Rossi v. McDonald’s Corporation, et al.

Berger Montague represents the plaintiff and the proposed class in this antitrust class action lawsuit filed against McDonald’s Corporation, McDonald’s USA, LLC, and Deloitte Consulting LLP, alleging that McDonald’s, its franchisees, and Deloitte conspired to fix menu prices at McDonald’s restaurants nationwide through an “algorithmic” pricing system.

The complaint, filed October 15, 2026, in the U.S. District Court for the Northern District of Illinois, alleges that since at least 2019, McDonald’s company-owned and franchised restaurants—which are supposed to compete with one another—have priced their menus using a single pricing tool developed by Deloitte for McDonald’s. According to the complaint, that tool pools competing restaurants’ confidential sales data to generate item-by-item, restaurant-by-restaurant price recommendations; Deloitte delivers those recommendations to franchisees; and McDonald’s monitors and enforces adherence through its franchisee business reviews. The complaint alleges that the average McDonald’s menu item cost about 40 percent more in 2024 than in 2019, and it seeks treble damages and injunctive relief under Section 1 of the Sherman Act on behalf of all persons and entities in the United States that purchased menu items from a McDonald’s restaurant since January 1, 2019.

Read more about this case:

• McDonald’s, Deloitte Under Fire Over Alleged Menu Pricing Scheme, PYMNTS (October 18, 2026). Read more here.
• McDonald’s Used Deloitte Tool to Fix Menu Prices, Suit Says, Law360 (October 16, 2026). Read more here.

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