Öz
In this study, it has been tried to measure the quality of independent auditing based on the information presented in the transparency reports submitted by independent audit firms. In December 2012, independent audit companies conducting audits of Public Interest Institutions (PIE) were obliged to report their annual transparency reports to the Public Oversight Authority (KGK) and to publish them on their own websites. In the study, audit income is considered as a quality indicator and the effects of the factors associated with the quality of independent auditing on the independent audit income are examined. The data of this study were obtained from the 2017-2018-2019 transparency reports of the independent audit companies, which are available on the website of the Public Oversight Authority and published transparency reports. Multiple linear regression analysis and frequency analysis in SPSS program were used as analysis methods in the study. The number of partners, the number of key managers, the number of responsible auditors, the audit team, the number of PIE audits, the status of being included in the international network and the ownership of related audit firms of the independent audit companies have been determined as the variables associated with the quality of independent auditing. According to the results of the analysis, it has been determined that the variables of the number of partners and the number of key managers affect the independent audit quality negatively, the number of PIE audits and the status of being included in the audit network positively affect the independent audit quality, and the effect of other variables on the independent audit quality has changed over the years.