Amazon FTC Advertising Lawsuit, Did Hidden Auction Surcharges Inflate Sellers’ Costs by Up to 250%?

Amazon is facing a major federal lawsuit accusing it of secretly manipulating advertising auctions and overcharging more than one million brands and sellers. On November 5, 2026, the Federal Trade Commission released newly unredacted allegations revealing that Amazon allegedly increased advertising prices by as much as 250% above auction results during Prime Day, Black Friday and other major shopping events.

The FTC and 22 state attorneys general claim Amazon used undisclosed pricing adjustments to collect additional advertising revenue while leading businesses to believe they were paying prices determined by competition between advertisers.

The lawsuit alleges that the practice affected more than 500,000 small and medium-sized businesses and generated substantial additional revenue for Amazon.

Amazon strongly denies wrongdoing. The company maintains that its advertising auctions improve relevance, benefit sellers and never charge advertisers more than their maximum bids.

The case remains pending. No court has found Amazon liable, and there is no settlement, refund program or claim form for affected sellers.

Amazon FTC Advertising Lawsuit: Key Facts

Case detail	Information
Case name	Federal Trade Commission et al. v. Amazon.com, Inc.
Case number	2:26-cv-03097-JHC
Court	U.S. District Court, Western District of Washington, Seattle
Judge	U.S. District Judge John H. Chun
Original lawsuit filed	August 31, 2026
New details released	November 5, 2026
Plaintiffs	FTC and 22 states
Defendant	Amazon.com, Inc.
Central allegation	Undisclosed advertising auction price increases
Maximum alleged increase	Up to 250% above underlying auction results on major shopping days
Businesses potentially affected	More than one million advertising customers, according to the complaint
Principal federal law	Section 5 of the FTC Act, 15 U.S.C. § 45
Relief requested	Injunction, monetary relief and state-law remedies
Settlement	None announced
Next major deadline	Amazon’s response due December 7, 2026

What Did the FTC Reveal About Amazon’s Advertising Auctions on November 5?

The FTC’s November 5 announcement disclosed figures that had previously been withheld from the public.

The updated complaint alleges that Amazon charged advertisers more than its own competitive auction results justified.

The most significant allegations include:

Period or event	Alleged result
Ordinary shopping days	Surcharges raised individual ad prices by up to 50% above auction results
Prime Day and Black Friday	Increases reached as much as 250% above auction results
2021 holiday season	Average cost-per-click increased by 20%; some advertisers experienced increases exceeding 200%
2022 holiday season	Surcharge changes generated more than $87 million in additional worldwide revenue
Prime Day 2023	One major food and beverage advertiser experienced price increases exceeding 100%
2024	About 80% of Sponsored Products winning advertisers allegedly paid their own bid amount

These percentages measure different things. They are not evidence that every advertiser’s total spending increased by the same percentage.

The FTC also alleges that Amazon executives used these practices to meet revenue targets.

In one example, the complaint describes discussions about generating at least another $40 million to close a financial shortfall.

The central accusation is that Amazon knew advertisers might lower their bids if they understood how prices were actually determined.

How Did Amazon’s Alleged Hidden Advertising Surcharges Work?

Understanding the difference between two auction systems explains the lawsuit.

Second-price auctions: What advertisers allegedly expected

Amazon historically described its Sponsored Products auctions as generalized second-price auctions.

Under a simplified second-price system, an advertiser submits a maximum bid but generally pays only enough to beat the next competitor.

For example:

• Seller A bids $4 for a click.
• Seller B bids $1 for a click.
• Seller A wins the auction.
• Instead of paying $4, Seller A might pay approximately $1.01.

Actual generalized second-price auctions can also consider relevance and ranking scores, but the important principle is that the price is linked to competitive bidding rather than automatically equaling the winner’s maximum.

Soft reserve prices: What the FTC says Amazon did

According to the complaint, Amazon introduced an internal mechanism called a soft reserve price beginning in 2019.

The FTC alleges that Amazon first determined the auction outcome, then applied an additional pricing adjustment that could increase what the advertiser paid.

