Impact investing is a new developmental paradigm in Brazil, Russia, India, China, and South Africa (BRICS), and its effective implementation is a fundamental factor in securing stable and innovative economic development at the national level. With impact investing, investors look to generate positive social and environmental impacts alongside financial returns. The current study reveals the innovative mechanisms of impact investing, namely, financial and economic tools and new business technologies. It also explores the diverse ways in which impact investment capital can be leveraged in BRICS countries. The results indicate the advantages and problems inherent in impact investing, as well as the main directions in which this type of investing can develop. The current study examines the development of impact investing in BRICS countries. It also touches upon the role of impact investing in the development of their economies and identifies the main problems inherent in implementing impact investing there.