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This article applies to selling in: United Kingdom

FBA inventory storage overage fees

Effective August 1, 2020, overage fees are charged when your inventory in Amazon’s fulfilment centres exceeds your storage limit during any day of the month. These are in addition to monthly inventory storage fees and, if applicable, long-term storage fees. We strongly encourage you to avoid the overage fees by taking action to lower your inventory and remain within your storage limit.

Overage fees applicability

If you have a Professional selling account in the United Kingdom, the Netherlands, Italy, Spain, Germany, or France, overage fees apply if you have exceeded your current volume limits for a given storage type by the end of the day for any day in a given month. This charge will occur even if your inventory was subsequently reduced to a level below your storage limits allocated for that month. Refer to the overage fee calculation example for more details.

Overage fee calculation

The overage fee is based on how many days your storage limits are exceeded. This charge will occur even if your inventory was subsequently reduced below your storage limits allocated for that month. It will be charged monthly at £7.80 per cubic feet (excluding taxes) based on the daily average volume (measured in cubic feet) for any space your inventory occupies in Amazon fulfilment centres beyond your storage limits.

The volume measurement is based on unit size when properly packaged and ready to ship in accordance with FBA policies and requirements. Amazon reserves the right to measure or weigh packaged units or representative samples and to determine the storage type. In the event of any conflict between an Amazon measurement and information provided by the seller, Amazon's measurement will govern.

The following example illustrates how the overage fee is assessed and charged (all the fees below exclude taxes):

Event (with dates) Sample values
Seller’s inventory exceeds their volume limit on August 1

Inventory Performance Index 280
Original standard-size storage limit 1,100 cubic feet
New standard-size storage limit 1,000 cubic feet
Inventory storage overage fee accrues (August 1)
The seller’s inventory currently exceeds their standard-size storage limit by 100 cubic feet. An overage fee of £7.80 per cubic foot, or £780 total, will be incurred if no action is taken. (The overage fee will be assessed and charged in September.) Standard-size storage limit 1,000 cubic feet
Space taken by existing standard-size inventory 1,100 cubic feet
Current standard-size overage 100 cubic feet
Potential overage fee: £780
Seller reduces inventory exceeding limit (August 5)
The seller creates a removal order for 80 cubic feet of standard-size inventory on August 5. No other standard-size inventory is sold or removed during August.

Standard-size overage,

August 1 – 4

100 cubic feet

Standard-size removal,

August 5

80 cubic feet

Standard-size overage,

August 5 – 31

20 cubic feet
Inventory storage overage fee billed (September 5)
The seller’s average overage for the month was 30.3 cubic feet. They will be charged £7.80 per cubic foot for an August total of £236. August average standard-size overage 30.3 cubic feet
Storage overage fee per cubic feet £7.80
Total August storage overage fee £236

In the example above, if the seller does not remove or sell through their inventory that exceeds the standard-size limit by September 1, they will begin accruing storage overage fees for September.

FAQ

How can I tell which SKUs are contributing to my current usage for a storage type?

Current usage is a real-time representation of your in-stock inventory minus any pending removals. FBA Inventory Age provides a list of all of your active FBA listings, along with their storage type (standard-size, oversize, apparel, footwear, flammable, or aerosol) and how much volume the ASIN is taking up (available units x volume per unit = cubic feet). This information is also available via the Inventory Age report.

While the Inventory Age data is a good way to approximate current usage, it may not match your current usage value displayed in the storage monitor for a few reasons:

  • Current usage is a real-time data source. Inventory Age report data may be delayed up to 72 hours due to data-processing times.
  • Current usage includes unsellable inventory and excludes any units pending removal. These values are not included on the Inventory Age page and the associated report.
  • Inventory that does not have an active listing may be counted in current usage (such as stranded inventory).

How do I interpret the Inventory storage overage fees report?

The Inventory storage overage fees report provides the inventory storage overage fees for each storage type and day your inventory in Amazon fulfilment centres exceeded your storage limits. This month-end report is available for download starting the second day of the following month.

Field names

Download header Description Example value
charged_date Date the usage exceeded the limit and when the estimated fee applies. The format is month-day-year. 8/1/2020
country_code Country in which the overage usage occurred. DE
storage_type Type of storage for which the usage exceeded the limit and an estimated fee applies. Note that sortable is the same as standard-size. Sortable or Non_Sortable
charge_rate Monthly inventory storage overage fee rate for a storage type. 10.00
storage_usage_volume Storage usage on the charge date. This applies to the storage type for which usage exceeded the limit and an estimated fee applies. 600
storage_limit_volume Storage limit for the storage type that exceeded its limit and for which an estimated fee applies. 500
overage_volume The volume of storage usage that exceeded the storage-type limit on the charged date. 100
volume_unit Unit of measurement for the storage limit, usage, and overage. cubic feet or cubic meters
charged_fee_amount Amount of the inventory storage overage fee that was incurred by this storage type on the charged date. 46.25
currency_code Currency of the overage fee. EUR or GBP

When will I be charged storage overage fees?

You will be charged applicable storage overage fees after the end of the month in which the fees were incurred. For example, let’s say that you exceeded your storage limit on August 1 and removed inventory to a level below your limit by August 5. On September 1, you would be charged for the four days that you were over the limit in August.

Will I be subject to overage fees if removal orders are paused or delayed?

Inventory for which you created a removal order will not be subject to an overage fee, even if the removal is paused or delayed.

If I have inventory in more than one marketplace, how do I calculate my total daily overage usage using the Inventory storage overage fees report?

You receive one daily storage limit that applies across the United Kingdom, Spain, Italy, France, and Germany marketplaces. For example, if your storage limit is 968 cubic meters for standard-size items (sortable), this represents your storage type limit for all five marketplaces combined. If the total storage type usage for a given day exceeds the network-wide storage type limit, you will be charged an overage fee for the inventory usage that exceeds your storage limit.

In the example below, the seller has standard-size (sortable) on-hand inventory in the United Kingdom, Spain, Italy, France, and Germany, with a daily storage limit of 968 cubic meters (UK is shown in cubic feet). To calculate the daily overage usage, convert to the volume unit you are most comfortable with.

Cubic meters to cubic feet conversion: 1 cubic meter equals approximately 35.315 cubic feet. To convert cubic meters to cubic feet, multiply the cubic meter value by 35.315.

Cubic feet to cubic meters conversion: 1 cubic foot equals approximately 0.028 cubic meters. To convert cubic feet to cubic meters, multiply the cubic foot value by 0.028, or divide by 35.315.

Below, the total overage usage is calculated using the values in the table.


  1. Convert United Kingdom storage usage volume to cubic meters: 13,309 x 0.028 = 372.652 cubic meters
  2. Round 372.652 to 373 cubic meters
  3. Add marketplace storage usage for total storage usage: 373 + 90 + 51 + 15 + 572 = 1,101 cubic meters
  4. Since the storage limit is 968 cubic meters, the seller has exceeded the limit by 133 cubic meters
charged_date country_code storage_type storage_usage storage_limit_volume overage_volume volume_unit
8/31/2020 GB SORTABLE 13,309 34,183 1,655 cubic_feet
8/31/2020 ES SORTABLE 90 968 11 cubic_meters
8/31/2020 IT SORTABLE 51 968 6 cubic_meters
8/31/2020 FR SORTABLE 15 968 2 cubic_meters
8/31/2020 DE SORTABLE 572 968 71 cubic_meters
8/31/2020 Total SORTABLE 1,101 968 133 cubic_meters

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