Joseph Merhai

Swiss & International taxation

Finance

Investment Funds

Corporate and M&A

Art Law

Joseph Merhai

Joseph Merhai is specialized in corporate tax law, international tax planning, mergers and acquisitions (M&A), as well as in strategy and transfer pricing. He represents individuals and companies in tax law and tax criminal law matters.

He has extensive experience in banking tax law, as well as in the taxation of investment structures (collective investment schemes and wealth structures) and commodity trading companies. Additionally, he serves on the Board of Directors of several companies.

He is ranked in Chambers Global (tax), Legal 500 and Best Lawyers.

Education

IMD, High Performance Boards Program (2022)

IMD, Advanced High Performance Leadership Program (2019)

Saïd Business School, University of Oxford, DFS (2014)

IMD, High Performance Leadership Program (2012)

Swiss Tax Academy, Federal Diploma as a Tax Expert (2006)

Admitted to the Geneva Bar (2002)

University of Geneva, Faculty of Law, Diploma of Advanced Studies in Tax Law: The Taxation of Derivative Products according to the LIFD (1998)

Experience

Aegis: partner (since 2024)

BianchiSchwald Attorneys (formerly BCCC): Partner specialized in Tax Law, Corporate Tax, M&A, and Financial Services (2014 – 2024)

Recent Rankings

Best Lawyers in Switzerland – Geneva Region

Ranked in Tax Law since 2019.


Legal 500:

“Expert in corporate tax law, international tax planning, mergers and acquisitions, as well as strategy and transfer pricing, Joseph Merhai also acts as counsel in domestic and international tax criminal proceedings. He has extensive experience in banking tax law, as well as in taxation of investment structures (investment funds and corporate holdings) and commodity trading companies”.


Chambers & Partners 2024 Global guide (3 Years Ranked) :

“Joseph Merhai joins the rankings this year following client feedback and his involvement in the firm’s tax mandates. He is well placed to advise on corporate tax and international tax structuring, with further expertise in tax audits and transfer pricing mandates.”

Languages

French, English, German

Selected Deals

Funds

Advising Index Ventures on Swiss legal and tax aspects of fundraise for their venture and growth funds (Index Growth VII - USD 1.5 billion and Index Ventures XII - USD 800 mios).
2024
Advising Highland Europe on Swiss legal and tax aspects the fundraise and structuring of their Fund V (EUR 1 billion).
2023
Advising Medicxi Ventures on Swiss legal and tax aspects legal aspects of their fundraise for Medicxi IV (USD 400 million).
2023
Advising Alpstone Capital (Switzerland) SA, the Swiss entity of Alpstone Capital group, a macro trading hedge fund, cross-border tax and Swiss legal matters.
2023
Advising Index Ventures on all legal aspects of their second Origin fundraise for Index Origin II (USD 300 million).
2022
Advising Index Ventures on Swiss legal and tax aspects of their fundraise for Index Growth VI (USD 2 billion) and Index Ventures XI (USD 900 million)
2021
Advising Index Ventures on Swiss legal and tax aspects of their first “Origin” fundraise for Index Origin I (USD 200 million).
2021
Advising Highland Europe on Swiss legal and tax aspects of their fundraise for Highland Europe IV (USD 700 million).
2021
Advising Medicxi Ventures on Swiss legal and tax aspects of their fundraise for their first secondary vehicle Medicxi Secondary I (USD 200 million).
2020
Advising Index Ventures on Swiss legal and tax aspects of their fundraise for Index Growth V (USD 1.2 billion) and Index Ventures X (USD 800 million).
2020
Advising Medicxi Ventures on Swiss legal and tax aspects their fundraise for Medicxi III (USD 400 million).
2019
Advising Highland Europe on all legal aspects of their fundraise for Highland Europe III (USD 463 million).
2019

Transactions and litigation

Advising US venture capital fund Spark Capital on their investment in grape insurance AG a Swiss fully digital insurance.
2024
Advising a single-family office and its UBO on philanthropy management, aircraft ownership and operations, and Swiss residence considerations.
2024
Advising a Swiss museum on the expected donation of dozens of paintings from a French art collector, covering import duties, VAT, and inheritance aspects.
2024
Acting as lead Swiss counsel in a cross-border VAT fraud investigation (EUR 300 million) linked to alleged VAT fraud in Germany, UK and USA, including defence, appeals, and coordination with foreign criminal proceedings.
2024
Advising group Casino on the tax aspects of supply chain and distribution agreement.
2023
Advising Mubadala on Swiss and international tax aspects of investments, financing, and development projects, including in the Swiss company wefox.
2023
Representing a Swiss wealth manager in an on-going alleged tax fraud litigation in Germany and the UK.
2022
Advising Medicxi Ventures on its spin-out from Index Ventures, on multiple funds launches and on the IPO of ObsEva SA on Nasdaq.
2021
Working with a Swiss bank on tax and regulatory aspects of investments in a fintech company, including tailored tax structuring.
2021
Advising multiple HNWIs and UHNWIs on Swiss and international tax aspects of their relocation from the UK to Switzerland, including restructuring of a family trust and real estate holding structure.
2020

Publications by Joseph Merhai

L’Art et la valeur

article summarizing « L’Art et la valeur, Volume 2 », SteuerRevue 9/2025, (p 627-641)

L’Art et la valeur, Volume 2

(Art and value), Schulthess, 2025

La clause de la nation la plus favorisée dans la CDI Suisse-Inde, conséquences d’interprétations

co-auteur avec Laurent Schenker (Avril 2024)

« Investment funds 2024 »

co-auteur avec Thomas Pasquier, Chambers Global Practice Guide (p. 421-427) , mars 2024.
Lire la publication

TVA et e-commerce

co-auteur avec Thomas Pasquier, Revue Douanière + TVA, 2023

L’Art et la valeur

co-auteur avec Thomas Pasquier, Schulthess, 2022

Analyse de l'arrêt 2C_546/2021 du 31 octobre 2022 du Tribunal

co-auteur avec Thomas Pasquier, Publication BianchiSchwald

Les instruments financiers : Aspects juridiques et fiscaux / Financial instruments : legal and tax aspects

co-auteur avec Nicolas Béguin et Alexandre Richa, Bâle (Helbing & Lichtenhahn), 2021.

Droit de la propriété intellectuelle et droit fiscal: enjeux actuels d’une collaboration ou d’une confrontation autour de la licence box

co-auteur avec Laurent Muhlstein, in Steuer Revue – Revue fiscale, Cosmos Verlag, Bern, 2020)

Aspects fiscaux en rapport avec le Coronavirus - update 17 avril 2020

co-auteur avec Sébastien Maury, Newsletter BianchiSchwald, 2020

Conventions de double imposition, accords fiscaux et secret bancaire

co-auteur avec Christophe Léchaux, in Les enjeux juridiques du secret bancaire, Actes du colloque 2011 de l’Institut de lutte contre la criminalité économique (éd. ILCE), Neuchâtel, 2011

Le processus d’évaluation en droit commercial et en droit fiscal – de la diversité vers la cohérence

Gesellschafts- und Kapitalmarktrecht (GesKR) N° 3, 2010, p. 330 et ss.

« Recent Indian Tax Case Law: A Swiss Perspective »

L’Expert-comptable Suisse, N° 3, 2010, p. 529 et ss.

co-auteur avec Lionel Aeschlimann, in Conlon, International Tax Series – Suisse, 2007

« Lump Sum Taxation, Swiss Federal Tax Authorities Provide Clarification »

co-auteur avec Bernhard Zwahlen, Bulletin for International Fiscal Documentation (IBFD), 2003, p. 289 et ss.

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