A lawsuit asks whether McDonald's pricing software is price-fixing by another name

What McDonald's is, and what the suit says

McDonald's runs a franchise system. About 95 percent of its roughly 14,000 US restaurants are owned by franchisees, independent owners who pay to use the brand, according to the complaint.

On October 2nd, 2026, a customer named Michael Thomas filed a proposed nationwide class action in federal court in Chicago. A class action is one lawsuit brought on behalf of a whole group of people.

The complaint says McDonald's pricing engine draws on nonpublic sales data from its restaurants and recommends menu prices to each of them. It argues that this makes the engine a vehicle for an agreement among competing franchisees.

McDonald's denies the claim. It says franchisees set prices and that the tools are optional. No court has ruled on any of it.

How the pricing engine works, according to Reuters

Reuters reported on September 29th, 2026 that the engine uses machine learning on data from millions of daily transactions. It produces what McDonald's calls the optimal price for each item at each restaurant.

Reuters based its account on screenshots of the engine and interviews with nine people with first-hand knowledge. Five store owners told Reuters that the company pressured them to use the tools.

McDonald's calls the Reuters reporting speculative and uninformed. It says the portal is a tool, not a mandate.

Chris Kempczinski, the chief executive, told investors in August that pricing non-compliance is part of some franchisee business reviews, Reuters reported. Franchisees depend on the company for decisions such as renewing or opening stores.

Figure 1 shows one price gap Reuters found. Reuters could not confirm whether the engine or other factors caused it.

Why the franchise setup matters

Antitrust law requires competing businesses to set prices on their own. Franchisees of one brand can count as competitors.

McDonald's own pricing portal says as much. Its terms of service warn that owners may be competitors of each other and should follow antitrust law, Reuters reported. The terms also say franchisees are always free to set the final price.

The plaintiff's theory borrows from cases against RealPage, a software vendor to landlords. There the Justice Department alleged that competing landlords fed confidential data into one vendor's software.

Here the hub is the franchisor itself. Courts have long given brands room to influence franchisee pricing. That is McDonald's strongest defence, according to the Vektora intel alert on the case.

Some experts told Reuters the legal risk to McDonald's is low for the same reason.

Where the courts stand on shared pricing software

Courts have not agreed on software that several competitors use. Figure 2 sets out the main steps.

The Ninth Circuit, a federal appeals court, upheld the dismissal of a hotel case on August 14th, 2025. The Third Circuit revived a similar case on July 29th, 2026, after casino-hotels allegedly adopted the software's prices 90 percent of the time, Covington & Burling reported.

The Justice Department settled with RealPage on November 24th, 2025. RealPage agreed to stop using competitors' nonpublic data to set rents and to accept a court-appointed monitor.

What to watch

The first test is whether McDonald's asks the court to dismiss the case, and how the judge rules. That ruling would show whether the franchise structure shields the company.

Any appeal would go to the Seventh Circuit, according to the Vektora alert. The alert rates the legal risk as medium until a court rules.