Low-Inventory-Level Fee
An FBA fee for running chronically thin on fast-moving SKUs.
Definition
The low-inventory-level fee is an additional FBA fulfillment fee Amazon charges on standard-size units when a product's historical days of supply stays persistently low relative to its demand. It penalizes chronically thin inventory because frequent small shipments are less efficient for Amazon's network.
Why the low-inventory-level fee matters for an FBA seller
Running lean used to be purely a stockout risk. This fee adds a direct cost on top of that risk: keep a popular standard-size SKU chronically thin and Amazon charges extra per unit on top of the normal fulfillment fee.
It changes the math on the just-in-time, ship-small-and-often approach many sellers drifted into to dodge storage fees. Now both extremes are penalized: too much inventory ages into surcharges, and too little triggers this fee. The efficient zone is in the middle.
How the low-inventory-level fee connects to your restock decisions
The fee is tied to your historical days of supply, so the way to avoid it is to keep enough forward coverage on affected SKUs rather than topping up in tiny, frequent shipments. That usually means slightly deeper, better-timed replenishment buys.
It pushes planning toward a balanced target band per SKU: enough days of supply to clear the low-inventory threshold, but not so deep that units age into the aged inventory surcharge. Planning to that band, by SKU, is how you avoid paying a fee at either end.
Related terms
See it applied in Inventory Hero
Inventory Hero turns these inputs into restock recommendations against your real Amazon SKUs.
Start Free Trial