Most of the expansive literature on social citizenship follows its leading thinker, T. H. Marshall, and talks only about the British state, often referring only to England. But social citizenship rights require taxation, spending, effective public services and politics committed to them. They can only be as strong as politics makes them. That means that the distinctive territorial politics of the UK are reshaping citizenship rights as they reshape policies, obligations and finance across the UK. This timely book explores how changing territorial politics are impacting on social citizenship rights across the UK. The contributors contend that whilst territorial politics have always been major influences in the meaning and scope of social citizenship rights, devolved politics are now increasingly producing different social citizenship rights in different parts of the UK. Moreover, they are doing it in ways that few scholars or policymakers expect or can trace. Drawing on extensive research over the last 10 years, the book brings together leading scholars of devolution and citizenship to chart the connection between the politics of devolution and the meaning of social citizenship in the UK. The first part of the book connects the large, and largely distinct, literatures on citizenship, devolution and the welfare state. The empirical second part identifies the different issues that will shape the future territorial politics of citizenship in the UK: intergovernmental relations and finance; policy divergence; bureaucratic politics; public opinion; and the European Union. It will be welcomed by academics and students in social policy, public policy, citizenship studies, politics and political science.