The report “Making Blended Finance work for the SDGs” supports the OECD DAC blended principles for unlocking commercial finance for SDGs and further sharpens their focus on the deployment of development and commercial finance on the objectives of development. The report presents a comprehensive assessment of the state of blended finance and priorities for action to improve its implementation, drawing on surveys, case studies, interviews and desk research. It is useful for a broader range of policy makers and practitioners pursuing sustainable development in developing countries.