Washington Bill of Sale
Does Washington Require a Notarized Bill of Sale?
Notarization Requirement
No, Not Required
No notarization needed for an in-person bill of sale transaction. Mailed-in title applications (Form TD-420-001) do require notarization. Sellers must file a Report of Sale within 5 days.
Notarized bill of sale vs. notarized title
A lot of the confusion around state notary rules comes from mixing up two different documents: the bill of sale itself, and the signature on the certificate-of-title assignment. Some states require one but not the other. The requirement above is specific to the bill of sale — always double-check which document a notary requirement actually applies to before you sign.
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Other States
Checking a Different State?
Requirements shown reflect general state law and official state agency guidance as of publication and are subject to change — some counties or municipalities impose additional requirements beyond state law. Confirm current requirements for your specific sale before signing.