Why am I being charged for customer master keys (CMKs)?

Last updated: 2019-09-03

I have a charge for customer master keys (CMKs) on my Amazon Web Services (AWS) bill. What are these charges for?


Customer master keys (CMKs) are used with the AWS Key Management Service (AWS KMS). You are billed for all active or disabled CMKs on your account.

To see a list of the CMKs on your account, choose Customer managed keys in the AWS KMS console. To stop the charges for the CMK, delete the CMK.

Warning: Any services that you configured that use the CMK as part of their function will be affected.

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