Clearly print or type all information, except signatures. The proof of sale for a vehicle from a dealer is the Retail Certificate of Sale (MV-50) ("Dealer's Bill of Sale").Protect your interests when buying or selling a vehicle in New York. Save time and stress with our vehicle bill of sale template. Learn about New York bills of sale for vehicles, boats, firearms, and more. Get answers to frequently asked questions and download the templates you need. A detailed description of the process of writing a bill of sale when transferring ownership of a car to a buyer. Use our Registration Required Documents Wizard to determine the documentation and forms required for your registration. This document details the sale of a motor vehicle from a seller to a buyer. It specifies the vehicle details like make, model, year, VIN, and mileage.