Since the conception of post-war national welfare states and the adoption of the Universal Declaration of Human Rights in 1948, the notions of citizenship and of civic, political and social rights were institutionalised in European welfare states. In that vein, a social work workforce acquired a professional and public mandate to implement social policies. During recent decades, however, welfare state arrangements seem to have moved in another direction. The premise that the welfare state is responsible for social protection and the redistribution of resources has subtly shifted into one of an active welfare state, with a stronger focus on individual responsibility and conditionality. In addition, welfare state arrangements have been based on the premise of a territorial logic of the nation state, making it more difficult for migrants to access services. In this article, we first discuss the transformation of welfare state arrangements. We then make use of an exemplary case, namely, the emergence of new social work practices during the COVID-19 pandemic, to illustrate the current positioning of social work practice. In the final part, we critically tease out the changing role of social work and social work research in these circumstances.