Performance Audit Scope and the Independence of the Australian Commonwealth Auditor-General

The introduction of performance auditing through the 1979 Australian Audit Act amendments continues to challenge the Australian Commonwealth Auditor-General's independence. By international consensus, performance auditing includes effectiveness issues. In contrast, the Australian amendments omit reference to 'effectiveness' issues and do not define 'efficiency' audit. Interpretation of these omissions varies. The Australian National Audit Office sees no prohibition on including effectiveness audit. But successive governments have attempted to curb the CAG's independence by excluding effectiveness auditing as a forbidden intrusion into policy areas; an exclusion that the ANAO rejects in relation to audit of effectiveness at operational levels. This study investigates the practical effect of these conflicts on performance audit scope. The results show that the ANAO consistently goes beyond audit of economy and efficiency to make substantive recommendations on effectiveness issues.