A renewal date and an expiration date can refer to different events. A program may have a cycle end date, a date by which an application should be filed, a grace-period deadline, and a later point at which the credential becomes inactive or revoked.
Record every date the authority uses
Instead of saving a single “renewal date,” record labels exactly as the authority gives them: cycle end, renewal/application due date, expiration, grace-period end, and reinstatement deadline if applicable.
Why the distinction changes planning
If the credential allows a grace period, the fact that the credential has not yet been revoked does not necessarily mean you avoided a late fee or met the normal renewal deadline.
A good personal target
Set a personal finish date before the earliest meaningful official deadline. That leaves time for rejected credits, reporting problems, payment failures, or missing documentation.