Using the simplified example above, the FTC’s allegation of a 250% increase would mean that a $1 auction price could become $3.50.

That is a hypothetical illustration, not a verified individual advertiser charge.

The final charge could still remain below the advertiser’s $4 maximum bid.

This is the critical distinction: the FTC is not alleging that Amazon routinely exceeded advertisers’ stated maximum bids. It alleges that Amazon charged more than the competitive auction result while misrepresenting how the price was determined.

Amazon says its soft reserves reflect the value and relevance of advertising placements and are not deceptive surcharges.

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Why Does the FTC Say Amazon Misled Sellers?

The complaint alleges that Amazon repeatedly described its advertising system as a second-price auction while implementing changes that increasingly caused winning advertisers to pay their own bids.

According to the FTC, Amazon employees used internal descriptions referring to artificial pricing adjustments and simulated competing bids.

The government characterizes certain adjustments as effectively equivalent to shill bidding, because an artificially introduced price could affect the amount the successful advertiser paid.

The complaint also alleges that Amazon provided misleading explanations to businesses questioning unusually high costs.

For example, an advertiser asked whether the second-price auction process had changed. According to the FTC, Amazon’s response attributed higher costs to increased marketplace competition rather than revealing the pricing changes.

The FTC contends that withholding this information prevented advertisers from making informed bidding decisions.

Why would advertisers bid differently?

In a genuine second-price auction, an advertiser may bid close to the maximum value of a click because the final price usually depends on competitors.

In a first-price auction, the advertiser pays its winning bid and therefore has a greater incentive to reduce that bid.

This practice is called bid shading.

The FTC argues that Amazon retained the benefit of advertisers bidding as though they were in a second-price auction while increasingly charging first-price-like amounts.

Amazon disputes that characterization and says advertisers continuously adjust bids based on real campaign performance.

How Much Money Did Amazon Allegedly Make From the Surcharges?

The FTC alleges that the broader practices extracted tens of billions of dollars from advertising customers over several years.

That figure is a government allegation, not a court-established damages award.

The newly disclosed $87 million figure concerns additional worldwide advertising revenue allegedly generated by surcharge adjustments during the 2022 holiday season.

The complaint describes experiments in which Amazon examined whether advertisers would reduce bids or budgets after price increases.

According to the FTC, some experiments showed higher revenue without major changes in advertiser behavior, encouraging Amazon to maintain or increase the adjustments.

The lawsuit also alleges that Amazon considered the effect on return on advertising spend, commonly known as RoAS.

Higher click prices can reduce the number of profitable sales a business generates from a fixed advertising budget.

However, the existence and amount of any recoverable overcharge would need to be established through the litigation.

Which Amazon Sellers and Advertisers Could Be Affected?

The allegations primarily concern businesses that purchased paid advertising placements on Amazon.

Potentially relevant advertisers include:

• Independent third-party marketplace sellers.
• Small businesses operating Sponsored Products campaigns.
• Large brands advertising products on Amazon.
• Agencies purchasing advertising on behalf of sellers.
• Businesses participating in Prime Day or Black Friday advertising campaigns.

The complaint describes more than one million brands and sellers potentially affected by the challenged practices.

Businesses advertising from 2019 onward may have records relevant to the allegations, although the legal period for any future recovery has not been established.

There is no approved class definition or settlement eligibility list. This is a government enforcement lawsuit, not a certified seller class action.

A seller in a state that did not join the lawsuit is not automatically excluded from every possible form of future relief. The scope of any recovery would depend on court rulings, statutory authority and any subsequent distribution program.

Simply having an Amazon Seller Central account does not establish that a business was overcharged.

What Has Amazon Said in Its Defense?

Amazon published a detailed response on August 31, 2026, rejecting the FTC’s allegations.

The company argues that its advertising system prioritizes relevant products, improving results for shoppers and advertisers.

