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Board members

Mrs Garnon has over 30 years of experience in the field of taxation having been a senior partner with KPMG. She was admitted as a tax partner in 2000 and went on to hold senior executive roles with the firm.

From 2009 to 2015, Mrs Garnon was the National Managing Partner for KPMG Australia’s Taxation Division. During this time, she was also a member of KPMG’s Global Tax Steering Group which oversees KPMG’s Global Tax Practice.

Previously, Mrs Garnon was the Global Partner in Charge (2006 – 2010) of KPMG’s International Executive Services Business spanning 128 countries and 2,500 staff. She has extensive experience of advising both domestic and global organisations.

Mrs Garnon’s background includes Bachelor of Economics (Accounting Major) and Bachelor of Laws from the Australian National University. She is a Fellow of Chartered Accountants in Australia and New Zealand, a Chartered Tax Advisor and a Graduate of the Australian Institute of Company Directors. She is also a member of Chief Executive Women.

Other current roles: Chair and Non Executive Director of Alexium International Group Limited; Non-Executive Director of Australian Rail and Track Corporation, Non-Executive Director of Resolution Life Australia Pty Ltd, trustee of the Sydney Cricket and Sports Ground Trust, Non-Executive Director and Chair of the Audit and Risk Committee for Creative Partnerships Australia; Non-Executive Director of The Smith Family, a Member, Finance, Audit and Risk Committee, The University of Sydney and a Non-Executive Director and Treasurer of Women Corporate Directors Australia Limited.

Rosheen’s appointment as chair is for a 3 year period from 26 March 2020.

Dr Julianne Jaques is a commercial barrister specialising in taxation and has over 25 years’ experience as a taxation professional. She maintains chambers in both Melbourne and Sydney and has appeared in all higher Federal, Victorian and New South Wales courts.

Dr Jaques is a Chartered Accountant and a Chartered Tax Adviser. She holds bachelor degrees in economics and law from Monash University and a Doctorate in Juridical Science from the University of Melbourne. Her doctoral thesis was on corporate taxation.

Formerly a solicitor with Freehills (now Herbert Smith Freehills) and an accountant with Coopers & Lybrand (now PricewaterhouseCoopers), Dr Jaques was also a senior tax adviser to the Federal Government during the GST and business tax reforms of 1999 to 2001 when she worked extensively on tax policy.

Dr Jaques is a part-time member of the Independent Parliamentary Expenses Authority and the Tax Practitioners Board.

The Treasurer appointed Dr Jaques as Acting Chair of the Board from 11 July 2019 to 10 January 2020.

Mr Mitchell is a qualified Chartered Accountant with 27 years of experience (until March 2017) as Chief Financial Officer and Company Secretary of ASX-listed Cochlear Limited, a world leading medical device developer, manufacturer and seller, with a market capitalisation of over $10bn.

Mr Mitchell is currently a non-executive director of ASX-listed Fisher & Paykel Healthcare, Sonic Healthcare and Osprey Medical, as well as privately owned Australian life sciences company, Q’Biotics Group. He is also a member of the Australian Board of Taxation and a director of the South East Sydney Local Health District Board.

Previously, he served on the New South Wales Medical Devices Fund, was Chairman of the Group of 100 (an Australian body for senior finance executives), and Chairman, Standing Committee (Accounting and Auditing), for the Australian Securities and Investments Commission (ASIC).


Dr Pizzacalla is a Senior Partner with BDO in Melbourne Office. Dr Pizzacalla’s business experience, including acting as Managing Partner of his predecessor firm, gives him a strong appreciation of both the strategic and operational issues facing business and provides relevance to the technical tax advice he delivers.

Dr Pizzacalla completed his PhD in relation to the taxation of SMEs in Australia and is one of the few tax practitioners whose work has been cited in Australia’s Parliament. Dr Pizzacalla is also a member of The Tax Institute’s Victorian Technical Committee, and was previously the former Chair of The Tax Institute’s National SME Sub-Committee, as well as being a former Victorian State Councillor.

Dr Pizzacalla was appointed to the Board in January 2015 and was reappointed for a further three year term commencing 1 January 2018.


Mrs Wolff has over 27 years’ experience as a qualified tax professional with over 17 years’ experience in senior tax roles within the mining industry. She is currently the Global Head of Tax for Rio Tinto responsible for all tax matters relevant to Rio Tinto.

Mrs Wolff is a Chartered Tax Advisor and Fellow of Chartered Accountants Australia and New Zealand.

Mrs Wolff was appointed to the Board in May 2015 and was reappointed for a further three year term commencing 14 May 2018.


