Dissertation Submitted to School of Business in Partial Fulfillment of the Requirement for The Award of Master’s Degree in Business Administration (Corporate Management) of Mzumbe UniversityThe aim of this study is to examine factors influencing deposits mobilization in financial institutions in Tanzania, a case of Tanzania Postal Bank lake Zone. Specifically the study evaluated the impact of information communication technology, banks goodwill, varieties of services rendered and bank’s location on deposit mobilization. This case study employed a quoter sampling technique, where 120 customers and 40 bank staff were sampled. However, the study captured 105 customers’ respondents and 40 bank officials from the four branches of Tanzania Postal bank in Lake Zone were interviewed as representatives in this study. The results from the analysis of both customers and bank officials’ revealed that information communication technology, varieties of services offered and location of the bank are among the most important factors to facilitate deposit mobilization. Also its the hypothesis have a positive impact on deposits growth were strongly supported by the results of this study. Regression results were presented, where t-statistics and standard deviation were used to support and cement the professional arguments. From the study, recommendations are made on improvement on the use of information communication technology in financial institutions to allow more utilization of electronic money and credit cards. The study recommends also to commercial banks to design a way to make neglected semi-urban and rural population to get the banking services, and outsourcing some of the operational activities like mobile phone banking and Automated Tellers Machine (ATM) for easing deposits mobilization and saving unnecessary expenses. The study also recommends that bank should increase deposit interest rate to attract more deposits in the banks after consultations with central bank.