https://stackoverflow.com/questions/59170391/s3-lifecycle-ex...
What I found out when I researched it is that there is a subtle difference between using lifecycles to move objects to other storage classes and for deleting objects: deletions are not transitions, they are expirations – and expirations are free. I submitted a clarification to the S3 documentation and now it says "You are not charged for expiration or the storage time associated with an object that has expired." (https://docs.aws.amazon.com/AmazonS3/latest/userguide/lifecy...)
If you have objects in IA or Glacier there is a minimum duration you're charged for, but there will be no extra charges for expiring these objects.
[0] https://aws.amazon.com/about-aws/whats-new/2021/09/amazon-s3...
"Minimum storage duration charge" along with "Minimum capacity charge per object" is a property of an S3 Storage Class, not a lifecycle policy. Therefore this cost needs to be considered before selecting a storage class.
The charges for deleting before the minimum storage duration are documented for each storage class at https://docs.aws.amazon.com/AmazonS3/latest/userguide/storag...
Refer to the "Performance across the S3 Storage Classes" table at https://aws.amazon.com/s3/storage-classes/
"If you create an S3 Lifecycle expiration rule that causes objects that have been in S3 Standard-IA or S3 One Zone-IA storage for less than 30 days to expire, you are charged for 30 days"
It goes on to say 90 days for Glacier and 180 days for Glacier Deep.
https://docs.aws.amazon.com/AmazonS3/latest/userguide/lifecy...