ABSTRACT Purpose: How to evaluate the social impact of social innovation has emerged as an important question posed by academics, organizations, and policymakers in recent years. One reason for this is the increasing concern with the social impact of different types of organizations and social practices, particularly in response to a recognition of the urgency of developing more inclusive economies and societies. To find an answer to this question, this research seeks to investigate the state-of-the-art in terms of social innovation impact measurement, drawing on both scientific literature and practitioner literature. Originality/value: This research discusses the challenges posed by measuring the impact of social innovation initiatives and how these measurements may change the assessment process. The analysis finds that methodologies for measuring social innovation have mainly been undertaken in Europe, where these initiatives are largely addressed. Design/methodology/approach: This paper adopted a qualitative research approach based on the scoping review method. This method is widely used to identify emergent topics in scientific literature, aiming to identify implications for research and decision-making. The research was developed based on different steps to obtain information about the social impact measurement indicators and their overall contribution to the advancement of social innovation. Findings: The results also confirmed the lack of social innovation frameworks, methodologies, and tools capable of measuring the social impact of social innovations. Furthermore, a set of barriers in this field was identified, which can be used to channel better upcoming academic research on developing social impact indicators for social innovation.