Tax Associate, Attorney at law

Tatjana Wingeier

Tatjana Wingeier is an attorney at law and consults companies and individuals in Swiss national and international tax matters. Her main areas of expertise include corporate restructuring, merger and acquisitions, international administrative assistance, and tax litigation. Tatjana Wingeier is also co-author of various publications on international administrative assistance.


  • Tax Associate at Riedweg & Partner (since 2020)
  • Research assistant and PhD student at the Chair of Swiss, European and International Tax Law at the University of Zurich under Prof. Dr. iur. René Matteotti (2017 – 2020:)
  • Admission to the Solothurn Bar (2018)
  • Various court and law internships in the Canton of Solothurn (2016-2017)
  • Universities of Zurich and Lausanne: MLaw (2016)


German, English, French


all Swiss Courts


Publications & Speeches by Tatjana Wingeier