# Seattle Becomes First US City to Ban AI Pricing Based on Shopper Data > Source: > Published: 2026-10-09 15:39:55+00:00 *Seattle wants $3,000 every time an algorithm decides you'll pay more than your neighbor. Grocers and delivery apps have until 2027 to stop.* Mayor Katie Wilson signed the Fair Pricing and Transparency Ordinance into law on October 6, making Seattle the first city in the country to ban grocery stores and delivery platforms from using shoppers' personal data to set individual prices. The Seattle City Council passed the measure, Council Bill 121267, on a 7-2 vote on September 22, with councilmembers Bob Kettle and Maritza Rivera opposed. It takes effect September 1, 2027, and adds a new Chapter 7.35 to the Seattle Municipal Code. Here's what it actually bans: large grocers and delivery services can't use your browsing history, your real-time location, your employment status, your race, gender, health conditions, family size, or even your chatbot conversations to decide what price you see for groceries and other essential items. Two customers standing at the same shelf have to see the same number. Coupons, senior and veteran discounts, and other pricing open to everyone are still fine. What's banned is pricing built around a profile of you specifically. Wilson and councilmember Alexis Mercedes Rinck introduced the policy together, with Dionne Foster and Rob Saka co-sponsoring. The law carries civil penalties starting at $3,000 for a first violation and rising to $10,000 for each one after that, according to Seattle's own bill summary. The push didn't come from nowhere. A 2025 investigation by Consumer Reports, the Groundwork Collaborative, and More Perfect Union found that surveillance pricing could add roughly $1,200 a year to the average Seattle family's grocery bill, a figure city officials cited repeatedly while building the case for the ordinance, as GeekWire and the Urbanist both reported. That's not an abstract harm. That's a number a family checks against their own receipts. [McDonald's AI Tool Quietly Sets Your Big Mac Price and Tracks Who Ignores It](https://startupfortune.com/mcdonalds-ai-tool-quietly-sets-your-big-mac-price-and-tracks-who-ignores-it/) McDonald's built the system with data consulting firm Tiger Analytics, and it pulls nearby Wendy's and Burger King prices into its recommendations. The FTC proposed its personalized pricing rule on August 19, while Connecticut and Maryland disclosure and surveillance-pricing rules took effect October 1. - [McDonald's AI dynamic pricing Big Mac locations](https://startupfortune.com/mcdonalds-ai-tool-quietly-sets-your-big-mac-price-and-tracks-who-ignores-it/) - [AI tool tracks restaurant price compliance pressures](https://startupfortune.com/mcdonalds-ai-tool-quietly-sets-your-big-mac-price-and-tracks-who-ignores-it/) Grocery industry representatives pushed back hard before the vote. Hoodline reported that grocers warned the crackdown could gut loyalty programs and targeted coupon deals that plenty of shoppers already rely on to save money, arguing the line between banned data-driven pricing and voluntary personalized discounts isn't clean. That tension is real, and the ordinance's September 2027 runway suggests the city knows retailers need time to sort out which systems cross the line and which don't. Seattle isn't inventing the concept from scratch. Maryland, Connecticut, and New Jersey have already taken state-level action against surveillance pricing, SupermarketNews noted, and the Federal Trade Commission opened an inquiry into the practice back in 2024. What Seattle did is turn a federal inquiry and a handful of state statutes into an enforceable municipal law with real penalties attached, aimed specifically at grocery chains like Safeway, Trader Joe's, PCC Community Markets, and Metropolitan Market that operate in the city. ## The McDonald's problem this plugs into The timing lines up with a separate fight that's suddenly made algorithmic pricing a live legal question nationwide. On October 2, a nationwide class-action lawsuit was filed against McDonald's in federal court in Chicago, accusing the company of using an AI pricing engine, built on the Dynamic Yield platform it bought for $300 million in 2019, to effectively coordinate menu prices across franchised restaurants. The complaint, filed by plaintiff Michael Thomas, alleges the system recommends raising an item's price once roughly 30% of stores have already raised it, and that McDonald's has required franchisees to use its approved pricing tools since January 2026 while tracking who deviates. McDonald's has denied the claims, saying the pricing portal is a tool, not a mandate, and that franchisees still set their own prices, according to ABC13's reporting on the case. Neither case accuses a company of literally the same conduct. McDonald's suit is about algorithmic coordination across franchise locations, not pricing one customer differently from another based on their data. But both land on the same regulatory nerve: an algorithm, not a manager, is now setting the number on the receipt, and nobody outside the company can easily tell how. For founders building retail or pricing AI, and for investors backing them, that's the real signal here. A municipal ordinance with specific dollar penalties, combined with an active antitrust suit against one of the most recognizable brands in retail, tells any vendor selling dynamic-pricing tools to grocers that the design question isn't "can this model raise margin," it's "can we defend every input this model used in court." Seattle just wrote down, in statute, which inputs are off the table. **Also read:** [OpenAI tells a California court its AI agents are not its responsibility to control](https://startupfortune.com/openai-tells-a-california-court-its-ai-agents-are-not-its-responsibility-to-control/) • [AI giants are quietly scripting the rules Congress will pass after disaster](https://startupfortune.com/ai-giants-are-quietly-scripting-the-rules-congress-will-pass-after-disaster/) • [AI Giants Lobby Trump Health Officials Through a Private CMS Slack Channel](https://startupfortune.com/ai-giants-lobby-trump-health-officials-through-a-private-cms-slack-channel/) *This article is posted in [AI News](https://startupfortune.com/category/ai/), check it out for more related stories.* [McDonald's AI pricing engine faces lawsuit and antitrust questions](https://startupfortune.com/mcdonalds-ai-pricing-engine-faces-lawsuit-and-antitrust-questions/) George Michell's lawsuit continues after a judge dismissed his breach-of-contract claims, while Reuters found the Tiger Analytics pricing system has run since at least 2019 across nearly 14,000 restaurants, producing a 21% Big Mac price gap in Fresno alone. - [dynamic pricing algorithm lawsuit against McDonald's](https://startupfortune.com/mcdonalds-ai-pricing-engine-faces-lawsuit-and-antitrust-questions/) - [AI pricing engine antitrust investigation FTC](https://startupfortune.com/mcdonalds-ai-pricing-engine-faces-lawsuit-and-antitrust-questions/) ## Join the discussion [Open in the community →](https://startupfortune.com/community/) Almost there. 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