Phillip L. Mann
Senior Counsel

Washington, D.C.
Global Regions

Phillip L. Mann

Phillip Mann's practice covers a broad spectrum of counseling, controversies, and legislative and policy work with the Internal Revenue Service (IRS) and the U.S. Department of the Treasury for both domestic and foreign-based clients.

Mr. Mann lectures frequently on substantive tax subjects affecting large corporate taxpayers, the energy industry, and the financial services industry, as well as tax policy and tax legislative issues.  He is also a former Chair of Miller & Chevalier’s Executive Committee.

Mr. Mann is a past president of the American Tax Policy Institute, an educational organization providing independent tax policy research, and is a former Chair of the 19,500-member Section of Taxation of the American Bar Association (ABA).  From 2000 to 2003, he acted as the ABA Tax Section’s Division Coordinator for the Large and Mid-Size Business (LMSB) Division of the IRS.  In that capacity, he served as the Tax Section’s liaison to the LMSB Division and assisted in coordinating the Section’s law improvement activity responsive to the LMSB.
Government Experience
  • Chairman, Commissioner's Advisory Group, Internal Revenue Service, 1994 - 1996;
    1987 - 1988
  • Tax Legislative Counsel, U.S. Department of the Treasury, 1974 - 1975
  • Deputy Tax Legislative Counsel, U.S. Department of the Treasury, 1973 - 1974
Corporate Experience
Rankings and Recognition
  • ABA Section of Taxation Distinguished Service Award, 2012
  • Alan B. Levenson Award, 2010
  • Parker C. Fielder Award for Outstanding Service and Achievement in Oil and Gas Taxation, 10th Biennial Oil and Gas Tax Conference, 1999, 2009
  • Chambers USA:  Tax (District of Columbia), 2005 - 2015
  • Washington's Top Lawyers: Tax (Washingtonian Magazine), 2013 - 2016
  • Washington, D.C. Super Lawyers®: Tax, 2008 - 2016
  • Who's Who Legal:  Corporate Tax, 1998 - 2014 
  • The Guide to the World's Best Tax Advisors
  • The Best Lawyers in America®:  Litigation & Controversy - Tax, 1987 - 2016
  • Expert Guides: Tax Advisers, 2014
Professional and Community Involvement
  • Member, Section of Taxation, American Bar Association
  • Former President, American Tax Policy Institute
  • Former Chair, Section of Taxation, American Bar Association
  • Former Division Coordinator, Large and Mid-Size Business (LMSB) Division, Internal Revenue Service 
Bar Admissions
  • District of Columbia
  • Texas
Court Admissions
  • United States Tax Court
  • United States Court of Federal Claims
Foreign Languages
  • LL.B., The University of Texas School of Law, 1962
  • B.B.A., The University of Texas at Austin, 1962