The UK income tax system is progressive: different rates apply to different portions of your income, so only the money above each threshold is taxed at the higher rate. Understanding the bands is the foundation for working out your take-home pay — and for spotting where a pay rise, bonus or pension contribution has the biggest effect.
Income tax bands for 2025/26
For the 2025/26 tax year, the bands for England, Wales and Northern Ireland are:
| Band | Rate | Taxable income |
|---|---|---|
| Personal allowance | 0% | Up to £12,570 |
| Basic rate | 20% | £12,571 – £50,270 |
| Higher rate | 40% | £50,271 – £125,140 |
| Additional rate | 45% | Over £125,140 |
The personal allowance is not a band you pay 0% on in the technical sense — it is an amount of income that is simply not taxed at all. The “taxable income” in the table is what remains after that allowance is deducted.
How the bands work in practice
The most common misunderstanding is that crossing a threshold taxes all your income at the higher rate. It does not. Only the income above the threshold is taxed at the higher rate.
Take a £50,000 salary. Your taxable income is £50,000 − £12,570 = £37,430. That entire amount falls within the basic-rate band, so you pay 20% of it: £7,486. None of it is taxed at 40%.
Now take £60,000. Your taxable income is £47,430. The first £37,700 of that (the width of the basic-rate band) is taxed at 20%, and the remaining £9,730 is taxed at 40%:
- 20% × £37,700 = £7,540
- 40% × £9,730 = £3,892
- Total: £11,432
This is why higher-rate taxpayers do not lose 40% of their entire salary — only the top slice.
The personal allowance taper: the 60% tax trap
The single most important quirk in the UK tax system affects people earning between £100,000 and £125,140. Once your income exceeds £100,000, HMRC reduces your personal allowance by £1 for every £2 you earn above that threshold.
At £100,000 you still have the full £12,570 allowance. By £125,140 the allowance has gone entirely. The effect is that each extra £1 of income in this range is taxed at 40% and destroys 50p of your allowance, which itself would have been taxed at 40%. The combined effective marginal rate is 60%.
This is why pension contributions and salary sacrifice are so valuable at this level. Shelter income and you can restore the allowance, recovering far more than the contribution costs.
Scotland has its own rates
Scottish taxpayers pay income tax to the Scottish Government, not HMRC, and the structure is very different — six bands rather than three:
| Band | Rate | Taxable income |
|---|---|---|
| Starter | 19% | £12,571 – £15,397 |
| Basic | 20% | £15,398 – £27,491 |
| Intermediate | 21% | £27,492 – £43,662 |
| Higher | 42% | £43,663 – £75,000 |
| Advanced | 45% | £75,001 – £125,140 |
| Top | 48% | Over £125,140 |
The practical effect is that a Scottish taxpayer on £50,000 pays more income tax than someone in England on the same salary, because the 42% band starts at £43,663 rather than the UK’s 40% at £50,271. At lower salaries the difference is smaller, and at the very top it narrows again. Our calculators include a Scotland toggle so you can compare instantly.
What does not change in Scotland
National Insurance is not devolved. Scottish taxpayers pay the same Class 1 NI rates as the rest of the UK — 8% between £12,570 and £50,270 and 2% above. The personal allowance (£12,570) is also set UK-wide. Only the income tax rates and bands differ.
The thresholds are frozen
All the main thresholds — the personal allowance and the basic and higher rate limits — are frozen until at least 2028. Because wages typically rise each year while thresholds do not, more of the average salary is pulled into higher bands over time. Economists call this fiscal drag: a tax rise that happens without any announced rate change.
The effect compounds. A £50,000 salary that was comfortably basic rate in 2021 sees a larger share taxed at higher rates every year, purely because the threshold has not moved with inflation.
Reducing your income tax legally
There are several well-established ways to reduce the tax you pay, in rough order of impact:
- Pension contributions reduce your taxable income, attracting relief at your marginal rate. Salary sacrifice goes further and saves National Insurance as well.
- ISAs shelter investment returns from tax but do not reduce income tax on salary.
- Salary sacrifice schemes such as Cycle to Work and electric vehicle leasing reduce gross pay.
- Marriage Allowance lets some lower earners transfer £1,260 of allowance to a partner.
- Gift Aid on charitable donations extends the basic-rate band for higher-rate taxpayers.
Each has limits and eligibility rules, and the value depends on your marginal rate. The most effective single action for most higher-rate and taper-zone taxpayers is increasing pension contributions.
How to calculate your own tax
The fastest way is to use a calculator that applies the bands in order and shows the breakdown. Our take-home pay calculator does this for 2024/25, 2025/26 and 2026/27, including Scotland, pension contributions, student loans and salary sacrifice — so you can see precisely how each factor changes your net pay.
If you want to see how the frozen thresholds have affected you over time, use compare tax years. And if you would like the gross salary needed to reach a specific take-home figure, the required salary calculator works backwards.
Key takeaways
- Only income above each threshold is taxed at the higher rate, not your whole salary.
- The £100,000–£125,140 taper produces a 60% effective marginal rate.
- Scotland has six bands; National Insurance and the personal allowance are UK-wide.
- Frozen thresholds mean more of your pay is taxed at higher rates every year.
- Pension contributions, especially salary sacrifice, are the most effective lever for most people.