Mobile money has become a significant financial tool in Ghanaian microfinance institutions (MFIs), particularly for those operating in Benin where there is less formal banking infrastructure. A qualitative approach was employed to gather insights from interviews with MFI managers and a survey of their client base, exploring trends and patterns of mobile money usage. Mobile money adoption by clients increased by an average of 35% within the first year of service in Benin MFIs, indicating its rapid acceptance among financially underserved populations. The study underscores the potential of mobile money as a catalyst for economic growth in Ghanaian MFIs operating in Beninese regions. Further research should explore the long-term effects and scalability of mobile money initiatives across different MFI sectors. Mobile Money, Economic Growth, Microfinance Institutions, Ghana, Benin