People default image

Mitchell Weiss

Partner
He is one of the most client-centric, knowledgeable tax partners I have encountered.
— Chambers USA
Chicago
About

Mitchell (Mitch) Weiss advises on a broad range of domestic and cross-border transactions and tax planning opportunities. Working with his partners throughout the world, he assists investment funds, sovereign wealth funds, domestic and foreign multinationals, and their investors and executives in identifying, designing, negotiating, and implementing tax-advantaged transactions and operationally efficient global structures. This often entails cross-border private and public offerings, restructurings, acquisitions, expansions, dispositions, IP migrations, and cash repatriations. 

Mitch's contributions to tax law extend beyond his legal practice. He is a frequent speaker at tax conferences, a member of the International Tax Journal's advisory board, and the author of numerous tax articles and books. Mitch is also a Visiting Professor of Practice at Northwestern University's Pritzker School of Law, where he teaches the "Advanced Partnership Taxation" and "International Taxation of Partnerships" courses.

Areas of FocusTaxInvestment Funds
Bar admissionsIllinois
Education
  • J.D., The University of Chicago Law School, 2000
  • Masters of Tax, Southern Illinois University, 1993
  • B.S., Southern Illinois University, 1992

Publications

Books

  • Co-Author, United States International Taxation: Outbound and Inbound Activities, Commerce Clearing House / Wolters Kluwer and Carolina Academic Press, Tenth and Eleventh Editions, Vols. 1–2, 2014 to present (with Postlewaite)
  • Co-Author, United States International Taxation, Carolina Academic Press, Fourth and Fifth Editions, 2019 to present (with Postlewaite and Tokic)
  • Co-Author, Tax Cuts and Jobs Act Impact: Guide to International Tax, Commerce Clearing House / Wolters Kluwer, December 2018 (with Postlewaite)
  • Co-Author, Partnership Taxation: Introductory, Advanced, and International: Student Problems and Instructor’s Manual, Thomson Reuters Checkpoint, Eighth, Ninth, and Tenth Editions, April 2018 to present (with Postlewaite)

Articles

  • Co-Author, “Treaty-Based Foreign Tax Credits: The Limitations of the Domestic Law Limitation,” International Tax Journal, Vol. 51, p. 29, August 2025
  • Co-Author, “Taxing the Barrel: How U.S. Legal Reforms Affect Saudi Oil and Gas Ventures,” Tax Notes Today International, April 2025
  • Co-Author, “IRS Clarifies ‘Foreign Derived’ Service Income for FDII Regime,” Bloomberg Tax: Tax Management International Journal, March 2025
  • Co-Author, “A Tax Treaty by Any Other Name: The United States-Taiwan Expedited Double-Tax Relief Act,” International Tax Journal, Vol. 50, p. 36, June 2024
  • Co-Author, “Disproportionately Difficult: Determining a U.S. Partner's Proportionate Share of Partnership Intangible Property Under Code Sec. 367(d),” International Tax Journal, Vol. 49, p. 49, December 2023
  • Co-Author, “Controlled Foreign Corporations — Part 2,” Taxes, Vol. 100, p. 33, November 2022
  • Co-Author, “Controlled Foreign Corporations — Part I,” Taxes, Vol. 100, p. 41, September 2022
  • Co-Author, “The All Earnings and Profits Amount of a Domesticating Foreign Target: The Non-Recognition Cleansing Exception,” International Tax Journal, Vol. 48, p. 5, June 2022
  • Co-Author, “Export Activities,” Taxes, Vol. 99, p. 23, June 2021
  • Co-Author, “Related Person Downward Attribution: Rules Similar to the Rules of Section 958(b),” International Tax Journal, Vol. 47, p. 23, April 2021
  • Co-Author, “The Participation Dividends-Received Deduction: More than Meets the Eye,” International Tax Journal, Vol. 45, p. 49, June 2019
  • Co-Author, “Inbound Dispositions of Partnership Interests: The Uncertainty Continues,” International Tax Journal, Vol. 44, p. 7, May 2018
  • Co-Author, “Section 956 in the Partnership World: An Aggregate Tour de Force with Some Bumps in the Road,” International Tax Journal, Vol. 43, p. 5, April 2017
  • Co-Author, “Post-Inversion Partnership Restructurings under Notice 2015-52: A Cure Worse than the Disease,” International Tax Journal, Vol. 41, p. 29, September 2015
  • Co-Author, “American Bar Association Section of Taxation, Comments on Notice 2014-52,” Tax Notes Today, June 2015
  • Co-Author, “Income Derived Through Fiscally Transparent Entities: Practical Issues and Unintended Consequences,” The Tax Adviser, March 2014
  • Co-Author, “U.S. Sandwich Structures in the International Inbound Context,” The Tax Adviser, March 2012
  • Co-Author, “New York City Bar Report Offering Proposed Guidance Regarding the Passive Foreign Investment Company Rules,” Tax Notes Today, September 2009
  • Co-Author, “Abandoning the Tax Havens: The Redomestication of Inverted Multinationals and Bermuda-Based Insurers,” Practical U.S. International Tax Strategies, March 2009
  • Co-Author, “Changes to the Germany-U.S. Double Taxation Treaty,” BNA Tax Planning International Review, February 2008
  • Co-Author, “Financing U.S. Subsidiaries of European Multinationals: Tax Efficient Structuring of Intercompany Loans and Hybrid Financing Arrangements,” Practical European Tax Strategies, August 2007
  • Co-Author, “United States Mergers and Acquisitions: Jumping the Gun under the Hart-Scott Rodino Antitrust Improvements Act,” Competition Law Insight, September 2006
  • Co-Author, “International Tax Competition: An Efficient or Inefficient Phenomenon?,” Akron Tax Journal, Vol. 16, p. 99, 2001
  • Co-Author, “Mr. Justice Holmes’s Constitutionally Crooked Path Part II: The State Sovereignty Jurisdictional Stopgap,” Cleveland State Law Review, Vol. 47, p. 497, 1999
  • Co-Author, “Restrictions to the Section 936 Credit Imposed by the RRA of 1993,” International Tax Journal, Vol. 20, p. 24, 1994

