A Utah motor vehicle bill of sale, known as Form TC-843, is an official document that provides proof that a vehicle has been sold in the State of Utah. Use a Utahspecific Bill of Sale form.Include all collected information methodically. Certificate of Title – The seller must provide you either the original certificate of title or a completed Form TC-123, Application for Duplicate Utah Title. 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. Used vehicles are sold as accepted and are not guaranteed. The license plate entered above is: □ included with the sale of the vehicle. Motor Vehicle Bill of Sale Also called "Form TC843," this bill of sale documents the sale of motor vehicles in Utah. You will need to complete Form TC-656, Application for Utah Title with all the appropriate changes reflected.