Purpose The purpose of this paper is to elaborate on how service learning approaches are able to foster social entrepreneurship competences. The aim of the paper is to formulate a framework of key competences for social entrepreneurship and to give first insights in how service learning actually has an impact on change in students’ set of competences. Design/methodology/approach This paper uses a mixed-methods approach combining qualitative data collectionmethods of learning diaries of the students and semi-structured interviews, including 40 master’s students studying at a German university in interdisciplinary learning settings and five instructors from the same universities. Analysis was carried out by means of qualitative content analysis. Findings This paper provides empirical insights about the competences that are being fostered by service learning. From these, a framework for social entrepreneurship competences is being derived. Research limitations/implications The set of competences should be further investigated, as it was derived out of a small data set. Therefore, researchers are encouraged to use the set of competences for social entrepreneurship as a basis for future research and on a longer-term perspective, which lead to substantial implications for educational practice. Practical implications This paper includes implications for new perspectives on service learning in the light of the development of a relevant framework for social entrepreneurship competence, having significant implications for educational practice in social entrepreneurship education. Originality/value With this paper, the authors fulfill the need of a framework of social entrepreneurship competences that serves as a foundation for educational practice and further research in the context of service learning and beyond.