A completed Application for Texas Title and or Registration (Form 130-U); Applicable fees; Evidence of ownership, as defined in the table below. A New York Trailer Bill of Sale helps streamline the registration process and proves the transfer of ownership if a dispute arises.1. Enter the location of the sale. The form consists of the significant vehicle, buyer, seller, and sale data, along with affirming signatures from both parties. Obtain the Form: Get the Trailer Bill of Sale form from your local DMV or relevant website.