Alan W. Granwell

Alan W. Granwell

Of Counsel
Washington, District of Columbia

Mr. Granwell has practiced in the area of international taxation for over 45 years. He is of counsel to Sharp Partners PA, resident in our Washington, DC office; he also regularly spends time in the firm's Zurich office. Mr. Granwell’s practice encompasses representing multinational corporations on cross-border planning and transfer pricing. He also advises high-net-worth individuals on cross-border income, estate and gift tax planning and structuring, to include foreign persons becoming U.S. persons and U.S. persons moving offshore or expatriating. Mr. Granwell also has served as an expert witness in tax controversy matters.

In the past few years, Mr. Granwell has become active in advising financial institutions and their clients on international tax enforcement initiatives, with special emphasis on the  U.S. Department of Justice Swiss Bank Program and the Foreign Account Tax Compliance Act.

Mr. Granwell also conducts an active administrative practice, regularly representing clients before the Internal Revenue Service and the US Treasury Department (including negotiating advance pricing agreements, conducting competent authority proceedings, advising taxpayers on voluntary disclosures, assisting clients in obtaining regulatory changes and tax rulings and advising clients on tax legislation matters).

From 1981 through 1984, Mr. Granwell was the International Tax Counsel and Director, Office of International Tax Affairs at the US Department of the Treasury.  In that capacity, Mr. Granwell was the senior international tax advisor at the Treasury Department and was responsible for advising the Assistant Secretary for Tax Policy on legislation, regulations and administrative matters involving international taxation and directing the US tax treaty program.

Mr. Granwell is a frequent commentator and lecturer on international tax matters globally.

Mr. Granwell has been named one of the world's leading tax lawyers in independent studies of tax law professionals worldwide, including studies published by Chambers & Partners, Euromoney Publications, Expert Guide to the World's Leading Tax Advisers, The Best Lawyers in America, The Best of the Best USA 2008, the International Who's Who of Corporate Tax Lawyers and Intercontinental Finance Magazine's Leading Lawyer 500, Washington, D.C. Super Lawyers, and also has been named as one of the world's leading transfer pricing advisers in the Euromoney Guide to The World's Leading Transfer Pricing Advisors.

Areas of Practice

  • International Tax Planning
  • Offshore Account Compliance

Bar Admissions

  • District of Columbia, 1984
  • New York, 1970
  • Massachusetts, 1968
  • U.S. Tax Court
  • U.S. Court of Federal Claims


  • New York University School of Law, New York, New York
    • LL.M. - 1976
  • Boston University School of Law, Boston, Massachusetts
    • LL.M. (in Taxation) - 1969
  • Boston University School of Law, Boston, Massachusetts
    • J.D. - 1968
  • Middlebury College, A.B. - 1965, Middlebury, Vermont


  • Adjunct Assistant Professor of Law, New York University School of Law, 1980 - 1981
  • Lecturer, International Tax Issues

Professional Associations and Memberships

  • Society of Estate and Tax Practitioners
  • International Bar Association
  • International Fiscal Association
  • American Bar Association, Tax Section
  • District of Columbia Bar Association
  • New York State Bar Association, (Nonresident Member)
  • Tax Review (Founding Member)
  • Washington International Tax Study Group

Past Employment Positions

  • Office of International Tax Affairs at the US Department of the Treasury, International Tax Counsel and Director, 1981 - 1984