How do Amazon EC2 Reserved Instances that are size flexible apply to my AWS bill?
I want to know how my size flexible Amazon Elastic Compute Cloud (Amazon EC2) Reserved Instances (RIs) apply to my AWS bill.
Resolution
RIs apply automatically to your billing. You can't choose which specific instances receive the benefit of your RIs.
To check if your RI is size flexible, see How can I find out if my Amazon EC2 Reserved Instance provides Regional benefits or size flexibility?
Size flexible RIs apply to any usage in a particular instance family. Here are a few examples of how that can work in practice:
- Your RI applies to any instance in its family of the same size or smaller. For example, if you purchase an RI for an m3.large instance, the RI also applies to m3.medium instances.
- Multiple smaller RIs combine to apply to larger instances. For example, if you purchase two RIs for two m3.medium instances, these RIs also apply to an m3.large instance.
For more examples, see How Reserved Instance discounts are applied.
If you're in an organization with multiple accounts under a consolidated bill, additional considerations can apply. For more information, see How is the pricing benefit of a Reserved Instance applied across an organization's consolidated bill?
Related information
- Tags
- AWS Billing
- Language
- English
When you choose EC2 Reserved Instances u get discount which bring size flexibility and that gives you a discount for different instance sizes in the same family and region. AWS applies the discount to your bill automatically. For example, if you reserve a t3.large, the discount can also apply to two t3.medium or four t3.small instances.
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