This chapter addresses the shifting boundaries and barriers between Insiders and Outsiders and the consequences for citizenship. It examines the possibilities for escaping from a logic that presents Insiders (citizens) and Outsiders (migrants) as competitors for the privileges of membership in the state of residence. EU citizen status is taken as a lens, which reveals shared practical interests and offers new conceptual insights. The chapter outlines how citizenship, and relatedly the foreigner/migrant, is understood, its relationship to deservingness, and the community of value. It examines naturalisation – how migrants are made into citizens – as exemplifying the normative ways in which the boundary between the Insider and the Outsider is porous and can also be ethnic. Citizenship has an instrumental and normative value, highlighted by EU citizenship exposing the ways in which national EU citizens are an important form of social capital. Attempts to harden Insider/Outsider boundaries are discussed, such as investor citizenship programmes and membership of a diaspora. The chapter also examines the ways in which Insiders can become Outsiders, considering the valuing of the worker-citizen that creates boundaries within the legal citizenship status, and suggests that what is bad for non-citizens/migrants is not necessarily good for citizens.