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About Deborah A. Geier

Professor Geier is a summa cum laude graduate of Baldwin-Wallace College and a magna cum laude graduate of the Case Western Reserve University Law School, where she was Articles Editor of the Law Review. Following her graduation, she clerked for the Honorable Monroe G. McKay of the United States Court of Appeals for the Tenth Circuit. Before joining the Cleveland-Marshall faculty in 1989, she was an associate in the tax group with the law firm of Sullivan & Cromwell in New York. She was a co-author of the 1st (1995), 2nd (1999), and 3rd (2004) editions of "Federal Income Tax: Doctrine, Structure, and Policy" (LexisNexis). In an effort to reduce student textbook costs, she is the sole author of "U.S. Federal Income Taxation of Individuals," an e-textbook that students can download for free from eLangdell, a division of CALI (Computer-Assisted Legal Instruction) at She is also the author of numerous academic articles.

Geier has been a Visiting Professor of Law at Washington University in St. Louis, the University of Michigan in Ann Arbor, and the University of Florida in Gainesville; she was also the John J. Sparkman Chairholder of Law (Visiting) at the University of Alabama and was the Leon M. & Gloria Plevin Professor of Law at Cleveland-Marshall (the inaugural holder of a three-year, rotating, endowed professorship). She is a member of the American Law Institute and has served both as a member of the Executive Committee and as Chair of the Tax Section of the Association of American Law Schools. She has also served as an Academic Adviser to the staff of the Joint Committee on Taxation (comprised of the members of the House Ways and Means Committee and Senate Finance Committee) in connection with a tax simplification study mandated by Congress and has testified before the Senate Finance Committee in connection with the tax consequences of home mortgage foreclosures.


Present Professor, Cleveland State University Cleveland-Marshall College of Law

Curriculum Vitae


Law and Tax Law

Research Interests

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  • Tax I (Basic Tax)
  • Tax II (Taxation of Business Enterprises)
  • Federal Income Taxation of International Transactions
  • Advanced Corporate Tax
  • Federal Indian Law

Contact Information

Office: LB 233
p. 216-687-2341


Articles (38)