The Federal Trade Commission and a bipartisan coalition of 22 state attorneys general sued Amazon on Monday, alleging the company has secretly rigged billions of advertising auctions since 2019 to extract more than $20 billion from roughly 1.2 million advertisers.
The scheme in plain terms
Amazon represents to advertisers that competitive auctions set the price of Sponsored Products, Sponsored Brands and Sponsored Display ads that appear alongside search results. According to the complaint filed in the Western District of Washington, the company instead overrides those auction results with higher prices it sets itself, imposing what internal documents call hidden surcharges on almost every click. The FTC says its investigation, opened in 2024, uncovered messages describing the practice as a systematic scheme that continues today.
The money at stake
The $20 billion figure is not a fine or a settlement demand, it is the FTC’s estimate of what advertisers have been overcharged over seven years. That sum lands on top of Amazon’s reported advertising revenue, which has grown into a tens-of-billions-a-year business line. The lawsuit does not specify how the $20 billion was calculated, only that it rests on numerous internal documents describing the surcharges.
The states and the venue
The 22 attorneys general span both parties and include the offices of California, New York, Florida and Texas-adjacent states such as Oklahoma and Louisiana. Filing in Seattle’s federal court keeps the case in Amazon’s home district, where the company has faced prior antitrust scrutiny. The bipartisan join signals that the allegations are being treated as consumer protection rather than partisan theater.
What Amazon has not said
Amazon has not yet filed a response. The complaint alleges deception, not merely aggressive pricing, which means the company will need to explain why its auction mechanics diverge from what it tells advertisers. If the internal documents show executives describing the surcharges as hidden, the defense narrows to whether advertisers were actually misled or simply accepted opaque pricing as the cost of reach.
What to watch next
Discovery will test whether the FTC’s internal-document trove holds up under cross-examination. A motion to dismiss is likely first. Beyond that, the case could force disclosure of how Amazon’s ad auction logic works, something the company has guarded as a trade secret. For advertisers, the immediate question is whether any refund mechanism follows a judgment or settlement, or whether the $20 billion simply becomes the cost of a business model the FTC now calls illegal.