Nicolas Trefois currently serves as a Senior Tax Specialist at CALYSTA NV since July 2024. Previously, Nicolas accumulated valuable experience at Deloitte Belgium from September 2013 to May 2015, holding positions as Tax Manager, Senior Tax Consultant, and Junior Tax Consultant. Following this, Nicolas spent nearly nine years at EY, where the roles included Senior Manager - Business Tax Services and Director. Nicolas holds a Master's degree in Business Administration and Management from Facultés Universitaires Notre Dame de la Paix (2002-2007) and a Master's degree in Tax Law/Taxation from ESSF - Ichec (2007-2009).
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