£21 an hour is how much a year?
A year before tax
£40,950
At £21 an hour for 37.5 hours a week, you earn £40,950 a year before tax, or £3,412.50 a month.
A job at £21 an hour pays £40,950 a year on a 37.5 hours week, which is above the median full-time salary in April 2025. That is £3,412.50 a month or £787.50 a week before tax. Once income tax and National Insurance are paid, a worker in England is left with £33,005.40 for the year.
| Hours a week | A week | A month | A year |
|---|---|---|---|
| 20 | £420.00 | £1,820.00 | £21,840.00 |
| 35 | £735.00 | £3,185.00 | £38,220.00 |
| 37.5 | £787.50 | £3,412.50 | £40,950.00 |
| 40 | £840.00 | £3,640.00 | £43,680.00 |
| England, Wales and Northern Ireland | Scotland | |
|---|---|---|
| A year | £33,005.40 | £32,930.92 |
| A month | £2,750.45 | £2,744.24 |
| A week | £634.72 | £633.29 |
A longer week reaches the Scottish higher rate
On 37.5 hours a week, a Scottish taxpayer on £21 keeps £32,930.92, with the top of the pay taxed at the intermediate rate. On 40 hours a week the yearly pay becomes £43,680, just past the start of the Scottish higher rate of 42%.
Only a sliver of pay is above that line, so the tax effect over a year is small. What changes is the rate on any further pay. Each extra pound a Scottish worker earns beyond that point loses half to income tax and National Insurance combined. In England the same pound still loses 28%, because the English higher rate starts much later.
England, Wales and Northern Ireland at £21
Income tax on a full-time year is £5,674.20, all at the basic rate. Employee National Insurance adds £2,270.40, which leaves £2,750.45 to take home each month.
On 40 hours the English take-home rises to £34,971, with every extra hour still in the basic rate band. The salary after tax page for the nearest round salary sets out the full working, including what each student loan plan would take.
Part-time work at £21 an hour
Twenty hours a week at £21 pays £21,840 a year. That is well above the personal allowance, so tax and National Insurance still apply to a good part of it, all at the basic rate. For a salaried post advertised on full-time terms, the pro rata calculator scales the salary to the hours you would work.
Questions
How much is £21 an hour a year?
On a 37.5 hours week, £21 an hour is £40,950 a year. On a 40 hours week it is £43,680. Both are gross, before tax and National Insurance.
What is the take-home on £21 an hour?
In England, Wales and Northern Ireland the take-home is £33,005.40 a year, or £2,750.45 a month, for 37.5 hours a week with no pension or student loan.
Do Scottish workers pay higher rate tax at £21 an hour?
Not on a 37.5 hours week. On a 40 hours week a small part of the yearly pay of £43,680 goes over the start of the Scottish higher rate, so that part is taxed at 42%.