The FTC Sues Amazon Ads: Did the E-Commerce Giant Rig Its Ad Auctions?
For over half a million small and medium-sized e-commerce sellers, advertising on Amazon is not optional; it is the tax required to survive. If you want your products to show up on page one of search results, you have to compete in Amazon's automated ad marketplace. For years, brand owners paid rising Cost-Per-Click (CPC) rates under the assumption that they were participating in a transparent, free-market bidding system.
That assumption was shattered last week, when the Federal Trade Commission (FTC) and a bipartisan coalition of 22 state Attorneys General, including Arizona AG Kris Mayes, filed a massive consumer fraud lawsuit against Amazon.
The complaint alleges that for over six years, Amazon systematically rigged its advertising auctions, using hidden surcharges and "invented" fake bids to inflate CPC costs and extract tens of billions of dollars from more than 1.2 million advertisers.
For product brands, this lawsuit exposes the potential reality behind why your ad budgets may have been shrinking your profit margins.
The Allegations: How the "Second-Price" Auction Was Allegedly Manipulated
At the heart of the FTC's complaint is an alleged critical mismatch between what Amazon promised sellers and what was actually happening behind the digital curtain.
The Complaint alleges Amazon explicitly marketed its ad platform, including Sponsored Products, Sponsored Brands, and Display Ads—as a fair "second-price" auction. Under a true second-price model, an advertiser sets a maximum bid, but if they win, they only pay one cent more than the second-highest bidder's price. This system is designed to encourage sellers to bid generously without fear of overpaying.
According to federal and state prosecutors, Amazon's auction system was a sham. The complaint alleges that beginning in 2018, Amazon altered its auction rules without notice, inserting an internal mechanism that applied a "proxy 2nd price" or "soft reserve price".
Internal documents quoted in the suit reveal that Amazon acknowledged using an "invented auction participant" to submit fake second-place bids. As a result, it allegedly forced winning bidders to pay close to their maximum allowable bid rather than a true market price.
The Impact on Sellers and Consumers: Inflated CPCs and Squeezed Margins
The economic consequences of this alleged scheme extend far beyond digital ad dashboards.
For e-commerce businesses, digital advertising is one of the largest line-item expenses on their balance sheets. The complaint alleges that Amazon deliberately increased these hidden surcharges during high-volume commercial periods like Prime Day and Black Friday, moments when brand owners could least afford to turn off their campaigns. As the Complaint notes, many of these inflated costs were ultimately passed down directly to everyday consumers in the form of higher prices for everyday goods.
Amazon has forcefully denied the allegations, stating that the FTC's claims rely on a handful of simplified internal communications and that its ad marketplace provides immense value to sellers. However, the case signals a major shift in how regulators scrutinize opaque ad-tech algorithms.
Frequently Asked Questions
What does the FTC lawsuit against Amazon Ads claim?
The FTC and 22 states allege that Amazon deceived ad buyers by claiming it used a fair "second-price" auction model, while secretly using hidden surcharges and "invented" secondary bids to force advertisers to pay higher costs.
How do inflated Amazon ad CPCs affect small businesses and consumers?
Inflated ad costs directly compress profit margins for third-party sellers who depend on Amazon for sales. To cover these higher ad expenses, many businesses are forced to raise their retail prices, passing the inflated costs onto shoppers.
Audit Your Brand's Legal Strategy
Navigating marketplace policies, digital marketing contracts, and platform disputes requires an experienced, proactive legal strategy. Whether you are scaling an online shop or auditing your brand's digital agreements, let's build a protection plan that keeps your business profitable. Contact Abrams Law today to schedule a consultation.
About the Author: This article was written by Courtney Abrams, Esq. Courtney Abrams is a trademark attorney and the founder of Abrams Law, a Phoenix-based boutique law firm focused on digital marketing, intellectual property strategy, and comprehensive brand protection for fashion/ lifestyle brands, content creators, and online shops nationwide.
Disclaimer: The information provided in this post is for general educational purposes only and does not constitute formal legal advice or establish an attorney-client relationship. If you need legal assistance securing your assets, please schedule a formal consultation directly with our firm.
