The audit examined the ATO's management of its relationship with tax practitioners (tax agents and the wider group of professionals working on taxation matters for clients). However, our main focus was the ATO's management of its relationship with tax agents because they are the core element of the tax practitioner grouping and their role is fundamental to the effective operation of the tax system. The objective of the audit was to assess how well the ATO manages its relationship with tax practitioners, focussing on selected ATO relationships with tax practitioners, in particular its regulatory relationship with tax agents, its service support relationship with tax agents and its relationship with tax agents and members of the wider tax practitioner group in the professional bodies as key stakeholders in tax administration.