Overview

Amazon's Monthly Storage Fees Report gives FBA sellers a detailed breakdown of the inventory storage charges assessed for each ASIN stored in Amazon's fulfillment centers during the prior month. This report is essential for sellers looking to understand their per-product storage costs, identify slow-moving inventory, and make informed restocking or removal decisions.

Key Points / What Sellers Need to Know

• Report Timing — The monthly storage fees report is generated between the 10th and 18th of each month, covering storage charges from the previous calendar month.
• Download Only — This report is available exclusively as a downloadable file from Seller Central; it does not display inline within the dashboard.
• Per-ASIN Breakdown — The report provides estimated storage fees at the individual ASIN level, allowing sellers to pinpoint exactly which products are driving their storage costs.
• Estimated Figures — The fees shown are estimates calculated based on daily average volume and the applicable rate for the time period. Final charges appear on your monthly settlement statement.
• Standard vs. Oversize — Storage fees differ based on product size tier, with standard-size and oversize items assessed at different per-cubic-foot rates.

How the Report Works

Amazon calculates monthly inventory storage fees based on the daily average volume (measured in cubic feet) that your inventory occupies in fulfillment centers. The rate per cubic foot varies depending on the time of year, with peak-season rates (October through December) running significantly higher than off-peak rates (January through September). Each row in the report corresponds to a single ASIN and includes key data such as the product name, fulfillment center country, size tier classification, average quantity on hand, and the estimated storage fee for that period. Sellers can use this granular data to compare storage costs across their catalog and identify products that may be costing more to store than they generate in profit.

How to Access the Report

To download the Monthly Storage Fees Report, navigate to the Reports section in Seller Central and select Fulfillment, then look under Inventory within the available report categories. Choose the "Monthly Storage Fees" report type and select the desired month. Because the report is generated between the 10th and 18th, it will not be available for the most recent month until that window has passed. Sellers who need real-time storage data in the interim can reference the Inventory Age and Inventory Health reports for supplementary insights.