Amazon is notifying sellers that some ASINs will move to different fee categories on October 31, according to the agency beBOLD Digital. Fee categories decide the referral fee you pay on each sale, so a product can cost more or less to sell while its page looks exactly the same. The fix is quick: open the Fee Preview report in Seller Central before October 31 and look for products whose category changed.
What exactly is changing?
Amazon is reassigning some ASINs (the unique product ID Amazon gives each listing) to other fee categories, effective October 31. beBOLD Digital published the report on October 13, 2026, and says Amazon is notifying the sellers affected. Neither beBOLD nor the Nova Data analysis that followed it says how many products are involved or which categories are moving, and we found no official Amazon page with that list. Treat the details as secondhand until you see them in your own account.
The idea behind it is not new. Amazon’s pricing page says a product’s fee category may differ from the category shoppers see in the store. Each ASIN has exactly one fee category, and that category sets the referral fee percentage. According to the two third-party reports, it may also influence closing fees, FBA fulfillment fees and FBA return processing fees.
How big can the difference be?
Amazon’s own pricing page, as of October 2026, shows how far referral fees can sit apart: 8% for Computers and Video Game Consoles, 15% for Home and Kitchen, Toys and Games and “everything else,” and 20% for Jewelry up to $250. Clothing and Accessories is tiered: 5% on the part up to $15, 10% from $15 to $20 and 17% above $20. Most categories have a $0.30 minimum per item.
Here is a hypothetical, built only to show the math. It is not a prediction about any product. Say you sell a $30 item:
| 8% category | 15% category | |
|---|---|---|
| Referral fee | $2.40 | $4.50 |
| Difference | $2.10 more per unit |
If you sell 500 units a month, that gap is $1,050. And if your profit before ads and shipping extras was $6.00 a unit, it drops to $3.90, a 35% cut. Notice the effect: the percentage looks small on the fee page, but it lands on your margin, not on your revenue.
Who is affected?
Anyone selling on Amazon.com could have an ASIN in the group, whether you fulfill orders yourself or use FBA, since both pay referral fees. Sellers on the Individual plan ($0.99 per item sold, no monthly fee) pay referral fees too. The Professional plan costs $39.99 a month, according to the same pricing page. The plan does not shield you from a category change.
In our assessment, three kinds of seller feel this most: those with thin margins, those who run ads and set a break-even ad cost based on the old fee, and those with big catalogs where one wrong category repeats across dozens of listings. For a seller with a handful of products, the work is small. For a large catalog, start with the products where the dollar change is biggest, not the ones with the most unit sales.
What should you do before October 31?
- Open the Fee Preview report in Seller Central. Both reports say it shows each ASIN’s current fee category and upcoming changes.
- Sort by dollar impact. Multiply the fee difference per unit by your monthly volume.
- Recalculate margin and ad break-even for each product that moves up. If the new fee leaves little room, adjust the price before Q4 promotions.
- Dispute categories that look wrong. The reports say to contact Selling Partner Support with the ASIN, the current and proposed categories, the product attributes and the part of Amazon’s fee category guidelines that supports your case. Acting before the 31st avoids weeks of charges at the wrong rate, according to Nova Data.
If you still compare channels, our guide to Amazon seller fees lays out the plans and referral fees side by side, and the one on FBA versus FBM shows where fulfillment costs enter the picture.
What do we still not know?
Several things are unclear. Amazon has not published, in anything we could open, the list of ASINs or categories affected, the new percentages, or whether sellers who dispute successfully get refunds for fees charged in the meantime. Nova Data, which sells seller analytics, also notes that the dollar figures in its own example are illustrative. Check your account before changing prices, and look at the pricing page again in November to see whether the numbers on it moved.
