A Dissertation Submitted in Partial Fulfillment of the Requirement for the Degree of Masters of Business Administration Major on Corporate Management of Mzumbe University.The study was carried out to explore the role of mobile money transfer in promoting small medium enterprises, a case of Kinondoni District in Dar Es Salaam region. The study has specific three research objectives which were to determine transaction costs charged by mobile money transfer, to determine the effectiveness the mobile money transfer towards small medium enterprises and to determine challenges facing SMEs in using Mobile Money Transfer services. This study specifically drawn population from SME in Kinondoni, Dar Es Salaam as key respondents. The study was involved a sample size of 90 respondents. The study used convenience and purposive sampling technique to obtain the desired sample size. The data was collected using questionnaire and interview. The study used descriptive and inferential statistics in data analysis. The study revealed that the study revealed that the educated were likely to conduct business transaction by using MMT service than uneducated. The study indicated that the service provided is expensive. It is recommended that mobile money service provider should improve this service adequately and ensure the system has produced a receipt which simples auditing trials and verification purpose. Mobile money transfer service provider should consider on improving security system of the mobile money system so as to protect the user against fraudsters, so it is further recommended that users should be educated on the guideline to protect them from fraudster.