If you’re a contractor or agency worker, find out how to check your payslip to make sure you are not involved in a tax avoidance scheme, operated by some umbrella companies.If you’re a contractor or agency worker, find out how to check your payslip to make sure you are not involved in a tax avoidance scheme, operated by some umbrella companies.Read MoreGuidanceHM Revenue & Customs – Activity on GOV.UK