The audit objective was to examine the administrative effectiveness of the ATO's use of AUSTRAC data. The audit reviewed the use of AUSTRAC data across three of the ATO Business Service Lines (BSLs) namely, Large Business and International (LB&I), Small Business (SB) and Individuals Non Business (INB). These are the most significant BSLs in terms of revenue collection. The audit focussed on the ATO's use of AUSTRAC data at the strategic and operational levels and its management of AUSTRAC data. Aspects examined include the ATO's relationship with AUSTRAC as well as training, data quality, data privacy and security issues.