Some evidence on the impact of internal audit on external audit fees

Abstract

We examine responses of 2,160 internal auditors to a global survey of the internal auditing profession carried out by the Institute of Internal Auditors Research Foundation from 2009 to 2013. We found that when the internal audit function's (IAF's) quality is high, the external audit fees will be low. This result confirms the substitution effect. We also found that when internal audit hours work increase, audit fees will be high; indicating a complementary effect between these variables. The internal auditor can be the external audit assistant and fully engaged in specific monitoring and control tasks. Nevertheless, he also may be an independent partner of an external audit and fully engaged in corporate governance. If the external auditor apprehends that audit risk is low due to the quality of the IAF, he will require lower fees. If the IAF's work devoted to external audit is high, a signal of a great firm commitment in reinforcing corporate governance is transmitted. Such signal proves the company's willingness to invest more in improving the external audit quality and fees will be high.

A need for assurance: Do internal control systems integrate environmental, social, and governance factors?

“…In this regard, several studies investigate the determinant of audit fees for external auditors, especially for listed companies agreeing on the following factors: number of transactions, size, the complexity of audit and audit risk, the sum of account receivable and inventory, information technology, and subsidiaries (Kuo & Lee, 2018; Cameran, 2005; Amba & Al‐Hajeri, 2013; Mohammad Hassan & Naser, 2013). Other studies explore the relationship between the audit fee reduction associated with audit firm rotation (Corbella et al, 2015) and the relation between the audit fee paid and internal audit quality (Cameran et al, 2015; André et al, 2016; Hazami‐Ammar, 2019). These studies show a negative relationship between the internal audit function's quality and the external audit fee.…”

Reorentasi Audit Internal Untuk Melawan Korupsi Pengadaan

“…Au-ditor internal adalah sebagai lini ketiga pertahanan fraud (BarrPulliam, 2019;Luburić, 2017). Auditor internal memiliki fungsi tempat latihan para manajer di masa depan (Hazami-Ammar, 2019;Zuberi & Mzenzi, 2019). Organisasi internasional, seperti IIA mulai melirik kembali untuk mengontruksi peran auditor internal melalui standar internal control dan struktur kedudukan auditor internal.…”