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Storage Usage Fees

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Last updated: 2026-08-19 15:40:14
AI-Translated
Storage usage refers to the storage space occupied by user data. Storage usage fees are calculated based on the storage usage and storage duration. These fees are categorized into the following types based on different storage classes. The unit price for storage usage, the size of individual files, and the storage duration vary for different storage fee types. Details are provided below. Whether the corresponding storage usage fees are incurred depends on the user's actual usage scenario, the storage class of the data, and other factors.
Note:
For more information on storage classes, see Overview.
The billing unit for the storage usage billing item and storage usage packages is GB, and the unit conversion ratio is 1:1,024. For example, 1 TB of STANDARD storage usage = 1,024 GB. A STANDARD storage usage package of 1 TB can deduct fees of 1,024 GB of STANDARD storage usage.

Storage Usage Fees

STANDARD Storage Usage Fees

Description
Region
Applicable Billing Mode
STANDARD storage usage refers to the size of your data stored in the STANDARD storage class. You will be charged depending on the actual STANDARD storage usage and how long you store the data.
All regions
Pay-as-you-go
STANDARD Storage Pack

MAZ_STANDARD Storage Usage Fees

Description
Region
Applicable Billing Mode
MAZ_STANDARD storage usage refers to the size of your data stored in the MAZ_STANDARD storage class. You will be charged by the actual MAZ_STANDARD storage usage and how long you store the data.
Beijing, Shanghai, Guangzhou, Hong Kong (China), Singapore and Shanghai Finance
Pay-as-you-go

STANDARD_IA Storage Usage Fees

Description
Region
Applicable Billing Mode
STANDARD_IA storage usage refers to the storage space occupied by the user's STANDARD_IA data. The fees are calculated based on specific circumstances:
For STANDARD_IA data, if the storage duration is less than 30 days, it will be calculated as 30 days. If a single file is less than 64 KB, it will be calculated as 64 KB. For files larger than or equal to 64 KB, the actual size will be used for calculation.
If you upload an object with the same name as an existing STANDARD_IA storage type object without enabling versioning, COS will delete the original object upon successful upload. In this case, you will also be charged for the storage fees incurred due to the early deletion of the object.
All regions
Pay-as-you-go
STANDARD_IA Storage Pack

MAZ_STANDARD_IA Storage Usage Fees

Description
Region
Applicable Billing Mode
MAZ_STANDARD_IA storage usage refers to the storage space occupied by the user's MAZ_STANDARD_IA data. The fees for this storage type are calculated based on specific conditions:
For MAZ_STANDARD_IA data, if the storage duration is less than 30 days, it will be calculated as 30 days. If a single file is less than 64 KB, it will be calculated as 64 KB. For files larger than or equal to 64 KB, the actual size will be used for calculation.
If you upload an object of the same name with the MAZ_INTELLIGENT_TIERING storage class without enabling versioning, COS will delete the original object with the same name after the upload is successful. In this case, you will also be charged for the storage fees incurred due to the early deletion of the object.
Beijing, Shanghai, Guangzhou, Hong Kong (China), Singapore and Shanghai Finance
Pay-as-you-go

INTELLIGENT_TIERING Storage Usage Fees

Description
Region
Applicable Billing Mode
INTELLIGENT_TIERING storage usage refers to the storage space occupied by the user's intelligent tiered data. The fees need to be calculated based on specific circumstances:
The storage usage fees for INTELLIGENT_TIERING storage class change with the transition of data tiers. When data is in the frequent access tier, the storage usage fees are similar to STANDARD storage, and when data is in the infrequent access tier, the storage usage fees are similar to STANDARD_IA storage.
Objects smaller than 64KB will be continuously stored in the Frequent Access tier.
For INTELLIGENT_TIERING storage type, the size of each individual file, regardless of its size, is calculated based on the actual data size.
Beijing, Nanjing, Shanghai, Guangzhou, Chengdu, Chongqing, Hong Kong(China), Tokyo, Singapore, Jakarta, Virginia, São Paulo and Frankfurt
Pay-as-you-go

MAZ_INTELLIGENT_TIERING storage usage fees

Description
Region
Applicable Billing Mode
MAZ_INTELLIGENT_TIERING storage usage refers to the storage space occupied by the user's MAZ_INTELLIGENT_TIERING data. The fees need to be calculated based on specific circumstances:
The storage usage fees for MAZ_INTELLIGENT_TIERING storage vary depending on the data tier. When the data is in the frequent access tier, the storage usage fees are similar to MAZ_STANDARD storage. When the data is in the infrequent access tier, the storage usage fees are similar to MAZ_STANDARD_IA storage.
Objects smaller than 64KB will be continuously stored in the Frequent Access tier.
For MAZ_INTELLIGENT_TIERING, the actual data size is used for calculating fees, regardless of the individual file size.
Beijing, Shanghai, Guangzhou, Hong Kong(China), Singapore
Pay-as-you-go

