£21 an hour is how much a year?
At £21 per hour, a full-time job (37.5 hours a week) pays £40,950 a year before tax — and £33,004 after tax and National Insurance in 2026/27.
Gross per year (37.5h)
After tax per year
After tax per month
Net per hour worked
£21/hour at different weekly hours
| Hours per week | Weekly | Monthly | Yearly (gross) |
|---|---|---|---|
| 16 hours (part-time) | £336.00 | £1,456 | £17,472 |
| 20 hours (part-time) | £420.00 | £1,820 | £21,840 |
| 37.5 hours (full-time) | £787.50 | £3,413 | £40,950 |
| 40 hours | £840.00 | £3,640 | £43,680 |
Calculations assume 52 paid weeks per year. Contracted hours, overtime and unpaid breaks change the real figure — use the hourly wage calculator for your exact situation.
Take-home at 37.5 hours
| Gross salary | £40,950 |
| Income tax | −£5,676 |
| National Insurance | −£2,270 |
| Take-home per year | £33,004 |
| Per month | £2,750 |
| Per week | £635 |
Effective tax rate: 19.4%
Take-home at 40 hours
| Gross salary | £43,680 |
| Income tax | −£6,222 |
| National Insurance | −£2,489 |
| Take-home per year | £34,969 |
| Per month | £2,914 |
| Per week | £672 |
Working 2.5 extra hours/week adds £1,966 a year after tax.
Frequently asked questions
£21 an hour is how much a year in the UK?
Working full-time at 37.5 hours a week, £21 an hour is £40,950 a year before tax. On a 40-hour week it's £43,680 a year.
£21 an hour is how much a month after tax?
At 37.5 hours/week, £21/hour gives a gross annual salary of £40,950, which is £2,750 per month after income tax and National Insurance in 2026/27.
Is £21 an hour a good wage in the UK?
Yes — £21/hour full-time equates to £40,950 a year, comfortably above the UK median full-time salary of roughly £37,000.
What is £21 an hour weekly?
£787.50 a week at 37.5 hours, or £840.00 at 40 hours, before tax.