This Practice Note has been written by Anne Redston, Barrister. It is her personal view; she is not authorised to speak for the Tribunals Service or the judiciary. This Practice Note explains how to work out whether a person is employed or self-employed. It considers the National Insurance contributions (NICs) deeming rules, the contractual relationship between the parties, HMRC status determinations, together with how these can be challenged, and HMRC’s Check Employment Status for Tax (CEST) tool. This Practice Note should be read with Practice Note: Employment status tests—from a tax and NICs perspective. The reasons why status is important is explained in Practice Note: Employment status—why it matters. Remember that this Practice Note, and the other Practice Notes on employment status, are only a summary of the applicable law and do not cover all situations. HMRC may also take a different approach to workers in the entertainment industry, including film, theatre, TV and radio and musicians, and that approach is not covered in this Practice Note. In addition, further changes are