Fiona McLafferty is a Managing Director in Tax Controversy in Deloitte. Fiona is a practising Solicitor, an Accredited Mediator and an Associate of the Irish Tax Institute. She is a former Tax Appeal Commissioner, acting as the quasi-judicial decision-maker in all tax disputes. Prior to her role as a Tax Appeal Commissioner, Fiona was a Solicitor in the Revenue Commissioners for 15 years providing a legal service to the tax authority in all aspects of its business. She was seconded to DG TAXUD (Taxation and Customs Union) in the European Commission for a period in 2016.