GoKawiilFTC and 22 states sue Amazon over hidden ad-auction price hikes worth $20 billion
The FTC and attorneys general from 22 states filed suit against Amazon, alleging the company secretly altered its ad-auction pricing after bids closed, extracting over $20 billion in extra charges from roughly 1.2 million advertisers since 2018. The complaint centers on a 'soft reserve' mechanism that reportedly raised final prices on Sponsored Products, Sponsored Brands, and Sponsored Display placements beyond the standard second-price model, with heavier markups during peak shopping periods like the holidays. Amazon has rejected the allegations, saying the government misunderstands how advertisers set bidding strategy.
GoKawiil's interpretation of the reporting above, not reported fact.
Sponsored ads have become a massive profit engine for Amazon, and sellers often have little choice but to buy them to stay visible in search results, making pricing transparency a major fairness issue. If regulators prove Amazon manipulated auction outcomes without disclosure, it could reshape oversight of digital ad markets and force changes to how other tech platforms run similar auction systems.
- FTC and 22 states allege Amazon secretly changed ad-auction pricing since 2018, using a 'soft reserve' tool.
- The scheme allegedly overcharged about 1.2 million advertisers by more than $20 billion, hitting 70-80% of auctions.
- Amazon denies wrongdoing, saying the lawsuit misreads how advertisers actually make bidding decisions.
Amazon Advertising Made Easy" seller marketing book — If this lawsuit makes you want to understand how Sponsored Products auctions really work, a practical guide to Amazon advertising is a smart starting point. It walks sellers through bidding strategies, campaign structure, and tracking ad spend so you can spot when your costs drift from expectations.
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Published there as: “The FTC says Amazon secretly overcharged sellers by $20 billion in ad fees”
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