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The $20 billion ad tax: How Amazon's alleged auction rigging inflates your cart

The FTC alleges Amazon manipulated its ad system to overcharge sellers by $20 billion. Here is how those hidden costs end up in your shopping cart.

By Pricy Team
September 6, 2026 · 8 min read
Branded Pricy graphic titled "The $20 billion ad tax: How Amazon's alleged auction rigging inflates your cart" with a $20B stamp

A $20 billion hidden fee is allegedly sitting inside the prices of the products you buy every day. The Federal Trade Commission and 22 states just sued Amazon, claiming the retailer manipulated its advertising auctions to overcharge sellers. Those inflated ad costs do not stay with the merchants. They are baked into the final retail price you pay at checkout.

What the FTC lawsuit actually alleges

According to a report by The Verge, the FTC alleges Amazon has been "secretly and systematically" overcharging businesses for digital ads. The lawsuit claims this scheme extracted billions from sellers who rely on the platform to reach shoppers.

The Washington Post reports that the lawsuit accuses the company of rigging its ad pricing system. When sellers bid for the sponsored slots at the top of your search results, they participate in an automated auction. The FTC claims the platform secretly inflated the prices of these digital ad auctions.

As of the initial reporting in the sources reviewed, Amazon had not issued a public response to these specific allegations. The lawsuit remains an active legal battle, with the states and the federal government seeking to prove these claims in court.

The mechanics of a rigged ad auction

When you search for a product on a major marketplace, the first row of results is rarely an organic list of the best items. It is a billboard. Sellers bid against each other for the right to place their product in those top slots.

Typically, these systems run on a second-price auction. If Seller A bids $2.00 for a click and Seller B bids $1.50, Seller A wins the top spot but only has to pay $1.51. This is just enough to beat the next highest bidder.

The lawsuit alleges that the platform secretly altered these auction mechanics. Instead of letting the natural bids dictate the price, the FTC claims the system was designed to artificially inflate the final cost.

By tweaking the algorithm, a platform can effectively raise the floor price or introduce hidden multipliers. The seller who thought they were paying a fair market rate for a click suddenly finds their advertising budget draining much faster than expected.

How a $5 click becomes a $10 markup

Let us look at a hypothetical breakdown of how an inflated ad bid changes the price you pay at checkout. Imagine a seller offering a simple stainless steel garlic press.

Without heavy ad costs, the math looks straightforward. The item costs $4 to manufacture and ship from the factory. The platform takes a $4 fulfillment fee. The seller needs a $4 profit margin to stay in business. The total retail price sits at $12.

Now, imagine the platform inflates the cost of advertising. The seller must now spend an average of $5 in ad clicks just to secure a single sale.

The seller cannot absorb that $5 loss on a $12 item. They raise the retail price to $17 just to cover the newly inflated ad bid. You are paying $17 for a $12 item simply because the platform charged the seller a premium to show it to you.

Why sellers cannot just skip the ads

You might wonder why sellers do not simply refuse to buy ads. The reality of modern e-commerce is that organic visibility is incredibly difficult to achieve.

If a seller relies purely on organic search results, their product might appear on page three or four. Most shoppers never scroll past the first page, meaning an organic-only strategy is often a fast track to zero sales.

To get a new product off the ground, sellers have to buy sponsored placements. Once they are locked into this cycle, the platform has immense leverage over their business.

According to the coverage by Newsday, this dynamic allowed the platform to extract billions in overcharges. Sellers had no realistic alternative but to pay the inflated rates if they wanted to keep their businesses alive.

The history of the marketplace search bar

Before retail media networks became a massive revenue stream, marketplace search results were largely based on relevance and reviews. If a product was good and customers liked it, the algorithm ranked it highly.

Over the last decade, platforms realized they could monetize that massive volume of search traffic. They started replacing organic slots with paid placements, turning the search bar into a pay-to-play arena.

Today, retail advertising is a multi-billion dollar industry. According to the BBC, the lawsuit highlights how this shift has fundamentally changed the relationship between platforms, sellers, and shoppers. The search bar is no longer just a tool to help you find what you want.

