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Cost bills

Function introduction

Cost bills feature offers fee amortization capabilities and allows you to allocate your cloud resource fees over calendar months based on designated allocation rules, detailing allocation data of both prepaid fees and postpaid fees.

Description: Cost data, as allocation data calculated based on specific algorithms, is for reference only and can not be used for reconciliation. Please use bill details or transaction details for reconciliation.

Operating instructions

1. Activate Cost bills service. Choose Bill Management - Cost billsand activate cost bills service. After activation, you can view cost bills data generated starting from the month of activation. A two-day delay exists between cost bills and bill details.

2. View cost bills data. After activation, the service needs one or two days for data initialization. After that, you can enter the Cost bills service to view the overview and detailed cost data, including the following fields:

Month of allocation: a calendar month over which a fee is allocated. For example, if you spend ￥ 365 on a one-year subscription of an Elastic Compute Service (ECS) instance, then the amount allocated to the month January is ￥ 31.

Accounting period: the accounting period to which the bill of an allocated fee belongs. For example, if you purchase a one-year subscription of an ECS instance in January, then the original bill belongs to January but Cost bills service can allocate the fee to months based on the actual period of resource usage.

Allocation type: the type of allocation. Supported allocation types include new purchase fee allocation, renewal fee allocation, specification change fee allocation, and pay-as-you-go fee allocation.

Allocation start time and allocation end time: the shortest period for resource fee allocation. For prepaid fees, the allocation start time and end time are usually 00:00:00 and 23:59:59 on a day. For postpaid fees, the allocation period is the settlement period in the corresponding bill details.

Daily allocated amount - Pre-tax amount: For a prepaid fee, this field indicates the average amount allocated to each day, with the third and later decimal places removed. The last period allocated amount is the difference between the total amount and the amount already allocated. For a postpaid fee, this field is the pre-tax amount in the bill details. The allocation logic of fields like the gross amount is the same as that of the Pre-tax amount.

Number of days with allocated amounts: the number of days to which amounts have been allocated in a month. For example, if a prepaid fee is allocated from May 1 to 15, then the number of days with allocated amounts in May is 15. For a postpaid fee, the number of days with allocated amounts is the number of days over the allocation period in the corresponding cost details.

Already allocated for current period - Pre-tax amount: the pre-tax amount that has been allocated to the month of allocation. For example, if you spend ￥ 365 on a one-year subscription of an ECS instance in January, then the amount allocated to May is ￥ 31. The allocation logic of fields like the gross amount is the same as that of the pre-tax amount.

Already allocated for previous period - Pre-tax amount: the pre-tax amount that has so far been allocated before the beginning of the current month. For example, if you spend ￥ 365 on a one-year subscription of an ECS instance in January, then the amount already allocated at the beginning of May is the sum of the amounts allocated from January to April. The allocation logic of fields like the gross amount is the same as that of the pre-tax amount.

Amount not allocated - Pre-tax amount: the amount left of the total bill amount minus the amount already allocated at the beginning of the current period and the amount allocated over the current period. The allocation logic of fields like the gross amount is the same as that of the pre-tax amount.

Other fields: refer to the description of bill details in Bill management instructions document in the bill details;

3. Obtain the Cost bills data. You can obtain the data by exporting from the page. 1) Export from the page: Click "Export Bill CSV" and select the Cost bills data you want to export.

