Clearly print or type all information, except signatures. What information do I need to complete a bill of sale?MV-912: Vehicle Bill of Sale (PDF). English. Use this form to show proof of a vehicle ownership transfer through a private sale. Download. 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. 1. Enter the date of the sale. We will be addressing how to fill out a bill of sale form for the sale of a car so let's get started with this guide to filling out a bill of sale form. A bill of sale is a legal document that outlines the purchase of property between a buyer and seller. It commonly includes both parties' information.