Keep a written record that includes the name and address of the seller, date of sale and vehicle information, including the VIN. Instructions. This form must be submitted with the Rebuilt Vehicle Statement (Form VTR-61) when submitting a new application.The Texas bill of sale form verifies the elemental facts of the sale of personal property in exchange for a predetermined compensatory amount. This transaction is made in the County of. ,. Though standard form bill of sales are available online and from your local county tax collector's office, it's also perfectly acceptable to write your own. Send your renewal form and a photocopy of proof of insurance to: Bexar County Tax Assessor-Collector Office P. O. Box 839950. San Antonio, TX 78283-3950.