Immigrant volunteering is a disputed topic. For some scholars, an important instrument for the social integration of immigrants, while others frame immigrant volunteerism as a regime of ‘ethical citizenship’ centred around the paradigms of ‘civic integration’ and ‘deservingness’. Our research collected the experiences of hundreds of migrant volunteers in Italy (658 questionnaires plus 89 in-depth interviews) to address three research questions in particular: immigrant volunteers’ levels of social inclusion, their reasons for volunteering, and the links between volunteering and other forms of social and political participation. Our findings show that volunteering is more dependent on social integration than on social marginality, represents a way to achieve a higher level of social integration, and can be framed as a way to perform active citizenship and anti-xenophobic claims. In particular, volunteering allows immigrant to present themselves as active subjects, oppose demeaning stereotypes, and express political commitment. Ultimately, this substantiates a form of citizenship ‘from below’ that re-writes the script of citizenship and enriches it with new ideas of entitlements and belongings.