Hal Hicks is the global head of Skadden’s international tax practice and a member of the firm’s Opinion Committee.


Mr. Hicks' practice focuses on a wide range of international tax issues for multinational corporations, partnerships and other entities involving both tax planning and tax controversy. Mr. Hicks has broad-based experience, particularly in the areas of international M&A, foreign tax credit, transfer pricing and subpart F. He is a highly recognized and frequent speaker and author.

Mr. Hicks was named among the top 30 global tax professionals in Euromoney’s 2019 Best of the Best Global Expert Guide (one of only four U.S. tax professionals ranked), and has repeatedly been included in Euromoney’s Best of the Best USA Expert Guide as one of the top 30 U.S. tax practitioners, including in 2019. He is recognized as a leading tax adviser in Chambers Global: The World’s Leading Lawyers for Business, Chambers USA: America’s Leading Lawyers for Business, Euromoney’s Guide to the World’s Leading Tax Advisers, The Best Lawyers in America (Tax Law and Tax Litigation and Controversy), Tax Directors Handbook, The International Who’s Who of Corporate Tax Lawyers, Who’s Who Legal: Corporate Tax, Who’s Who in American Law and The Legal 500 (International Tax), among other publications. He also repeatedly has been included in Washingtonian’s Top Lawyers list. Prior to joining Skadden, Mr. Hicks served as the international tax counsel at the Department of the Treasury from 2005-2007, and as associate chief counsel (international) in the Office of Chief Counsel at the IRS from 2003-2005. He is one of only two people to have held both top international positions at Treasury and Office of Chief Counsel.

Mr. Hicks has represented clients in a wide range of transactions and other matters, including:

  • General Mills, Inc. as special tax counsel in its $8 billion acquisition of Blue Buffalo Pet Products, Inc.;
  • Liberty Mutual Insurance Group in the:
    • $3.3 billion sale of Liberty Life Assurance Company of Boston to Lincoln National Corporation; and
    • cross-border acquisition of four businesses from AmTrust Financial;
  • Fortive Corporation in its $3 billion tax-free spin-off via a Reverse Morris Trust of four operating companies from its Automation & Specialty platform to Altra Industrial Motion Corp.;
  • Markel Corporation in its $975 million acquisition of Nephila Holdings Ltd.;
  • AbbVie Inc. as corporate finance, banking and tax counsel in its $55 billion combination with Shire plc;
  • Sara Lee Corporation in connection with its restructuring, spin-off and migration;
  • Valeant Pharmaceuticals International in its $3.5 billion merger with Biovail Corporation (Canada);
  • Wynn Macau, Limited and Wynn Resorts, Limited in their $1.87 billion initial public offering and listing in Hong Kong;
  • Schering-Plough Corporation with the tax aspects of its $41 billion acquisition by Merck & Co., Inc., a pharmaceutical and biotechnology company;
  • The Coca-Cola Company in connection with the multibillion-dollar acquisition and restructuring of Coca-Cola Enterprises;
  • BlackRock, Inc. in connection with its $14 billion acquisition of the asset management business of Barclays, and the post-acquisition restructuring and integration; and
  • the audit committee and independent directors of Ensco, Inc. in connection with a major restructuring and migration.

In addition, Mr. Hicks has represented clients in audits, appeals and otherwise before the Internal Revenue Service and the Department of the Treasury.

As the international tax counsel at the Department of the Treasury, Mr. Hicks was the principal legal adviser to the secretary and the assistant secretary (tax policy) on all international tax matters. He oversaw the lawyers and economists working in the international tax area, including with respect to legislation, treasury regulations and other published guidance and treaties. Mr. Hicks led the U.S. delegation at the OECD and other international tax forums. As associate chief counsel (international), he supervised more than 120 international tax professionals, including those in the Advanced Pricing Agreement Program. His group was responsible for published guidance, TAMs, private rulings, closing agreements and APAs in all areas of international tax. Mr. Hicks also served as principal legal adviser on all international tax matters to IRS National Office, Field, Exam and Appeals. Mr. Hicks received both the Treasury Honor Award and the Chief Counsel Award for his government service.

Prior to his government service, Mr. Hicks had been in private practice for many years, representing clients in planning and controversy on both outbound and inbound matters, as well as on domestic matters.



  • LL.M. (Tax), New York University School of Law
  • J.D., University of Virginia School of Law
  • B.A., College of William and Mary


  • Professor Richard Pugh Distinguished International Tax Award, University of San Diego School of Law – Procopio International Tax Institute (2014)
  • U.S. Treasury Honor Award (2007)
  • Chief Counsel Award (2005)


  • District of Columbia


  • Chair, Advisory Board, IRS/ GW Conference
  • Member, Advisory Board, International Tax Journal
  • Member, Advisory Board, University of Chicago Tax Conference
  • Fellow, American College of Tax Counsel
  • Adjunct Professor, Georgetown University Law Center

Government Service

  • International Tax Counsel, Department of Treasury (2005-2007)
  • Associate Chief Counsel (International), Internal Revenue Service (2003-2005)