Amazon applies storage fees to FBA inventory every month.
These charges may consist of:
- a base fee for the space your products use;
- a storage utilization surcharge for qualifying sellers with slower-moving stock.
Rates vary by product size, storage space, season, and how quickly stock sells.
Amazon usually applies the charge between the 7th and 15th of the next month.
ℹ️ Since fees and policies may change, please note that the information provided below is accurate as of July 13, 2026. You should verify the latest details on Amazon's official website.
How Amazon Calculates Storage Fees in the US #
Your monthly Amazon storage fee depends on:
- the average number of units stored each day;
- the packaged volume of each product;
- the assigned size tier;
- the month of the year;
- whether the item is classified as dangerous goods;
- your storage utilization ratio.
The basic formula is:
Monthly storage fee = average daily units × volume per unit × applicable rate
Amazon measures each product after it is fully packed and ready to ship.
Base Monthly Storage Fees #
The base monthly storage fee covers all products stored in Amazon fulfillment centers.
Amazon calculates the charge per cubic foot. The applicable rate varies by product size tier and season.
| Storage period | Standard-size | Oversize |
| January – September | $0.78 per cubic foot | $0.56 per cubic foot |
| October – December | $2.40 per cubic foot | $1.40 per cubic foot |
Storage rates rise from October through December. Fulfillment center space is in higher demand during the holiday season.
Storage Utilization Surcharge #
Amazon may charge an extra fee when you hold more stock than you ship.
The storage utilization ratio compares your average daily stored volume with your average daily shipped volume over the past 13 weeks.
The surcharge applies only when all four rules apply:
- your account is on the Professional plan;
- your first US FBA shipment was sent more than one year ago;
- your average daily inventory volume is at least 25 cubic feet;
- your storage utilization ratio is above 22 weeks.
Amazon applies the surcharge only to units stored for more than 30 days.
| Ratio | Standard-size | Oversize |
| Below 22 weeks | No surcharge | No surcharge |
| 22–28 weeks | $0.44 | $0.23 |
| 28–36 weeks | $0.76 | $0.46 |
| 36–44 weeks | $1.16 | $0.63 |
| 44–52 weeks | $1.58 | $0.76 |
| 52+ weeks | $1.88 | $1.26 |
Amazon charges these rates per cubic foot and adds them to the base storage fee. The surcharge rates do not change during peak season.
Storage Fee Example for the US Market #
For example, a seller stores an average of 100 standard-size units in July. Each unit takes up 0.05 cubic feet, and the July storage rate is $0.78 per cubic foot.
The base monthly storage fee is: 100 × 0.05 × $0.78 = $3.90
If the seller also meets the storage utilization surcharge criteria, and 10 units have been stored for more than 30 days, an extra surcharge applies: 10 × 0.05 × $0.44 = $0.22
The total monthly storage fee is: $3.90 + $0.22 = $4.12
How to Reduce FBA Storage Costs #
Good inventory planning can help you avoid high storage fees and extra surcharges.
Start by keeping stock levels close to expected demand. Sending too much inventory can increase storage costs and raise your storage utilization ratio.
You can also:
- send smaller and more frequent shipments;
- track inventory age and sell-through;
- reduce stock before October, when peak storage rates begin;
- run promotions for slow-moving items;
- create removal, disposal, or liquidation orders for excess stock;
- review bulky products that use more warehouse space;
- check which SKUs create the highest monthly charges.
The Monthly Storage Fees report can help you find these products. It shows how Amazon calculates your base fee and any storage utilization surcharge.
Use the report to compare SKUs and spot problems early. For example, a product may have low sales but still use a large amount of storage space. In this case, it may be cheaper to remove or liquidate the stock than to keep paying monthly fees.
Calculate Your US Amazon FBA Storage Fees #
Storage fees are only one part of your total FBA costs. You may also pay fulfillment fees and extra charges for aged inventory, returns, removals, or inbound placement.
See our Amazon FBA Fees guide to learn how these costs work together.
For a closer look at order processing and shipping charges, read our Amazon FBA Fulfillment Fees guide.
