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Guillaume Valois



Valois Guillaume
Guillaume Valois



Guillaume’s activity focuses on tax efficient structuring of domestic and cross border M&A, private equity and real estate transactions.

He regularly advises investment funds, managers and multinational groups.

Guillaume also has a strong expertise in tax audits and dispute resolutions.

Guillaume is a recognised practitioner by « Best Lawyers » since 2020 in Tax Law

"Guillaume Valois regularly advises well-known multinationals, French corporates, public sector clients and private equity firms on the tax elements of M&A transactions. He also has experience assisting with the tax aspects of real estate fund formation. One client praises him as "prompt, communicative and very practical with his solutions"."
Chambers Europe 2021 - France (Tax)

"The practice also has a growing presence in high-profile corporate, private equity and real estate transactions, done by leading investment funds, with Guillaume Valois and counsel Charles del Valle as the key experts."
Legal 500 EMEA 2021 - France (Tax)

"Leading Individual (Transactional / Corporate Tax)"
Legal 500 EMEA 2021 - France (Tax)

"Guillaume Valois is a great professional with great expertise."
Legal 500 EMEA 2020 – France (TAX)

Band 4
Chambers Europe 2020 - France (Tax)

Guillaume Valois is best known for his transactional tax practice, advising clients on the tax aspects of cross-border transactions. He is described by one impressed source as a tax lawyer with "great experience in private equity."
Chambers Europe 2020 - France (Tax)

"A new arrival to the firm, Guillaume Valois has a growing track record advising clients on the tax structuring of private equity operations. He acted for Weinberg Capital Partners on the joint acquisition with Groupe Philippe Ginestet of Besson Chaussures."
Chambers Europe 2019 - France (Tax)

“Guillaume Valois focuses his practice on the tax aspects of transactions, including LBOs and joint ventures. Clients praise him for being "reactive, intelligent, precise and very commercial."” 
Chambers 2018 - France (Tax)

Guillaume is a recognised practitioner in Legal 500 2018.

News & insights

A coal power plant in Vietnam

Publications: 21 OCTOBER 2021

Indonesia passes carbon tax bill as part of GHG regulation effort

There are two important legislative developments in Indonesia as the country attempts to meet its obligations under the Paris Agreement. Indonesia’s House of Representatives (Dewan Perwakilan Rakyat…

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Exterior of a modern office block with mirrored glass

News: 19 OCTOBER 2021

A&O advising Zopa on its USD300 million fundraising led by Softbank Vision Fund 2

Allen & Overy is advising digital bank Zopa on its latest round of fundraising. The bank, which was the world’s first peer-to-peer lender and is one of the UK’s newest digital banks, has raised…

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Three colleagues discussing data on charts and tablets

Publications: 18 OCTOBER 2021

Green pass: the obligation of green certifications in the working environments

The measures on the obligation to possess Green Certification Covid-19 for employees in the public and private sectors taking effect from 15 October 2021.

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renewable energy

News: 05 OCTOBER 2021

Allen & Overy advises Air Liquide and TotalEnergies on the structuring and creation of the world’s largest clean hydrogen infrastructure fund

Allen & Overy advises Air Liquide and TotalEnergies on the creation and structuring of the world's largest investment fund exclusively dedicated to the development of clean hydrogen infrastructure…

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Private Equity

Real Estate



Allen & Overy LLP
52 avenue Hoche
75008 Paris

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Admitted to the Paris Bar, 1998


DEES, Tax Law, University of Burgundy, Dijon, 1997

Degree, Business Law, University of Nancy II, Nancy, 1996