Partner

Julien Saiac

Languages

French
English
German

Social media

Julien Saïac joined CMS Francis Lefebvre in 1998 and became a partner in 2009.

He practices in tax law with a focus on international taxation. He advises clients on the tax aspects of international acquisitions and restructuring, property investments, and transfer pricing across jurisdictions.

Julien Saïac advises and represents large French and foreign companies, investment funds, and individuals on a wide range of international tax issues.

Awards & Recognitions

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Tax Law - Lawyer of the year

Best Lawyers 2024
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Tax Law - Best Lawyer since 2016

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Publications

Fiscalité Internationale n° 3-2025, dossier : Fiscalité des transferts de siège de sociétés dans un contexte international (with Mary Lédée) (September 2025)
Fiscalité Internationale, chronique d'actualité Patrimoine : commentaire de l'arrêt CE du 13 novembre 2023 n° 465852 Sté Carmejane LLC (with Juliette Dépinay) (February 2024)

Memberships & Roles

Lecturer, international taxation, Master II programme in international corporate transactions and taxation (OFIS), Université Paris I Panthéon-Sorbonne (since 2010)
Member of the French Institute of Tax Lawyers (IACF), Co-Chair of the IACF’s International Tax Commission (since 2019) and member of the Board of Directors (since 2022)
Member of the International Fiscal Association (IFA)

Lectures list

IACF’s International Tax Commission conference, Mobilité internationale des sociétés : problématiques juridiques et fiscales (19/06/2025)
IACF’s International Tax Commission conference, La mobilité internationale des personnes physiques (with M. Romain Victor, Maître des Requêtes (master of petitions) Conseil d'Etat) (20/06/2024)
IACF’s International Tax Commission conference, Actualité de la jurisprudence en matière de fiscalité internationale (05/12/2023)

Education

CAPA (certificate of aptitude for the legal profession) (1996)
DESS (Diplôme d’études supérieures spécialisées) in business law and taxation, Université Paris I - Panthéon-Sorbonne (1996)
DU (Diplôme universitaire) in European tax law, Université Paris I - Panthéon-Sorbonne (1995)
Graduate, Ecole des Hautes Etudes Commerciales (HEC) (1995)

Practice Areas

Tax Tax audits and litigation Customs and international trade Taxation of groups and corporate restructurings Investment funds and private equity taxation European law and constitutional tax disputes Taxation of industrial and commercial groups Property tax International mobility Taxation of transactions

Insights

Global Reach

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