Instructions. The new owner's social security number, taxpayer identification number (TIN), or federal employer identification number (EIN) is required. Use the Sales Tax Paid in Another State {Sales Tax Form} (PDF) (DTF-804) form to claim credit for the state and local sales taxes you paid in the other state.A motor vehicle bill of sale is between a buyer and a seller of a car, truck, or motorcycle. It is signed as the last step in the sales process. Download a motor vehicle bill of sale to transfer ownership and use it to register a car at your state's DMV. To. Signature of Seller. Document the sale of a car. Vehicle forms: Application for Texas Title (130-U), Application for Motor Vehicle Title, Service and Runner License. Next, provide the names and addresses of both the seller and buyer. Submit a Vehicle Transfer Notification.