I understand that this vehicle is sold in "as is, where is" condition, with no guarantees or warranties. Buyer's signature. Date.Current Utah State Tax Commission motor vehicle forms and publications. Filling Out the Form. Use a Utah-specific Bill of Sale form. Create a Utah bill of sale form to document the transfer of ownership of a vehicle or another piece of personal property. "Streamline your personal property transactions with our General Bill of Sale Form. Motor Vehicle Bill of Sale Also called "Form TC843," this bill of sale documents the sale of motor vehicles in Utah. Use Utah bills of sale to document the transfer of ownership of a car, boat, firearm, or other personal property from a seller to a buyer. Motor Vehicle Bill of Sale (Form TC-843)– Can be used to prove the sale and purchase of either a motorcycle or automobile in the state of Utah.