To transfer a Texas titled vehicle, bring in or mail the following to our offices: 1. Get information about motor vehicle registration and title transactions.Tarrant County residents can renew vehicle registration. A bill of sale benefits both the seller of a vehicle and the buyer. I Drive Safely will help you understand the importance of a Texas bill of sale. County tax assessor-collector offices provide most vehicle title and registration services. Download. This video will show you how to fill out your Texas title, notice of vehicle transfer, and application for title. In the state of Texas, a bill of sale is not required for transferring the title.