Social impact bond

A financial tool that enables private investors to fund social impact projects, with the potential to earn a return if the project achieves its targeted outcomes. If the project succeeds in delivering the desired social or environmental results, the government and/or other actors ‘purchase’ the outcome, which enables investors to be repaid with interest. If the project falls short of its goals, investors may lose some or all of their investment. Social impact bonds are a type of ‘payments for outcomes’.