FTC preparing lawsuit alleging Amazon deceived advertisers

The Federal Trade Commission is gearing up to sue Amazon over allegations that the company misled advertisers about how its ad auctions actually work. The complaint, which could be filed in the coming weeks, focuses on how Amazon disclosed terms, pricing, and reserve pricing in its search advertising and sponsored listings businesses.

If the case moves forward and results in penalties proportional to the alleged misconduct, Amazon could be staring down billions in civil fines. For a company that generated $68.6 billion in advertising revenue last year, that’s not pocket change.

What the FTC is actually alleging

The investigation, which began as a consumer protection probe in 2025, zeroes in on transparency problems in Amazon’s advertising machinery. Specifically, regulators are scrutinizing how the company communicated auction mechanics to the advertisers bidding for placement on its platform.

The FTC’s concern is that Amazon may not have been upfront about reserve pricing — the minimum price Amazon sets before it will show an ad at all.

Multiple state attorneys general are reportedly involved in the effort, suggesting this isn’t a solo mission from the federal regulator but a coordinated push.

Amazon’s regulatory rap sheet is getting longer

This isn’t Amazon’s first time in the FTC’s crosshairs. In September 2025, the company reached a $2.5 billion settlement over a separate complaint about its Prime subscription practices, centered on allegations that Amazon made it difficult for consumers to cancel their Prime memberships.

Amazon’s advertising business has grown at a remarkable clip, becoming one of the company’s most important revenue engines. The $68.6 billion it pulled in last year makes it the third-largest digital advertising platform in the US, trailing only Google and Meta.

The FTC is also running a parallel investigation into Google’s advertising practices, suggesting the commission sees systemic issues across the digital advertising ecosystem rather than problems unique to any single company.

What this means for advertisers and investors

For Amazon investors, a multi-billion-dollar penalty would dent earnings, but any restructuring of Amazon’s ad system that forces reduced ad prices or makes its auction system less favorable to the platform could extend the revenue impact well beyond any one-time fine.

Resolution is expected by summer 2026, pending votes from FTC commissioners. The $2.5 billion Prime settlement set a precedent for how Amazon handles FTC disputes. Whether the company takes the same approach here depends on how much it values the advertising system as currently constructed.

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