Clemens Petersen is a Managing Director and Leader of the German Tax Practice with Alvarez & Marsal Tax in Munich. He is a highly experienced mergers and acquisitions (M&A) tax professional with over 15 years in the field.
Mr. Petersen has extensive experience with M&A deals such as leveraged buyouts, carve-outs and distressed transactions.
Mr. Petersen has worked with clients in various industries, including healthcare, infrastructure, financial services, consumer and digital products. He has led tax teams working on mid-market to large-cap transactions for private equity and corporate clients domestically and across regions.
Prior to joining A&M, Mr. Petersen was a Tax Partner with Deloitte in its M&A Tax practice, where he advised private equity firms and multinationals on a wide range of national and international tax matters. He was part of the Global Blockchain and Digital Assets Group and had a strong focus on tech-driven transactions.
Previously, Mr. Petersen worked at PricewaterhouseCoopers in the M&A Tax department, with a strong focus on private equity.
Mr. Petersen studied in Germany, Spain and the U.K. He earned a master’s degree in business administration (Diplom-Kaufmann) from the University of Hamburg and an MBA from London Business School. Mr. Petersen is a Chartered Tax Advisor and Chartered International Tax Advisor in Germany.
In a decision dated December 4, 2025 (V R 37/23), the German Federal Fiscal Court (BFH) clarified a crucial question in cross-border VAT law: When a German fixed establishment orders services that are ultimately used by a foreign head office, where is the place of supply for VAT purposes?
Germany’s updated e‑invoicing FAQs tighten the rules—requiring all mandatory data in the XML and embedded attachments only, creating new compliance and operational challenges for businesses.
On February 13, 2026, the German Federal Ministry of Finance (Bundesfinanzministerium or BMF) released a draft of new administrative principles on the definition and creation of permanent establishments (PEs) under domestic tax law (§ 12 AO, § 13 AO) and double tax treaties (Art. 5 OECD Model). The draft represents the most significant update to Germany’s PE framework since the last amendment in 2026 and incorporates extensive BFH case law as well as the OECD’s 2025 Model Convention and Commentary.
Germany streamlines cross-border tax dispute resolution with new electronic procedures and clarified arbitration rules — marking a major step toward greater efficiency and international tax alignment.
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