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FTC and 22 States Sue Amazon Over Alleged Advertising Auction Inflation

2026-09-01

The BareStory

The Federal Trade Commission and attorneys general from 22 states filed a lawsuit against Amazon on Monday in federal court in Washington, alleging that the company systematically overcharged advertisers by inflating prices in its digital advertising auctions. The complaint claims that undisclosed surcharges were applied to more than 1 million brands and merchants, potentially costing advertisers tens of billions of dollars.

According to regulators, Amazon altered its second-price auction format to charge winning bidders higher rates through undisclosed mechanisms, despite telling businesses they would pay only slightly above the next highest bid. FTC Chairman Andrew Ferguson stated that the practices led to significantly higher costs for advertisers that were largely passed along to consumers. The plaintiffs are seeking a court order to halt the practices, alongside civil penalties, restitution, and other damages.

Amazon denied the allegations, describing the lawsuit as flawed and stating that regulators misunderstand how advertisers adjust their bids. The company stated that its auction system saved advertisers more than $8 billion between 2021 and 2025 by prioritizing ad relevance over price alone, adding that the regulators failed to provide evidence of harm to consumers.

The legal action targets Amazon's advertising business, which generated nearly $69 billion in revenue in 2025. The case follows other federal regulatory actions against the retailer, including a $2.5 billion settlement over its Prime subscription enrollment practices and an upcoming trial regarding separate antitrust claims.

Left Perspective

  • Halting Deceptive Corporate Extraction
  • Shielding Downstream Consumer Wallets
  • Dismantling Entrenched Gatekeeper Impunity

Right Perspective

  • Rewarding Dynamic Value Creation
  • Exposing Baseless Regulatory Overreach
  • Protecting Scaled Technological Innovation

How it may affect me

As a U.S. reader:

• You may eventually see lower or stabilized retail prices for consumer goods if regulatory action eliminates advertising surcharges that merchants reportedly pass along to shoppers.

• You could experience changes in the relevance and placement of sponsored ads while shopping online if Amazon is forced to modify its ad auction mechanisms.

• You might face disruptions or changes to digital service features and ad matching tools if regulatory oversight restricts dynamic platform algorithms.

• You could see shifts in third-party merchant costs and marketplace pricing if the lawsuit successfully secures restitution and penalties for over one million affected brands.

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