There is a specific form you need to complete and take with you to AAA or DMV. Its the form that allows gifts from a family where you can avoid sales tax.Complete the new owner information on the back of the certificate and sign it. Bill(s) of sale, if needed to establish a complete chain of ownership. A gifted car bill of sale is designed to provide information about the person who owns the car and the person it's being gifted to. A list of upcoming November and December events in Contra Costa County and around the San Francisco Bay Area. Donating your unwanted vehicle is an easy way to give back and receive a tax write-off. Exclusive Bay Area and San Francisco breaking news, sports, tech, and food and wine coverage, plus enhanced coverage of Giants, 49ers and Warriors.