Processes of individualization have transformed families in late modernity. Although families may be more opportunistically created, they still face challenges of economic insecurity. In this article, we explore through in-depth qualitative interviews how families by choice manage low income through the instrumental and expressive supports that they give and receive. Two central themes organize our analysis: "defining/doing family" and "generationing." Coupling the individualization thesis with a life course perspective, we find that families by choice, which can include both kin and nonkin relations, are created as a result of shared life events and daily needs. Families by choice are then sustained through intergenerational practices and relations. Importantly, we add to the growing body of literature that illustrates that both innovation and convention characterize contemporary family life for low-income people.