As the outsourced internal audit function (IAF) and real earnings management are attracting widespread attention among firms, it is vital for stakeholders to understand how these two practices affect the quality of financial reporting. This study examines how the expertise of an external IAF provider reduces real earnings management. Using a pooled panel data regression of 928 firm‐observations, we find that the external IAF provider's firm‐specific expertise is significantly associated with lower real earnings management. Conversely, we report no such association for external IAF providers with industry expertise. These findings are robust under a battery of sensitive analyses. The results of additional analyses show that the industry and firm‐specific expertise of external IAF provider interact with each other, resulting in a significant reduction in real earnings management. We also find significant differences in the IAF quality between big4 and second‐tier audit firms in which the latter are associated with lower real earnings management and the former with higher real earnings management. Finally, we observe low real earnings management for important clients and/or those with influential CEOs if the external IAF provider has firm‐specific expertise.

Purpose This study aims to examine the effect on audit efficiency of outsourced internal audit function (IAF) providers with industry and/or firm-specific expertise. Drawing on relevant studies from external and internal audit literature, the authors assume that such IAF providers are associated with greater audit efficiency as proxied by audit report lag and audit fees. Design/methodology/approach Based on a sample of firms listed on the Omani capital market during 2005–2019, the pooled regressions are used to test the developed hypotheses. The authors use the market share approach to identify outsourced IAF industry expertise providers and tenure to measure the firm-specific expertise of outsourced IAF providers. Findings The authors find that industry outsourced IAF providers are not associated with shorter audit report lag and lower audit fees. The authors also find that firm-specific expertise outsourced IAF providers are associated with a greater reduction in audit report lag and audit fees. These conclusions are robust under a battery of analyses. The significant contribution of firm-specific expertise outsourced IAF providers to audit efficiency is incremental when abnormal audit report lag and audit fees analysis is conducted. Originality/value The results are the first to attest to the contribution of outsourced IAF with firm-specific expertise. They also show that industry expertise held by outsourced IAF providers does not contribute to audit efficiency.

PurposeThis study investigates the consequences of the key audit matter (KAM) disclosure requirement by considering two salient audit proxies: audit fees and audit report lag. This investigation is relevant because most auditors worldwide are required to expand their audit report including discussion on key matters faced in the audit engagement. However, the emerging literature on the implications of KAM is inconclusive.Design/methodology/approachUsing a distinctive dataset of 601 year-observations for firms listed on the Omani capital market over 2012–2019, this study employs pooled panel data regression with robust standard error.FindingsResults indicate that auditors increased their fees considerably during the period of KAM but substantially shortened audit report lag. Conversely, using the KAM period as a sample, the authors find marginal or insignificant evidence for the effect of the number of KAM on both proxies. In additional analyses, this study shows that entity-level risk KAM is associated with higher fees and shorter audit report lag, while KAM related to account-level risk does not have the same effect. Interestingly, it is observed that KAM disclosure is strongly associated with higher fees and high-quality audit even when the auditors issue their report in a shorter time.Originality/valueThis study contributes to the limited research examining the consequences of KAM in emerging markets. It is also the first to show that KAM is associated with shorter audit report lag.