Its defense includes several specific claims:

FTC’s allegation	Amazon’s response
Hidden surcharges increased auction prices	Soft reserve prices reflect the estimated value of advertising placements
Auction descriptions misled advertisers	Maximum-bid pricing was explained in campaign-management tools
Advertisers were harmed	Inflation-adjusted average CPC remained flat from 2019 to 2024, according to Amazon
Advertisers would have lowered bids	Sellers already adjust bidding based on campaign outcomes
Auction changes extracted excess revenue	Amazon estimates relevance-based ranking saved advertisers more than $8 billion from 2021 to 2025
Higher advertising costs affected shoppers	Amazon disputes that the government established higher consumer prices

Amazon says average winning bids declined by approximately 50% between 2019 and 2025.

It also maintains that approximately 92% of selected Sponsored Products advertisements in 2024 were not submitted by the highest bidder.

Amazon acknowledges using soft reserve prices but rejects the allegation that its pricing was misleading or unlawful.

Its publicly available defense predates the November 5 disclosure of the newly unredacted details. Those additional allegations remain contested.

What Federal and State Laws Does the Amazon Advertising Lawsuit Involve?

The complaint asserts 49 claims under federal and state law.

Federal Trade Commission Act — Section 5(a)

Section 5(a) of the FTC Act, 15 U.S.C. § 45(a), prohibits unfair or deceptive acts or practices in or affecting commerce.

The FTC raises five federal counts involving alleged misrepresentations, deceptive auction manipulation, concealment, unfair omissions and unfair auction manipulation.

For a deceptive-practices claim, the government generally must establish legally actionable misleading conduct, including material representations or omissions.

The FTC alleges that the actual auction mechanics were material because they influenced how advertisers decided how much to bid.

FTC Act — Section 5(n)

Under 15 U.S.C. § 45(n), an unfair practice generally must cause or be likely to cause substantial injury that consumers cannot reasonably avoid and that is not outweighed by countervailing benefits to consumers or competition.

The FTC argues that advertisers could not reasonably avoid the alleged overcharges because they could not observe the underlying auction pricing mechanism.

Amazon contends that advertisers could see their actual costs, adjust bids and benefit from more relevant advertising placements.

FTC Act — Section 13(b)

The government seeks injunctive relief under 15 U.S.C. § 53(b), which permits federal court action to stop qualifying unlawful practices.

There is an important limitation on monetary remedies.

In AMG Capital Management, LLC v. FTC, 593 U.S. 67 (2021), the Supreme Court held that Section 13(b) does not itself authorize courts to award equitable monetary relief such as restitution or disgorgement.

That decision does not necessarily prevent the states from seeking available monetary remedies under their own laws. Any recovery must rest on applicable statutory authority.

State consumer-protection statutes

The lawsuit includes claims by 22 states under their respective consumer-protection laws.

Examples include:

State	Law
Washington	Consumer Protection Act, RCW § 19.86.020
California	Unfair Competition Law, Business and Professions Code § 17200; False Advertising Law, § 17500
New York	General Business Law §§ 349–350 and Executive Law § 63(12)
Florida	Deceptive and Unfair Trade Practices Act, Fla. Stat. § 501.204
Pennsylvania	Unfair Trade Practices and Consumer Protection Law, 73 P.S. § 201-1 et seq.
North Carolina	Unfair and Deceptive Trade Practices Act, N.C. Gen. Stat. § 75-1.1
Illinois	Consumer Fraud and Deceptive Business Practices Act, 815 ILCS 505

The other participating states are Alaska, Arizona, Colorado, Idaho, Indiana, Iowa, Kentucky, Louisiana, Maryland, Nebraska, New Jersey, Oklahoma, Rhode Island, South Carolina and Vermont.

Different states provide different enforcement powers and remedies. The legal consequences will depend on which claims survive and what violations, if any, the court ultimately finds.

Although the FTC describes the case as involving auction rigging, the complaint principally advances unfair- and deceptive-practices claims. It is not a private Sherman Act class action.

For a separate Amazon marketplace competition dispute, see Amazon and Apple iPad Class Action Lawsuit, Furdek v. Amazon Alleges a Reseller Deal Inflated Buy Box Prices.

Can Amazon Sellers Receive Refunds or Compensation?

No refund program has been announced for this lawsuit as of November 11, 2026.

