California Bill of Sale Forms (3). A California bill of sale is an official document used to record the sale of personal property between a buyer and seller.Chapter 1: General Registration Information. The California bill of sale form helps individuals document data on a transaction involving the sale, trade, or gift of personal property. Learn about bills of sale in California for animals, vehicles, firearms, and more. Explore our California bill of sale templates and learn how to create your legally binding document that protects your interests. A fully customizable California bill of sale template. Whether you're buying or selling a vehicle, boat, or personal property, our template makes it easy. Fill in the details. Close. Find sample bill of sale for used car in California.