The 60% Tax Trap 2026/27, visualised

What exactly is happening

The UK Personal Allowance is £12,570 — the first £12,570 of income is tax-free. But from £100,000 onwards, HMRC reduces that allowance by £1 for every £2 earned. By £125,140 the allowance is gone entirely (£12,570 × 2 = £25,140 — the trap width).

The arithmetic of the trap: each additional £1 of salary triggers 40p of higher-rate Income Tax plus 50p of lost PA that is now taxed at 40% (= 20p). So the total bite on the next £1 is 60p. Add 2% Employee NI above the £50,270 UEL and you're at 62p per £1 — 62% marginal rate, before any student loan deductions.

Above £125,140 the taper ends and the PA stays at £0. Marginal rate drops to 42% (40% IT + 2% NI) until the Additional Rate threshold, also at £125,140, pushes it to 47%. The result: a counterintuitive "cliff down" from 62% to 47% at exactly £125,140.

Who it catches hardest

The 60% trap disproportionately affects mid-career professionals who crossed £100k via a promotion or bonus. HMRC estimates roughly 1.3 million UK taxpayers had income over £100,000 in the most recent survey year — the top ~4% of earners. Common profiles caught:

• Senior engineers / managers with base £110k-£125k + equity
• Consultants on £95k base + bonus that pushes total over £100k
• GP partners and senior NHS clinicians with on-call/bonus top-ups
• Solicitors 5PQE+ at regional firms or 3PQE+ at magic-circle
• Finance / contractor inside-IR35 day rates above £500/day

For most of these, a strategic pension sacrifice restores the full allowance and boosts retirement wealth — the cheapest route to HRT-rate relief available in the UK system.

FAQ

What is the UK 60% tax trap?

Between £100,000 and £125,140 of taxable income, HMRC reduces your Personal Allowance by £1 for every £2 you earn. That lost allowance then gets taxed at the 40% higher rate, so the "next £1" you earn in the trap costs you 60p in Income Tax alone — a 60% effective marginal rate on top of any NI and student loan. It applies across England, Wales and Northern Ireland. Scotland uses the same £100,000 threshold but with its own six-band Income Tax layered on top, producing an even higher effective marginal rate.

Why does the 60% only kick in between £100,000 and £125,140?

The Personal Allowance is £12,570 in 2026/27. £12,570 × 2 = £25,140 — the exact width of the tapering band. Once taxable income hits £125,140, the PA has been fully withdrawn (PA = 0), the taper stops, and your marginal rate drops back to 40% (plus NI). Above £125,140, the 45% Additional Rate begins.

Does the 60% trap include National Insurance?

Usually not in the headline figure. Class 1 Employee NI is 8% up to the Upper Earnings Limit (£50,270) and 2% above. So in the trap, NI adds ~2% on each extra pound — making the true marginal "take" closer to 62% on salary. If you have a student loan deducted (9% on Plan 1/2/4/5) the figure rises further. This calculator shows the income-tax-only rate to match the common "60% trap" framing.

How do I escape the 60% tax trap?

Pension contributions (salary sacrifice or relief-at-source via self-assessment) reduce your "adjusted net income" for Personal Allowance tapering. If you earn £120,000 and sacrifice £20,000 to your pension, your taxable income is £100,000 — full PA restored, no trap. Gift Aid donations and bonus deferral have similar effects. Check the pension contribution calculator for the exact break-even.

Is the trap worth avoiding or should I just accept it?

Every £1 contributed to a pension in the trap costs you 40p in take-home but avoids a further 20p loss from the taper — net gain of 60p on the pound kept in a tax-wrapped investment. For a 40-year-old on £110k with a decent employer match, that's one of the strongest tax-efficient decisions in the UK system. The trade-off: the money is locked until age 55, rising to 57 from 6 April 2028 under Finance (No. 2) Act 2023.

Does salary sacrifice save the 60% trap?

Yes — salary sacrifice reduces your gross salary before tax and NI, so if you sacrifice enough to bring gross below £100,000 the taper doesn't apply at all. It also saves Class 1 Employee NI (2% above UEL) AND Employer NI (15%) — ask your employer whether the 15% Employer NI saving is shared with you (many schemes add it straight into your pension).

What about the £125,140 'cliff' — does the marginal rate drop?

Counterintuitively, yes. Once you hit £125,140, the PA is gone and tapering stops, so your marginal rate drops from 60% back to 42% (40% + 2% NI). You then pay 47% on each additional pound above £125,140 where the Additional Rate kicks in. Between £125,140 and the next pay review, you're paying a lower marginal rate than you were at £120,000 — an oddity of the UK system.

Does this trap apply to Scotland?

Scotland applies the same £100,000 tapering threshold on the UK-wide £12,570 Personal Allowance, but layers its own six-band Income Tax over it. At £100k a Scottish taxpayer is already in the Advanced Rate (45%) band — not the 42% Higher Rate — so the marginal in the trap is higher than in England/Wales/NI: around 69.5% between £100,000 and £112,570 (45% IT + 22.5p taper effect + 2% NI), then ~74% between £112,570 and £125,140 where the 48% Top Rate kicks in. Use the salary calculator and tick the Scotland box to see the Scottish figures.