The Fourth International Conference on Financing for Development (FFD4) convened from June 30 to July 3, 2025, in Seville, Spain, under the auspices of the United Nations. The event, held once every decade, gathered global leaders, including Spain's Prime Minister Pedro Sánchez, United Nations Secretary-General António Guterres, and King Felipe VI of Spain, to address the reform of the global financial architecture and improve aid mechanisms to close the $4 trillion financing gap for the Sustainable Development Goals (SDGs). The conference emphasized multilateralism's essential role in fostering collective progress and focused on areas such as fairer tax systems, sovereign debt relief, investment in local solutions, domestic resource mobilization, private capital leveraging, digitalization, and revitalizing international cooperation for development. Key outcomes included the adoption of the "Sevilla Commitment," a new roadmap for sustainable development financing, the Plan Sevilla for Multilateralism, the Platform for Action, and the establishment of a Global Hub for Debt Swaps. Spain played a significant role in advancing initiatives like the Alliance for Debt Suspension Clauses. The conference proceeded without the participation of the United States and concluded with calls for unity and renewed international financing frameworks aimed at alleviating the debt burdens of poorer nations and enhancing global development cooperation.