Companies around the world are increasingly concerned about the impacts that their businesses have on societies in their home countries as well as abroad. For many companies operating in developing countries, impacts on society are related to the effects of their operations on development and poverty reduction, and in turn play an important role in determining the success of the business itself. Understanding the links between business and development can highlight real opportunities for enlightened businesses to make a positive difference. This paper explains Oxfam's Poverty Footprint Methodology, which helps companies to comprehensively understand how their operations affect the people in their value chains and the communities and countries where they operate.Key content; Why analyse business impacts on society? What is a Poverty Footprint? What does a Poverty Footprint examine? What does a Poverty Footprint offer? What does a Poverty Footprint reveal?