What information do I need to complete a bill of sale? The bill of sale must show the purchase price and the amount of out-of-state sales tax paid to the dealer.This form below is designed for use on upon the sale of a motor vehicle or automobile. Such a bill of sale is needed to confirm a party's ownership in the car. I will have the check we spoke of earlier for the payment to Deere and Company for the truck at the Landfill. Explore the ins and outs of Bills of Sale in our comprehensive guide, ensuring confident and secure buying and selling transactions.