Under the Tier 2 and 5 sponsor guidance, sponsors are required to report any sponsored worker who has 10 consecutive days of unauthorised absence. Furthermore, if a migrant is unpaid for more than four weeks, subject to limited exceptions, the sponsor is required to withdraw sponsorship.

Sponsored workers were concerned that this threat of having their visa curtailed prevented them from taking part in strike action. To resolve this problem, the Home Secretary has announced that legal strike action will be added to the list of exceptions to the rule about absences without pay.