This paper provides insights into the operational features of community-based financing mechanisms. These include CAF groups, which are self-financed communities where people save and lend money to each other. The implementation of such self-financed communities in the Netherlands is supported by Participatory Action Research (PAR). This paper discusses the first results of this research by exploring whether and how participation of group members can improve their well-being with regard to social networks, financial household management and entrepreneurial positioning based on the capability approach of Amartya Sen, a well-known economist. For this PAR, three groups were formed, guided, observed, analysed and compared. This paper demonstrates how solidarity economy processes at the grassroots level can contribute to the general well-being of vulnerable people in the Netherlands. For the particular context of overconsumption, inequality and overindebtedness, Sen’s notion of freedom will be reconsidered and adjusted.