The document discusses the transition from the Millennium Development Goals (MDGs) to the new Sustainable Development Goals (SDGs) and what is needed to accomplish the more comprehensive SDGs. It notes that trillions, rather than just billions, will be required annually to achieve the SDGs. Domestic resource mobilization, including improving tax administration systems and compliance, can provide much of the financing needed from developing countries themselves rather than relying on international aid. Effective tax administration requires political will, clear strategies, and resources to facilitate compliance, enforce rules, and improve governance.