2026 Amazon Aged Inventory Surcharge Solver: Estimate monthly long-term storage surcharges for items stored 181+ days in Amazon fulfillment centers, identify SKUs at risk of moving into higher fee brackets within 30 days, and plan removal or liquidation actions.
SKU Inventory List & Aging Days
1
Units Stored
Days in FC
Current Tier
181–210 Days
Surcharge Fee
$30.00
30-Day Warning: Moves to 211–240 Days in 16 days+$30.00 increase
Recommended Action:Run Deals & PPC Promo
2
Units Stored
Days in FC
Current Tier
271–300 Days
Surcharge Fee
$171.00
30-Day Warning: Moves to 301–330 Days in 16 days+$18.00 increase
Recommended Action:Removal / Liquidation Order
3
Units Stored
Days in FC
Current Tier
365+ Days (1 Year+)
Surcharge Fee
$337.50
Recommended Action:Immediate Liquidation / Destroy
4
Units Stored
Days in FC
Current Tier
0–180 Days (Healthy)
Surcharge Fee
$0.00
Recommended Action:Maintain & Monitor
Verify before you act
Fees vary by ASIN, category, package size and weight, and marketplace. Confirm exact 2026 rates on the official Amazon Seller Central Documentation before pricing or sourcing decisions. This tool is provided for seller planning purposes only.
Total Aged Surcharge181+ Days Storage
Monthly Aged Inventory Surcharge
$538.50
Average Surcharge / Unit = $2.15
$539
Total Surcharge
2 SKUs
30-Day Risks
52.0%
Aged %
30-Day Risk Warning(2 SKUs Escalating)
These SKUs will cross into a higher surcharge bracket within 30 days. Execute removal or liquidation orders prior to the 15th of next month to avoid fee jumps.
Inventory Volume by Age Bracket
Units Distribution0–180d: 120 units
181–270d: 60 units
271–365d: 45 units
365+d: 25 units
Frequently Asked Questions — Amazon Aged Inventory Surcharges
Key facts regarding long-term storage fee brackets, 30-day warning rules, and removal options
What is the Amazon Aged Inventory Surcharge (formerly Long-Term Storage Fee)?▼
The Aged Inventory Surcharge is an additional monthly storage fee charged on the 15th of every month for inventory units that have been stored in Amazon fulfillment centers for 181 days or longer.
How does Amazon determine the age of my inventory?▼
Amazon uses a First-In, First-Out (FIFO) accounting method across all fulfillment centers. Sales or removals are automatically credited against the inventory that has been in Amazon's network the longest.
What are the 2026 aged inventory surcharge brackets?▼
Surcharges begin at 181 days ($0.50–$1.50/unit) and escalate across 30-day brackets (181-210d, 211-240d, 241-270d, 271-300d, 301-330d, 331-365d, and 365+ days), reaching up to $6.90/unit for standard items and $13.50/unit for oversize items.
How can I avoid aged inventory surcharges?▼
Sellers can avoid surcharges by creating Removal Orders ($0.50–$1.50 removal fee) or Liquidation Orders before the 15th of the month, running PPC advertising discounts, or creating Outlet Deals to boost velocity.
How does the 30-day risk warning feature work in this calculator?▼
The calculator checks if adding 30 days to your item's current age will push it into a higher surcharge bracket. If so, it flags the item with a 30-day warning and calculates the imminent fee increase.
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