Cost Allocation Scenarios, Descriptions, and Rules

Allocation Scenario	Allocation Description	Allocation Rule	Example and Description Note: The number of kept decimal places of daily allocated amounts is consistent with that in the bill details. The last allocated amount is the difference between the total amount and the amount already allocated. In scenarios like new purchases and specification changes, the first day (usually less than 24 hours) is considered a whole day and included in the allocation period.
Allocation of nondeductible prepaid fees	Suitable for the fee allocation of resources that adopt the subscription billing method and are nondeductible,such as monthly-subscribed prepaid ECS instances.	Linear allocation over the valid period, with an equal amount allocated to each day. Daily allocated amount = Order amount/Number of days during the valid period.	Scenario 1: new purchase and renewal Example: A customer purchases a one-month subscription (validity from January 1 to 31) of an ECS instance on January 1, 2023. The order number is Order001 and the fee is ￥62. On January 20, the customer renews the subscription for another month (validity from February 1 to 28). The order number is Order002 and the fee is ￥ 62. Then the fees are allocated as follows. From January 1 to 31, 2023: Order001 is within its period of validity. Daily allocated amount = ￥ 62/31 = ￥ 2. Order002 is not within its period of validity and its fee is not allocated. From February 1 to 28, 2023: Order001 is not within its period of validity and its fee is not allocated. Order002 is within its period of validity. Daily allocated amount = ￥ 62/28 = ￥ 2.21. Scenario 2: new purchase and unsubscription A customer purchases a one-month subscription (validity from January 1 to 31) of an ECS instance on January 1, 2023. The order number is Order001 and the fee is ￥ 62. On January 20, the customer unsubscribes and an unsubscription order Order002 is generated with a refund of ￥ 20. Then the fees are allocated as follows. From January 1 to 19, 2023, Order001 is within its period of validity. Daily allocated amount = ￥ 62/31 = ￥ 2. On January 20 when the customer unsubscribes, the amount in Order001 that has not been allocated is ￥ 62 - ￥ 219 = ￥ 24. The refund generated by Order002 is ￥ 20. The total fee allocated to January 20 is ￥ 24 - ￥ 20 = ￥ 4. Scenario 3: new purchase and specification change A customer purchases a one-month subscription (validity from January 1 to 31) of an ECS instance on January 1, 2023. The order number is Order001 and the fee is ￥ 62. On January 20, the customer upgrades the instance specifications, thereby generating Order002 including SubOrder001 (remaining value of the original specification) and SubOrder002 (value of the new specification within the remaining period of validity). The period of validity of Order002 is from January 20 to 31, 2023. The remaining value of the original specification is ￥ 18 and the value of the new specification within the remaining period of validity is ￥ 36. Then the fees are allocated as follows. From January 1 to 19, 2023: Order001 is within its period of validity. Daily allocated amount = ￥ 62/31 = ￥ 2. From January 20 to 30: Order001 is within its period of validity. Daily allocated amount = ￥ 62/31 = ￥ 2. SubOrder001 is within its period of validity. Daily allocated amount = ￥ -18/12 = ￥ -1.5. SubOrder002 is within its period of validity. Daily allocated amount = ￥ 36/12 = ￥ 3. On January 31, 2023, the allocated amount = (Total value of the orders - Total amount allocated over the previous days = (￥ 62 - ￥ 230) + ￥ [-(18-1.511)] + ￥ 36 - ￥ 311= ￥ 3.5.
Allocation of deductible prepaid fees	Suitable for the fee allocation of resources that adopt the subscription billing method and are deductible,such as cycle resource plans of Real-time Communication (RTC), resource plans with fixed capacity for the specified period of validity provided by Growth Analysis, and reserved capacity plans provided by Elastic Block Storage (EBS).	1. Cycle resource plans Linear allocation over the valid period, with an equal amount allocated to each day. Daily allocated amount = Order amount/Number of days during the valid period. 2. Resource plans with fixed capacity for the specified period of validity Allocation based on actual usage. During the period of validity, the amount allocated to each day is calculated based on the ratio of the resources used on this day to the total. 3. Reserved EBS capacity plans Allocation based on actual usage. During the period of validity, the amount allocated to each day is calculated based on the ratio of the capacity used on this day to the total.	Cycle resource plans and nondeductible monthly-subscribed prepaid resources adopt the same duration-based linear allocation rule that allocates an equal amount to each day. Example: A customer spends ￥ 16,800 on a one-year RTC cycle call duration plan. The amount allocated to each day is ￥ 16,800 divided by 365, which is ￥ 48.72 with the third and later decimal places removed. The amount allocated to the last day is ￥ 16,800 - ￥ 46.02*364 = ￥ 48.72. Example of the fee allocation of a resource plan with fixed capacity for the specified period of validity: On January 1, 2023, a customer spends ￥ 120,000 on a one-year Growth Analysis event resource plan that supports a billion events. The customer's usage details are as follows: 100 million events are deducted from the resource plan on January 5 and 200 million events on January 30 and 200 million events on May 20. No events are deducted on the other days. Based on the actual usage, the cost of the resource plan is allocated as follows: The amount allocated to January 5 is the ratio of 100 million events to 1 billion events multiplied by ￥ 120,000, which is ￥ 12,000. The amount allocated to January 30 is the ratio of 200 million events to 1 billion events multiplied by ￥ 120,000, which is ￥ 24,000. The amount allocated to May 20 is the same as that to January 30. The amount allocated to December 31 is the value left of the resource plan, which is the total cost minus the amounts allocated (￥ 120,000 - ￥ 12,000 - ￥ 24,000 - ￥ 24,000 = ￥ 60,000). The fee allocation of reserved EBS capacity plans is similar to that of resource plans with fixed capacity for the specified period of validity and is based on actual usage, which is not repeated here.
Allocation of postpaid fees	Suitable for the fee allocation of resources that adopt the pay-as-you-go billing method. After bill details are generated, the corresponding fee allocation data is generated once and for all. Example: pay-as-you-go ECS instances and pay-as-you-go EBS instances.	Once and for all allocation. After bill details are generated, the fee is allocated at a certain point in time once and for all. The allocated amount is equal to the fee of the bill.	Example: A customer purchases a pay-as-you-go ECS instance and the settlement period in the bill details is from 12:00:00 to 13:00:00, January 1, 2023. The bill order number is Bill001 and the pre-tax amount is ￥ 2. This bill is allocated once and for all, namely, this bill corresponds to one cost allocation record and the allocated amount is equal to the fee of the bill. Daily settlements and monthly settlements are allocated in the same way and is not repeated here.

Last updated: 2025.07.11 20:20:27