🇺🇸 USInventoryHigh ImpactJanuary 15, 2026
Low-Inventory-Level Fee Now Calculated at FNSKU Level
Effective: January 15, 2026
All US FBA sellers with standard-size, small bulky, or large bulky products (grocery exempt)
The low-inventory-level fee is now calculated at the individual seller-FNSKU level instead of the parent-ASIN level. It applies when a specific FNSKU falls below 28 days of supply. The fee now also covers Small Bulky and Large Bulky products, while Grocery items are newly exempt.
Real-World Impact
A standard-size product selling 10 units/day needs at least 280 units in FBA to stay above the 28-day threshold. If you drop to 200 units, you pay $0.32–$0.89 extra per unit sold until restocked.
Key Points
- Fee calculated per FNSKU instead of parent ASIN — more granular tracking required
- Triggers when supply drops below 28 days based on 30-day and 90-day demand
- Now applies to Small Bulky and Large Bulky products for the first time
- Grocery products are newly exempt from this fee
- Fee rates range from $0.32 to $2.09 per unit
What You Should Do Now
- 1Check your FBA Inventory Dashboard → Inventory Performance for each FNSKU's days-of-supply
- 2Set reorder alerts at 35+ days of supply to give yourself buffer before the 28-day cutoff
- 3For variation listings: each child FNSKU is now tracked independently — monitor all sizes/colors separately
Official Source
Amazon Seller Central →This summary is written in our own words based on the official source linked above. Policies may be updated after publication. Always check the official Amazon source for the latest details.