Welcoming Two German Tax Experts to the U.S.
GTM is a U.S. member firm of WTS Global, the leading independent, non-audit tax practice worldwide, with representation in more than 100 countries. As a unified tax practice globally, our partnership handles international tax planning, global tax compliance, and country-specific tax issues for multinational companies of all sizes. For our clients, that connection means one coordinated team for cross-border tax matters, wherever their business reaches.
To further strengthen our connection with the WTS Global network, we are thrilled to welcome two senior WTS Germany tax professionals to the United States for the next few years, bringing German tax expertise directly to U.S. soil and time zones.
Bringing German Tax Expertise to the U.S.
Dr. Gabriele Rautenstrauch (Gabi) will be based in Washington, D.C., starting in July 2026. She is an International Tax Partner at WTS in Munich, Germany, and a German Certified Tax Advisor (Steuerberaterin). With more than two decades of experience in international taxation, she advises German multinationals as well as U.S. inbound groups on, inter alia, international restructurings, permanent establishment matters, withholding tax, and EU tax law. She is widely recognized as one of the leading experts on global minimum taxation (Pillar Two).
- She joined WTS in Germany in 2018 and served as Co-Head of WTS’s Global Service Line International Corporate Tax from 2019 to 2024.
- Gabi has previously spent more than 15 years with KPMG, including a two-year secondment to the European Commission’s Directorate-General for Taxation and Customs Union (DG TAXUD) in Brussels.
- Gabi lectures regularly at universities, tax congresses, and the training academy of the German Federal Ministry of Finance (Bundesfinanzakademie).
- She also heads the Working Group on Taxation of the Accounting Standards Committee of Germany and regularly publishes in international tax journals.
Justus Eisenbeiss will be based at GTM headquarters in Wayne, PA, starting in September 2026. He is an International Tax Director at WTS in Frankfurt, Germany, with a strong focus on international corporate tax and M&A. He has more than a decade of experience advising multinational corporations on domestic and international corporate tax matters, including corporate reorganizations, international tax planning, and M&A transactions.
- Before joining WTS in October 2025, he worked at PwC and most recently at Baker McKenzie in Frankfurt.
- Drawing on his time at U.S. law firm Baker McKenzie in Germany, Justus has extensive experience advising U.S. multinational enterprises on outbound investments into Germany.
- Justus has been a German Certified Tax Advisor (Steuerberater) since 2019 and a Certified Advisor in International Tax Law (Fachberater für Internationales Steuerrecht) since 2022.
- He holds an Advanced Diploma in International Taxation (ADIT, Chartered Institute of Taxation, London), an LL.M. in Tax Law (Queen Mary University of London), and an LL.B. in Business Law with a specialization in Tax Law (University of Osnabrück).
What This Means for You
Going forward, Gabi and Justus will share regular updates on German and international tax hot topics as part of this blog series and host dedicated webinars. Their insights will provide practical guidance for U.S. groups navigating German tax developments and for German groups active in the U.S. Their presence gives our clients a shorter path to answers on cross-border questions, backed by the full WTS Global network.
To connect with Gabi or Justus directly, reach out to your GTM contact. Check back soon for more insights from our expanding global team.
