庫存倉儲超量費

如果您的現有庫存在特定月份超出了倉儲限制，那么除了月度庫存倉儲費和長期倉儲費（如適用）之外，您還需要支付【庫存倉儲超量費】。倉儲超量費取決于超出倉儲限制額度的天數。即使后來您的庫存水平降回到當月分配的倉儲限制額度之內，也仍然需要支付該費用。倉儲超量費將按照每立方英尺 $10 的標準每月收取一次，并基于您的庫存在中心占用的超出倉儲限制額度的所有空間的日平均體積（以立方英尺為單位）計算。有關更多信息，請訪問亞馬遜物流庫存倉儲限制。

體積基于已根據和要求妥善包裝且準備配送的商品的尺寸測量得出。亞馬遜保留測量或稱重已包裝商品或代表性樣本的權利，以及確定倉儲類型的權利。如與賣家提供的信息有沖突，將以亞馬遜的測量結果為準。

時間表和示例

以下示例說明了此費用的評估和收取方式：

確定倉儲限制狀態

您可以隨時查看庫存績效控制面板或貨件處理進度中的“倉儲監視器”，來判斷自己是否超出限制。如果超出限制，您將看到一個提醒圖標。如果您超出限制，您可以用當前使用值減去當前限制值，來計算該倉儲類型的當前超量值。如果您超出了每種倉儲類型的限制，并且您將產生庫存倉儲超量費，我們還會每周向您發送提醒。

庫存倉儲超量費報告

庫存倉儲超量費報告按倉儲類型和日期提供您在中心內超出倉儲限制額度的庫存的預計庫存倉儲超量費。此報告在月末生成，從次月第二天開始可供下載。您可以在【報告】菜單中選擇【配送】，然后在結果頁面的左側選擇【付款】下的庫存倉儲超量費。

字段名

計算月度庫存倉儲超量費估算值

我們會使用以下公式按倉儲類型提供月度庫存倉儲超量費估算值：

預計的月度超量費 =（當前超量值 x 每日超量費率 x 月剩余收費天數) + 截至目前產生的月度超量費

當前超量值 = 當前使用量 - 當前限制量

每日超量費率 = $10/當月天數

月剩余收費天數 = 當前月份天數 - 當日日期數值 + 1

示例：

標準尺寸商品倉儲限制值 = 100 立方英尺

庫存 = 110 立方英尺

今天 = 7 月 12 日

當月收費天數 = 31 - 12+1 = 20

每日超量費率 = $10/31 = $0.322581

當前超量值 = 10 立方英尺

截至目前產生的月度超量費 = $50（第 1-11 天已經產生的超量費）

預計的月度超量費 = (10 * $0.322581 x 20) + $50 = $114.5162

重要： 當您的庫存在本月產生超量費時，此估算值適用于所有倉儲類型。這是假定未針對當前超出倉儲限制的庫存采取任何措施的情況下預計的月度超量費。預計值應僅用于參考目的。應付費用將在每月結束后確定。

根據英寸計算立方英尺

1. 長 x 寬 x 高（以英寸為單位）得出體積。

2. 用體積數除以 1,728，得出 12 立方英寸。

示例：將 47 英寸 x 12 英寸 x 10 英寸所得的值除以 1,728 = 3.3 立方英尺。

常見問題

如何知道我是否需要支付庫存倉儲超量費？

如果您擁有專業銷售賬戶，那么您在給定月份任意一天結束時超出了給定倉儲類型的當前限制額度，則需支付倉儲超量費。即使后來您的庫存水平降回到當月分配的倉儲限制額度之內，也仍然需要支付該費用。

我如何確定當前有哪些 SKU 占用了特定倉儲類型的倉儲空間？

當前使用量是從現有庫存中減去所有待移除庫存得出的實時數據。亞馬遜物流庫齡頁面提供了所有在售的亞馬遜物流商品列表，其中標注了商品的倉儲類型（標準尺寸、大件、服裝、鞋靴、易燃物或氣溶膠），以及 ASIN 占用的空間體積（在售商品數量 x 每件商品的體積 = 立方米）。您也可通過庫齡報告獲取此信息。

雖然使用庫齡數據估算當前使用量是一種好方法，但是估算值可能因為多種原因與倉儲監視器上顯示的當前使用量值不同。

1. 當前使用量值是實時的數據源，而庫齡報告數據可能因數據處理時間而延遲最多 72 小時。

2. 當前使用量值包含不可售庫存，但不包含任何待移除商品，而庫齡數據和相關報告中不包含這些值。

3. 沒有在售商品的庫存可能會計入當前使用量（例如無在售信息的）。

亞馬遜何時向我收取庫存倉儲超量費？

如果某個月份產生了庫存倉儲超量費，亞馬遜將在該月結束后收取這筆費用。例如，假設您在 7 月 1 日超出了倉儲限制額度，并在 7 月 5 日之前移除部分庫存，使庫存水平降回到倉儲限制額度之內。在 8 月 1 日，您將需要為超出 7 月份限制量的 4 天繳納超量費。

