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Fiona Dillon, CTA

Deputy Commissioner, Australian Taxation Office

  • Deputy Commissioner Fiona Dillon has a long history of senior tax leadership roles in both the Australian public service and the private sector. Within the ATO Fiona has led the ATO’s Workplace Relations area, helped shape the strategic direction of the ATO’s Public Advice and Guidance and was a longstanding member of the ATO’s Public Ruling Panel and a member of the ATO’s General anti-avoidance rule Panel. In her current role as Deputy Chief Tax Counsel, Fiona Dillon provides technical leadership within the ATO, in particular on corporate transactions and international matters. 

    Prior to this role she served as Minister-Counsellor (Taxation) in the Australian delegation to the OECD based in Paris where she chaired the Joint International Taskforce on Information Sharing and Collaboration (JITSIC) on behalf of the Commissioner and represented Australia in other OECD taxation initiatives. 

    Fiona is admitted as a legal practitioner in Australia and holds a Master of Taxation, Bachelor of Laws (with Honours) and Bachelor of Commerce. In 2017 she was a Tax Institute finalist for Corporate Tax Advisor of the Year.

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