IR35 also known as the “intermediaries legislation”. This piece of legislation to is designed to prevent tax avoidance for any contractor working for an end-hirer via an intermediary (i.e. a Limited Company or Personal Service Company). In a nutshell, it is aimed to stop contractors working as disguised employees and any assignments “inside IR35” or “caught by IR35” must make a deemed payment to HMRC roughly equivalent to the taxes that would have been paid had they been employed by the hiring company.
HMRC
Her Majesty’s Revenue and Customs (HM Revenue & Customs or HMRC) is a government department responsible for the collection of taxes and National Insurance contributions,