An Illinois motor vehicle bill of sale documents the purchase and sale of a motor vehicle between a private seller and buyer in the State of Illinois. Illinois bill of sale forms are documents that provide information about the sale, purchase, or trade of property.Motor Vehicle (DMV) Bill of Sale Form Affirms the information contained in a transaction of a vehicle for a payment amount. Motor Vehicle Bill of Sale Drafted upon the sale of a used vehicle to provide evidence of the transfer of ownership. Download: PDF, Word (. Use our Illinois bill of sale forms to legally buy or sell personal property in the state of Illinois, including a car, firearm, or trailer. Easily create a clear Illinois bill of sale with our customizable template. Save time and ensure a smooth transfer of ownership. Basic bill of sale form in Illinois to be used as general BOS document and customize the sale contract as per your transactions and requirement.