On Monday, the United States Federal Trade Commission, supported by a coalition of 22 states, filed a lawsuit claiming Amazon overcharged more than a million advertisers by manipulating its online ad auctions. The complaint suggests the tech giant added a hidden cost to every bid, inflating prices up to 80% of the time and collectively generating roughly $20bn in extra revenue since 2019.
Amazon responded immediately, calling the allegations “misguided” and asserting that its pricing model is standard for digital advertising. The company says it does not override auction outcomes and that advertisers adjust bids based on real‑world performance, not on the mechanics described by the FTC. It also noted that, over the period, average winning bids had fallen by about 50% and most ads do not go to the highest bid.
The lawsuit goes beyond advertisers, arguing that consumers are indirectly harmed because the inflated ad costs filter into retail prices. “Consumers have suffered substantial injury,” the complaint states, while Amazon argues that the lawsuit mischaracterizes the issue as higher consumer prices.
Amazon’s shares dipped more than 2.5% on the day of the filing, reflecting investor unease over potential regulatory penalties and reputational damage. The case comes at a time when digital advertising’s environmental footprint—energy use, data processing, and server emissions—is increasingly scrutinized, highlighting how opaque pricing practices may also contribute to wider sustainability challenges.
Previously, Amazon settled an FTC case for $2.5bn related to unpaid Prime subscriptions, underscoring the company’s ongoing legal challenges. The current lawsuit joins that pattern, raising questions about the broader transparency of Amazon’s platform, not only for advertisers but also for consumers and the planet.