ARCHIVE Storage Usage Fees

Description
Region
Applicable Billing Mode
ARCHIVE storage usage refers to the storage space occupied by the user's ARCHIVE storage type data. The cost is calculated based on specific circumstances.
For ARCHIVE storage type, if the storage duration is less than 90 days, it will be calculated as 90 days. If a single file is less than 64 KB, it will be calculated as 64 KB. If it is equal to or greater than 64 KB, the actual size will be used for calculation.
If you upload an ARCHIVE storage class object with the same name without enabling versioning, COS will delete the original object with the same name upon successful upload. In this case, you will also be charged for the storage fees incurred due to the early deletion of the object.
All regions
Pay-as-you-go

MAZ_ARCHIVE Storage Usage Fees

Description
Region
Applicable Billing Mode
MAZ_ARCHIVE usage refers to the storage space occupied by the user's MAZ_ARCHIVE type data. The cost is calculated based on specific circumstances.
For MAZ_ARCHIVE data, if the storage period is less than 90 days, it will be calculated as 90 days. For each stored file smaller than 64KB, it will be calculated as 64KB. Files 64KB or larger will be calculated at their actual size.
If you upload an object of the same name with the MAZ_ARCHIVE type without enabling the versioning feature, COS will delete the original object with the same name after successful upload. At this point, storage fees generated by early object deletion will also be charged.
Beijing, Shanghai, Guangzhou, Hong Kong (China), Singapore and Shanghai Finance
Pay-as-you-go

DEEP_ARCHIVE Storage Usage Fees

Description
Region
Applicable Billing Mode
DEEP_ARCHIVE storage usage refers to the storage space occupied by the user's DEEP_ARCHIVE storage class data. The fees need to be calculated based on specific circumstances:
For DEEP_ARCHIVE storage class data, if the storage duration is less than 180 days, it will be calculated as 180 days. If a single file is smaller than 64 KB, it will be calculated as 64 KB. If the file size is equal to or greater than 64 KB, the actual size will be used for calculation.
If you upload an object of the DEEP_ARCHIVE storage class with the same name without enabling versioning, COS will delete the original object with the same name after the upload is successful. In this case, you will also be charged for the storage fees incurred due to the early deletion of the object.
Beijing, Nanjing, Shanghai, Guangzhou, Chengdu, Chongqing, Tokyo, and Singapore
Pay-as-you-go

Early Deletion Fee

1.Definition
Early Deletion Fee: For storage types with a "minimum storage duration" (STANDARD_IA, MAZ_STANDARD_IA, ARCHIVE, MAZ_ARCHIVE, DEEP_ARCHIVE), if an object is deleted before reaching the "minimum storage duration" after uploading, a one-time storage usage fee will be charged based on the "remaining duration," abbreviated as "early deletion fee."

2.Trigger Scenario
The following operations will delete an object. If the storage duration is less than the minimum storage duration at this time, an early deletion fee will be generated, including:
Manually delete objects. For example: delete completely STANDARD_IA objects with insufficient "minimum storage duration."
Modify object attributes. For example: set custom headers, change storage type.
Lifecycle settlement. For example: perform data settlement through the lifecycle feature, then delete the original object with the same name after settlement.
When versioning is not enabled, upload an object with the same name to overwrite.

3.Billing Formula
Early deletion fee = Early deletion amount * Remaining duration * Corresponding storage type price * Applicable discount.
Remaining duration = Minimum storage duration - Stored duration.
Minimum storage duration
STANDARD_IA/MAZ_STANDARD_IA: 30 days.
ARCHIVE/MAZ_ARCHIVE: 90 days.
DEEP_ARCHIVE storage: 180 days.

