Boxall returned to the Australian Public Service in 1997, having been appointed Secretary of the Department of Finance.[6] He stayed with the finance department as it transitioned to become the Department of Finance and Administration.[7] While head of the Finance Department, Boxall was known as being at the forefront of outsourcing services from the public service, including for IT.[8] He also oversaw efforts to engage the private sector to manage the Department's $2.5 billion property portfolio, with the aim to tap into a strategic partnership as an avenue for resources and expertise.[9]
Boxall worked as a commissioner Australian Securities and Investments Commission between January 2009 and November 2011, leaving to take up a job in the NSW Government as Chairman of the Independent Pricing and Regulatory Tribunal.[13][14]
Boxall was named an Officer of the Order of Australia in 2007 for service to economic and financial policy development and reform in the areas of accrual budgeting, taxation and workplace relations.[17]
^ abBoxall, Peter, "Chapter 11: Reflections of an 'unabashed rationalist'", in Wanna, John; Vincent, Sam; Podger, Andrew (eds.), With the Benefit of Hindsight: Valedictory Reflections from Departmental Secretaries 2004-11, p. 99