Despite the unprecedented progress recorded in Maternal, Neonatal and Child health outcomes globally in the past decade, many low and medium income countries (LMICs), particularly those in sub Saharan African do not have smart, scaled and sustainable financing mechanism to meet the Reproductive, Maternal, Neonatal, Child, Adolescent Health and Nutrition (RMNCAH +N) related SDG Targets in 2030. The Situation analysis conducted revealed a high RMNCAH + N health burden with unacceptably high mortality and morbidity rates for mothers, neonates, children and adolescents. This necessitated the multi-stakeholder development of a costed GFF IC in line with international standards using the One-Health tool and in collaboration with the World Bank.