Speaker details

Biography

Jean has authored several works on Luxembourg and international taxation. He chairs the scientific committee of the Luxembourg branch of the International Fiscal Association (IFA) and is a member of the International Bar Association (IBA). He was a member of the Conseil de l’Ordre des Avocats (Council of the Bar Association) of Luxembourg and currently chairs the “taxation” committee of the Bar. The professional directories Chambers and Partners, Legal 500, and ITR have respectively ranked Jean as "Star Individual", "Hall of Fame”, and "Highly regarded” in the field of taxation. Publications - "Dossiers Internationaux Luxembourg”, 8th edition, Francis Lefebvre, 2019, co-author - "Livre jubilaire" [Jubilee Book] of the International Fiscal Association Luxembourg, Legitech, 2008 and 2018, Head of the editorial committee - "How fixed is a permanent establishment ?", Kluwer, 2013 - "Droit fiscal international” (questions of Luxembourg and international taxation), Promoculture, 1999 (1st edition), 2005 (2nd edition), 2013 (3rd edition) - "General Principles of Luxembourg Taxation", Anthemis, 2010 Conferences Chair of the general panel, IFA Annual Conference, London, 2019 on Investments Funds and Interest deductibility and the implementation of BEPS Action 4 Professional Affiliations and Leadership Positions - Member, International Fiscal Association (IFA) - Member of the Board of Directors of the Luxembourg branch of the IFA - Member, International Bar Association - Member, Society of Trust and Estate Practitioners (STEP) - Head of the Tax Committee of the Barreau de Luxembourg (Luxembourg Bar Association) - Luxembourg representative to the tax committee of the CCBE (Conseil Consultatif des Barreaux Européens - Council of Bars and Law Societies of Europe) Bar Admissions - Avocat à la Cour (Barrister admitted to plead before the Court), Luxembourg, 1995 - Avocat (Lawyer), Paris, 1991 Education - Ph.D, Luxembourg, 2012 - HEC, Paris, 1991 - DESS (Postgraduate degree), International Tax Law, Université de Paris-Sud XI, 1991 - Master’s Degree, Political Science, Université de Strasbourg, 1989 - Master’s Degree, Law, Université de Strasbourg, 1989 Professional Career - Founder, Schaffner, law firm, May 2026 - Partner, Allen & Overy Luxembourg and Allen Overy Shearman Sterling SCS, 2000 – 2026 - Lecturer (chargé de cours), Luxembourg tax law, University of Luxembourg - Lecturer, international tax law, Université de Valenciennes et Hainaut-Cambrésis, France, 2002 - 2004 - Partner, Loeff Claeys Verbeke, Luxembourg, 1999 - Senior Associate, Loeff Claeys Verbeke, Luxembourg, 1995-1998 - Lecturer, International Tax Law, Institut Supérieur du Commerce, Paris, 1994 – 1995 - Associate, Bureau Francis Lefebvre, Paris, 1991-1995