What does your salary actually look like after tax?
Your gross salary and your take-home pay can look very different. Depending on your student loan plan, pension contributions, and whether you live in Scotland, the effective rate at which the government takes a share of your earnings varies considerably. See the full breakdown for your situation below.
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Where does your salary rank?
Income percentile by age cohort.
How much tax do you pay on £30,000?
On a £30,000 gross salary in 2025-26, you pay no tax on the first £12,570 (your personal allowance). You pay 20% income tax on the remaining £17,430, which is £3,486. You also pay employee National Insurance at 8% on earnings between £12,570 and £30,000, which is £1,394. Total deductions before student loan or pension are approximately £4,880, leaving a take-home of around £25,120 per year, or about £2,093 per month. Your effective tax rate is approximately 16%.
Is it worth earning over £100,000?
Earnings above £100,000 create a personal allowance trap. For every £2 you earn above £100,000, you lose £1 of your £12,570 personal allowance. This means the portion of income between £100,000 and £125,140 is effectively taxed at 60% (40% income tax on the income itself, plus 40% on the equivalent lost allowance). The personal allowance is fully withdrawn at £125,140. This is one of the least understood features of the UK tax system and makes salary sacrifice pension contributions particularly valuable in this earnings band.
How does Scotland's tax compare?
Scotland uses a different income tax structure with six bands instead of England's three. At lower incomes, the difference is small: the Scottish starter rate of 19% applies from £12,571 to £14,876, versus England's 20% basic rate from £12,571. However, Scotland's intermediate rate of 21% and higher rate of 42% (versus 40% in England) mean that Scottish taxpayers earning above £43,663 pay more income tax than their English counterparts. At £50,000, the difference is around £1,500 per year. National Insurance is the same across the UK.
Frequently asked questions
The personal allowance for 2025-26 is £12,570. This is the amount of income you can earn each year before paying income tax. It has been frozen at this level since 2021-22 and will remain frozen until at least 2027-28 under current government plans. Because wages have risen with inflation while the allowance has stayed flat, a greater proportion of workers are moving into higher tax bands each year, a process sometimes called fiscal drag.
Plan 1 applies to students who started undergraduate study in England or Wales before September 2012, or in Northern Ireland. Plan 2 applies to undergraduate students who started in England or Wales from September 2012 to July 2023. Plan 4 applies to Scottish students who took out a loan with the Student Awards Agency Scotland. Plan 5 applies to undergraduate students who started in England from August 2023. Postgraduate loans are separate from undergraduate loans and repayments run concurrently if you have both.
Yes. Pension contributions via salary sacrifice reduce your gross pensionable pay before tax and National Insurance are calculated. This means you save both income tax and employee NI on the contribution amount, not just income tax as with relief-at-source pension contributions. For a basic rate taxpayer, salary sacrifice saves approximately 32% (20% tax plus 8% NI) on each pound contributed. For higher rate taxpayers, the saving rises to 42% plus 2% NI. Salary sacrifice also reduces the salary on which your employer calculates their own NI contributions.
Employee Class 1 NI rates in 2025-26: 8% on earnings between the primary threshold (£12,570/year) and the upper earnings limit (£50,270/year); 2% on all earnings above £50,270. Employer NI is charged at 15% on earnings above the secondary threshold of £5,000/year, a rate and threshold that changed significantly in April 2025. Self-employed workers pay Class 4 NI at 6% on profits between £12,570 and £50,270, and 2% above, plus Class 2 NI if profits exceed the small profits threshold.
- HMRC. Income Tax rates and allowances 2025-26. gov.uk.
- HMRC. National Insurance rates 2025-26. gov.uk.
- Student Loans Company. Repayment thresholds 2025-26. gov.uk.