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FTC lawsuit against Amazon reveals alleged hidden advertising practices

Amazon is sued by the FTC for allegedly imposing undisclosed advertising fees on businesses over years.

10 September 2026 · 5 min read

FTC lawsuit against Amazon reveals alleged hidden advertising practices

Amazon, one of the largest e-commerce platforms in the world, is facing serious allegations stemming from a new lawsuit filed by the intelligence-models/">Federal Trade Commission (FTC) along with 22 states. The legal action accuses Amazon of secretly inflating advertising costs for businesses using its services.

The lawsuit suggests that over the span of seven years, Amazon implemented a scheme designed to increase revenue from its advertising auctions. This action has reportedly impacted over 1 million brands and businesses, potentially generating tens of billions of dollars in additional revenue for the tech giant.

### Lawsuit details and implicated states

The lawsuit, filed this week, specifically highlights the tactics employed in Amazon's advertising auctions. The FTC has teamed up with representatives from states including Alaska, California, Florida, and New York to pursue these allegations. These states claim that the practices in question represent a severe breach of ethical standards within the digital advertising space.

Amazon’s advertising services, including Sponsored Products ads and Sponsored Brands ads, are at the core of the accusations. According to the complaint, Amazon assured more than 500,000 small to medium-sized businesses that its auction process operated on a second-price model. In this format, the winning advertiser would only pay one cent more than the next highest bidder. This model was ostensibly designed to encourage advertisers to bid more freely under the impression that their costs were kept in check.

### The 'secret ad surcharge' revealed

However, beginning in 2019, the FTC alleges that Amazon made a covert change to its advertising process without informing these advertisers. The complaint claims that Amazon implemented what it internally referred to as a “soft reserve price.” This involved the introduction of a fictitious bidder to manipulate auction outcomes, artificially inflating the prices that advertisers were required to pay significantly.

The FTC's allegations suggest that Amazon's modifications transformed what was marketed as a low-risk second-price auction into a first-price auction. Advertisers were reportedly charged their full winning bid approximately 80% of the time. This meant that instead of having a buffer to work with and minimizing costs, businesses found themselves routinely paying more than they anticipated.

This practice represents what the FTC described as a shill bid, where prices were not reflective of the true market competition. Instead, Amazon was found to be generating higher outcomes by creating artificial inflation in bids, which could greatly affect advertising budgets for many businesses.

### Amazon’s defense and response to the allegations

In response to the lawsuit, Amazon characterized the legal claims as “misguided.” The company argues that the FTC’s understanding of advertising operations is fundamentally flawed. Amazon states that its auction system evaluates billions of bids across a variety of placements and formats, thus prices can vary based on competition and demand.

Amazon asserts that advertisers are adequately informed about the pricing dynamics of its auctions. The company further defends its actions by emphasizing that the platform fosters a competitive environment, which benefits businesses that choose to advertise through its network.

This defense comes despite the fact that Amazon's advertising revenue topped $68 billion in the previous fiscal year, showcasing the significant stakes involved for both the company and the advertisers who rely on its platform for visibility and market reach.

### Implications of the lawsuit for the advertising landscape

The ongoing lawsuit against Amazon may have profound implications for the digital advertising ecosystem at large. If the FTC's assertions hold up in court, it could not only lead to considerable penalties for Amazon but also set a precedent for greater accountability across digital platforms.

This case highlights the need for transparency within advertising practices, particularly over auction mechanisms. Many businesses rely heavily on digital ads for growth, and any compromise in the fairness of ad pricing can have cascading effects on the entire industry.

Moreover, the scrutiny placed on Amazon might prompt other digital platforms to revisit their advertising policies, ensuring they adhere to ethical advertisement practices moving forward.

### Looking ahead: The future of digital advertising regulation

The allegations made in this lawsuit have ignited a conversation about the importance of regulatory oversight in the rapidly evolving digital advertising sector. As more small businesses enter the digital space, ensuring fair practices will be crucial to maintaining a healthy marketplace.

This case serves as a reminder for digital platforms to uphold integrity in their operations, fostering trust among advertisers and consumers alike. As the lawsuit unfolds, stakeholders across the advertising industry will be watching closely, as the verdict could have significant implications for how digital ad businesses are conducted in the future.

### Common questions regarding the FTC lawsuit against Amazon

What are the primary allegations against Amazon in the lawsuit?

The lawsuit alleges that Amazon secretly inflated advertising prices through deceptive practices in its auction system, transforming a second-price auction into a first-price model.

Which states are involved in the lawsuit against Amazon?

The lawsuit includes 22 states, such as California, Florida, New York, and Illinois, alongside the FTC as the primary plaintiff.

How does Amazon defend its advertising practices?

Amazon claims that the lawsuit is misguided and insists that its auction system is transparent, with advertisers properly informed about pricing dynamics across its various ad formats.