Financial support to developing countries' education sectors remains low. More and better-targeted resources would unlock large social returns. Education is a critical national investment to raise incomes, tackle deep-seated inequalities, meet obligations for the fundamental rights of children, and enable shared success in delivering the Sustainable Development Goals. Unlocking these gains requires robust, consistent support from national governments and donors, including multilateral banks and the private sector. The GPE Multiplier is a US$300 million innovative finance window that provides an incentive and financial resources to catalyze more and better investment in education. It is a new type of grant that supports countries in implementing education sector plans. Based on eligibility and allocations agreed by the Global Partnership for Education's (GPE's) multi-stakeholder Board of Directors, individual countries can unlock up to US$25 million in additional funding from GPE.