Financial inclusion is a catalyst towards growth and opportunity. It is therefore not surprising that it features as a target in eight of the seventeen Sustainable Development Goals. It is associated with reducing poverty, increasing resilience, and improving economic growth, innovation, and family well-being. Beyond supporting these overarching goals, women’s financial inclusion crucially also contributes to women’s economic empowerment and gender equality. The purpose of this toolkit is to help practitioners working in developing countries advance women’s financial inclusion and navigate the existing barriers.