The FTC and participating states are seeking court orders to stop allegedly unlawful practices and obtain monetary or other relief where legally authorized.

If the governments succeed, a future remedy might include restitution to affected advertisers, but no distribution mechanism or eligibility rules exist yet.

There is no verified payment amount per seller.

Advertising businesses should not assume that the complaint’s allegations automatically entitle them to a percentage refund of historical advertising spending.

There is also no court-approved settlement fund to divide among the more than one million potentially affected advertisers.

This enforcement action is separate from the Amazon to Pay $2.25 Million to Settle FTC Charges It Violated the Fair Credit Reporting Act, which concerned identity-theft transaction records rather than advertising prices.

What Should Amazon Sellers Do If They Believe They Overpaid?

Businesses that used Amazon Sponsored Ads can preserve records while the lawsuit progresses.

Step 1: Review historical advertising spending

In Amazon Ads, examine available Sponsored Products reports showing:

• Campaign dates and spending.
• Average cost per click.
• Bids and bidding-strategy settings.
• Click volumes and attributed sales.
• Advertising cost of sales (ACoS).
• Return on advertising spend (RoAS).

Pay particular attention to historical Prime Day, Black Friday and holiday campaigns.

Step 2: Compare campaign performance

Review periods when advertising costs increased sharply without corresponding increases in sales or conversions.

A sudden CPC increase does not prove an unlawful surcharge. Competition, relevance, bidding changes and campaign settings can also affect prices.

Step 3: Preserve invoices and reports

Download any available advertising invoices, transaction records, campaign exports and correspondence with Amazon account representatives.

Maintain records showing when bids were changed and whether Amazon provided explanations for pricing increases.

Historical campaign reports generally show actual advertiser charges, not necessarily the underlying second-price auction result. Therefore, sellers ordinarily cannot calculate the FTC’s alleged surcharge precisely from campaign totals alone.

Step 4: Monitor the official case

Follow the FTC’s case page and court docket for developments affecting monetary relief or possible advertiser notices.

There is no requirement to register with a third-party claims website at this stage.

Businesses considering an individual legal claim should consult qualified counsel about contracts, arbitration provisions, limitations periods and available legal theories.

Did Amazon’s Alleged Advertising Surcharges Raise Prices for Shoppers?

The FTC argues that higher advertising expenses can be passed along to consumers through product prices.

This would make the lawsuit relevant beyond the businesses purchasing ads.

However, the government has not established that every product advertised on Amazon became more expensive because of the challenged auction practices.

Amazon disputes any demonstrated consumer-price injury.

The distinction is important: sellers and brands are the direct purchasers of the advertising services, while the alleged effect on shoppers is indirect.

The complaint does not establish a consumer refund program for ordinary Amazon purchases.

Other Amazon refund litigation involves entirely different claims. For example, Amazon’s Prime $2.5B Lawsuit Settlement, 35 Million Prime Members Getting Refunds Up to $51—Claims Portal Now Open concerns Prime subscription enrollment and cancellation, not advertising auctions.

When Will the Amazon FTC Advertising Lawsuit Go to Court?

The lawsuit was filed August 31, 2026, in the Western District of Washington.

Judge John H. Chun subsequently approved a procedural schedule addressing discovery and possible dismissal motions.

The current court schedule includes:

Date	Scheduled event
August 31, 2026	FTC and 22 states file original lawsuit
October 28, 2026	Updated public complaint filed as Document 113
November 5, 2026	FTC announces newly unredacted allegations
November 12, 2026	Initial disclosures due
November 19, 2026	Joint status report and discovery plan due
December 7, 2026	Amazon’s deadline to answer or otherwise respond
January 27, 2027	Plaintiffs’ opposition deadline if Amazon files a dismissal motion
February 17, 2027	Amazon’s reply deadline under the dismissal briefing schedule

Dates may change through subsequent court orders.

The FTC could seek to prove its allegations through documents, expert evidence and testimony concerning Amazon’s auction algorithms.

Amazon could challenge the government’s legal theories, evidence of deception, calculations of advertiser injury and available remedies.

No trial date, final liability finding or settlement has been confirmed.

