The Auditor-General responded on 18 November 2019 to correspondence from Mr Andrew Giles MP, requesting that the Auditor-General conduct an investigation to examine the effectiveness of the procurement to deliver a new global visa processing system.

The Auditor-General responded on 14 November 2019 to correspondence from the Minister for Finance, Senator the Hon Mathias Cormann, regarding annual performance statements audits. The Minister requested that the Auditor-General conduct a program of pilot assurance audits of annual performance statements of Commonwealth entities subject to the PGPA Act, in consultation with the Joint Committee of Public Accounts and Audit (JCPAA). The Auditor-General has agreed to the request and proposes to conduct a pilot to audit the 2019–20 performance statements of three entities.

The Auditor-General responded on 12 July 2019 to correspondence from Senator Mehreen Faruqi dated 3 July 2019, requesting that the Auditor-General conduct an investigation to examine the Live Exports Branch of the Department of Agriculture. The request for audit related to allegations of mismanagement and falsification of official records.

The Auditor-General responded on 3 May 2019 to correspondence from Mr Stephen Jones MP dated 7 April 2019, requesting that the Auditor-General conduct an investigation to examine the Mobile Black Spot Program. 

The Auditor-General responded on 30 April 2019 to correspondence from Ms Cathy McGowan AO, MP dated 8 April 2019, requesting that the Auditor-General conduct an investigation to examine the politicisation of taxpayer funded grant announcements (Community Sport Infrastructure grants program). 

The Auditor-General responded on 10 May 2018 to correspondence from Senators Patrick, Griff, Hanson-Young and Bernardi, Ms Rebekha Sharkie MP and the Hon. Tony Burke MP dated 24 April 2018, requesting that the Auditor-General conduct an investigation to examine the purchases of water for environmental flows in the Murray-Darling Basin. The Auditor-General provided a follow-up response on 29 April 2019. 

The Auditor-General responded on 29 April 2019 to correspondence from the Minister for Agriculture and Water Resources, the Hon David Littleproud MP, dated 23 April 2019, requesting that the audit of purchases of environmental water by the Commonwealth, and on behalf of the Commonwealth, currently listed as a potential audit be brought forward and expanded. 

The Auditor-General responded on 26 April 2019 to correspondence from Dr Kerryn Phelps AM, MP and co-signatories dated 10 April 2019, requesting that the Auditor-General conduct an investigation to examine campaign advertising. 

The Auditor-General has responded to correspondence received from Senator Griff dated 11 April 2019, requesting that the Auditor-General provide as much detail as possible regarding the negotiation and awarding of contracts in the audit of the procurement of garrison support and welfare services.

The Auditor-General responded on 18 March 2019 to correspondence from the Hon. Shayne Neumann MP dated 19 February 2019 and 14 March 2019.  The Auditor-General further responded on 1 April 2019. The correspondence from Mr Neumann requested that the Auditor-General conduct an audit into the circumstances surrounding the Department of Home Affairs' procurement of garrison support and welfare services in Papua New Guinea.