By the end of the 20th century, there was general agreement that most labour markets were in transition and that employment was becoming less secure. However, official labour market data have not shown a dramatic increase in temporary or casual employment. This article takes a new look at the changing characteristics of employment and offers a new method to measure employment security: the Employment Precarity Index. We use the Employment Precarity Index to assess how insecure employment associated with a ‘gig’ economy might affect well-being and social relations, including health outcomes, household well-being and community involvement.