Slow-moving inventory can create costs that are easy to miss when you focus on sales alone. A useful review separates the charge for storage space from inventory-age surcharges and other fulfillment-related fees.
This guide covers US Amazon FBA. Use the current Amazon FBA cost overview and your Seller Central fee schedule for rates and eligibility. We do not treat historical prices or age thresholds as current quotes.
Quick answer: what are Amazon storage fees and how do I lower them?
Monthly storage is based on occupied space. Storage utilization and aged-inventory surcharges may also apply. The low-inventory-level fee is a separate fulfillment-related charge, so reducing stock indiscriminately is not a complete cost-saving strategy.
Start with the fee report, identify which charge increased, and compare holding, replenishing, discounting, removing, or liquidating the affected stock. Include shipping and stockout risks in the decision.
Monthly inventory storage
Amazon calculates monthly storage using average daily occupied volume in cubic feet. Its US schedule distinguishes January–September from October–December, with rates depending on product characteristics. Check the applicable size tier and product type rather than assuming one seasonal multiplier fits everything.
The monthly inventory storage policy also describes the storage utilization surcharge. This can apply in addition to base storage, subject to eligibility and exemptions. Check your account’s utilization information before assuming a fee increase comes only from older units or peak-season rates.
Aged-inventory surcharges
Aged-inventory charges are separate from base monthly storage. Use your inventory-age information and the current surcharge schedule to identify units approaching a chargeable band. Do not rely on an old article’s day threshold when planning a removal.
For a slow SKU, record its age, sellable units, expected sales before the next assessment, and the estimated cost of keeping the remainder. Amazon’s US selling-fee changes page is a starting point for checking updates; confirm the relevant policy in your account.
The low-inventory-level fee is different
Amazon’s low-inventory-level fee policy describes a fee applied per fulfilled unit of eligible products based on inventory relative to demand. It is not a charge for the cubic feet used by stored units.
Check product eligibility and exemptions before adjusting replenishment. Keeping less stock can lower storage exposure while increasing stockout risk or other costs. The aim is a stock level suited to demand, lead time, and the applicable fees.
Capacity limits still matter, but the old overage fee was removed
Amazon announced that it eliminated storage overage fees effective July 1, 2024. Capacity limits still affect shipment planning. Do not confuse the discontinued overage fee with monthly storage, utilization surcharges, or aged-inventory charges.
Review the capacity available in Seller Central before planning inbound shipments. Extra stock can still accumulate other costs even without the old overage fee.
Build a SKU-level action plan
Compare the full cost of replenishment
Smaller, more frequent shipments may reduce average stored volume, but can increase inbound transport or handling costs. Larger batches may save freight while tying up cash and increasing storage exposure. Compare both options using your actual demand and lead time.
Include a realistic allowance for receiving delays and demand variation. There is no universal rule that every seller should hold less than a quarter’s stock.
Review age alongside quantity
Choose a regular review interval appropriate to your stock, and increase it when units approach a chargeable age band. Record quantities, age, projected sell-through, the next assessment date, and a person responsible for action.
Compare holding with clearing stock
For each slow product, estimate:
- Contribution from selling at the current price after expected holding costs.
- Contribution after a discount or promotion, including its costs.
- Removal or liquidation costs and the likely recoverable value.
- The cash and operational implications of each option.
These are planning estimates, not guaranteed outcomes. Check the timing rules for removals and assessments before relying on an action to prevent a charge.
Plan for the seasonal rate change
Use the October–December rates applicable to your products in the forecast. Model a slower-sales scenario as well as your expected holiday demand. That makes the cost of leftover stock visible before you commit to a shipment.
An inventory-cost review checklist
Use this as a suggested working checklist, not an Amazon requirement:
- Identify each fee by name rather than grouping all FBA charges as storage.
- Confirm the product’s size tier, rate period, and applicable exemptions.
- Review inventory age and projected sell-through before the next assessment.
- Compare replenishment savings with freight, storage, and stockout costs.
- Assign an action and review date to slow stock.
- Reconcile the next fee report against the forecast and investigate differences.
Good inventory planning does not eliminate every charge. It helps you see what you are paying for and make a more informed decision about the next shipment.
Frequently asked questions
What are Amazon FBA storage fees?
Amazon charges for the space inventory occupies in fulfillment centers. Charges can include monthly storage, a storage utilization surcharge where applicable, and aged-inventory surcharges. The low-inventory-level fee is separate: it applies to eligible fulfilled units, rather than charging for storage space. Check the current US fee schedule for your products.
What is the Amazon aged-inventory surcharge?
It is an additional charge for inventory in applicable age bands, separate from monthly storage. Thresholds, rates, and exemptions can change. Check the current fee schedule and inventory-age information in Seller Central before deciding when to sell through or remove stock.
Why are my Amazon storage fees so high in Q4?
Amazon’s US monthly storage schedule has different January–September and October–December rates. Your bill also depends on stored volume, product type, size tier, and applicable surcharges. Compare your inventory and fee reports before attributing the whole increase to the season.
How do I avoid Amazon aged-inventory surcharges?
Review inventory age and forecast sell-through before stock enters an applicable surcharge band. Compare promotions, removal, and liquidation costs with continued storage. Allow time for your chosen action, and check Amazon’s assessment rules; requesting an action does not necessarily prevent an imminent charge.