Not only graduation rates are important, the quality of the education received also matters for the educational prospects of young people and successful entry into the labour market. The shares of neither employed nor in education or training (NEET) are negatively related to the skill levels among young people (OECD, 2017a). The main objective of this review is to answer the following research question: What are the effects of service learning on academic success, NEET status, personal and social skills and risk behaviour of students in primary and secondary education (grades kindergarten to 12)? Further, the authors will investigate the following factors with the aim of explaining potential observed heterogeneity: study-level summaries of participant characteristics (e.g., studies considering a specific gender, age or socioeconomic level or studies where separate effects for girls/boys, primary school/secondary school or low/high socioeconomic status are available) and quality of the service learning programme according to the standards as outlined in section "The intervention." The moderator analysis will be performed as outlined in section "Moderator analysis and investigation of heterogeneity."