Registering a trailer in Illinois does not require an Illinois trailer bill of sale, but you should have one when you sell or buy a trailer. The Trailer is to be sold free and clear of any liens, encumbrances, or mortgages.An Illinois trailer bill of sale form distinguishes the buyer from the seller in a trade deal. 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. To transfer a trailer title, first confirm ownership, then complete the Illinois Title Application Form VSD190. Prepare a bill of sale for the buyer. Include the date of sale and the price paid.
