Bill of Sale ; Library File Link. Title Transfer Bill of Sale.Library File Link. 38-1306. Purpose. The motor vehicle seller must insert the sales price, nonresident state and Arizona county tax rates and complete all mathematical calculations. MV-912: Vehicle Bill of Sale (PDF). English. Use this form to show proof of a vehicle ownership transfer through a private sale. Download. Complete and sign the reverse side of the certificate of title and give it to the new owner along with a bill of sale (Form H-31). All forms are fillable. You can fill it out in Reader and print it from there.