Romain Tiffon
Romain is a Partner in the International & Corporate Tax department at ATOZ.
A tax professional since 2006, Romain has experience in structuring Pan-European alternative investment funds across all asset classes, as well as coordinating tax structuring advice and implementation for a wide range of institutional investors. He has also extensive experience in structured finance, mergers & acquisitions transactions, and sovereign wealth funds, and is currently co-heading ATOZ's technological initiatives, via ATOZ Solutions.
Romain is a member of the Tax Committee of the American Bar Association (ABA), New York State Bar Association (NYSBA), International Bar Association (IBA), and of the Tax Group of the British Chamber of Commerce (BCC) in Luxembourg.
Romain is admitted to practice as an Attorney and Counselor-at-Law in New York State, the United States. He holds a Master’s degree in Tax Law from the Université Panthéon Sorbonne (Paris I), a Master’s degree in Business Law from Université Panthéon Assas (Paris II) and a LLB degree from the London School of Economics and Political Science.
He speaks English and French.
Practice Area
Panel
- Contributing Author
Qualified Year
- 2009
Experience
- ATOZ Tax Advisers (Luxembourg) (2011 - Present)
- Clifford Chance (2006 - 2010)
Membership
- American Bar Association
- New York State Bar Association
- International Bar Association
- British Chamber of Commerce, Luxembourg
Qualification
- Attorney at Law, New York (2009)
Education
- London School of Economics (1999 - 2003)
- Paris-Pantheon-Assas University (2004 - 2005)
- University of Paris I: Pantheon-Sarbonne (2005 - 2006)
1 Contributions by Romain Tiffon
PRACTICE NOTES
Luxembourg Business Law Guide: Corporate Structures, Financing, Employment, Contracts, Tax, FDI, Merger Control and Data Protection (Updated January 2026)
Updated in January 2026
Introduction
Despite its modest size, the Grand Duchy of Luxembourg (Luxembourg) ranks among the world’s powerhouses for commerce and stands as a leading European financial and industrial centre. It draws investment banks, asset managers, funds and holding vehicles, as well as firms in information and communication technology and the space sector, from across the globe, positioning it as a favoured gateway into the EU and a major business hub. Owing to political, social and legal stability, and to the determination of its political class to nurture a business-friendly setting, Luxembourg has earned a name for pro-business legislation and administration. This guide, for companies looking to establish in Luxembourg, sets out a comprehensive overview of the key features of Luxembourg law that should be considered before beginning operations in Luxembourg. That said, however complete it appears, it is not an all-inclusive account of Luxembourg law, and bespoke legal advice should always be obtained before creating a business in Luxembourg.
The business environment
Luxembourg is a representative democracy with a parliamentary...
Commercial
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