This transaction is made in the County of. ,. 1. Enter the seller's name and address.Learn about bill of sale laws and requirements for the state of Texas. Get templates for buying and selling high-value items like cars, boats, and firearms. In the State of Texas when you sell or transfer a vehicle, you should complete also the optional Bill of Sale form for your safety. For a free version of Acrobat Reader, please click on this logo. Complete list of Texas Comptroller Property Tax Forms and Applications click here. Provide the following information about each motor vehicle sale during the reporting month. Continue on additional sheets if necessary. For information to process necessary transactions while we are closed, click on the COVID-19 automobile and property tax pages in the left navigation bar.