David A. Breen

David A. Breen

Adjunct Professor


Mr. Breen is a Senior Counsel with the IRS Office of Chief Counsel in Philadelphia where he litigates cases in the United States Tax Court. Mr. Breen began his career with the Internal Revenue Service’s Examination Division in 1974.

Before joining the Office of Chief Counsel in 1987, he was an Internal Revenue Agent and Field Examination Group Manager. Currently he works offshore compliance issues, including IRS’s voluntary disclosure initiatives.

Mr. Breen frequently speaks before professional organizations on the topic of offshore tax evasion. In addition to being the 2010 IRS Attorney of the Year, he has also been a recipient of IRS Counsel’s National Litigation Award and the IRS Commissioner’s Award.


B.S. 1976 LaSalle University

M.B.A. 1980 LaSalle University

J.D. 1984 Widener University School of Law


Graduate Tax Programs:

Villanova University, Master of Laws in Taxation

Villanova University, Master of Taxation