How to Audit Your Amazon Ad Spend Following FTC Auction Allegations
The FTC alleges Amazon manipulated ad auctions to drive up seller costs. Small business owners should switch to fixed bids, audit their CPC jumps, and ignore Amazon's suggested bid prices to protect their profit margins.
Key Takeaways
- The FTC claims Amazon's auction tactics led to a $20 billion squeeze on sellers.
- Rising ad costs may be due to auction manipulation rather than just competition.
- Switching from Dynamic Bids to Fixed Bids gives you more control over your spend.
- Manual CPC caps are essential to ensure every click remains profitable.
- Regular Search Term Reports are the best way to spot bid inflation early.

The Cost of the Hidden Ad Tax
You've probably noticed your Amazon advertising costs creeping up. There's a specific reason for that beyond just standard competition. The Federal Trade Commission (FTC) recently alleged that Amazon manipulated its ad auctions to increase profits, a move that contributed to a $20 billion crunch for sellers. According to MYCPE ONE News & Insights, these practices likely pushed up prices for the people buying your products too.
When the system that decides how much you pay for a click is under fire, you can't just set your bids and walk away. You need to verify that your money buys visibility rather than just padding a corporate balance sheet. I'll show you how to perform an Amazon ad auction audit (a deep check of your bidding data) to see where your cash goes and how to protect your bottom line.
Strip Back Your Advertising Costs
If you're a small business owner, every dollar you spend on Sponsored Products needs to return a profit. The FTC allegations suggest auction mechanics might have been tuned to favor Amazon's revenue targets over seller efficiency. To fight back, look at your data through a different lens. Start by pulling your Search Term Reports for the last 60 days. You're looking for terms where your cost per click (CPC) is significantly higher than your historical average without a matching jump in sales.
I see many sellers let their bids run on autopilot. That's a mistake. If the auction is being manipulated, suggested bids are no longer a helpful guide. They become a ceiling that keeps rising. You should manually cap your bids at a level that guarantees a profit based on your conversion rate (the percentage of visitors who actually buy). If you convert at 10% and your product profit is $10, you can't afford a CPC over $1. It's simple math, but many people ignore it because the Amazon dashboard tells them to spend more to stay competitive.
The Reality of Rising Bids
Amazon controls the stadium, the teams, and the referees. When the FTC points out that sellers are feeling a $20 billion squeeze, it means the default settings in your ad account likely work against you. You have to be the one to step in and tighten the screws on your budget. Don't trust the automated suggestions. They're designed to maximize spend, not your take-home pay.
Your 5-Step Amazon Ad Auction Audit
I recommend doing this audit once a week until you see your costs stabilize. It doesn't take long, but it will save you thousands of dollars over a year. Here is the exact process I'd use to wire up a more efficient account.
- Check your CPC to ACOS ratio. ACOS stands for Advertising Cost of Sales. If your CPC is rising but your ACOS is ballooning faster, you're likely caught in an inflated auction. Look for keywords where the bid price jumped more than 20% in 30 days without a change in your conversion rate.
- Identify Ghost Keywords. These are terms that get thousands of impressions but zero clicks. In a manipulated auction, these can sometimes be used to drive up the perceived value of a category. If a keyword isn't clicking, kill it. Don't wait for it to optimize.
- Switch to Fixed Bids. Amazon offers Dynamic Bids where they can raise your bid by 100% if they think a sale is likely. Given the current allegations, I'd move to fixed bids or Down Only. This takes the control away from the algorithm and puts it back in your hands.
- Analyze your Placement Data. Check if you're paying a premium for Top of Search and if that premium actually results in more profit. Sometimes the second or third page is where the actual profit lives because the bid costs are 50% lower.
- Audit your Brand Terms. Ensure you aren't overpaying to show up for your own company name. If your competitors aren't bidding on your name, drop your bids to the minimum. Don't let the auction system trick you into paying $2 for a customer who was already looking for you.
What to Watch Next
The legal battle between the FTC and Amazon will take time. However, the immediate impact is that the spotlight is now on how these auctions function. I expect to see more transparency reports or changes to how suggested bids are calculated in the coming months. For now, your best defense is a tight grip on your data. Stop trusting the platform to spend your money wisely. Treat every dollar like a seed that has to grow, or don't plant it at all. If you want to see exactly how to set these caps and read these reports live, my 3-day training covers the exact clicks you need to make.
FAQ
What is ACOS and why does it matter for my audit?
ACOS is Advertising Cost of Sales. It tells you what percentage of a sale went to ads. If this number is rising while your conversion rate stays the same, you are likely overpaying in the ad auction.
Should I use Amazon's suggested bids?
Generally, no. Suggested bids often reflect the highest prices in the auction. Use your own profit margins to calculate the maximum you can afford to pay for a click instead.
What are Dynamic Bids?
This is a setting where Amazon automatically raises or lowers your bid in real-time. Given recent allegations of auction manipulation, using 'Down Only' or 'Fixed Bids' is a safer way to control your costs.