Piece workers (“output” work)
[ch 4: page 100]Workers working at home and paid according to what they produce (piece workers) have the right to a minimum fair piece rate of 120% of the NMW (regulation 43, NMWR 15).
Guidance on calculating the NMW for output-based piece workers can be found at the GOV.UK webpage: Minimum wage for different types of work (paid per task or piece of work done) (https://www.gov.uk/minimum-wage-different-types-work/paid-per-task-or-piece-of-work-done).