French West Africa gained a unified autonomous federal budget only in 1904.

Evidence

On October 4, 1904, a decree was signed creating a fully autonomous federal budget, which French West Africa had lacked since 1895. The governor general was freed from the burden of administering Upper Senegal through an authority at Kayes; because of their potential wealth, these territories were formed into a new colony, Upper Senegal-Niger, and given their own lieutenant governor. — Alice L. Conklin, A Mission to Civilize_ The Republican…, 158