A successful and fully integrated single market is a central bedrock for the future of the European Union. At the same time, the single market remains Europe’s biggest construction site. This paper puts into concrete terms the core demand of German industry to make the completion of the single market an overarching political leitmotif of national and European policy once again. The proposed recommendations for action are intended to help overcome the current political stalemate in deepening the single market at national and European level.