charge
Although the Child Benefit charge now bites at higher income levels than the £100,000 trap, families receiving Child Benefit should still understand how their income interacts with it. Our Child Benefit tax calculator can help you see the combined picture.
What is the 60% tax trap in the UK and how do I avoid it?
The good news: because the taper is based on adjusted net income, you can often reduce or eliminate the trap by legitimately lowering that figure back towards (or below) £100,000. The three main tools are pension contributions, salary sacrifice, and Gift Aid.
1. Pension contributions
Personal pension contributions reduce your adjusted net income pound for pound (within annual allowance limits). If your income is £110,000 and you contribute £10,000 (gross) to a pension, your adjusted net income falls to £100,000 — restoring your full Personal Allowance. Because of the 60% effective rate, a £10,000 pension contribution in this band can effectively cost you only around £4,000 in lost take-home pay, with the rest funded by tax relief. That is one of the most powerful uses of pension tax relief available. Model it with our pension tax relief calculator.
2. Salary sacrifice
With salary sacrifice you formally give up part of your gross salary in exchange for an employer pension contribution (or another benefit). This lowers your taxable salary and your adjusted net income, and can also save National Insurance for both you and your employer. See how much you could keep using the salary sacrifice calculator.
3. Gift Aid donations
Gift Aid donations to charity also reduce your adjusted net income for the purpose of the Personal Allowance taper. As with pensions, this means a charitable gift made while inside the trap is effectively topped up by very generous tax relief, so giving costs you far less than the headline amount.
Other points to weigh
- Time bonuses or one-off income carefully across tax years where possible.
- Keep evidence of pension and Gift Aid payments so they are correctly reflected in your Self Assessment.
- Remember the annual pension allowance and tapered allowance rules apply to very high earners — do not over-contribute without checking.
A note for Scotland
The Personal Allowance is set UK-wide, so the taper between £100,000 and £125,140 applies in Scotland too. However, Scottish income tax rates differ, and the higher and advanced/top rates are higher than 40%. This means the effective marginal rate inside the trap in Scotland is even steeper. If you are a Scottish taxpayer, use a Scotland-specific income tax tool to see your exact position.
Frequently asked questions
What is the 60% tax trap in the UK and how do I avoid it?
The 60% tax trap is the effective marginal tax rate on income between £100,000 and £125,140, caused by paying 40% income tax while losing £1 of Personal Allowance for every £2 earned over £100,000. The most common ways to avoid it are making personal pension contributions, using salary sacrifice, or making Gift Aid donations — all of which reduce your adjusted net income back towards £100,000 and can restore your Personal Allowance.
How does losing my personal allowance affect my tax rate?
Losing your Personal Allowance does not change the official tax bands, but it raises your real (marginal) rate. As your allowance is withdrawn, previously tax-free income becomes taxable at 40%, on top of the 40% you already pay on the extra earnings. The combined effect is roughly a 60% effective rate on income between £100,000 and £125,140.
How does the personal allowance taper at £100k work?
For 2026/27 the Personal Allowance is £12,570. It is reduced by £1 for every £2 of adjusted net income above £100,000. Because £12,570 of allowance is removed at £1 per £2, the allowance is fully gone once income reaches £125,140.
At what income is the Personal Allowance fully lost?
The Personal Allowance is fully lost once your adjusted net income reaches £125,140 in 2026/27. Above that level there is no allowance left to taper, and the additional rate of 45% begins to apply.
Do pension contributions really help with the 60% tax trap?
Yes. Personal pension contributions reduce your adjusted net income, which is the figure used for the taper. Contributing enough to bring your adjusted net income down to £100,000 restores your full Personal Allowance, meaning the contribution attracts effective tax relief of around 60% inside the trap (subject to pension annual allowance limits).
Useful GOV.UK resources
Disclaimer: This article is general information about UK tax for the 2026/27 tax year and is not personal financial or tax advice. Tax rules depend on your individual circumstances and can change. Consider speaking to a qualified accountant or financial adviser before making decisions.
Laura Michelle Davis — Chartered Tax Adviser (CTA)
ACCA · CTA (Chartered Tax Adviser) · ATT · BSc Economics, UC Berkeley
Laura Michelle Davis is a Chartered Tax Adviser (CTA) who also holds the ACCA and ATT qualifications and a BSc in Economics from UC Berkeley. She specialises in UK personal tax — income tax, National Insurance, self-employment and capital gains — and has built her career making complicated rules easy to follow. At TaxFly, Laura writes and edits the tax guides and explainers, checking that figures reflect current HMRC rates and that every explanation answers the question a real person is actually asking. Her goal is plain-English clarity you can trust and act on.
