Despite the increasing interest of Egyptian GeneralAuthorities in information technology and its use to improve performance and develop public services, a review of the literature in this field revealed the scarcity of research that focused on evaluating the impact of information technology on the performance of these Authorities. In this context, this study aims to test the impact of information technology on the institutional performance of General Authorities through a field study conducted on a sample of 162 Employees in a number of service General Authorities. The study reached that Information technology has contributed to improving the institutional performance of Service General Authorities, through the following: Improving the efficiency of General Authorities through, rapid information Accessibility, supporting decision-making, reducing the number of paper transactions, and improving the efficiency of resources. Improving the effectiveness of General Authorities through, building and developing institutional capacities, increasing the Authorities' ability to achieve their goals, sustaining activities & projects, and concluding cooperation & community partnership agreements. Increase customer satisfaction, and improve services quality. Increasing the ability of General Authorities to contribute to the development and achieving societal goals.