Since socialist Vietnam embraced a market economy in the mid-1980s, high population mobility has engendered shifting forms of insecurity in rural livelihoods and family lives. This article discusses how migrant households in a Red River Delta rural district draw on institutions of care beyond family and kinship to deal with such insecurity. These institutions simultaneously respond to local people’s changing needs and aspirations, and attempt to exert social and moral control. I show the increasing conditionality and commodification in the entitlements they provide and the differential ability of migrant households in accessing them. These rationalities are constitutive of the changing ways in which the institutions exert moral authority.