The overall goal of this research is to investigate Integrated Financial Management Information Systems as well as procurement performance of Taita Taveta County Government. The research sought to evaluate the effect of electronic service delivery, information sharing, supplier involvement as well as e-budget allocation at Taita Taveta County Government. The research was underpinned by the following theories, the instrumental theory, resource-based theory, diffusion of innovations theory as well as system theory. The research adopted an evocative research design since it gives a perfect result as well as the physiognomies allied with it at an explicit point in time. The target population for the research was 97 respondents that gave the sample size of 78 respondents. The research adopted census method to select the respondents from the population. The study obtained primary data through a structured questionnaire. The researcher gave out the questionnaires and pick them later as a data gathering method. The study revealed that electronic service delivery has a significant influence on procurement performance (β=0.544; p<0.05). Similarly, it was established that information sharing significantly predict procurement performance (β=0.181; p<0.05). The study notably established that supplier involvement and e-budget allocation significantly predict procurement performance (β=0.176; and β=0.295) respectively. The study concludes that by boosting electronic service elements including service speed, efficacy, and financial reporting time, procurement performance would be improved. Moreover, by enhancing factors like information security, fraud detection, and reaction time, IMFIS sharing information enhances the delivery of products and results and significantly boosts the effectiveness of the procurement process. Besides, accountability and effectiveness are promoted at the county governments through the implementation of the IFMIS project, which involves suppliers in all