Muskoka2 is a method developed jointly by the Countdown to 2030 and the Partnership for Maternal Newborn and Child Health to generate estimates of aid for reproductive, maternal, newborn, and child health (RMNCH). The Muskoka2 method responds to donors' and other stakeholders' request for a single, agreed method which produces accurate, predictable, transparent and up-to-date estimates that can be used for analyses from both donor and recipient perspectives. This project includes various datasets, which have been updated over time, as well as analyses.