4.Billing Rules
The billing rule for early deletion fees is described in the statement below. Details as follows:
Note:
The relevant fields in the table below correspond to the L3 detailed bill. Please download the bill in advance. For operation guidance, please refer to Bill Export Center - Export L3 Detailed Bill. For more information, view the document Billing Introduction.
Influencing Factor
Description
Billing Mode (corresponds to the "Billing Mode" field in L3 bills)
Pay-as-you-go.
Billing item (corresponds to the "Component Name" field in L3 bills)
The bill does not separately reflect the "early deletion usage fee," which is merged into the "storage usage fee" of the corresponding storage type. This means that for storage types with a minimum storage duration limitation, the storage usage fee equals the normal storage usage fee plus the early deletion fee.
For example: STANDARD_IA usage fee = normal STANDARD_IA usage fee + STANDARD_IA early deletion fee.
Billing Cycle
Remain consistent with the billing cycle of storage usage.
• Daily settlement: Billed on the day of early deletion, with charges deducted the next day.
• Monthly settlement: Billed in the month of early deletion, with charges deducted on the 1st of the next month.
Early deletion amount (corresponds to the "amount" field in L3 bills)
Billing follows the billing period, calculated by the daily/monthly average storage usage of early deleted objects.
Storage duration (corresponds to the "usage start time" and "usage end time" fields in L3 bills)
Billing follows the billing period. If the storage duration is less than the minimum duration, it will be completed to the minimum duration. If it exceeds the minimum duration, no early deletion fee applies.
If STANDARD_IA/MAZ_STANDARD_IA data is deleted early and the storage duration is less than 30 days, it will be billed for 30 days.
If ARCHIVE/MAZ_ARCHIVE data is deleted early and the storage duration is less than 90 days, it will be billed for 90 days.
If DEEP_ARCHIVE storage type data is deleted early and the storage duration is less than 180 days, it will be billed for 180 days.
Price (corresponds to the "List price" field in L3 bills)
Billing follows the billing period, based on the monthly or daily settlement price of the storage usage in the region of early deleted objects. Among them, the price per object per day = monthly price / 30.
If STANDARD_IA/MAZ_STANDARD_IA data is deleted early, it will be charged according to the storage usage pricing of STANDARD_IA/MAZ_STANDARD_IA.
If ARCHIVE/MAZ_ARCHIVE data is deleted early, it will be charged according to the storage usage pricing of ARCHIVE/MAZ_ARCHIVE.
If DEEP_ARCHIVE data is deleted early, it will be charged according to the DEEP_ARCHIVE storage usage pricing.
Applicable discount (corresponds to the "Discount rate" field in L3 bills)
The actual discount for early object deletion of storage usage applies.

5.Typical Case
Case: User A has 10GB of STANDARD_IA data in a bucket in Beijing, with daily pay-as-you-go billing for storage usage and no discount. The data was stored in COS for 3 days. On day 4, User A permanently deleted the 10GB of STANDARD_IA data. After the deletion was completed on the day, the STANDARD_IA data became 0GB. On day 4, User A incurred an early deletion fee for STANDARD_IA. On day 5, the early deletion fee was billed and charged. How to calculate User A's early deletion fee?
Analysis
Basic information: daily pay-as-you-go, 10GB infrequent access storage usage, Beijing, no discount, stored for 3 days.
Storage duration: The minimum storage duration for STANDARD_IA is 30 days. It has been stored for 3 days, not reaching the minimum storage duration. Remaining duration (30-3) days = 27 days.
Price: The Beijing STANDARD_IA list price is USD 0.01/GB/month, with a daily price conversion of USD 0.01/30/GB/day = USD 0.00033333/GB/day.
Early deletion fee: 10GB × 27 days × USD 0.00033333/GB/day × 1 (no discount) = USD 0.0899991.
Result: User A received the deduction bill for Day 4 on Day 5. The "STANDARD_IA storage usage fees" item in the bill is the early deletion fee for Day 4, which amounts to USD 0.0899991.
Note: Since the STANDARD_IA Storage Data was cleaned up on Day 4, there is no normal STANDARD_IA storage usage fee for that day, only an early deletion fee.


Billing Mode and Calculation Formula

Billing Mode
Applicable Billable Items
Calculation Method
Pay-as-you-go
STANDARD Storage Usage Fees
STANDARD_IA Storage Usage Fees
MAZ_STANDARD Storage Usage Fees
MAZ_STANDARD_IA Storage Usage Fees
INTELLIGENT_TIERING Storage Usage Fees
ARCHIVE Storage Usage Fees
MAZ_ARCHIVE Storage Usage Fees
DEEP_ARCHIVE Storage Usage Fees
Billing Formula:
Daily average storage usage fee = daily average storage usage × storage duration × price per object per day × applicable discount.
Monthly average storage usage fee = monthly average storage usage × storage duration × monthly storage unit price × applicable discount.

