This part of GOV.UK is being rebuilt – find out what beta means

HMRC internal manual

National Minimum Wage Manual

Working time: introduction

## Relevant legislation {#IDAYM5PC}

The legislation that applies to this page is as follows:

* National Minimum Wage Regulations 2015, regulations 7 & 17 to 50



Employers are required to pay their workers at least the national minimum wage for the hours worked in each pay reference period.

The calculation for establishing a workers rate of pay for a pay reference period (NMWM09050) is;



P is the worker’s national minimum wage pay (NMWM09040), and

H is the hours worked.

The hours worked is based on the time worked (and treated as worked) as determined by the type of work (NMWM07010) being performed. It is therefore essential to establish the type of work being performed before the hours worked in a pay reference period can be established.

For national minimum wage purposes, there are different rules and calculations to consider for the hours worked for each type of work. These are:

  • Salaried hours work (NMWM08020)
  • Time work (NMWM08240)
  • Output work (NMWM08340)
  • Unmeasured work (NMWM08450)