Abstract
The main objective of the research is to identify the extent of the impact of these mechanisms of corporate governance on the effectiveness and efficiency of the internal control system, and this research was conducted on a sample of 12 companies for the period from 2017 to 2021. It was concluded that the application of governance mechanisms helps to increase and improve the effectiveness of the internal control system as a tool for the provisions of control and control over all uncontrolled behaviors, and the absence of legislation or legal text in Iraq directly concerned with governance, or its principles, or Its mechanisms, except for some paragraphs that overlap within other laws that regulate the work of companies, and that the size of the board of directors of all banks and in most of the research years was within the scope (determined in accordance with Article (104) of the amended Companies Law, which ranged from (5) to (9). Members, The banks varied in the concentration of ownership rates, as they reached the highest percentage during the research period with an arithmetic mean (94.00%). Islamic lowest percentage with the arithmetic mean (of 43.67%), and the sample banks varied in their results as Related to the percentages of administrative ownership, as the Kurdistan Bank obtained the highest arithmetic mean of (87%), while Al-Thiqa Investment Bank came in last place
