Q1: How often does Amazon charge storage fees, and when do they appear in my settlement?

Amazon charges monthly inventory storage fees on the 7th–15th of each month for the prior month's inventory. Aged inventory surcharges are assessed on the 15th of each month. These charges appear as deductions in your settlement report — not as separate invoices — which is why many sellers miss them until they run a manual reconciliation.

Q2: Why does my actual storage fee differ from Amazon's fee estimator?

Amazon's Revenue Calculator uses published rate card averages. Your actual fee is based on your specific inventory's daily average cubic footage, the exact month it was stored (peak vs. off-peak), and any aged surcharges that apply to slow-moving SKUs. The gap between estimated and actual fees averages 8–15% for sellers with mixed-velocity catalogs.

Q3: Can I get reimbursed for storage fees charged on lost or damaged inventory?

Yes. If Amazon loses or damages your inventory inside their fulfillment center, you are entitled to a reimbursement that should offset any storage fees charged on those units. However, Amazon does not always process these automatically. You need to file claims within the dispute window (typically 18 months for lost inventory). Ecombox's reconciliation tools help identify these gaps systematically.

Q4: How do I track FBA storage fees across multiple marketplaces like Flipkart or Meesho?

Each marketplace has its own fee and storage structure. Flipkart Smart Fulfillment and Meesho Fulfillment have separate rate cards. Ecombox unifies fee data across Amazon, Flipkart, Meesho, Zepto, and Blinkit into a single dashboard — so you can compare true margin per SKU across all channels without downloading separate reports from each platform.

Q5: What's the fastest way to find which SKUs are losing money because of storage fees?

The fastest method is to pull your Settlement Report and map actual storage fee deductions back to each ASIN for the last three months. Ecombox's Diagnose SKU feature does this automatically — scoring each SKU on sessions, conversion, return rate, and order-count trend, then surfacing the ones where storage costs are eroding margin below your threshold. Most sellers find 10–20% of their catalog is either break-even or negative once storage is properly accounted for. ---

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Amazon FBA Storage Fees Eating Your Profit? Here's How to Calculate True Margin and Recover Hidden Costs

Ecombox · August 17, 2026 · 13 min read

Amazon FBA Storage Fees Eating Your Profit? Here's How to Calculate True Margin and Recover Hidden Costs

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