Jane Wells May focuses her practice on state and local tax matters. She represents businesses in connection with tax controversies at the audit, administrative and judicial levels around the United States. Her clients include companies in manufacturing, retailing, pharmaceuticals, financial services, agribusiness, food and beverage, health care, energy, technology and insurance industries. Jane is the global head of the Firm’s Tax Practice. She sits on the Firm’s Management and Compensation Committees, and previously served on the Executive Committee.

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  • Serves as national coordinating counsel to several Fortune 500 companies to provide strategic counsel and audit defense on all state and local tax matters across the country, including litigating in administrative and judicial venues when necessary
  • Secured a complete concession prior to trial on a cost of performance apportionment income tax issue for a financial services company
  • Won a transfer pricing case for a shared services entity in New York

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  • The Best Lawyers in America 2016 to 2021, Tax Law
  • Chambers USA, 2008 to 2021, Tax: Controversy
  • World Tax Review 2016 – 2022
  • Legal 500 US, 2020 – 2021

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  • Chicago Bar Association, State and Local Tax Committee
  • State of Illinois, Director’s Advisory Group


Vanderbilt University Law School, JD, Order of the Coif, 1986
Wittenberg University, BA, with honors, 1980

District of Columbia

Supreme Court of the United States

Webinar / McDermott Event / May 18, 2021

San Francisco, CA / McDermott Event / December 10, 2019

Chicago, IL / McDermott Event / December 5, 2019

Chicago, Illinois / McDermott Event / December 12, 2018

New York, New York / McDermott Event / December 6, 2018

New York, NY / McDermott Event / June 21, 2018

Chicago, Illinois / McDermott Event / June 8, 2017