Recently, financial performance has been the foremost requirement for the financial institution to survive in the market and this aspect demands the researchers' emphasis. Thus, the present study investigates the impact of joint auditing and governance on the financial performance of Iraqi banks. The study also examines the mediating role of a strong financial system among joint auditing, governance and financial performance of the Iraqi banks. The researchers collected the data using survey questionnaires from the audit department of the Iraqi banks. The researchers also checked the association among variables using SPSS-AMOS. The outcomes indicated that joint auditing and governance have a positive association with the financial performance of Iraqi banks. The outcomes also exposed that a strong financial system significantly mediates among joint auditing, governance and financial performance of the Iraqi banks. The study guides the policymakers in developing new policies related to improve the financial performance of the banks using effective joint auditing and governance systems.