If you've ever looked at your payslip and wondered exactly how your income tax is calculated, you're not alone. The UK tax system can feel complicated — but once you understand how the bands work, it becomes surprisingly logical. This guide breaks down every UK income tax band for 2025/26, with real salary examples, a plain-English explanation of the infamous 60% tax trap, and practical tips to reduce your bill legally.
What is Income Tax?
Income tax is the tax you pay on your earnings. In the UK, it applies to wages and salaries, self-employment profits, most pension income, rental income, and savings interest above your personal savings allowance.
The key thing to understand is that UK income tax is progressive and banded — often called a "slice" system. You don't pay the same rate on all your income. Instead, each portion of your income is taxed at the rate for that specific band only. Higher earnings don't push your lower earnings into a higher tax bracket.
UK Income Tax Bands for 2025/26
The following rates apply in England, Wales and Northern Ireland for the 2025/26 tax year (6 April 2025 to 5 April 2026):
| Band | Income | Tax Rate |
|---|---|---|
| Personal Allowance | Up to £12,570 | 0% |
| Basic rate | £12,571 to £50,270 | 20% |
| Higher rate | £50,271 to £125,140 | 40% |
| Additional rate | Above £125,140 | 45% |
Scotland has its own separate income tax rates — see the Scotland section below.
The Personal Allowance Explained
The personal allowance is the amount of income you can earn each year completely free of income tax. For 2025/26 it remains frozen at £12,570 — a figure that has been held at this level since April 2021 and is set to stay frozen until at least April 2028.
This freeze is sometimes called a "stealth tax" — because while the allowance hasn't technically been cut, inflation and wage growth mean more and more people are being pulled into higher tax bands over time, paying more tax in real terms without any rate change.
Your tax code reflects your personal allowance. The standard tax code for 2025/26 is 1257L, which represents the £12,570 allowance.
Who Gets the Full Personal Allowance?
Most UK residents receive the full £12,570 personal allowance. However it is reduced if:
- Your adjusted net income exceeds £100,000 — the allowance tapers by £1 for every £2 earned over £100,000
- You claim the Marriage Allowance (allowing you to transfer £1,260 to a lower-earning spouse)
- You have an incorrect or emergency tax code
Blind persons receive an additional allowance of £3,070 on top of the standard personal allowance.
How the Band System Works — A Real Example
Say you earn £60,000 in 2025/26. Here is exactly how your income tax is calculated:
- First £12,570 — Personal Allowance — £0 tax
- Next £37,700 (from £12,571 to £50,270) — Basic rate at 20% — £7,540 tax
- Remaining £9,730 (from £50,271 to £60,000) — Higher rate at 40% — £3,892 tax
- Total income tax: £11,432
- Effective tax rate: 19.1% (total tax ÷ gross income)
Notice that your effective rate (19.1%) is well below the 40% higher rate — because only the slice above £50,270 is taxed at 40%.
Real Salary Examples for 2025/26
| Salary | Income Tax | Effective Rate | Tax Band |
|---|---|---|---|
| £20,000 | £1,486 | 7.4% | Basic rate |
| £30,000 | £3,486 | 11.6% | Basic rate |
| £40,000 | £5,486 | 13.7% | Basic rate |
| £50,000 | £7,486 | 15.0% | Basic rate |
| £60,000 | £11,432 | 19.1% | Higher rate |
| £80,000 | £19,432 | 24.3% | Higher rate |
| £100,000 | £27,432 | 27.4% | Higher rate |
| £125,140 | £42,475 | 33.9% | Additional rate |
| £150,000 | £53,703 | 35.8% | Additional rate |
Use our free Take Home Pay Calculator to get your exact figures including National Insurance, student loan repayments and pension contributions.
The 60% Tax Trap — Explained Simply
One of the most unfair quirks of the UK tax system sits between £100,000 and £125,140. In this range, you face an effective marginal tax rate of 60% — not because there's a 60% band, but because of how the personal allowance is withdrawn.
Here's the mechanism: for every £2 you earn over £100,000, you lose £1 of your personal allowance. By the time you reach £125,140, your personal allowance has been completely withdrawn.
What does this mean in practice? Every extra £1 you earn in this range:
- Gets taxed at 40% (higher rate)
- AND removes 50p of personal allowance, which also becomes taxable at 40%
- Total effective tax: 40% + (50p × 40%) = 60p in every £1
How to Escape the 60% Tax Trap
The most effective strategies involve reducing your adjusted net income below £100,000:
- Salary sacrifice pension contributions — contributions made through salary sacrifice reduce your gross pay for tax purposes, potentially bringing income below £100,000
- Personal pension contributions — additional pension contributions qualify for tax relief and reduce your adjusted net income
- Charitable Gift Aid donations — extend your basic rate band and reduce adjusted net income
- Cycle to Work scheme and other benefits — salary sacrifice arrangements reduce gross pay
For someone earning £110,000, making £10,001 in pension contributions could save over £4,000 in additional tax compared to not contributing — while also building retirement wealth.
