How long does a designated agent have to mail in the paperwork when you buy a car? Sean January 31, 2018 16:43 Updated Follow Designated agents should forward the completed application packet to the department within 10 calendar days. Related articles How do I check the status of my title application? How long does it take to receive an Alabama title? What documents will I need to make application for Alabama certificate of title? Where do I apply for an Alabama certificate of title? How do I apply for a replacement title? Comments 0 comments Article is closed for comments.