Book excerpt: Developing countries in Asia have expanded their social protection programs. One of the key challenges is creating sustainable financing---considered the bedrock for success of the social protection agendas of the United Nations Sustainable Development Goals (SDGs) Agenda and Strategy 2030 of the Asian Development Bank (ADB). This book focuses on the analysis of fiscal requirements to achieve the social protection agenda of the SDGs and explore options to close the gaps in population coverage and adequacy of protection of social assistance, health care, and social insurance systems of ADB developing members over the next decade.