Financial exclusion remains a significant barrier to economic development, particularly in Emerging Markets and Developing Economies (EMDEs). This chapter explores the role of impact investing as a powerful tool for expanding financial access, bridging funding gaps, and fostering inclusive economic growth. With nearly 1.4 billion unbanked adults worldwide and MSMEs facing an estimated $5.2 trillion financing gap, impact capital presents a transformative opportunity to address these critical challenges. The chapter examines systemic barriers to financial inclusion, including biases in credit allocation, information asymmetry, high transaction costs, and entrenched socio-economic inequalities. It highlights the persistent financial exclusion of women, rural populations, and low-income households. It demonstrates how impact investing can dismantle these obstacles by leveraging innovative financial products, digital banking solutions, and alternative credit assessments. Additionally, the discussion explores how impact investing can unlock growth opportunities in EMDEs through technology adoption, fintech innovations, and policy reforms. With mobile banking and blockchain solutions redefining financial ecosystems, investors can drive scalable and sustainable financial inclusion. The chapter also emphasises the importance of local partnerships, risk mitigation strategies, and capacity-building initiatives to ensure long-term success. Policymakers play a crucial role in fostering an enabling environment for impact investing. The chapter outlines regulatory improvements, incentives for private-sector participation, and digital finance policies that enhance financial accessibility while ensuring stability. It also addresses the intersection of financial inclusion with gender equality, rural development, and climate resilience, demonstrating how impact capital can contribute to the broader Sustainable Development Goals (SDGs). As a catalyst for equitable economic transformation, aligning capital with social outcomes, investors can drive financial access for underserved communities, unlock untapped economic potential, and contribute to a more inclusive global financial system.