lic iur Robert Desax > Walder Wyss Ltd. > Zurich, Switzerland > Lawyer Profile

Walder Wyss Ltd.
PO BOX 1236

Work Department





Robert Desax is a partner in the tax team. He works in the fields of national and international taxation. He represents clients in controversial tax matters and assists private clients regarding the tax aspects of estate and wealth planning. He regularly advises on cross-border implications of international taxation, especially on the application of double tax treaties, on issues in connection with the refund of Swiss withholding taxes in international structures, on the Swiss tax treatment of trusts as well as on the redomiciliation of individuals and businesses to Switzerland. In addition, he also advises and represents clients on corporate tax matters, especially in negotiations with tax authorities during transfer pricing audits and regarding reorganizations. Robert Desax is a frequent speaker on tax matters and is a regular author of contributions for tax publications. He was named one of Switzerland’s 20 Tax Controversy Leaders in 2015 by the International Tax Review.

Prior to joining Walder Wyss in 2016, he was a Senior Associate in a large international law firm, where he had been a member of the tax team for more than five years.


Robert Desax speaks French, German (as first and second native languages) and English.


He is a member of the International Fiscal Association (IFA), of EXPERTsuisse and of the Swiss/French Chamber of Commerce.


Robert Desax graduated from the University of Fribourg, Faculty of law, in 2002 (lic. iur. 2002 including special mention Bilingual Licentiate). In 2005 he passed the Zurich bar exam and obtained an LL.M. in international tax law from the Vienna University of Economics and Business in 2006. After that, he worked in the international tax department of one of the Big Four audit firms. In 2010 he earned the diploma as a Swiss certified tax expert.

Lawyer Rankings

Switzerland > Tax

Walder Wyss Ltd. provides cross-disciplinary support in the full range of tax matters; together with specialists from the relevant team, the tax practitioners advise on M&A, real estate, corporate finance and capital markets transactions; relocations and employee benefits; blockchain and ICOs; and wealth and inheritance planning. The client portfolio includes Swiss and foreign companies and high-net-worth individuals. Practice head Maurus Winzap is ‘highly regarded for his great and in-depth knowledge from tax planning to M&A transactions‘. Thomas Meister has a track record handling the tax aspects of corporate restructurings and Robert Desax is experienced in controversial tax matters. Fouad Sayegh is the name to note in Geneva.

Switzerland > Private client

Walder Wyss Ltd. has a strong track record in advising Swiss and foreign entrepreneurs from a variety of industries. The firm is noted for fielding the ‘complete set of skills, languages and experts‘ and the team is active in succession planning, including matrimonial, inheritance, corporate and tax law, and related disputes. Through collaboration with the labour and real estate teams, it also often advises on relocations. Kinga Weiss has more than 20 years of experience acting as an adviser to private clients, banks and family offices. She and tax specialist Stephan Neidhardt head up the Zurich practice, and Philippe Pulfer leads in Geneva. Olivier Sigg combines his private client practice with employment law. Robert Desax and Geneva-based Fouad Sayegh are other names to note.