The ANAO is organised into two service groups and two support branches:
- The Assurance Audit Services Group provides independent assurance on the financial statements and financial administration of all Australian Government entities.
- The Performance Audit Services Group contributes to improved public sector administration and accountability by adding value through a program of performance audits of Australian Government entities, and related products.
- The Professional Services Branch provides professional services such as technical support, quality assurance, professional newsletters and technical seminars.
- The Corporate Management Branch provides the office with administrative support, including the coordination of corporate governance activities, human resources, finance, external relations, IT support and building services.
The ANAO is located in Canberra, with a small number of staff based in Sydney.
The organisational and senior management structure of the ANAO at 30 June 2011 is shown in Figure 1.