Bob Wellen is Associate Chief Counsel (Corporate) of the Internal Revenue Service.

Before joining IRS, Bob practiced tax law for more than 40 years. His practice included planning and negotiating corporate acquisitions, joint ventures, financings, equity offerings and spin-offs and developing corporate structures, representing taxpayers in administrative tax controversies and litigation and advocating policy positions before the Treasury Department and IRS. He also served as an arbitrator in commercial cases involving tax issues, such as tax sharing agreements, and as an expert witness on tax issues.

Bob received his B.A. from Yale College (magna cum laude, Phi Beta Kappa) in 1968, his J.D. from Yale Law School in 1971 and his LLM (Taxation) from Georgetown University Law Center in 1974.

Bob served on active duty in the U.S. Navy Judge Advocate General’s Corps during 1971-1975. Thereafter, he joined Fulbright & Jaworski (now Norton Rose Fulbright) and became a partner in that firm in 1979. He joined Ivins, Phillips & Barker as a partner in 1993. He joined the IRS Office of Chief Counsel in 2015.

He has written numerous articles for tax publications, including the Practising Law Institute proceedings, TAXES, Tax Notes and The Journal of Taxation. He lectures frequently at professional education programs, including programs sponsored by the American Bar Association, the Practising Law Institute, American Law Institute, Tax Executives Institute, Federal Bar Association, District of Columbia Bar, New York State Bar Association, New York University, University of Chicago, Penn State University/Dickinson College of Law, University of California at Los Angeles, University of Miami, William & Mary Law School and the Southern Federal Tax Institute.

He is a member of the American Bar Association Tax Section, in which he served as chair of the Corporate Tax Committee. He is also a fellow of the American College of Tax Counsel and a member of the District of Columbia Bar Tax Section and the Federal Bar Association.