Various international political groupings including the G8, G20, the Commonwealth Secretariat and La Francophonie are taking a greater interest in the reform of the international aid system. More direct government and civil society engagement in these fora has the potential to build the trust and mutual accountability required for full implementation of Paris as well as the collective action required for significant UN reform. This paper sets out some options for reform which could be discussed by these political groupings and draws up a calendar of events for the next five years as the start of a process for identifying where and when high-level political engagement will be required to ensure significant reform of the international aid system.