Bettina Banoun has extensive experience in work related to tax law, litigation, company law and EEA law. Ms. Banoun is admitted to the Supreme Court and litigates regularly before Norwegian courts of justice. She also has experience in litigation before the EFTA Court and with complaints before the EFTA Surveillance Authority.

Ms. Banoun has a PhD from the University of Oslo and wrote her thesis on "Tax avoidance", and she has legal training from Oxford University, University of Oslo and Harvard Law School. She is the author of several articles regarding tax law.

Ms. Banoun is ranked as one of Norway's most prominent tax law experts by Chambers and Partners , Legal 500 and in the Norwegian Financial Daily’s annual lawyers survey.

Clients benefit from Bettina Banoun's considerable experience in contentious tax matters. Clients say that she is "efficient, pleasant and provides quick feedback."

Chambers Europe, 2018

Professional Experience

  • Partner, Wiersholm, 2004
  • Lawyer, BA-HR, 2002-2004
  • Research fellow, University of Oslo, 1997-2001
  • In-house lawyer, Telenor (Norwegian Telecom), 1996-1997


  • Admitted to the Supreme Court, 2006
  • Dr. juris (Phd), University of Oslo, 2003
  • Visiting Scholar, Harvard Law School, 1997
  • Cand. jur., University of Oslo, 1995
  • Magister Juris in European and Comparative Law (M.jur),
  • Oxford University, 1993