The rise of wage labour in the countryside forms a fundamental element in the transition to a modern, capitalist economy and society. Hard data on this development, however, are scarce. Here, the importance of wage labour around the middle of the sixteenth century is reconstructed for three regions in the Low Countries. This reconstruction shows not only a high importance of wage labour, between a quarter to almost 60 per cent of rural labour input, but also strong regional differences. These differences appear not to be connected to urbanization or to the rise of one or another sector in the rural economy, but to the regional social and institutional framework in which the economy developed.