Mark Allison Esq.


Mark D. Allison is a Member in Caplin & Drysdale's New York office. Mr. Allison's practice involves complex federal, state, and cross-border tax controversy and litigation matters; related civil, criminal, and regulatory proceedings; and internal investigations. He represents multinational corporations, financial institutions, and high net worth individuals and professional athletes in proceedings before the Internal Revenue Service, the U.S. Department of Justice, the U.S. Attorneys' Office, and other government regulators.  Mark is also an adjunct professor, New York University School of Law, 2009-present.

An experienced trial attorney, Mr. Allison has litigated before the U.S. Courts of Appeals, the U.S. Tax Court, the U.S. Court of Federal Claims and in bench and jury trials in federal district court. He also advises clients in pre- and post-transaction review and analysis of potential tax disputes for purposes of ASC 740, Schedule UTP and other regulatory reporting and internal risk management. Mr. Allison also serves as the general counsel to a New York City-based hedge fund manager.

Mr. Allison previously served as an attorney-advisor to the Honorable Julian I. Jacobs of the United States Tax Court, and as a law clerk to the Honorable Joseph C. Small of the New Jersey Tax Court.


LL.M., New York University School of Law (1996)

J.D., American University Washington College of Law (1995), summa cum laude

Bloomberg BNA Tax Management Portfolios:

524 T.M., Deductibility of Illegal Payments, Fines, and Penalties (co-author)