Storage Usage Fees
Last updated:2025-11-12 15:27:47
Storage usage refers to the used storage capacity. You are charged by the objects' size and how long you stored them. For different storage classes, the unit price, minimum object size, and minimum storage duration are different as described below. The actual fees depend on the use case and storage class of the object.
Note:
For more information on storage classes, see Storage Class Overview.
The billing unit of the storage usage billing item and storage usage packages is GB, and the usage unit conversion ratio is 1:1,024.For example, 1 TB of standard storage usage equals 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 Billable Item
STANDARD storage usage fees
Billable Item Description | Applicable Region | Applicable Billing Mode |
STANDARD storage usage refers to the size of your data stored in the STANDARD storage class. You will be charged by the actual STANDARD storage usage and how long you store the data. | All regions | Pay-as-you-go STANDARD storage package |
MAZ_STANDARD storage usage fees
Billable Item Description | Applicable 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
Billable Item Description | Applicable Region | Applicable Billing Mode |
STANDARD_IA storage usage refers to the size of your data stored in the STANDARD_IA storage class. You will be charged depending on the actual use case: Objects stored less than 30 days will be calculated as 30 days. A single object smaller than 64 KB will be calculated as 64 KB, while objects larger than or equal to 64 KB will be billed based on their actual sizes. If you successfully uploaded an object to STANDARD_IA without enabling versioning, COS will delete the existing object (if any) that has the same name. In this case, storage usage fees will also be incurred for the early deletion of the object. | All regions | Pay-as-you-go STANDARD_IA storage package |
MAZ_STANDARD_IA storage usage fees
Billable Item Description | Applicable Region | Applicable Billing Mode |
MAZ_STANDARD_IA storage usage refers to the size of your data stored in the MAZ_STANDARD_IA storage class. You will be charged depending on the actual use case: Objects stored less than 30 days will be calculated as 30 days. A single object smaller than 64 KB will be calculated as 64 KB, while objects larger than or equal to 64 KB will be billed based on their actual sizes. If you successfully uploaded an object to MAZ_STANDARD_IA without enabling versioning, COS will delete the existing object (if any) that has the same name. In this case, storage usage fees will also be incurred for the early deletion of the object. | Beijing, Shanghai, Guangzhou, Hong Kong (China), Singapore, Shanghai Finance | Pay-as-you-go |
INTELLIGENT_TIERING storage usage fees
Billable Item Description | Applicable Region | Applicable Billing Mode |
INTELLIGENT_TIERING storage usage refers to the size of your data stored in the INTELLIGENT_TIERING storage class. You will be charged depending on the actual use case: The storage usage fees vary by tier of your stored objects. If your objects are stored in the frequent access tier, you will be charged at STANDARD prices. If your objects are stored in the infrequent access tier, you will be charged at STANDARD_IA prices. Objects smaller than 64 KB will always be stored in the frequent access tier. All objects will be billed based on their actual sizes. | Beijing, Nanjing, Shanghai, Guangzhou, Chengdu, Chongqing, Tokyo, Singapore, and Virginia | Pay-as-you-go |
MAZ_INTELLIGENT_TIERING storage usage fees
Billable Item Description | Applicable Region | Applicable Billing Mode |
MAZ_INTELLIGENT_TIERING storage usage refers to the size of your data stored in the MAZ_INTELLIGENT_TIERING storage class. You will be charged depending on the actual use case: The storage usage fees vary by tier of your stored objects. If your objects are stored in the frequent access tier, you will be charged at MAZ_STANDARD prices. If your objects are stored in the infrequent access tier, you will be charged at MAZ_STANDARD_IA prices. Objects smaller than 64 KB will always be stored in the frequent access tier. All objects will be billed based on their actual sizes. | Beijing, Shanghai, Guangzhou | Pay-as-you-go |
ARCHIVE storage usage fees
Billable Item Description | Applicable Region | Applicable Billing Mode |
ARCHIVE storage usage refers to the storage space occupied by the user's ARCHIVE type data. The cost is calculated based on specific circumstances. Objects stored less than 90 days will be calculated as 90 days. A single object smaller than 64 KB will be calculated as 64 KB, while objects larger than or equal to 64 KB will be billed based on their actual sizes. If you successfully uploaded an object to ARCHIVE without enabling versioning, COS will delete the existing object (if any) that has the same name. In this case, storage usage fees will be incurred for the early deletion of the object. | All public cloud regions (except Jakarta), Tencent Cloud Financial Availability Zone | Pay-as-you-go |
MAZ_ARCHIVE storage usage fees
Billing Description | Applicable 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
Billable Item Description | Applicable Region | Applicable Billing Mode |
DEEP_ARCHIVE storage usage refers to the size of your data stored in the DEEP_ARCHIVE storage class. You will be charged depending on the actual use case: Objects stored less than 180 days will be calculated as 180 days. A single object smaller than 64 KB will be calculated as 64 KB, while objects larger than or equal to 64 KB will be billed based on their actual sizes. If you successfully uploaded an object to DEEP_ARCHIVE without enabling versioning, COS will delete the existing object (if any) that has the same name. In this case, storage usage fees will be incurred for 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 Scene
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: 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 | Details |
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 + low frequency 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 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 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 the 4th day, User A deleted the 10GB of STANDARD_IA data completely. After the deletion was completed on the same day, the STANDARD_IA data became 0GB. On the 4th day, User A incurred an early deletion fee for STANDARD_IA. On the 5th day, 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 STANDARD_IA usage, Beijing, no discount, stored for 3 days.