Among them:
1. If billed daily:
Daily average storage usage = sum of "storage usage per 5 minutes" that day / 288 (number of sampling points).
Storage duration: days.
Daily storage unit price = monthly storage unit price / 30.
Applicable discount: subject to the actual discount on storage usage.
2. If billed monthly:
Monthly average storage usage = sum of daily average storage usage in current month / days in the month.
Storage duration: months.
Monthly storage unit price: Check Product Pricing. Storage usage monthly unit price is displayed by default.
Applicable discount: subject to the actual discount on storage usage.
Storage Usage Resource Packages (Prepaid)
STANDARD Storage Usage Fees
STANDARD_IA Storage Usage Fees
There are several types of storage usage packages:
STANDARD usage package: Used to deduct the STANDARD usage. It cannot be used to deduct the MAZ_STANDARD usage.
STANDARD_IA usage package: Used to deduct the STANDARD_IA usage. It cannot be used to deduct the MAZ_STANDARD_IA usage.
During the validity period of the storage usage package, the occupied storage space each day (including purchase on the same day) can be offset by the storage usage package specifications. The insufficient portion will be charged on a pay-as-you-go basis.
Attention:
Billing days: If the settlement is made monthly, billing is based on 30 days per month. If the settlement is made daily, billing is based on the actual number of days in each month.
Bill fluctuation: With unchanged usage each month, storage usage bills will fluctuate. For a full month's use, January is billed for 31 days, February for 28 (or 29) days, and April for 30 days.

Storage Usage Pricing

Specific prices are subject to the real-time list prices published by the Tencent Cloud Pricing Center. Please go to the Product Pricing Center to view the latest unit prices and cost estimates. Details are as follows:
Pay-as-you-go Pricing: see Product Pricing - Pay-as-you-go Pricing.
Resource Package Pricing: see Product Pricing - Resource Package Pricing.

Billing Examples

Note:
Prices in the example below are for reference only. For the actual prices, please see COS Pricing.
The storage capacity is calculated in binary, for example, 1 TB = 1024 GB.

Example 1: STANDARD storage usage fees + STANDARD request fees

Assume that on 2024-01-01, User A uploaded 10 GB of data in the STANDARD storage class to a bucket in the Guangzhou region, and spent 0.1216 USD on the same day to purchase a 10 GB STANDARD usage package valid for one month and applicable across the Chinese mainland (valid for 32 days, effective from 2024-01-01 00:00:00 to 2024-02-01 23:59:59). On that day, 0.01 ten thousand STANDARD read and write requests were generated. No other operations were performed for the rest of the time, and the 10 GB data remained stored in COS. User A's pay-as-you-go billing items were charged at the list price with no discount, while the resource package enjoyed the official website discount.

Daily settlement of the fees incurred the previous day. So the total fee for user A in January 2024 includes:
STANDARD storage usage fee: The fee from 2024-01-01 0:00:00 to 2024-01-31 23:59:59 is settled daily.
STANDARD storage request fees: The standard storage read request and write request fees from 2024-01-01 0:00:00 to 2024-01-31 23:59:59 are settled daily.

Among them, the published rates for billing items related to the Guangzhou region are as follows:
STANDARD storage usage: 0.016 USD/GB/month (daily list price = monthly list price/30)
STANDARD storage usage resource package: 0.1216 USD
STANDARD storage read request, write request: 0.002 USD/10k requests

The fee analysis is as follows:
1. STANDARD storage usage fees: The STANDARD usage resource package is used to deduct 10 GB per day. The total is 0.1216 USD.
2. STANDARD storage request fees: Billed on a pay-as-you-go basis, 0.002 USD/10,000 requests * 0.01 ten thousand requests = 0.00002 USD.
3. Total cost: STANDARD storage usage fees + STANDARD request fees = 0.1216 USD + 0.00002 USD = 0.12162 USD.

In summary, the total cost for user A in January was 0.12162 USD.

Example 2: STANDARD_IA storage usage fees + STANDARD_IA request fees

Assuming user B uploaded 10GB of STANDARD_IA data to a COS bucket in the Guangzhou region on November 1, 2020, generating 100 requests. The 10GB STANDARD_IA data included 10,000 files with a size of 34KB, while other files were at least 64KB. User B spent 0.083 USD that day to purchase a 10GB STANDARD_IA Storage Usage Package with a valid duration of 1 month, universal in the Chinese mainland. There were no other operations during the rest of the time. As daily settlement of the fees incurred the previous day, so:
STANDARD_IA storage usage fees: Settled daily starting from November 2, 2020.
STANDARD_IA request fees: billed on November 2, 2020.
Fees analysis:
Pay-as-you-go:
STANDARD_IA storage Usage = 10GB + 10000 x (64-34)KB, approximately 10.286GB.
Note:
Since files in STANDARD_IA are less than 64KB, they are calculated as 64KB, so an overcharge of -10,000 x (64-34)KB storage usage fee will apply.
STANDARD_IA storage usage fees are calculated as 0.018 USD/GB/month /30 x 10.286GB x 30 days, approximately 0.19 USD.
STANDARD_IA request fees = 0.01 USD/10,000 requests x 100 requests / 10,000 = 0.0001 USD.
STANDARD_IA storage Usage Package: From November 1 to November 30, 2020, a total of 30 days, deduct 10GB of STANDARD_IA storage data daily.
Based on the analysis above, the total bill for user B in November is 0.083 + 0.0001 = 0.0831 USD.
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