£25,000 bonus on £90,000 salary: Take-home and tax breakdown 2026/27

A £25,000 bonus paid on top of a £90,000 base salary in 2026/27 leaves £11,500 in cash take-home after Income Tax and employee National Insurance. That is an effective marginal rate of 54.0% on the bonus pound. Baseline annual take-home before the bonus is £62,757; with the bonus paid as cash the figure rises to £74,257. Figures below assume England rest-of-UK rates and no pension contribution.

Bonus tax breakdown

Per-line contribution of the bonus only (combined payslip minus baseline-salary payslip).

Line Amount
Gross bonus £25,000
Income Tax on bonus £13,000
Employee NI on bonus £500
Pension (assumed nil for this scenario) £0
Net bonus take-home £11,500
Effective marginal rate 54.0%

Annual payslip vs baseline

Annual figure £90,000 only + £25,000 bonus Bonus impact
Gross £90,000 £115,000 +£25,000
Income Tax £23,432 £36,432 +£13,000
National Insurance £3,811 £4,311 +£500
Take-home £62,757 £74,257 +£11,500

Same £25,000 bonus, different salaries

How the same bonus is taxed depends entirely on the base salary it stacks on top of.

Base salary Bonus take-home Effective marginal Page
£90,000 (this page) £11,500 54.0% -
£65,000 £14,500 42.0% View
£125,000 £13,229 47.1% View

Different bonus sizes on the same £90,000 salary

Bonus Bonus take-home Effective marginal Page
£25,000 (this page) £11,500 54.0% -
£10,000 £5,800 42.0% View
£50,000 £23,229 53.5% View

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Frequently asked questions

How much tax do I pay on a £25,000 bonus with a £90,000 salary?
On a £90,000 base salary in 2026/27, a £25,000 bonus generates £13,000 of Income Tax and £500 of employee National Insurance. After PAYE deductions the bonus take-home is £11,500 - an effective marginal rate of 54.0% on the bonus pound.
What is the effective marginal rate on this bonus?
54.0% across Income Tax and employee NIC combined. The bonus sits in higher-rate territory: 40% Income Tax plus 2% NI on earnings above the £50,270 threshold. Salary-sacrificing the bonus into pension would avoid both.
Would salary-sacrificing this £25,000 bonus into pension be worth it?
Sacrificing the bonus puts the full £25,000 into your pension pot tax-free vs £11,500 cash in hand - a gain of £13,500 of pension value over cash. The trade-off is liquidity: pension money is locked until age 57 (rising to 58 in 2028). At 54.0% marginal, sacrifice is usually the right call for anyone with adequate liquid savings.
Why might the bonus payslip show more tax taken than this figure?
PAYE uses cumulative year-to-date estimates: a one-off bonus in month 6 makes payroll think your annual income has doubled, so the bonus month over-withholds. The remaining months gradually correct it. The annual total reconciles to the figure shown here.

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