Few goods are delivered ‘complete’ to consumers as ready for use without further processing. The operation of markets and capitalist production presuppose the work of consumers in searching for, completing and coordinating between goods and services. Yet the critical contribution of consumers in finalising and complementing a division of labour is rarely acknowledged in theories of either work/production or consumption. The article argues for a radical extension of the division of labour, a central and classical concept of sociology, in order to overcome this limitation. Consumption work is defined as ‘all work undertaken by consumers necessary for the purchase, use, re-use and disposal of consumption goods’ and its distinguishing characteristics are delineated. Building on a relational socio-economic perspective, which emphasises the connections between different forms of work (paid/unpaid, formal/informal, production/consumption), an analytical framework for consumption work is developed and then elaborated by reference to comparative empirical research.