Frequently Asked Questions About the Amazon FTC Advertising Lawsuit

Did Amazon secretly overcharge advertisers by 250%?

The FTC alleges that some advertising prices were increased by up to 250% above underlying auction results on major shopping days. Amazon disputes that the practices were deceptive or unlawful. The figure is not an established average overcharge.

Can I claim money if I sold products on Amazon?

Not currently. There is no official claims program. Merely having sold products on Amazon does not establish that you purchased the advertising services at issue or suffered a recoverable loss.

Which advertisers are involved?

The allegations focus on Amazon advertising customers, particularly businesses purchasing Sponsored Products placements. The complaint also discusses Amazon’s broader Sponsored Ads auction system.

Does the lawsuit cover Prime Day advertising?

Yes. Prime Day is specifically mentioned among the events during which the FTC alleges particularly substantial surcharges.

Did the FTC uncover proof that Amazon manipulated auctions?

The complaint describes internal documents and communications that the FTC says support its allegations. Those materials have not yet resulted in a final judicial determination of liability.

Could sellers recover billions of dollars?

The government alleges substantial cumulative overcharges, but there is no confirmed recoverable fund or judgment. Any monetary award would depend on the applicable laws, evidence and court rulings.

Is this an Amazon class action settlement?

No. This is an active federal and multistate government enforcement action, not a certified private class action or an approved settlement.

Did Amazon ever charge more than an advertiser’s maximum bid?

Amazon maintains that advertisers were never charged more than their maximum bids. The FTC’s central complaint concerns charges allegedly exceeding the underlying competitive auction price, not necessarily the maximum bid.

Can regular Amazon shoppers claim a refund?

No shopper refund program exists under this advertising-auction lawsuit. The FTC alleges possible downstream effects on consumer prices, but those effects remain disputed.

When is Amazon’s next deadline?

Under the October 6 scheduling order, Amazon must answer or otherwise respond to the complaint by December 7, 2026, unless the court changes the deadline.

Bottom Line: What the Amazon Advertising Lawsuit Means for Sellers

The FTC’s November 5 disclosures add important details to its lawsuit against Amazon, including allegations of advertising price increases reaching 250% above auction results during major shopping events.

The case could have significant implications for how Amazon explains advertising auctions, uses internal reserve prices and discloses pricing information to businesses.

However, Amazon maintains that its pricing system is lawful, improves advertising relevance and benefits advertisers.

For U.S. sellers, the immediate priority is preserving advertising records and monitoring the litigation—not filing claims for compensation that has not been established.

The next major legal test will be Amazon’s response to the complaint and any subsequent ruling on dismissal motions.

Primary Sources and Court Documents

1. FTC: New Details Emerge in Amazon Ads Auction-Rigging Case — November 5, 2026 — Newly disclosed surcharge figures, internal communications and advertiser examples.
2. FTC: Updated Amazon Advertising Complaint, Document 113, October 28, 2026 — Court-filed complaint made public with additional unredacted information.
3. FTC: Original Lawsuit Announcement, August 31, 2026 — Original allegations, affected advertisers and participating states.
4. Amazon: Response to FTC Sponsored Ads Lawsuit — Amazon’s detailed defense and explanations of its auction system.
5. Court Order, Document 94, October 6, 2026 — Official litigation and dismissal briefing deadlines.
6. AMG Capital Management, LLC v. FTC, 593 U.S. 67 (2021) — Supreme Court ruling concerning monetary remedies under Section 13(b) of the FTC Act.
7. Federal Trade Commission Act, 15 U.S.C. §§ 45(a), 45(n) and 53(b); state consumer-protection statutes identified in the complaint.

Research note: This article uses the FTC’s November 5 disclosure, the updated federal complaint, Amazon’s public defense and the court’s scheduling order. Allegations have been distinguished from established judicial findings. Last reviewed November 11, 2026.

Legal disclaimer: AllAboutLawyer.com provides independent U.S. legal information, not legal advice. The FTC’s allegations have not been established by a final court judgment. Advertising records, legal deadlines and potential remedies depend on individual circumstances and applicable law.