FTC Sues Amazon Over Secret Ad Overcharging

FTC Alleges Secret Overcharging

The Federal Trade Commission’s long-awaited antitrust lawsuit against Amazon has landed, and while much of the attention has focused on marketplace dominance, one allegation stands out for its direct impact on sellers: the claim that Amazon has been “secretly and systematically” overcharging for advertisements. According to the FTC’s complaint, the company has manipulated its own advertising systems to inflate costs for merchants who pay for sponsored product placements, all while presenting those charges as legitimate fees.

The agency’s filing describes a pattern of behavior in which Amazon allegedly altered its ad-bidding and billing processes without clear disclosure. Specifically, the FTC asserts that Amazon would raise the effective cost per click for sellers beyond what they had agreed to, or apply hidden surcharges that were not visible in the sellers’ dashboards. The complaint argues that these practices were not isolated errors but part of a deliberate strategy to boost ad revenue—which has become a massive profit center for the company—at the expense of the very businesses that rely on Amazon’s platform to reach customers.

What the FTC Claims in Detail

• Systematic overbilling: The FTC alleges that Amazon’s ad system routinely charged sellers more than the winning bid price, with the difference never explained or refunded.
• Hidden fee structures: Sellers were not given itemized breakdowns of how their ad budgets were spent, making it nearly impossible to detect the overcharges.
• Lack of transparency: The complaint states that Amazon’s own internal documents acknowledged the discrepancies, yet the company continued the practice for years.

For independent sellers, many of whom operate on thin margins, these alleged overcharges could translate into significant financial harm. The FTC’s action seeks not only to halt the practice but also to force Amazon to account for and refund the disputed amounts. As the case moves forward, the central question will be whether Amazon’s ad pricing was truly “secret” or simply a complex system that sellers failed to audit—a distinction that could shape the outcome of the entire lawsuit.

Amazon's Response

In a sharply worded rebuttal, Amazon rejected the FTC’s central premise, stating that the agency’s claim “fundamentally misunderstands how advertisers behave.” The company argued that the pricing and placement practices in question are standard, transparent components of its advertising ecosystem, not a covert scheme to inflate costs. Amazon emphasized that its advertising tools are designed to give sellers control over their budgets and bids, with clear dashboards showing performance metrics and fees.

The company specifically pushed back on the FTC’s characterization of its “secret” overcharging. According to Amazon, every advertiser sees the same rate card and auction mechanics before agreeing to run a campaign. The alleged “hidden” fees, Amazon contends, are actually optional features—such as enhanced placement or sponsored brand slots—that sellers can activate or deactivate at will. “Sellers choose these options because they see a return on that spend,” the response stated, adding that the FTC’s interpretation would effectively criminalize standard retail media practices used across the industry.

Key Points of Amazon’s Defense

• Disclosure: Amazon maintains that all ad costs are itemized in seller invoices, with no undisclosed surcharges.
• Auction Logic: The company argues that its bid-based system is self-correcting; overcharging would drive sellers to lower bids, which would reduce Amazon’s own revenue.
• Comparison to Peers: Amazon noted that other major platforms (e.g., Google, Meta) use similar dynamic pricing based on relevance and competition.

Finally, Amazon accused the FTC of relying on cherry-picked internal emails while ignoring the broader context of how sellers actually optimize campaigns. The company vowed to fight the allegations in court, asserting that the complaint “misreads the very mechanics of digital advertising.” Analysts noted that this legal battle could reshape how regulators treat algorithmic pricing, but Amazon remained defiant, framing the FTC’s action as a regulatory overreach that would ultimately harm small businesses by limiting their access to affordable ad tools.