KwickMetrics Amazon FBA Storage Fees Report

Storage Fees Analysis (Amazon Only): Managing FBA Storage Costs

Overview

The Storage Fees report is a dedicated financial view within the Profit Management module that focuses specifically on Amazon FBA storage costs.

Unlike the main Profit & Loss Statement, which combines all revenue and expenses, the Storage Fees report isolates storage-related charges so you can clearly understand how inventory storage impacts profitability.

This report is available only for Amazon accounts and It is not available for Walmart accounts.

What the Storage Fees Report Covers

Amazon charges storage fees for inventory stored in its fulfillment centers. These fees apply only to AFN (Amazon Fulfilled Network) inventory, also known as FBA (Fulfilled by Amazon).

The Storage Fees report includes:
  1. Monthly Storage Fees - Regular monthly charges for storing inventory in Amazon fulfillment centers
  2. Long-Term Storage Fees - Additional fees assessed for inventory stored for extended periods (both short-term and long-term ranges)

This report is available only for Amazon accounts and It is not available for Walmart accounts. These fees are displayed separately from other marketplace fees, allowing you to evaluate storage cost impact independently from referral fees, fulfillment fees, and advertising spend.

How Storage Fees Impact Profitability

Storage fees directly reduce Net Profit in your overall financial structure.

In the Profit & Loss Statement flow:

  1. Revenue is generated from customer orders
  2. Marketplace fees and promotional expenses are deducted
  3. COGS (Cost of Goods Sold) is applied
  4. Advertising costs are applied
  5. Storage fees are deducted before arriving at Net Profit
Because storage fees are assessed monthly and can vary based on inventory volume and aging, they can significantly affect margins—especially for slow-moving or overstocked products.

Why this matters:

  1. High storage fees can erode profit margins

  2. Long-term storage fees increase as inventory ages

  3. Storage costs can make some products unprofitable over time

Date Range Behavior and Availability

Storage fee data follows Amazon's assessment schedule.

Important behavior:

  1. Monthly Updates: Storage fees are updated monthly, typically mid of the following month

  2. Current Month: Current month storage fees may not appear until Amazon provides the finalized data

Common Use Cases

The Storage Fees report is commonly used to:

  1. Monitor monthly storage cost trends - Track how storage costs change over time

  2. Identify products generating high storage charges - Find which SKUs are costing the most to store

  3. Evaluate financial impact of excess inventory - Understand how overstock affects profitability

  4. Support inventory management decisions - Make informed choices about liquidation or removal

  5. Explain margin reductions - Understand why Net Profit decreased due to storage costs

This report is especially valuable for FBA-heavy businesses with large catalogs or seasonal inventory cycles.

Summary

The Storage Fees report provides focused visibility into Amazon FBA storage costs.

It allows you to:

  1. Isolate storage-related charges from other marketplace fees

  2. Monitor monthly and long-term storage assessments to track cost trends

  3. Evaluate the margin impact of inventory aging on profitability

  4. Make informed inventory management decisions based on storage costs

By separating storage fees into a dedicated report, Profit Management ensures that inventory carrying costs are clearly visible and measurable within overall profitability analysis.

Need Help?

If you have questions about the Storage Fees report or need assistance interpreting the data, contact KwickMetrics support or refer to additional help articles in the Knowledge Base.