내부감사 품질과 조세회피 ―공기업 상임감사 직무수행 실적평가를 중심으로―

This study analyzes the relationship between internal audit quality and tax avoidance of public corporations. The public corporation pursues the same profit as the private corporation, and the management of the public corporation pursues the opportunistic behavior and the private benefit, and there is incentive to try the tax avoidance. The results of this study are as follows. First, it is reported that the quality of the internal audit improves the efficiency of the public corporation or decreases the earnings management(Shin and Kim 2015). Therefore, if the quality of internal audit of public corporations is increased, opportunistic behavior of manager and pursuit of private benefit will be suppressed, and tax avoidance of public corporations will be reduced. In this study, we conducted an empirical analysis on the relationship between internal audit quality and tax avoidance by using objective and quantitative data “evaluation of performance of standing auditing job performance” as a substitute for internal audit quality. As a result of the empirical analysis on the effect of internal auditing evaluation on the tax avoidance of public corporations that introduced the performance evaluation of the public corporation auditing performance from 2008 to 2012, The degree of avoidance was significantly decreased. The results of this empirical study show that the introduction of performance evaluations of public corporations' performance audits has been recognized as an evaluation of the quality of standing auditors and internal audit organizations, thereby inducing the improvement of internal audit quality. This effectively prevents manager’s behavior and private benefit pursuits, It seems that tax avoidance is effectively reduced. The empirical results of this study indicate that the evaluation of the perfor- mance of the public corporation 's audit, introduced by the government in 2007, plays a positive role not only in transparency of public corporations but also in transparency in taxation of public enterprises. Therefore, the results of this study are meaningful for internal audit related policy makers because the improvement of internal audit quality of public corporations is important evidence for enhancing public interest by eliminating the inefficiency of public corporations.