There Is No 60% Tax Band — That’s Exactly Why It Hurts

There is no 60% income tax band in the UK. Look at the headline rates and you will see 20%, 40%, 45% — and, in Scotland, a different set of numbers altogether. Yet for a chunk of earners between £100,000 and £125,140, the marginal cost of each extra pound of salary really does land near 60%. The band is a ghost. The bill is not.

This is the £100,000 tax trap, and it is one of the few pieces of UK tax policy that manages to be both boring and brutal. It does not arrive with a letter from HMRC. It arrives as a smaller-than-expected pay rise, a personal allowance that quietly disappears, and a nagging sense that your accountant is enjoying this more than you are.

The trap is a taper, not a tax rate

The mechanics are simple enough. Everyone gets a personal allowance — currently £12,570 — that is taken out of your income before tax. Once your adjusted net income passes £100,000, that allowance is withdrawn at a rate of £1 for every £2 you earn above the threshold. By £125,140, it has gone completely.

That taper is what creates the effective 60% rate. For every £2 of extra salary in that zone, you lose £1 of allowance. The extra £2 is taxed at 40%, and the lost £1 of allowance is also taxed at 40%. Add it up and you are paying £1.20 of tax on £2 of income — 60%. Before National Insurance. Before student loan repayments. Before anything else that wants a slice.

The result is a stretch of income where a pay rise can feel like a punishment. A £10,000 bump from £100,000 to £110,000 does not leave you £6,000 better off after income tax. It leaves you closer to £4,000, depending on your exact circumstances. The tax system is not just taking a bigger share. It is taking a bigger share while denying it has a special rate for the privilege.

That is why the £100,000 line matters. It is not a cliff edge in the way the old 50p rate was. It is a slope — but a steep, slippery one that catches people who simply get a decent bonus or a promotion.

Why salary sacrifice is the cleanest lever left

If you are in that zone, the most obvious fix is to reduce your taxable salary. Salary sacrifice does exactly that. You agree to give up part of your gross pay in exchange for a pension contribution. Because the sacrifice happens before income tax and National Insurance, the money goes into your pension without the usual deductions.

For someone in the taper zone, the numbers can be striking. Sacrificing £10,000 of salary can save roughly £6,000 in income tax alone, plus National Insurance. It can also restore some or all of your personal allowance, depending on how far above £100,000 you were. The pension gets the full contribution. You get a lower taxable income. HMRC gets less. Everyone except the taxman has a reasonable day.

This is why pension providers love the £100,000 trap. It turns a tax problem into a marketing opportunity. But the attraction is not just the tax relief. It is the cleanliness. Unlike complicated expense claims or offshore arrangements that require a small army of advisers, salary sacrifice is a payroll setting. Your employer either offers it or it does not. If it does, the paperwork is usually a form and a conversation with HR.

That said, clean does not mean costless. The money is locked away until your late fifties at the earliest. If you need cash for a house deposit, school fees or a business, salary sacrifice is not a magic wand. It is a trade: liquidity today for tax efficiency tomorrow.

Where the obvious answer breaks down

The first complication is the annual allowance. Most people can put up to £60,000 a year into a pension and get tax relief, but high earners face a taper of their own. Once adjusted income passes £260,000 — and threshold income passes £200,000 — the annual allowance starts to shrink, eventually falling to £10,000. If you are already near those levels, a large salary sacrifice can push you into a much smaller allowance than you expected.

That does not make salary sacrifice useless at higher incomes. It makes it a maths problem. Carry-forward rules may give you extra room from earlier years. Employer contributions may eat into the allowance too. The clean fix becomes a spreadsheet, and the spreadsheet needs to be right.

The second complication is employer National Insurance. Salary sacrifice saves your employer money as well as you. Some employers pass their saved employer NI back into your pension as an extra contribution. Others keep it. That difference can be worth thousands of pounds a year, and it is rarely advertised in big flashing letters.

If your employer recycles the NI saving, salary sacrifice looks even better. If it does not, the deal is still usually attractive for a 60% taxpayer — but it is not the no-brainer the pension ads imply. Ask the question. The answer tells you whether your employer is sharing the gain or simply banking it.

The bits nobody puts on the brochure

There are other trade-offs. Salary sacrifice reduces your contractual pay, which can affect mortgage affordability, life cover, redundancy payments and some benefit entitlements. It cannot take you below the National Minimum Wage. And if you are planning to retire early or need flexible access to cash, tying more money into a pension may be the opposite of what you need.

Then there is the withdrawal question. Salary sacrifice gives you tax relief now, but pension income is taxed later. If you expect to be a basic-rate taxpayer in retirement, the arithmetic is compelling. If you expect to be a higher-rate taxpayer with a large pension pot, the advantage narrows. The trap is not just about what you save. It is about what you eventually pay.

The £100,000 line is a planning prompt, not a moral test

The £100,000 tax trap is not a secret. It is in the manuals. But it is easy to miss because it does not look like a tax rate. It looks like a taper, a threshold, a line on a tax return. That is precisely why it catches people who are busy getting on with their lives.

Salary sacrifice is one of the few clean fixes left. It is not perfect. It is not free. And it does not suit everyone. But for a UK earner in that strange, ghostly 60% zone, it is often the difference between a pay rise that mostly goes to HMRC and one that mostly goes to your future self.

Just do the maths before you sign. The taxman is counting on you not to.