It is a highly optimized engine designed to extract maximum ad revenue from the brands competing for your attention. This shift forces consumers to work harder to find genuinely good deals hidden beneath the sponsored placements.

How the $20 billion figure adds up

The $20 billion figure cited in the lawsuit represents a staggering amount of money extracted from the retail ecosystem. This is not a one-time fee, but an alleged systemic overcharge accumulated over time.

Every time a shopper clicks a sponsored listing, pennies or dollars change hands. When multiplied by millions of daily searches across countless product categories, those small overcharges snowball into billions.

For small businesses, this creates an impossible math problem. They operate on strict margins to stay competitive against massive international brands. When their ad costs rise inexplicably, they cannot just absorb the loss.

They have to pass that cost down the supply chain. That chain ends directly at your credit card statement. You are ultimately the one funding the inflated ad budgets.

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The broader impact on product quality

This alleged ad tax does not just inflate prices. It actively degrades the quality of the products you see on the first page of your search results.

When visibility goes to the highest bidder rather than the best product, manufacturers face a perverse incentive. Instead of investing money into better materials or stricter quality control, they have to pour their budget into advertising.

A seller with a mediocre product and a massive ad budget will consistently outrank a seller with a high-quality product and a small ad budget. You end up paying premium prices for fundamentally cheap items.

This creates a cycle where the most visible products are not necessarily the best ones. They are simply the ones with the highest retail margins designed to absorb massive advertising costs.

How Pricy handles this

When platforms turn search results into expensive ad real estate, finding the actual best price gets difficult. This is what a reverse-image check does for you. By scanning the product photo, Pricy compares the item against source marketplaces to see if the exact same product is available cheaper elsewhere, without the heavy ad markup baked in. It bypasses the rigged auction entirely and shows you the factory or wholesale source. Pricy is a free Chrome extension that automates this search in the background while you shop. Pricy earns a commission when you buy through its link; it never changes the price you pay.

How to shop around the ad tax

The easiest way to avoid paying an advertising premium is to scroll past the first row of search results. Marketplaces are required to label paid placements, usually with a small "Sponsored" or "Ad" tag.

These tags are often grayed out or tucked into the corner of the product image. Train your eye to look for them before you click. The products sitting just below the sponsored row are there because they earned their spot through sales and reviews, not ad bids.

If you see a sponsored product you like, search for its exact name or brand in the regular search bar. You might find the same seller offering an organic listing of the exact same item. Sometimes, the organic listing has a slightly different price or an active coupon that the sponsored listing lacks.

Another tactic is to use highly specific search terms. Broad searches like "wireless mouse" are highly competitive and dominated by expensive ads. Searching for "ergonomic vertical wireless mouse silent click" narrows the field. This allows smaller, organic listings to surface without having to outbid massive brands.

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Cost breakdownOrganic listingSponsored listing
Base product cost$12.00$12.00
Logistics and fees$6.00$6.00
Ad auction tax$0.00$8.50
Final price you pay$18.00$26.50

Frequently asked questions

What is the FTC suing Amazon for?

According to reports from The Verge and the Washington Post, the FTC and 22 states allege that Amazon secretly manipulated its digital advertising auctions. The lawsuit claims this scheme artificially inflated ad prices, resulting in a $20 billion overcharge to businesses.

Do sellers have to buy ads to be seen?

While not strictly mandatory, organic visibility is very low for most competitive categories. Sellers often feel forced to buy sponsored placements just to appear on the first page of search results, making it a necessary cost of doing business.

How do I know if I am buying a sponsored product?

Look for a small label that says "Sponsored" or "Ad" on the product card. These are usually located near the product title or the price tag. The first row of search results is almost always entirely composed of these paid placements.

Your ad tax evasion checklist

  • ✓ Scroll past the first row of search results to find organic listings.
  • ✓ Check every product card for a gray "Sponsored" or "Ad" label.
  • ✓ Use highly specific, multi-word search queries to bypass competitive ad categories.
  • ✓ Run a reverse-image search to see if the item is sold cheaper on a source marketplace.
  • ✓ Compare the sponsored item's price against similar organic items on page two.
Written by Pricy Team
We write about pricing, marketplaces, and where things really come from.

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