庫存倉儲超量費是否適用于易燃物質和氣溶膠？

否，如果您超出了易燃物質或氣溶膠倉儲限制，不需要支付超量費。超量費僅適用于標準尺寸、超大尺寸、服裝和鞋類倉儲類型。

FBA inventory storage overage fees

If your existing inventory exceeds your storage limits for a given month, you will be charged an inventory storage overage fee in addition to monthly inventory storage fees and, if applicable, long-term storage fees. The overage fee is based on how many days your storage limits are exceeded. This charge will occur even if your inventory is subsequently reduced to a level below your storage limits allocated for that month. It will be charged monthly at $10 per cubic foot based on the daily average volume (measured in cubic feet) for any space your inventory occupies in Amazon fulfillment centers beyond your storage limits. For more information, visit FBA inventory storage limits.

The volume measurement is based on unit size when properly packaged and ready to ship in accordance with  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.

Timeline and example

The following example illustrates how this fee is assessed and charged:

Event with sample date	Sample values
Inventory storage overage fee accrues on July 1
The seller’s inventory exceeds their standard-size storage limit by 100 cubic feet, so they will incur an overage fee of $10 per cubic foot, or $1,000 total, if no action is taken (to be assessed and charged in August).	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 storage overage fee	$1,000
Seller reduces inventory exceeding limit on July 5
The seller creates a removal order for 80 cubic feet of standard-size inventory on July 5. No other standard-size inventory is sold or removed during July.	Standard-size overage, July 1 – 4	100 cubic feet
Standard-size removal, July 5	80 cubic feet
Standard-size overage, July 5 – 31	20 cubic feet
Inventory storage overage fee billed in August
The July seller’s average overage was 30.322 cubic feet. They will be charged $10 per cubic foot for a July total of $303.22.	July average standard-size overage	30.322
Storage overage fee per cubic foot	$10
Total July storage overage fee	$303.22

Determining storage limit status

You can check if you are over your limit at any time by viewing the Storage Monitor on the Inventory Performance dashboard or in the Shipping Queue. You will see an alert icon if you are over your limit. If you are over your limit, you can calculate your current overage for that storage type by subtracting your current usage from your current storage limit. We will also send you weekly alerts if you are over your limit for each storage type and you will incur inventory storage overage fees.

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 fulfillment centers exceeded your storage limits. This month-end report is available for download starting the second day of the following month. It is available from the Reports menu by selecting Fulfillment and on the resulting page selecting Inventory storage overage fees under Payments on the left.

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.	US
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
charged_fee_amount	Amount of the inventory storage overage fee that was incurred by this storage type on the charged date.	32.26
currency_code	Currency of the overage fee.	USD

Calculating the monthly inventory storage overage fee estimate

We provide an estimate of your monthly inventory storage overage fee by storage type using the following formula:

Estimated monthly overage fee = (current overage x daily overage rate x charge days remaining in month) + monthly overage fees incurred to date

Current overage = current usage – current limit

Daily overage rate = $10 / number of days in current month

Charge Days Remaining in Month = number of days in current month – current day number + 1

Example:

Standard-size storage limit = 100 cubic feet

Inventory = 110 cubic feet

Today = July 12

Charge days in current month = 31 – 12 + 1 = 20

Daily overage rate = $10 / 31 = $0.322581

Current overage = 10 cubic feet

Monthly overage fees incurred to date = $50 (calculated from overage already incurred in days 1-11)

Estimated monthly overage fee = (10 * $0.322581 x 20) + $50 = $114.5162

Important: This estimate applies to any storage type when your inventory has incurred overage fees in the current month. It is a monthly estimate and assumes that no action has been taken on any inventory that currently exceeds your storage limits. The estimate should be used for reference only. Charges are not finalized until after the end of each month.

Calculating cubic feet from inches

1. Multiply length x width x height in inches to get the volume.

2. Divide the volume by 1,728, which is 12 cubic inches.

Example: A unit measuring 47 x 12 x 10 inches divided by 1,728 = 3.3 cubic feet.

Frequently asked questions

How do I know if I am subject to the inventory storage overage fee?

If you have a Professional selling account, you are subject to the overage fee if you have exceeded your current 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.

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

Current usage is a real-time representation of your on-hand 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 good way to approximate current usage, it may not match your current usage value displayed on the Storage Monitor for a few reasons.

1. Current usage is a real-time data source, and the Inventory Age report data may be delayed up to 72 hours due to data processing times.

2. Current usage includes unsellable inventory and excludes any units pending removal, and these values are not included on the Inventory Age and the associated report.

3. Inventory that does not have an active listing may be counted in current usage (such as stranded inventory).

When will I be charged inventory storage overage fees?

You will be charged applicable inventory 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 July 1 and removed inventory to a level below your limit by July 5. On August 1, you would be charged for the four days you were over the limit in July.

Do inventory storage overage fees apply to flammable and aerosol storage?

No, overage fees are not charged if you exceed your flammable or aerosol storage. Overage fees apply only to standard-size, oversize, apparel, and footwear storage types.

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