This document provides a guide for creating a business plan to address social problems through a social entrepreneurial approach. It outlines a 4-step process for developing a business plan for enduring social impact: 1) Planning to Plan, 2) Articulating a Social Impact Model, 3) Developing an Implementation Strategy, and 4) Finalizing the Business Plan. The guide includes worksheets, examples, and advice to help social entrepreneurs develop a comprehensive business plan to solve social issues through a sustainable operating model and strategy.