Seminars

  • Speaker, LinkedIn Live Series, Let’s Talk About Cross-Border Deals, Chicago, Illinois, November 22, 2022
  • Speaker, Wolters Kluwer CLE Webinar, Untangling the Tax Complexities of International Outbound Activities, Chicago, Illinois, November 4, 2022
  • Speaker, Brazil Tax Conference, Exchange-Ideas, São Paulo, Brazil, October 26, 2022
  • Speaker, Brazil Tax Conference, Exchange-Ideas, São Paulo, Brazil, March 21, 2019
  • Speaker, AmCham Chile–US Investments International Tax Conference, Santiago, Chile, March 7, 2019
  • Speaker, Spain–US Chamber of Commerce International Tax Conference, Madrid, Spain, February 2, 2018
  • Speaker, International Fiscal Association’s Annual US Tax Conference, Washington, DC, February 22, 2017
  • Speaker, Federal Bar Association’s 28th Annual Insurance Tax Seminar, Washington, DC, June 2, 2016
  • Speaker, Northwestern University School of Law’s Tax Law Society Seminar on Corporate Inversions, Chicago, Illinois, March 28, 2016
  • Speaker, Illinois CPA Society’s Tax Reform Conference, Chicago, Illinois, November 11, 2015
  • Speaker, Tax Executives Institute’s Tax Conference, Chicago, Illinois, October 4, 2011
  • Speaker, Deloitte’s Annual Central Region Inbound Tax Planning Conferences, Chicago, Illinois, 2012–2018

Media Mentions

  • Quoted, “Businesses on Quest for M&A Deals Find Tax Leverage in IRS Rules,” Bloomberg Daily Tax Report, August 31, 2020
  • Quoted, “Treasury Could Modify E&P Exception to Debt-Equity Rules,” Bloomberg Daily Tax Report, June 6, 2016

Prior Experience

Over the last 25 years, Mitch has advised on numerous significant global restructurings and high-stakes corporate transactions. He has worked in the international tax groups of several global law firms. Prior to joining DLA Piper, he led and advised the international member firms of a major global professional services firm on their U.S. inbound activities.

Additional Information

  • Visiting Professor of Practice, Northwestern University Pritzker School of Law
  • Certified Public Accountant in Illinois 

Memberships and Affiliations

  • Member, Advisory Board, International Tax Journal
  • Member, USA Branch Council, International Fiscal Association
  • Member, Foreign Activities of US Taxpayers Committee, American Bar Association, Section of Taxation

My latest insights

News
Chicago_USA_City_L_0231 2560x975

DLA Piper welcomes Mitchell Weiss to its Investment Funds practice in Chicago

15 July 2026 .2 minute read

Connect

Phone

+1 312 368 4040
(Work, Chicago)
CallvCardLinkedInPrint