Forms are available online at dol.wa. Gov or at any vehicle licensing office.Access bill of sale form templates and learn how to transfer ownership of vehicles, boats, firearms, and other high-value personal items in Washington. Download the Washington Bill of Sale form to securely document the transfer of property and ensure a smooth, legally compliant transaction. What forms must I fill out? A bill of sale in Washington does not require notarization if you plan to register your vehicle or vessel in person. Does a bill of sale have to be notarized in Washington? Include spaces for both parties to sign and date the document.