This contribution provide an analysis of social assistance services for migrants provided by SAI projects aimed at single adults and families. The first part offers a summary of the relevant provisions, emphasising the specific roles assigned to social workers in SAI projects. It then explores the practices related to the intake of migrants into SAI projects by territorial social services and the varying access to social benefits depending on the residence permits. The second part, based on an exploratory survey conducted in Tuscany, presents reflections on the critical issues emerging in the implementation of social assistance. within SAI projects.