Pierre-Yves Vuagniaux advises Swiss and foreign legal entities on a broad range of domestic and international taxation, such as corporate, banking, finance, VAT and real estate taxation. His expertise further covers governance, transaction structuring, business transfer, as well as advising family offices and private clients on tax matters. He has over 20 years of experience and has advised and represented multinational and local companies, as well as wealthy individuals (UHNWI), both in negotiations with tax authorities and in tax litigation.

Pierre-Yves Vuagniaux also specializes in trusts and estate law.


  • Since 2022 Partner at Altenburger
  • 2017-2022 Partner at Tavernier Tschanz, Geneva
  • 2007-2016 Director at Credit Suisse AG, Solution Partners, Head of tax, Geneva
  • 2001-2006 Senior consultant at PricewaterhouseCoopers Ltd., Legal and tax services,  Geneva
  • 1999-2001 Associate at Borel & Barbey, Geneva
  • 1997-1999 Lawyer-secretary at the Swiss Asylum Appeal Commission, Bern
  • 1994-1996 Junior associate at Mentha & Associés
  • 1994 Legal Trainee at the Geneva Supreme Court of Justice


  • 1997 Bar admission, Geneva
  • 1994 Master of Laws, University of Geneva

Bar / Court Admission

At all Swiss courts

Special Engagements

  • Lecturer at the Institut for Studies in Finance and Banking (ISFB), Geneva
  • Lecturer at the Haute Ecole de Gestion (HEG), Geneva


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Speaking Engagements

Speaking Engagements

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Full List of Publications

Further Publications

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