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 long does it take to receive an Alabama title? How do I check the status of my title application? 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.