Achieving universal health coverage (UHC) in low- and middle- income countries has become an overwhelming global priority. Transforming this ambition into reality is a key technical focus for OPM. We provide technical assistance across the health financing functions, tackling fundamental questions such as: how to ensure the equity principles embedded in UHC are respected when collecting revenues for health? How to raise additional revenues? How to enable, in theory and in practice, a pooling system that allows for the greatest level of cross subsidisation and how to purchase services in the most efficient way and choose the most appropriate type of benefit package to include in UHC?