Louisiana § RS 13:4231 - Res judicata

Full text of Louisiana Louisiana Civil Code § RS 13:4231 — Res judicata, with citation guidance and answers to common questions.

§ RS 13:4231. Res judicata

Except as otherwise provided by law, a valid and final judgment is conclusive between the same parties, except on appeal or other direct review, to the following extent:

(1)  If the judgment is in favor of the plaintiff, all causes of action existing at the time of final judgment arising out of the transaction or occurrence that is the subject matter of the litigation are extinguished and merged in the judgment.  

(2)  If the judgment is in favor of the defendant, all causes of action existing at the time of final judgment arising out of the transaction or occurrence that is the subject matter of the litigation are extinguished and the judgment bars a subsequent action on those causes of action.  

(3)  A judgment in favor of either the plaintiff or the defendant is conclusive, in any subsequent action between them, with respect to any issue actually litigated and determined if its determination was essential to that judgment.

Acts 1990, No. 521, §1, eff. Jan. 1, 1991.  

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

Frequently Asked Questions About Louisiana § RS 13:4231

What does Louisiana Civil Code § RS 13:4231 cover?

Section RS 13:4231 ("Res judicata") 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 13:4231?

A common citation format is "Louisiana Civil Code § RS 13:4231" (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 13:4231 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.