Storage duration: Minimum storage duration for STANDARD_IA is 30 days. Data was stored for 3 days, not meeting the minimum requirement. Remaining duration (30-3) days = 27 days.
Price: The list price for STANDARD_IA in Beijing is $0.01/GB/month, with a daily price conversion of $0.01/30/GB/day = $0.00033333/GB/day.
Early Deletion Fee: 10GB × 27 days × $0.00033333/GB/day × 1 (no discount) = $0.0899991.
Result: User A received the billing for Day 4 on Day 5. The "low-frequency storage usage fee" was the early deletion fee for Day 4, totaling $0.0899991.
Note: Since the low-frequency storage data was cleaned up on Day 4, there was no normal STANDARD_IA usage fee for that day, only a low frequency early deletion fee.
Billing Modes and Calculation Formulas for Storage Usage Fees
Billing Mode | Applicable Billable Item | Calculation Formula |
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. Within the validity period of the storage usage package, the storage space occupied each day (including the purchase day) can be deducted from the specifications of the storage usage package. The insufficient part will be billed on a pay-as-you-go basis. |
Note:
Billing days: If settled monthly, billing is based on 30 days per month. If settled 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
Billing Examples
Note:
Prices in the examples below are for reference only. For the actual prices, see Pricing | Cloud Object Storage.
The storage usage is calculated in binary, for example, 1 TB = 1024 GB.
Example 1: STANDARD Storage Usage Fees + STANDARD Request Fees
Assume that on January 1, 2024, user A uploaded 10 GB of data of the STANDARD type to a COS bucket in Guangzhou region, and spent 0.1216 USD on the same day to purchase a 10-GB STANDARD usage package valid for one month and universal in the Chinese mainland (with a validity period of 32 days, effective from 2024-01-01 0:00:00 to 2024-02-01 23:59:59). On the same day, 0.01 ten thousand STANDARD read/write requests were made, with no other activities for the rest of the time, and the 10-GB data was stored in COS throughout. User A's pay-as-you-go charges are not discounted and are billed at the published price; the resource package enjoys an official discount.
Settlement is based on the charges incurred on the previous day. Therefore, user A's total fees for January 2024 include:
STANDARD storage usage fees: The STANDARD storage usage fees from 2024-01-01 0:00:00 to 2024-01-31 23:59:59, settled daily.
STANDARD request fees: The STANDARD read/write request fees from 2024-01-01 0:00:00 to 2024-01-31 23:59:59, settled daily.
The published prices for the relevant billing items in the Guangzhou region are as follows:
STANDARD usage: 0.016 USD/GB/Month (Daily published price = Monthly published price/30)
STANDARD usage resource package: 0.1216 USD
STANDARD read/write requests: 0.002 USD/10,000 Times
Fees analysis:
1. STANDARD usage fees: Using the STANDARD usage resource package, 10 GB is deducted daily. Total: 0.1216 USD.
2. STANDARD request fees: Pay-as-you-go, (0.002 USD/10,000 times) x (0.01 x 10,000 times) = 0.00002 USD.
3. Total fees: STANDARD usage fees + STANDARD request fees = 0.1216 USD + 0.00002 USD = 0.12162 USD
In conclusion, user A's total fees in January is 0.12162 USD.
Example 2: STANDARD_IA storage usage fees + STANDARD_IA request fees
Assuming a user B uploaded 10GB of STANDARD_IA type data to a COS storage bucket in the Guangzhou region on November 1, 2020, generating 100 requests. The 10GB of STANDARD_IA type data included 10,000 files with a size of 34KB, while other files were equal to or greater than 64KB. There were no other operations during the rest of the time. By 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: Settled on November 2, 2020.
Fees analysis:
STANDARD_IA storage usage = 10 GB + 10,000 * 30 KB = 10.286 GB
STANDARD_IA storage usage fees = 0.018 USD/GB/month / 30 * 10.286 GB * 30 days = 0.19 USD
STANDARD_IA request fees = 0.01 USD/10,000 requests * 100 requests / 10,000 = 0.0001 USD
In summary, the total bill for user B in November is calculated as follows: 0.19 + 0.0001 = 0.1901 USD.
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