Exclusive IR Global advisor for Tax (Law) in Germany since 2024

Dr. Claas Fuhrmann

Partner, C.K.S.S

+49 (0) 221 50067-0



  • Born in 1966
  • Studied law and political science in Marburg
  • Studied “International Commercial and Business Law” with a focus on International Taxation (LL.M.) in Norwich/England
  • Dissertation with Professor Dr. Volker Beuthien in Marburg on the topic of spinning off commercial businesses from non-profit organizations
  • Admitted to the bar in 1996, qualified tax lawyer in 2000
  • Guest lecturer at the Federal Finance Academy
  • Writing and lecturing work in the field of tax and corporate law
  • Co-author of “Widmann/Mayer – Conversion Law”; “Korn, Commentary on the Income Tax Act”
  • Since 2001, permanent author of the tax magazine kösdi (Cologne Tax Dialogue)
  • Since 2003 co-author of the tax magazine ErbStB (The Inheritance Tax Consultant, Verlag Dr. Otto Schmidt, Cologne)
  • Co-editor of the online commentary on the EStG “Fuhrmann/Kraeusel/Schiffers”, Stollfuß-Verlag, Bonn

Consulting focuses

  • Tax litigation/audit – according to JUVE since 2007 – most recently JUVE Steuermarkt 2023 – one of the leading names (“TOP 15”) in tax dispute proceedings
    for the JUVE ranking
  • Inheritance and inheritance tax law
  • Corporate law and corporate structuring
  • International tax law / advice on moving away
  • Sales tax law – according to JUVE tax market – most recently in 2022 – often recommended

Publications (selection)

  • The career of the football player Justin B. Knipser – Or: Football doesn’t work without tax law -, in: Traces of friendship, transformations – taxes – football, commemorative publication for Prof. Dieter Mayer on his 65th birthday on September 19th, 2020, Stollfuß- Publisher, Bonn
  • Commentary on Section 24 UmwStG in “Widmann/Mayer – Conversion Law” (as of October 2020)
  • Commentary on § 9 EStG for “Korn” Income Tax Act (as of March 2020)
  • Loss of financial aid for private assets in the focus of the legislature – new legal regulations in Section 17 Paragraph 2a EStG and Section 20 Paragraph 6 EStG, NWB 2020, 150
  • Co-editor of the e-commentary on the EStG “Fuhrmann/Kraeusel/Schiffers”, Stollfuß-Verlag, Bonn
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About C.K.S.S


We are a specialist law firm which, since its founding, has focused on tax law and the associated legal areas such as corporate law, business law and inheritance law. Our clients include medium-sized and large companies, but also private individuals, public and non-profit corporations, foundations and professional associations throughout Germany, which we serve from our offices in Cologne and Munich.

As generalists, we can draw on a broad technical overview of all relevant aspects – as specialists with proven extensive technical know-how, we provide personal advice and support at the highest level.

Our consultants have extensive knowledge of all areas of tax law, but at the same time they are – each in their own right – specialists in one or more areas of tax law. In addition to the taxation of partnerships, non-profit law, company succession, sales tax and customs law, all areas of criminal tax law and the respective individual tax laws are covered at the highest technical level. But the most important characteristic of our consultants is their passion for what they do.

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Exclusive IR Global advisor for Tax (Law) in Germany

Partnerschaft mit Sitz in Köln AG Essen PR 1764