I purchased an EC2 Reserved Instance, but I'm not getting a discount. Why?

For a Reserved Instance's discount to apply, the following things must be true:

  • Your Reserved Instance must exactly match a running EC2 instance’s characteristics. A running instance must exactly match the type, Availability Zone, platform, and tenancy of your reservation.
  • The up-front cost for your Reserved Instance must have been processed successfully. You can check the status of your payments on the Payment History page of the Billing and Cost Management console. If you want to retry a failed Reserved Instance payment, contact AWS Support. Failed Reserved Instance purchases from previous billing periods can’t be retried.
  • Your Reserved Instance must still be active. You choose a one-year or three-year term for your reservation when you purchase it. After the term expires, your instance is billed at On-Demand rates. You can renew your reservation by purchasing another Reserved Instance with the same specifications.
  • You must have one Reserved Instance for each instance that you want to receive a discount. Each Reserved Instance applies to only one running EC2 instance. You can run additional instances that match a Reserved Instance, but the reservation only provides the discount for one running instance at a time.

Did this page help you? Yes | No

Back to the AWS Support Knowledge Center

Need help? Visit the AWS Support Center

Published: 2016-04-08

Updated: 2018-02-02