2025 Session Last amended: 1992 session

§ 336.3-403 — Unauthorized Signature

Plain-Language Summary

An unauthorized signature on an instrument does not bind the person whose name was used, but does bind the unauthorized signer. The signature can be ratified (approved after the fact) by the named person.

Practical Notes
If someone forges your signature on a check, you are not liable, but the forger is. You can also choose to approve the signature after the fact.