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International Tax lawyers at CMS

CMS Tax advisers include lawyersadvocatessenior economists, and renowned specialists, who offer a full range of tax advice in all areas of local and international tax.

Our lawyers advise on all business tax issues:

  • Mergers & acquisitions
  • Transfer pricing
  • VAT
  • Dispute resolution
  • International taxation
  • Private clients

As a group, we combine our expertise to drive important issues for our clients through regular and pertinent communicationexpert guides and thought leadership.

We provide industry-focused expertise and coordinated advice on cross-border projects: clients benefit from an integrated organisation committed to high standards of service.

We interact on a local and regional level with tax administration.

Please get in touch with the Head of the Tax group below.

Here you can find a list of all lawyers globally: click here.

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International desk


Language spoken


Mario d'Avossa
Italy, Milan
de L'Estoile-Campi Agnès
Agnès de l'Estoile-Campi
France, Neuilly-sur-Seine
Agnès de l’Estoile Campi is a partner within the International Taxation team. She mainly works for French multinational groups, assisting them with their international projects (taxation of international...
Picture of Diego de Miguel
Diego de Miguel
Spain, Madrid
Diego de Miguel is Head of the Tax department at CMS Albiñana & Suárez de Lezo. He has extensive experience in ongoing tax advice, support to family businesses and family offices and in the defence...
Picture of Olivierde Saint Chaffray
Olivier de Saint Chaffray
France, Neuilly-sur-Seine
Olivier de Saint Chaffray joint CMS Francis Lefebvre Avocats's Taxation Department in 1994. As an expert in tax matters, his practice focuses on providing advice (legal opinion or documents) and on litigation...
Pierre Dedieur
Pierre Dedieu
France, Neuilly-sur-Seine
Pierre has been working with CMS Francis Lefebvre Avocats since 1999 when he joined the international tax team, and became a partner in 2009.Pierre advises :on all areas of personal tax and estate planning...
Björn Demuth
Dr. Björn Demuth
Rechtsanwalt, Tax Adviser | Fachanwalt für Steuerrecht (Certified lawyer for tax law) | Head of Tax, CMS Germany
Germany, Stuttgart
Björn Demuth’s practice focuses on corporate compliance, succession planning and tax law. He is a tax advisor and certified tax lawyer with long-standing experience advising his clients on the German...
Patrick Dewerbe
Portugal, Lisbon
Patrick Dewerbe’s main areas of activity are tax legal consultancy, with particular emphasis on cross-border operations, Private Equity operations, corporate reorganisations, structured financing, property...
Arnaud Donguy
Arnaud Donguy
France, Neuilly-sur-Seine
Arnaud Donguy is a partner in the Direct Contributions Department of CMS Francis Lefebvre Avocats. Arnaud specialises in providing advice and assistance with business taxation and corporate tax, namely...
Picture of Philippe Donneaud
Philippe Donneaud
France, Neuilly-sur-Seine
Philippe Donneaud started his career in the Taxation Department of CMS Francis Lefebvre Avocats, which he joined in 1995 and where he has been a partner since 2007.He covers all aspects of direct taxation...
Picture of Pierre-Jean Douvier
Pierre-Jean Douvier
France, Neuilly-sur-Seine
Pierre-Jean Douvier specialises in international law. He co-manages the International team. His four main areas of expertise are: - advice to private clients (family office, legal, regulatory, immigration...