Alan Winston Granwell is an international tax partner resident in DLA Piper's Washington, DC office. Mr. Granwell’s practice encompasses representing multinational corporations on cross-border planning, to include acquisitions, dispositions and business restructurings, IP migrations, services arrangements, repatriation planning, international insurance, international transportation, cross-border leasing, transfer pricing and the use of bilateral tax treaties. He also advises high-net-worth individuals on cross-border tax planning and structuring.

Recently, Mr. Granwell has become active in advising investors from emerging countries engaged in cross-border transactions involving the United States and Europe and in advising financial institutions and their clients on international tax enforcement initiatives, with special emphasis on the Foreign Account Tax Compliance Act.

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 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).

Mr. Granwell has written numerous articles and has been a frequent 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 and Who's Who Legal, 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.

Legal 500 cites Mr. Granwell, noting his "wide experience" and remarking that clients says he is "'very efficient and has excellent contacts in the IRS and US Treasury' for planning and advance pricing agreements." He is listed in The International Who's Who of Corporate Tax Lawyers. Chambers Global: The World's Leading Lawyers for Business cites him as a notable practitioner and describes him as "smart and easy to work with." Chambers USA: America's Leading Lawyers for Business says Mr. Granwell's clients regard him as a "zealous advocate" with a "very deep technical understanding of US reporting issues and a great network of partners and other resources that he can access" and notes that Mr. Granwell embodies "a unique combination of extreme technical skill, an international perspective on tax and a tremendous list of global contacts" and deems him "an international tax expert well versed in cross-border transactions, restructurings and transfer pricing." He has been named a Washington, DC Super Lawyer.