What About Scotland?
Scotland has its own income tax rates, set by the Scottish Parliament. For 2025/26 Scottish taxpayers pay:
| Band | Income | Rate |
|---|---|---|
| Personal Allowance | Up to £12,570 | 0% |
| Starter rate | £12,571 to £15,397 | 19% |
| Scottish basic rate | £15,398 to £27,491 | 20% |
| Intermediate rate | £27,492 to £43,662 | 21% |
| Higher rate | £43,663 to £75,000 | 42% |
| Advanced rate | £75,001 to £125,140 | 45% |
| Top rate | Above £125,140 | 48% |
Scottish taxpayers generally pay slightly more income tax than those in the rest of the UK on earnings above around £28,000, though they benefit from free prescriptions and other devolved services funded partly by this revenue.
How is Income Tax Collected?
For most employees, income tax is collected automatically through PAYE (Pay As You Earn). Your employer deducts tax from each payslip using your tax code, and the money goes directly to HMRC before you ever receive it.
If you're self-employed, have additional income from savings, investments or property, or earn over £100,000, you'll need to complete a Self Assessment tax return each year. The deadline for online returns is 31 January following the end of the tax year.
How to Pay Less Income Tax — Legally
There are several fully legitimate ways to reduce your income tax bill:
1. Maximise pension contributions. Money paid into a pension reduces your taxable income. Basic rate taxpayers get 20% tax relief, higher rate taxpayers get 40%, and additional rate taxpayers get 45% relief.
2. Use your ISA allowance. While ISA contributions don't reduce income tax, they shelter future investment returns and interest from tax entirely. Combined with pension saving, this is the most tax-efficient savings strategy available to UK residents.
3. Salary sacrifice arrangements. Pension, childcare vouchers, cycle to work and electric vehicle schemes all reduce your gross salary for PAYE purposes.
4. Claim Marriage Allowance. If one partner earns below £12,570 and the other is a basic rate taxpayer, you can transfer £1,260 of personal allowance — saving up to £252 per year.
5. Claim all allowable expenses. Self-employed workers can deduct legitimate business expenses from their taxable profits.
Frequently Asked Questions
How much income tax do I pay on a £30,000 salary?
On a £30,000 salary in 2025/26, you pay income tax of £3,486. This is calculated as 20% on the taxable portion: £30,000 minus the £12,570 personal allowance equals £17,430 taxable income, taxed at 20% basic rate. Your effective income tax rate is 11.6%. Note that you'll also pay National Insurance separately — use our Take Home Pay Calculator for the full picture.
What is the personal allowance for 2025/26?
The personal allowance for 2025/26 is £12,570. This is the amount of income you can earn tax-free each year. It has been frozen at this level since April 2021. If your income exceeds £100,000, your personal allowance is gradually reduced — reaching zero at £125,140.
Do I pay income tax on my pension?
Yes, most pension income is taxable. When you draw from a defined benefit or defined contribution pension, it is treated as earned income and subject to income tax at your marginal rate. However, up to 25% of your defined contribution pension pot can be taken as a tax-free lump sum (subject to a lifetime limit). The State Pension is also taxable income, though most pensioners' total income remains within the personal allowance or basic rate band.
What is the difference between marginal and effective tax rate?
Your marginal tax rate is the rate you pay on your next pound of income — for example, 40% if you're in the higher rate band. Your effective tax rate is your total tax as a percentage of your total income — which is always lower than your marginal rate because lower bands are taxed at lower rates. For a £60,000 earner, the marginal rate is 40% but the effective rate is just 19.1%.
When do I need to do a Self Assessment tax return?
You need to complete a Self Assessment return if you: are self-employed with income over £1,000; earn over £100,000; have untaxed income (such as rental income over £2,500, or savings interest above your personal savings allowance); are a company director; or claim certain tax reliefs. The online filing deadline is 31 January following the end of the tax year.
How does income tax work for couples?
Income tax is calculated individually in the UK — couples are taxed separately on their own incomes. There is no joint taxation. The only allowance that transfers between partners is the Marriage Allowance (worth up to £252/year) and the Married Couple's Allowance (for those born before 6 April 1935). Higher earners cannot transfer their unused personal allowance to a lower-earning partner beyond these schemes.
What tax code should I have in 2025/26?
The standard tax code for 2025/26 is 1257L, representing the £12,570 personal allowance. The L suffix means you're entitled to the standard personal allowance. If your code is different — for example if it starts with BR, D0 or K — it could indicate a different tax situation, a second job, or an error worth querying with HMRC.