Jeffrey M. Trinklein is a partner in the London and New York offices of Gibson, Dunn & Crutcher, and a member of the Tax Practice Group. Jeff has extensive experience in U.S. and international taxation, with special emphasis on advice to foreign clients with investments in the United States and advice to U.S. clients with foreign operations.

Jeff’s areas of practice include advice to U.S. individuals and companies establishing investments outside the U.S., planning advice on worldwide investment structures and acquisition financing and general U.S. corporate and partnership tax planning. He has represented clients with tax structuring for a range of mergers and acquisition transactions, ranging from public company acquisitions, to private equity fund transactions, to the acquisition of a U.S. professional sports franchise. He has also assisted foreign countries with the drafting of proposed legislation.

Jeff is ranked by The Best Lawyers in America®, Chambers Global: The World’s Leading Lawyers for Business, Chambers USA: America’s Leading Lawyers for Business  and The Legal 500 United States  as a leading tax lawyer. Chambers USA  describes Jeff as “a creative and confidence-inspiring practitioner who can effectively communicate tax nuances” and “communicates clearly and is always very responsive and ready to assist, often in a compressed timeframe.” He is also recognised in Legal 500 UK  2024 for Corporate Tax and for VAT and Indirect Tax, which previously noted that he “has a specialism in advising foreign clients with investments in the US, as well as US clients with foreign operations.”

Jeff joined Gibson Dunn in 1985 and has previously worked in Gibson Dunn’s Munich, London, Dallas and Orange County offices. From 1998 to 2002, Jeff was a member of the Adjunct Faculty at Southern Methodist University’s Dedman School of Law, where he taught courses on U.S. taxation of international transactions and financial derivatives. Jeff has also served as an adjunct faculty member at the London Program of the University of Detroit School of Law and lectures and writes frequently on tax law topics. He has a working knowledge of German and French.

Publications

• Author, “Sovereign Wealth Funds: Tax Makes a Difference,” ABANA Review (2008).