The county governments continue to face challenges around the world. In the County Government of Nakuru, the auditor general continues to document diverse financial performance challenges. The purpose of this study was to examine the effect offinancial management practices on the  financial performance of county governments in Kenya. This study was guided by the following specific objectives; to examine the role of internal auditing on the financial performance of County Government of Nakuru, to establish the role of internal controls on the financial performance of County Government of Nakuru, to examine the role of budgeting on the financial performance of County Government of Nakuru and to examine the influence of account payables management on the financial performance of County Government of Nakuru. The study was based on the agency theory and the resource based theory. In this study explanatory research design was utilized. Specifically the study targeted 128 respondents who were employees in auditing, internal controls, budgeting and account receivables. A sample size of 97 respondents derived through Yaro Yamane formula was used in the study. This proposed study utilized structured questionnaires to obtain data for the study. This study used content validity to find out whether or not the proposed research tools were valid. This study used Cronbach’s Alpha coefficient to test the reliability of the research questionnaires. Both descriptive and inferential statistics were done. Chi Square test for independence, correlations, and multiple linear regression analysis were used. The study established that financial performance was strongly and significantly (p