This paper addresses the field of impact assessment and evaluation for social enterprises. It analyzes the perceptions and needs of four stakeholder groups, which play a pivotal role in both the fields of impact assessment and social entrepreneurship: social enterprises (SEs), impact investors, impact analysts & intermediaries, and designers of impact assessment methods. The research findings build a comprehensive understanding of three main themes: system of impact assessment, its purposes, and challenges faced. The synthesis of the findings informs alignments and misalignments between stakeholder groups which ultimately leads to recommendations that can improve usability and accessibility of impact assessment for social enterprises.