From 2018 to 2022, The Challenge Initiative (TCI) employed a cofinancing strategy in Nigeria to support states in their family planning and reproductive health (FP/RH) budget allocations and expenditures.n Thirteen states accessed and used a total of 2.03 billion Nigerian naira (US$5.6 million) from the TCI Challenge Fund, a mechanism to incentivize domestic funding for FP programming.n State governments demonstrated substantial improvements in their fiscal commitment and releases with a 4-year average of 78.7% release of committed resources toward FP programs.