The origin of the auditor’s income and audit quality: The Spanish case

Abstract

Previous studies point out the existence of a relationship between auditor’s specialization and audit quality. Beginning with this idea, the more important the auditing activity is over the audit firm’s business and the greater specialization in such activity, the more conservative the signing auditor will be in the issuance of the audit report. Using the quantitative materiality as audit quality proxy, we examine the effect of consultancy services’ fees and the signing audit partners’ relevance on materiality values. From the hand-collected real amounts of quantitative materiality informed by 995 Spanish non-listed client-year sample, we conclude that more effort on consultancy services lead auditors to apply higher materiality numbers. Our results also show that audit firms employ higher materiality estimations when the signing audit partners gain importance within the audit firm, supporting the idea of a risky shift. Our findings are consistent with the mainstream that affirms there are other factors, beyond quantitative ones, that influence the determination of materiality amounts. This study contributes to the existing research by using archival data that mirrors auditors’ quantitative materiality judgements and its implication for financial reporting.