While those at the top have profited, it seems that workers at the bottom of this supply chain have been squeezed. HMRC has previously warned businesses that employ temporary workers about the dangers of this practice. Workers may find that as they are moved from one company to another, they face difficulties accruing holiday pay. As a result of being shifted between companies, workers may remain on an emergency tax code, meaning tax is overpaid and has to be reclaimed. Such temporary employment arrangements frequently result in a lack of training for workers and few promotion prospects.

Source: The Guardian May 12, 2021 12:30 UTC