This paper addresses policy change in Britain since 2010 across the three fields of domestic welfare, migration and asylum, and analyses the association between welfare, conditionality and control through the lens of civic stratification. Drawing on the work of Richard Munch and Mary Douglas, it moves beyond existing literature in this area to show that the more complex the classification in play, and the more severe its boundary implications, the more likely the emergence of contestable margins. Informed by Munch’s ‘battlefield’ approach, it provides a discussion of contestable margins in each of the three policy fields and outlines the nature and source of challenges that emerge within the ‘institutional battlefield’. A concluding section reflects on what is revealed by viewing welfare, migration and asylum within the same conceptual frame, identifying an emergent welfare paradigm that displays recurrent problems across all three fields.