The National Minimum Wage (NMW) is the least which you must be paid per hour.
As of 1 April 2019, the current National Minimum Wage rate for people aged 25 and over is £8.21 an hour (called the National Living Wage). Those aged 21 to 24 should get at least £7.70, aged 18 to 20 should get £6.15. People aged 16 and 17 are entitled to the current rate of £4.35 per hour. There is also an apprentice rate of £3.90.
The NMW is revised every year.
You can check whether you're entitled to the National Minimum Wage, at which rate, and how much you can expect with our minimum wage calculator.