What is the aged inventory surcharge on Amazon FBA?
The aged inventory surcharge is a monthly fee Amazon adds to units that have sat in FBA warehouses for a long time. It kicks in around 181 days and grows the longer the unit sits. It is separate from long-term storage fees and stacks with monthly storage.
Jul 26, 2026 · 3 min read
How the surcharge escalates
The fee ladder charges more per cubic foot as age crosses 181, 271, 331, and 365 days. At 365+ days the combined storage cost per cubic foot per month can exceed the value of the unit itself for low-price items.
What to do about it
Three levers actually move the number: liquidate through outlet or removal, discount aggressively for a fast sell-through, or remove and re-inbound only what you can rotate. Doing nothing is the most expensive option.
How Nova shows this
Nova flags SKUs approaching 181 days and forecasts the surcharge each month you keep the units. That converts a scary storage report into an action list ranked by dollars at stake.
Frequently asked questions
Is aged inventory surcharge the same as long-term storage fee?
No. The aged inventory surcharge replaced the older long-term storage fee structure and applies monthly across multiple age bands, not just at 365 days.
Does the surcharge apply to AWD inventory?
AWD storage has its own separate pricing and does not incur the FBA aged inventory surcharge while units sit at AWD.
When is the surcharge assessed?
It is assessed on the 15th of each month based on the age snapshot at that date.
See this in Nova
Nova surfaces this metric per SKU so you can act before your next monthly close catches it.
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