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