McDonald’s faces a national class-action lawsuit filed in a Chicago federal court, accused of using machine learning algorithms trained on nonpublic data to coordinate menu prices between franchise and corporate-owned locations.
The fast-food giant faces a nationwide class-action lawsuit in the United States, targeted by allegations that its automated pricing system breaches federal antitrust regulations. Filed on October 2, 2026, in a Chicago federal court, the legal challenge targets corporate pricing practices across nearly 14,000 stores nationwide.
Lawsuit Targets Chicago Court With Federal Antitrust Allegations
The legal filing asserts that McDonald’s utilizes machine learning algorithms fueled by proprietary, nonpublic data to orchestrate pricing alignment among independent franchisees and corporate-operated restaurants. According to the complaint, these digital tools process millions of daily transactions across the entire domestic footprint, enabling price coordination that bypasses traditional market independence.
The lawsuit’s text emphasizes a core principle of economic independence, stating that independent enterprises must set prices independently
. The complaint points to industry trends highlighting how other fast-food competitors have begun adopting automated pricing systems and machine learning models to manage operations and customer costs.
McDonald’s Denies Pricing Allegations in Corporate Statement
McDonald’s issued a formal statement on October 5, 2026, pushing back against the litigation by characterizing the legal claims as speculative and entirely unfounded.
AI does not determine the price of a Big Mac or any other menu item.
Corporate statement, McDonald’s
The corporation maintains that individual franchisees maintain full autonomy over their local menu pricing. Furthermore, the company argues that using pricing recommendation analytics has become standard practice across numerous modern consumer industries.
Legal observers note that this action arrives during a wave of consumer litigation across the United States. Plaintiffs nationwide have increasingly challenged major corporations for deploying algorithms to coordinate rates for hotel rooms, residential apartment rents, and various other consumer goods and services.
Attorney Seeks Class-Action Status for Millions of Consumers
The plaintiff initiating the action resides in Illinois and is actively seeking class-action status to represent millions of individual McDonald’s patrons across the United States who purchased menu items affected by the alleged pricing algorithms.
Lark Turner, the attorney representing the consumer class, pulled no punches in a public statement regarding the corporate strategy behind the data systems.
is leveraging massive data and the franchise system to nickel-and-dime consumers, sparing not even the profit on a single French fry.
Lark Turner, Plaintiff Attorney