Go to Service Arizona, click on Sold Notice at the bottom and follow those steps. A bill of sale isn't generally required in Arizona, but it can be useful when buying a junk car without a title.Library File Link. 48-2004. Purpose. Seller Name (first, middle, last, suffix). An AZ DMV notarized bill of sale is a legally recognized document used in Arizona for vehicle transactions. It's essential for transferring ownership. AZ Auto will help you transfer a car title, replace a lost one or apply for one if you never had a vehicle title. View all of our Arizona title services. In AZ you don't need a bill of sale, and no-one cares for how much you sold or bought it for if you buy it from a private party. What Do I Need For a Car Title Transfer in AZ?