£21,000 salary after tax — the UK, 2026/27

On a gross salary of £21,000 in 2026/27, you take home £18,639.60 in the UK after income tax and National Insurance. That is £1,553.30 a month and £358.45 a week.

£18,640Take-home per year
£1,553Per month
£1,686Income tax
£674National Insurance

The full calculation

Gross salary£21,000.00
Personal Allowance£12,570.00
Taxable income£8,430.00
Income tax−£1,686.00
National Insurance−£674.40
Take-home pay£18,639.60

Income tax by band

Tax bandAmount taxedTax
Basic rate — 20%£8,430.00£1,686.00

Overall, 11.2% of this salary goes in tax and National Insurance. On each extra £100 earned at this level, £28 would be lost to tax and National Insurance (a 28% marginal rate) — before any pension or student loan effects.

For comparison, the same salary in Scotland leaves £18,679.27 — that is £39.67 more than in the UK.

← £20,000 after tax £22,000 after tax →

Want to add a pension or student loan, or try a different figure? Use the take home pay calculator.

Frequently asked questions

How much tax do I pay on a £21,000 salary?

In 2026/27 a £21,000 salary in the UK pays £1,686.00 income tax and £674.40 National Insurance, leaving take-home pay of £18,639.60.

What is £21,000 a month after tax?

£1,553.30 a month — £18,639.60 a year, or £358.45 a week, for 2026/27.

What if I pay 5% into a pension on £21,000?

A 5% pension contribution is £1,050.00 a year. Through a net pay arrangement your take-home becomes £17,799.60 — the contribution costs you £840.00 of take-home because of the tax relief.