We thought it would be a good idea to show the minimum you should be paid per hour. Holiday pay should be paid at the end of your contract for any untaken holiday, and on a casual engagement it should be added to the rate.
NMW Rates have been updated as of 1st April 2020
The government website has more details about NMW, employment rights for interns and work experience, as well as working as an intern and as an apprentice (they are NOT the same thing). (Apprentice holiday pay is not shown above as the rate is different from Workers).
See also You And The Minimum Wage