Louisiana § RS 10:3-403 - Unauthorized signature

Full text of Louisiana Louisiana Civil Code § RS 10:3-403 — Unauthorized signature, with citation guidance and answers to common questions.

§ RS 10:3-403. Unauthorized signature

(a)   Unless otherwise provided in this Chapter or Chapter 4, an unauthorized signature is ineffective except as the signature of the unauthorized signer in favor of a person who in good faith pays the instrument or takes it for value.  An unauthorized signature may be ratified for all purposes of this Chapter.  

(b)  If the signature of more than one person is required to constitute the authorized signature of an organization, the signature of the organization is unauthorized if one of the required signatures is lacking.  

(c)  The civil or criminal liability of a person who makes an unauthorized signature is not affected by any provision of this Chapter which makes the unauthorized signature effective for the purposes of this Chapter.  

Acts 1992, No. 1133, §3, eff. July 1, 1993; Acts 1993, No. 948, §10, eff. Jan. 1, 1994.  

Source: official Louisiana text · Last verified 2026-08-27

Frequently Asked Questions About Louisiana § RS 10:3-403

What does Louisiana Civil Code § RS 10:3-403 cover?

Section RS 10:3-403 ("Unauthorized signature") is part of the Louisiana Civil Code, the codified statutory law of Louisiana. It sets out the legal rule or procedure described in the text above. Statutes are amended regularly, so always verify against the official source.

How do I cite Louisiana § RS 10:3-403?

A common citation format is "Louisiana Civil Code § RS 10:3-403" (Louisiana). Legal writing may require the code abbreviation, section number, and year or edition. Match the style required by your court, professor, or publisher.

Is this the official text of Louisiana law?

No. This page is for research and education and may not include the most recent amendments. For official current law, check the Louisiana official source linked on this page or consult a licensed Louisiana attorney.

How does Louisiana § RS 10:3-403 apply to my situation?

Statutes are interpreted in context, and application depends on your specific facts. Only a licensed attorney in Louisiana can advise on how this section applies to you. Contact your state or local bar association for a referral.

Sources & Verification

Not legal advice. Verify against the official source and consult a licensed attorney in Louisiana.