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Understanding UK Income Tax in 2025/26: A Complete Guide

Everything you need to know about UK income tax bands, personal allowances, and how your salary translates to take-home pay in the 2025/26 tax year.

OT
OfferEval Team
·3 min read

This article is for informational purposes only and does not constitute financial, tax, or legal advice. Tax rules and thresholds are subject to change. Always consult a qualified adviser for guidance specific to your circumstances.

What Is Income Tax?

Income tax is the tax you pay on your earnings above a certain threshold. In the UK, most employees pay income tax through PAYE (Pay As You Earn), meaning your employer deducts it before you receive your salary.

Understanding your tax position is crucial when evaluating job offers — a £5,000 salary increase doesn't mean £5,000 more in your pocket.

The Personal Allowance

For the 2025/26 tax year, the personal allowance is £12,570. This is the amount you can earn before paying any income tax.

If your income exceeds £100,000, your personal allowance is reduced by £1 for every £2 you earn over £100,000. Above £125,140, you have no personal allowance at all.

Income Tax Bands

BandIncomeRate
Personal AllowanceUp to £12,5700%
Basic Rate£12,571 – £50,27020%
Higher Rate£50,271 – £125,14040%
Additional RateOver £125,14045%

Scottish Taxpayers

If you live in Scotland, different rates apply:

BandIncomeRate
Starter Rate£12,571 – £15,39719%
Basic Rate£15,398 – £27,49120%
Intermediate Rate£27,492 – £43,66221%
Higher Rate£43,663 – £75,00042%
Advanced Rate£75,001 – £125,14045%
Top RateOver £125,14048%

National Insurance Contributions

On top of income tax, you'll pay National Insurance (NI):

  • 8% on earnings between £12,570 and £50,270
  • 2% on earnings above £50,270

NI is separate from income tax and calculated differently — it doesn't benefit from the personal allowance in the same way.

A Practical Example

Say you're offered a £60,000 salary:

  • Personal allowance: £12,570 at 0% = £0 tax

  • Basic rate band: £37,700 at 20% = £7,540

  • Higher rate: £9,730 at 40% = £3,892

  • Total income tax: £11,432

  • NI (8%): £37,700 × 8% = £3,016

  • NI (2%): £9,730 × 2% = £195

  • Total NI: £3,211

  • Take-home pay: £60,000 − £11,432 − £3,211 = £45,357 (~£3,780/month)

Student Loans

If you have a student loan, repayments are also deducted via PAYE:

  • Plan 1: 9% on earnings above £26,065
  • Plan 2: 9% on earnings above £28,470
  • Plan 4 (Scotland): 9% on earnings above £32,745
  • Postgraduate: 6% on earnings above £21,000

Pension Contributions

Making pension contributions reduces your taxable income, which is a powerful way to increase your effective take-home pay. A salary sacrifice pension scheme is particularly efficient because you also save on National Insurance.

Use OfferEval to Compare Offers

Comparing job offers with different salaries, pension contributions, and student loan plans is complex. OfferEval's calculator handles all of this automatically — giving you a precise net income figure for any offer you're evaluating.

See how tax affects your job offers

Use our free calculator to get an instant net income breakdown for any UK salary — including tax, NI, student loans, and pension.

Try the calculator
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Written by OfferEval Team

Helping professionals understand UK tax and make smarter career decisions.