More or less every ten years, Germany reforms the financial relations between the federal government and the sixteen Länder. After some start-up difficulties, the recent reform of 2017 was agreed upon remarkably consensually. In dialogue between politics and science, this short study examines, which experiences of the reform of the German federal fiscal relations can be made useful from the international perspective, particularly for the development co-operation. In addition, we discuss which topics need to be put on the German federal agenda next.