International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement


Thierry Lesage

Arendt & Medernach

2026_ITR World Tax Notable Practitioner.png
Position: Partner
Rating:
  • Notable Practitioner
Jurisdictions:
Languages:
Dutch
English
French
Italian
Biography

Thierry Lesage is a Partner in the Tax Law practice of Arendt & Medernach. He advises on both national and international tax issues. He is active on private equity, real estate and finance transactions. He is a member of the Luxembourg Bar, the American Bar Association, the International Bar Association and the International Fiscal Association where he was appointed as national co-reporter for the 2003, 2005 and 2014 Congresses. Moreover, he is a member and former Vice-Chair of the fiscal commission of the Luxembourg Bankers' Association. Prior to joining Arendt & Medernach, he worked as a tax manager with one of the Big Four firms and as head of the corporate tax department with a bank in Luxembourg. Thierry Lesage holds a Master's degree in law from the Université de Liège (Belgium) as well as a Master's degree in fiscal law from the Université Libre de Bruxelles (Belgium). He is the co-author of the Luxembourg chapter of the International Guide to the Taxation of Holding Companies published by the IBFD (Amsterdam). Thierry Lesage is recommended as tax lawyer in the major league tables including Best Lawyers, Legal 500 and Chambers Europe.

Key practice areas

Advises on both national and international tax issues. He is active on private equity, real estate and finance transactions.

Sector specialisations
  • Tax Law
Bar admissions
  • Luxembourg Bar
  • American Bar Association
  • International Bar Association
Association memberships
  • International Fiscal Association where he was appointed as national co-reporter for the 2003, 2005 and 2014 Congresses
  • member and former Vice-Chair of the fiscal commission of the Luxembourg Bankers' Association
Academic qualifications
  • Master's degree in law from the Université de Liège (Belgium)
  • Master's degree in fiscal law from the Université Libre de Bruxelles (Belgium)
Address:
Arendt & Medernach - 41 Av. John F. Kennedy, 2082
Luxembourg
Tel:+3524078789435 Email:Contact this practitioner Website:https://www.arendt.com/