Mr Yaxley has over 30 years corporate tax experience including 20 years as a tax partner with KPMG Perth office. He is currently a Senior Partner at KPMG. He provides tax advice to a wide range of international and Australian mining, oil and gas, mining services, property and agriculture clients on structuring inbound and outbound investments, financing, joint ventures and mergers and divestments.

Mr Yaxley is a Chartered Tax Advisor and Fellow of the Institute of Chartered Accountants in Australia. Craig has been extensively involved in mining industry tax issues and policy developments in his previous role as Chairman of the Tax Committee for the Association of Mining and Exploration Companies Inc.

Mr Yaxley is also Treasurer and Director of Black Swan State Theatre Company.

Mr Yaxley was appointed to the Board in January 2015 and was reappointed for a further three year term commencing 1 January 2018.


Mr Vanderkley is currently Special Counsel at PwC leading their tax transparency and tax governance practice. He has over 30 years’ experience in the field of taxation, mainly within the financial services sector. Prior to joining PwC in 2016, he held senior positions at GE Capital Asia Pacific; including chief financial officer and Board member of most GE Australian entities from 2003 to 2016. In 1995 he was appointed Director of Taxation for GE ANZ; from 1998 to 2003 he was Director of Taxation for GE Capital Asia Pacific. His background includes a Graduate Diploma of Law (Taxation) from Monash University and a Bachelor of Business (Accounting, Law and IT) from Federation University.

Mr Vanderkley was appointed as a part-time member for a 3 year period from 26 March 2020.


Mr Jordan was previously Chair of KPMG New South Wales and Partner in Charge of the New South Wales Tax and Legal Division of KPMG. He is the former Chair of the New Tax System Advisory Board and was also the State Chair of the New South Wales Division of the Taxation Institute of Australia. He was appointed by the NSW Government to the Games Advisory Committee of the Sydney 2009 World Masters Games.

Until his appointment as Commissioner of Taxation in January 2013, Mr Jordan was a member of the Sydney Children’s Hospital Foundation Board, the Board of the Bell Shakespeare Company, a member of the Audit Risk Committee of the Art Gallery of NSW and Chair of the Committee for Sydney.

Mr Jordan has been a member of the Board since its inception in September 2000. He was Deputy Chair from January 2005, was appointed to the position of Chair in June 2011 and retired from this position in December 2012 following his appointment as Commissioner of Taxation.

Mr Jordan has been an ex officio member of the Board since January 2013.


Dr Kennedy was appointed Secretary to the Treasury with effect from 2 September 2019.

Prior to his appointment as Treasury Secretary, Dr Kennedy was Secretary of the Department of Infrastructure, Transport, Cities and Regional Development between September 2017 and August 2019.

During his nearly 30 years in the public service, Dr Kennedy has held other senior positions including Deputy Secretary at the Department of the Prime Minister and Cabinet; Deputy Secretary at the Department of Industry, Innovation and Science; Deputy Secretary at the Department of the Environment; Deputy Secretary at the Department of Climate Change and Energy Efficiency, and the Head of Secretariat of the Garnaut Climate Change Review – Update 2011.

Dr Kennedy began his public service career in 1992 as a cadet at the Australian Bureau of Statistics. Prior to joining the public service, he trained and worked as a nurse.

Dr Kennedy has served on a number of boards and is a member of the Reserve Bank Board, Council of Financial Regulators, Trans-Tasman Council on Banking Supervision, Board of Taxation, New Zealand Treasury Board, the Sir Roland Wilson Foundation and the Centre for Market Design Advisory Board.

He is also the Institute of Public Administration Australia (IPAA) ACT President.

Dr Kennedy was awarded a Public Service Medal in 2016 for outstanding public service in the area of climate change policy.

Dr Kennedy holds a PhD and a Masters in Economics from the Australian National University, and a Bachelor of Economics (First Class Honours) from the University of Sydney.

Mr Quiggin is the First Parliamentary Counsel of the Office of Parliamentary Counsel (OPC), which is responsible for drafting all principal legislation, all regulations and a range of legislative instruments for the Australian Government, including taxation legislation. OPC is also responsible for the publication of Commonwealth legislation through the Federal Register of Legislation.

Mr Quiggin’s initial 7 year appointment as First Parliamentary Counsel started on 13 May 2004. He has since been reappointed twice with his most recent reappointment being for a further 5 years, commencing on 14 May 2018. He has been a drafter with the Office of Parliamentary Counsel for over 30 years and has drafted legislation covering a wide range of topics including taxation, native title and immigration.

Prior to working at OPC, Mr Quiggin worked for a number of years with the Tax Office and the Administrative Appeals Tribunal.

Mr Quiggin has been an ex officio member of the Board since January 2004.