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. Get Illinois bill of sale forms and learn how to transfer ownership of vehicles, boats, firearms, and other personal property from one party to another.The Illinois bill of sale form approves the exchange of a financial consideration for an item of property into a text register. Six states actually require that a bill of sale be notarized before it can be used to transfer the title of a vehicle. Forms on this website are PDFs with fillable fields. Forms should be downloaded to your computer before filling in the fields. Secure your transaction with our notarized bill of sale template. Your state's motor vehicle department website might have a bill of sale form you can download and fill in. Does a vehicle bill of sale have to be notarized in Illinois?