Mayer Brown appoints Gary Wilcox as partner in Washington

International Tax Review is part of Legal Benchmarking Limited, 1-2 Paris Garden, London, SE1 8ND

Copyright © Legal Benchmarking Limited and its affiliated companies 2026

Accessibility | Terms of Use | Privacy Policy | Modern Slavery Statement

Mayer Brown appoints Gary Wilcox as partner in Washington

Mayer Brown has appointed Gary Wilcox as a partner in its tax controversy and transfer pricing practice in its Washington DC office.



Wilcox specialises is mergers and acquisitions (M&A), post-transaction integration structuring, transfer pricing and tax disputes with the Internal Revenue Service. He is also a frequent lecturer and author on both controversy and corporate tax issues.

Before joining the firm, Wilcox served as the principal and co-leader of PwC’s tax controversy and regulatory services practice, where he advised clients throughout the audit management, appeals and resolution phases of IRS disputes. Before assuming this role, Wilcox also served as co-leader of PwC’s national M&A tax group (1997-2002), where he focused primarily on the structuring of cross-border corporate transactions.

With his previous experience as the IRS Deputy Chief Counsel from 2002 to 2004, Wilcox brings with him insights into tax policies at both the Department of Treasury and the IRS, in addition to his litigation experience, having served as litigation counsel in significant Tax Court cases.

Wilcox’s arrival is set to strengthen Mayer Brown’s strong tax controversy practice, which over the past few years, has added more than two dozen high-ranking government officials and notable lateral partners to its division.




more across site & shared bottom lb ros

More from across our site

Barrister Setu Kamal and policy guru Dan Neidle have clashed over the former’s legal action against Google, described as ‘bonkers’ by Neidle
Authors from Khaitan & Co evaluate the recent CBDT notification, whereby legacy investments made by investors continue to be exempt from the applicability of GAAR
Dual-qualified corporate tax specialist Christoph Schimmer joins the firm after stints at Deloitte, Cerha Hempel and DLA Piper
Geopolitical rivalry is reshaping global tax cooperation, as the OECD’s minimum tax framework fragments and the EU grapples with the ensuing legal fallout
LED Taxand’s partner tells ITR about entrepreneurial inspirations, the importance of people skills, and what makes tax cool
Shiny new offices like Ryan’s in London Bridge aren’t just a cost – they signal that a firm is willing to align with its clients’ interests
Darren Graves will succeed Richard Houston, who is set to lead Deloitte EMEA; in other news, Morgan Lewis hired a three-partner tax team in New York
India also signed its first-ever bilateral APAs with France, Ireland, Indonesia and Sweden last year, the CBDT revealed
Chile’s revamped GAAR marks a shift toward structural scrutiny, pushing MNEs to strengthen tax governance, economic substance and compliance strategies
New reforms represent the most seismic shift in Canadian TP legislation since its enactment and a clear inflection point for MNEs, ITR has heard
Gift this article