This document discusses launching a social impact bond to expand supported employment programs for people with mental health issues in Staffordshire County, UK. It describes the key steps taken to develop the social impact bond, including understanding the social issue, defining the intervention and outcomes, building the business case, designing the program and outcome tariffs, and engaging investors. The social impact bond is intended to scale up Individual Placement and Support (IPS) services, an evidence-based supported employment program, to help more people with mental health conditions obtain and maintain meaningful employment.