The global financial sector is undergoing structural reforms and system improvement in their internal operations and activities. These global reforms in the financial sectors have been occasioned by globalization and technology revolution around the world. In view of the rapid changes, institutions both public and private institutions have experienced various limitations in their quest to reach their objectives. This study therefore formulates three objectives to investigate the effects of internal control systems on financial performance of listed banks in Ghana. In this quantitative study, 300 representatives from twelve listed banks were engaged. Descriptive and regression analysis was performed on the field Data. The study result shows that Information and communication have a weak significant effect on financial performance. There was no significant effect between Monitoring and financial performance. The study therefore recommends that managers of listed Banks must invest more on information and communication in order to improve performance.

Globally, internal controls serve many important purposes for public private and public help organizations. There is however an increasing call for better and improved internal control systems especially in firms that are listed on public market. However, internal control systems, irrespective of how well conceived and implemented cannot provide absolute assurance of management and boards regarding the achievement of objectives. This research focused on the three components of internal control systems namely control environment, risk assessment, and control activities. This study therefore formulated four objectives and investigated how risk assessment, control activities, and control environment affects the performance of Ghanaian banks. In this quantitative study, representatives from twelve listed banks were engaged. Descriptive and regression analysis was performed on the field data. The study result shows while Risk assessment has a strong significant effect on financial performance, Control environment and Control activities, have a weak significant effect on financial performance. The practical implication of the study is that, when assessing the performance of banks, risk areas must be examined critically to reduce or eliminate their impacts on bank performance.