Originally Posted by
slivrflyr
If you submit for renewal before expiration but not early enough then they automatically give a grace period while your app is pending. At least this was the case pre covid. Thus you can squeeze out an extra year because the new card most likely gets produced after your bday, making the next expiration be 5y after the *next* bday
If you renew before expiration date, your new expiration date is five years from expiration date.
If you renew after expiration date, then your new expiration date is five years from your next birth date. You run the risk of not having NEXUS/Global Entry while your renewal application is pending. If an interview is required, then that is a very long delay since no NEXUS interview is available for the foreseeable future.