Senior Tax Advisor
Certified Tax Expert

Walter Sommer

Seeing the people behind the taxes: The experienced tax advisor for businesses and individuals.

Barbara Baltensperger
+41 44 254 80 28


Walter Sommer has more than 20 years of experience in advising companies and individuals on tax law.

Previously, he held a senior position at one of the Big Four consulting firms. In addition, Walter Sommer was responsible for the tax matters of an internationally operating Swiss technology group as Head of Corporate Tax.


2004 Certified Tax Expert
1997 Lic.iur UZH (MLaw)


German, English

Work Experience

since 2020 Senior Tax Advisor at MME
2017 - 2020 Director, Deloitte AG, Zurich
2007 - 2017 Director, Ernst & Young AG, Zurich – Head of Business Tax Compliance
2004 - 2007 Head Corporate Tax, Bühler AG, Uzwil
2002 - 2004 Senior Manager, Ernst & Young AG, Zurich
1997 - 2002 Arthur Andersen AG, Zurich


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