You can renew a driver license, permit or non-driver license early at a local license office before you leave the state or country. Service members and their dependents can also renew by mail, email or fax using the Department of Revenue mail-in driver license application. If you were discharged from active duty with an expired license, you have 90 days to establish residency or six months from your discharge date, whichever comes first, to renew without taking the full examination.
Visit a Missouri motor vehicle and driver license office before you leave for an early renewal, or submit the mail-in driver license application, Form 4317, to the Department of Revenue with the documents listed on the form.
Your current or expired license, your orders or discharge paperwork, and whatever supporting documents Form 4317 lists.