UK Income Tax 2025-26: Rates, Allowances and How to Pay Less

Most people in the UK pay more income tax than they need to. Not because they are doing anything wrong, but because they have not claimed everything they are entitled to. The difference between a basic rate and higher rate taxpayer can be thousands of pounds a year, just from knowing which allowances to use. If you want to skip straight to the numbers, our UK income tax calculator works out your tax and take-home pay in seconds. But it helps to understand what is going on first.

The UK tax bands for 2025-26

Income tax in England, Wales and Northern Ireland works in slices. Everyone starts with a tax-free personal allowance of £12,570. After that, your income is taxed in bands set by HMRC, and only the money inside each band is taxed at that band's rate.

• Personal allowance: £12,570, taxed at 0%.
• Basic rate: 20% on the next £37,700 (income from £12,571 to £50,270).
• Higher rate: 40% on income from £50,271 to £125,140.
• Additional rate: 45% on income above £125,140.

There is a trap hidden in those numbers. Once you earn more than £100,000, your personal allowance shrinks by £1 for every £2 you earn. By £125,140 it is gone entirely. That means the slice of income between £100,000 and £125,140 is effectively taxed at 60%, because you lose tax-free allowance at the same time as paying 40% on the income itself. Anyone earning in that range should look hard at pension contributions to dip back under £100,000.

One thing to watch: the £12,570 personal allowance and the £50,270 higher rate threshold are both frozen until April 2031. The freeze was extended again at the Autumn Budget 2025, so as wages rise more of your income gets dragged into tax, and more of it into the higher rate, even though the rates themselves have not moved. The National Insurance Upper Earnings Limit is frozen at the same £50,270 until April 2031 too. The full detail is in the GOV.UK policy paper on the threshold freeze to April 2031.

National Insurance sits on top

Income tax is only half the story. Employees also pay National Insurance, which funds the state pension and some benefits. For 2025-26 and 2026-27, you pay nothing up to £12,570, then 8% on earnings between £12,570 and £50,270, and 2% on anything above £50,270.

Add the two together and the picture sharpens. At £50,000 your final pound of salary attracts 20% income tax and 8% NI, a combined 28% marginal rate. Push past £50,270 and the income tax rate jumps to 40%, but the NI rate drops to 2%, so the combined marginal rate becomes 42%. Knowing your marginal rate matters, because it tells you exactly how much a pay rise, or a pension contribution, is really worth.

Scotland plays by different rules

If you live in Scotland, your income tax is set by the Scottish Parliament and looks quite different. For 2026-27 there are six bands rather than three: a 19% starter rate, a 20% basic rate, a 21% intermediate rate, a 42% higher rate, a 45% advanced rate and a 48% top rate. Scottish taxpayers on higher salaries generally pay more income tax than someone on the same salary in England.

National Insurance and the personal allowance are reserved to Westminster, so those stay the same wherever you live. Our UK income tax calculator has a Scotland setting that applies the Scottish bands while keeping NI correct, so you can see the real difference for your salary.

Legal ways to cut your income tax bill

Here is the part most people skip, and it is where the real money is. None of this is aggressive avoidance. It is using reliefs that the government built into the system on purpose.

Pension contributions. Every £1 you put into a pension is £1 less of taxable income. For a higher rate taxpayer, a £1,000 contribution can cost as little as £600 after tax relief. The annual allowance is up to £60,000 for most people, and pension contributions are the single most effective tool for anyone flirting with the £100,000 allowance taper.

ISA allowance. You can put £20,000 a year into an ISA, where the interest, dividends and capital gains all grow completely free of tax. It does not reduce your income tax this year, but it shelters your savings from tax forever, which matters more the longer you invest.

Marriage allowance. If one partner earns less than £12,570 and the other is a basic rate taxpayer, the lower earner can transfer £1,260 of their personal allowance to their spouse. That is worth up to £252 a year, and you can backdate a claim by up to four years.

Gift aid. Charity donations made through gift aid extend your basic rate band, which is genuinely valuable for higher rate taxpayers. Donate £100 with gift aid and you can claim back the difference between the basic and higher rate on your return.

How PAYE actually works

If you are employed, you almost never hand money to HMRC yourself. Your employer deducts income tax and NI before you are paid, through Pay As You Earn. The amount is driven by your tax code, and the most common code is 1257L, which simply reflects the standard £12,570 allowance.

The thing to watch is whether your code is right. If it is wrong, perhaps because of an old company benefit or a job change, you could be quietly overpaying tax all year, or building up a bill. Check your code on your payslip against your circumstances, and if the take-home figure on your payslip does not match what our calculator shows, that is worth investigating.

Who needs to file a Self Assessment

Most employees never file a tax return. But you do need to register for Self Assessment if you are self-employed, earn over £100,000, receive significant rental or investment income, have foreign income, or need to pay the High Income Child Benefit Charge. The deadline for an online return is 31 January after the end of the tax year, and missing it brings an automatic £100 penalty.

If you have a side business alongside your job, keep good records from day one. The tax on that income depends on your overall marginal rate, so it stacks on top of your salary, not on its own.

A worked example at £60,000

Numbers make the bands click. Take someone in England earning £60,000 in 2025-26. They get the full £12,570 personal allowance tax-free. The next £37,700 is taxed at 20%, which is £7,540. That takes us to £50,270, and the remaining £9,730 of salary falls into the higher rate band at 40%, adding £3,892. Their total income tax is £11,432.

National Insurance then applies on top. They pay 8% on earnings between £12,570 and £50,270, which is £3,016, and 2% on the £9,730 above £50,270, which is £195. That is £3,211 of NI. Add it to the income tax and the total deductions come to £14,643, leaving a take-home of £45,357, or about £3,780 a month. A £5,000 pay rise from here would be taxed at 40% plus 2% NI, so only £2,900 of it would actually reach their account.

Student loans come off too

If you graduated with a student loan, repayments are deducted alongside tax and NI once your income passes the plan threshold. Plan 2 graduates repay 9% of income above £28,470, Plan 1 above £26,065, and the postgraduate loan takes 6% above £21,000. These are not interest payments you choose, they come straight off your pay, so they reduce take-home just like tax does.

It is worth knowing your plan, because someone with both an undergraduate and a postgraduate loan can lose 15% of their income above the thresholds to repayments alone, on top of income tax and NI. Our calculator includes every student loan plan, so the take-home figure it shows already accounts for them.

Work out your own numbers

Tax rules are easier to grasp when you see them applied to your salary. Plug your figures into the UK income tax calculator to see your income tax, National Insurance, any student loan and your final take-home pay, for England, Wales or Scotland. If you are also buying a home, our stamp duty calculator handles that cost too, and the international calculator compares pay across countries if you are weighing a move. Everything runs in your browser, so your salary details never leave your device.

This is general information, not tax advice. Rates and thresholds can change, and your own position depends on your circumstances. Check the official figures at gov.uk or speak to a qualified accountant before acting.