Abstract
The provision of management advisory and other services by auditors to their audit clients has long been regarded, by regulators in Australia and overseas, as a threat to auditor independence. Evidence of the impact of non‐audit services on auditors' independence has been derived using case studies and questionnaires and has focused on perceptions of independence. The aim of this paper is to investigate whether the provision of non‐audit services impairs auditor independence by testing for an association between the provision of non‐audit services and auditors' reporting opinions. Based on publicly available information for Australian listed companies for several years, the evidence suggests that auditors' decisions to qualify their opinions are not affected by the provision of non‐audit services.

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