Each Concentrate revision guide is packed with essential information, key cases, revision tips, exam Q&As, and more. Concentrates show you what to expect in a law exam, what examiners are looking for, and how to achieve extra marks. This chapter discusses the concept of employment status. Topics covered include the reasons for distinguishing employees from other types of worker; statutory definitions of employee and worker; and the courts’ and tribunals’ approach to identifying employees. The tests for employment status are stated, concentrating on mutuality of obligations and personal service. Discussion centres on zero hours contracts, agency workers, and the gig economy.