The objective of the audit was to assess the effectiveness of the Australian Taxation Office's activities to promote employer compliance with Superannuation Guarantee obligations.

The Auditor-General responded on 17 April 2025 to correspondence from Senator the Hon Michaelia Cash dated 21 March 2025, requesting that the Auditor-General conduct an investigation to examine the Incolink grant. 

The Auditor-General responded on 14 February 2020 to correspondence from Senator Sarah Hanson-Young dated 20 January 2020, requesting that the Auditor-General investigate allegations concerning procurement of water entitlements in the Murray-Darling Basin. 

The Auditor-General responded on 28 April 2025 to correspondence from Senator the Hon Anne Ruston dated 31 March 2025, requesting that the Auditor-General conduct an investigation to examine a grant awarded to the Gallipoli Turkish Cultural Foundation.

The Auditor-General responded on 22 November 2019 to correspondence from Senator Katy Gallagher dated 25 October 2019, requesting that the Auditor-General conduct an investigation to examine government spending on external contractors and consultants. 

The Auditor-General responded on 10 September 2021 to correspondence from Mr Adam Bandt MP dated 25 August 2021, requesting that the Auditor-General conduct an investigation into the management of the Beetaloo Cooperative Drilling Program. 

The Auditor-General responded on 10 September 2021 to correspondence from Ms Madeleine King MP and Senator the Hon Kristina Keneally dated 26 August 2021, requesting that the Auditor-General conduct an investigation to examine the Beetaloo Cooperative Drilling Program because of probity concerns. 

The audit objective was to assess the effectiveness of the management of international travel restrictions during the COVID-19 pandemic.

The Auditor-General responded on 2 May 2022 to correspondence from Senator Rex Patrick dated 5 April 2022, requesting that the Auditor-General conduct an investigation to examine the process in making statutory and other senior appointments across the whole government over the six months preceding the application of caretaker conventions prior to the 2022 Federal election. 

The Auditor-General responded on 14 January 2020 to correspondence from the Hon Catherine King MP, requesting that the Auditor-General conduct an investigation to examine programs supporting regional development and jobs growth. The Auditor-General also responded on 2 April 2020 to follow-up correspondence from the Hon Catherine King MP dated 3 March 2020, alerting the Auditor-General to evidence given in Senate estimates that relates to the original correspondence. The Auditor-General provided a follow-up response to the Hon Catherine King MP on 24 July 2020.