자발적 감사와 감사기준 완화가 조세회피에 미치는 영향

As the Act on External Audits was amended in 2014, the level of statutory audits increased from 10 billion to more than 12 billion. In 2009, it was eased from 7 billion won to 10 billion won. There was little research on the effect of amendment of auditing standards. However, as the auditing standards were further eased in 2014, the need to discuss the impact of the standard relaxation has increased.
Prior research on the effectiveness of statutory audits has analyzed the role of auditors in the financial accounting perspective. However, the change of statutory audit range effects on small-sized companies more than large-sized company. The reason is that small-sized companies' financial reporting is more connected to tax reporting.
In practice, for smaller private firms, the effect of changes in scope of audit on tax avoidance may be more important than the impact on the quality of accounting information. This is because accounting and corporate tax tend to be more consistent with smaller firms, and an important users among accounting information is the tax office.
In this study, we analyzed the effect of tax avoidance of the companies in voluntary audits, which were exempted from statutory audit obligations due to the relaxation of auditing standards. In addition, we tried to confirm whether the audit characteristics such as the size of the auditor at the time of the voluntary audit and the replacement of the auditor have additional effect on the voluntary audit transition.
As a result of the analysis, it was confirmed that tax avoidance measured by the measure following Desai and Dharmapala(2006) increased when a company turned into voluntary audit status. There was a significant positive relations on tax avoidance in case of the BIG4 auditor and voluntary audit combined.
In addition, there was no significant difference in whether there was a difference in tax avoidance between the continuous voluntary audit firm and the voluntary audit-changed firm. Audit traits of voluntary audit increases tax avoidance, but tax avoidance of firms that continue to receive voluntary audits is not greater. This is a result of reconfirming that the same company can change tax avoidance according to the relaxation of audit standards.
This study is not only the first study to observe the tax avoidance of a small unlisted corporation responding to the institutional change of the audit standard, but also the study which confirms how the statutory audit itself can affect the tax avoidance. The results of this study are expected to contribute to the development of the accounting system, the tax administration, and the taxation system by deducing additional problems on the role of accounting information, taxation, and auditing.