Billing & Budgets





The monthly invoices are sent to the account's root user and the alternate billing contact.


AWS Budgets


Set custom budgets that alert you when you exceed your budgeted thresholds.

Your first two action-enabled budgets are free
(regardless of the number of actions you configure per budget) per month.

Afterwards each subsequent action-enabled budget will incur a $0.10 daily cost.

* Daily budgets do not support enabling forecasted alerts

AWS Budgets Reports

Each report delivered will incur a cost of $0.01.

It allow you to monitor the performance of your budget portfolio on
a daily, weekly, or monthly basis by receiving an emailed report.

Cost Explorer API

Each request will incur a cost of $0.01.

Daily Budgets

Each day, AWS Budgets will evaluate yesterday’s cost or usage (the last full day of cloud spend and usage)
against the budgeted amount and send alerts if any thresholds have been exceeded.
In other words, today’s alerts depend on yesterday’s cost and usage.

If you receive discounts, we encourage you to use Show net unblended costs when forecasting your monthly costs to include discounts.
Unblended costs don't include discounts.


Budget scoping


Any refunds that you received.


Any AWS credits that are applied to your account.

Upfront reservation fees

Any upfront fees that are charged to your account. When you purchase an All Upfront or Partial Upfront Reserved Instance from AWS, you pay an upfront fee in exchange for a lower rate for using the instance.
Recurring reservation charges

Any recurring charges to your account. When you purchase a Partial Upfront or No Upfront Reserved Instance from AWS, you pay a recurring charge in exchange for a lower rate for using the instance.


Any taxes that are associated with the charges or fees in your budget.

Use blended costs

The cost of the instance hours that you used. A blended rate doesn't include either the RI upfront costs or the RI discounted hourly rate.


Any enterprise discount such as RI volume discounts. Discount line items don't contain tags.



  • Savings Plans
  • EC2 RIs(Reserved Instances)


Savings Plans


Compute Savings Plans

* regardless of region, instance family, size, OS, tenancy
* Apply to EC2 Fargate or Lambda usage

EC2 Instance Savings Plans

 * A given EC2 instance family(t3, m6?) in a chosen region
    (regardless of size, OS or tenancy)

價錢比較 t3 # All Upfront

33%       <- Compute Savings Plans
41%       <- EC2 Instance Savings Plans


EC2 RIs(Reserved Instances)


EC2 RIs provide a discounted hourly rate

AWS Billing automatically applies your RI’s discounted rate when attributes of EC2 instance usage match attributes of an active RI.

Can apply to usage across all Availability Zones in an AWS region


 * Change Availability Zone, instance size (for Linux OS), networking type
    (Using ModifyReservedInstances API and console)


 * Change instance families, operating system, tenancy, and payment option

RI Marketplace

Reserved Instance Marketplace allows other AWS customers to list their Standard RIs for sale.

Third-party Standard RIs are no different from the Standard Reserved Instances purchased directly from AWS

except they are often listed at lower prices and shorter terms.







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