H. David Rosenbloom
Caplin & Drysdale
H. David Rosenbloom Member

P: (202) 862-5037

F: (202) 429-3301

Washington, D.C. Office


H. David Rosenbloom is a Member in Caplin & Drysdale's Washington, D.C., office. He rejoined the firm in 1981 after serving as International Tax Counsel and Director of the Office of International Tax Affairs in the US Treasury Department from 1977 to 1981. Mr. Rosenbloom has been recognized as a Senior Statesmen by Chambers USA since 2014 and listed among "Leading Lawyers" by The Legal 500 for his work with clients in International Tax and Tax Controversies.





Mr. Rosenbloom's major areas of practice include international tax planning and controversies, including transfer pricing and advance pricing agreements, the foreign tax credit and subpart F, tax treaty issues and competent authority proceedings, financial products and financial institutions, taxation of all forms of inbound investment, and individual tax compliance in a cross-border context.


Mr. Rosenbloom has served as a Tax Policy Advisor for the US Treasury, the OECD, US AID, the International Monetary Fund, and the World Bank in Eastern Europe and the Baltic countries, the former Soviet Union, Senegal, Malawi, and South Africa. He has consulted with and advised foreign governments and international organizations on international tax matters, and served as an expert witness in international tax disputes in the United States, Canada, New Zealand, Norway, and Australia.

He has also written extensively on international and comparative tax topics. His most recent writings discuss the intersection of U.S. tax reform, U.S. tax treaty policy, and the OECD Project on Base Erosion and Profit Shifting.

Mr. Rosenbloom is fluent in French and Italian and has fundamental knowledge of Spanish.

Professional Activities

  • James S. Eustice Visiting Professor of Taxation and Director of International Tax Program, New York University School of Law
  • Lecturer on international taxation at Harvard, Stanford, the University of Pennsylvania, and Columbia Law Schools, and at universities in Sydney, Vienna, Melbourne, Milan, Bergamo, Bologna, Bari, Mexico City, Mainz, Heidelberg, Neuchatel, Lisbon, and Rio de Janeiro
  • Instructed at the University of Pretoria, the Universita del Piemonte Orientale, the Max Planck Institute in Munich, Seoul National University, Leiden University, University of Amsterdam, the Public Finance Training Center in Taipei, and the OECD Multilateral Training Centres for Tax Offices from CIS and Eastern European Countries in Vienna, Ankara, and Budapest

Practice Area(s)

Awards & Rankings

  • Chambers USA, 2008-2013; Senior Statesmen, 2014-Present
  • Chambers Global, 2009-2012; Senior Statesmen, 2016-Present
  • The Legal 500, Hall of Fame, 2018; Recommended, 2010-2014, 2017-Present; Leading Lawyer, 2013-Present
  • The Legal 500, Top-Tier Firm, Tax - US Taxes - Contentious, 2010, 2015-Present
  • The Legal 500, International Tax Team of the Year, 2014-2015
  • Best Lawyers in America, 1989-Present
  • Expert Guides' The Best of the Best, 2009, 2011-2013, 2015
  • Expert Guides' World's Leading Tax Advisers, 2012, 2014
  • Super Lawyers, Washington, D.C., 2008-Present
  • The Washingtonian, Top Lawyers in D.C., 2009, 2011-2012, and 2015
  • Martindale-Hubbell® AV® Preeminent™
  • ITR World Tax, Highly Regarded, Tax Controversy, 2020
  • Who's Who Legal, Corporate Tax, Recommeded, 2018-Present; Thought Leader - Corporate Tax 2019-Present

Recent News

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Speaking Engagements

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Recent Publications

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  • J.D., Harvard Law School, 1966, magna cum laude, President, Harvard Law Review, Vol. 79
  • Fullbright, University of Florence, Florence, Italy, 1963
  • A.B., Princeton University, 1962, summa cum laude

Bar and Court Admissions

  • New York
  • District of Columbia
  • U.S. Bankruptcy Court, District of Columbia
  • U.S. District Court, District of Columbia
  • U.S. Supreme Court
  • U.S. Tax Court
  • District of Columbia Court of Appeals
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