Louisiana is the only U.S. state whose private law descends from Napoleonic law rather than English common law, and in Louisiana that inheritance runs through the Louisiana Civil Code, a written statute the legislature adopted in 1808 and has kept in force ever since. The practical result is that a written code, not a stack of judicial opinions, controls how you own property with a spouse, how you leave assets to your children, when a contract is binding, and how long you have to sue after an injury. If you are moving to Louisiana, buying property there, marrying a Louisiana resident, or planning an estate under Louisiana law, the differences from other states are real and worth knowing before you sign anything.
Where Louisiana’s Civil Code Came From
When the Louisiana territorial legislature enacted the Digest of 1808, it produced the first comprehensive civil code in North American history. The drafters drew heavily from the French Code Civil of 1804, the code Napoleon put his name to, but they also pulled from Spanish sources including Las Siete Partidas and from Roman-law scholars.1Law Library of Louisiana. History of the Codes of Louisiana – Civil Code When Louisiana became a state in 1812, it kept the code, and successive revisions have modernized the language without abandoning the civil law structure.
Louisiana today is what scholars call a mixed jurisdiction. The Civil Code governs the core of private law: persons, property, obligations, and successions. Federal law, state constitutional law, criminal statutes, and administrative rules operate on top of it, and Louisiana has adopted common law frameworks in a few areas, notably commercial law under the Uniform Commercial Code. But for the everyday questions most people bring to a lawyer, the code is the authority.
Statutes Come First, Not Court Decisions
Article 1 of the Civil Code says the only sources of law are legislation and custom.2Justia. Louisiana Civil Code Art. 1 – Sources of Law That single sentence separates Louisiana from every other state, where judicial opinions independently create binding rules. In Louisiana, a statute passed by the legislature always outranks a court’s interpretation of it.
When a statute is clear and applying it does not produce an absurd result, judges must apply the text as written and cannot go looking for legislative intent elsewhere.3FindLaw. Louisiana Civil Code Art. 9 – Clear and Unambiguous Law When neither statute nor custom addresses a situation at all, the court decides based on equity, drawing on justice, reason, and prevailing usages.4FindLaw. Louisiana Civil Code Art. 4 – Absence of Legislation or Custom Legislation first, custom second, equity only when nothing else fits.
Prior decisions still carry weight, but through a softer doctrine called jurisprudence constante. A long, consistent line of rulings interpreting a statute is persuasive, but no single appellate opinion locks lower courts in the way binding precedent does in common law states. In practice Louisiana courts give past decisions substantial weight, and the distinction shows up more in how lawyers frame arguments than in dramatic differences in outcomes.
Property Rights Unique to Louisiana
Louisiana property law uses categories with Roman and French roots that have no direct equivalent in common law states. The one you are most likely to encounter is usufruct: a real right allowing someone to use another person’s property and collect its income or produce for a limited time.5Justia. Louisiana Civil Code Art. 535 – Usufruct The features of the right shift depending on whether the property is consumable, like money or crops, or nonconsumable, like a house or a car.
The person holding title but blocked from using the property during the usufruct is the naked owner. This arrangement is everywhere in Louisiana estate planning. A typical setup: a surviving spouse receives a usufruct over the family home for life, letting them live there, while the children hold naked ownership and take full use when the usufruct ends.6Louisiana State Legislature. Louisiana Civil Code Art. 1499 – Usufruct to Surviving Spouse
A narrower cousin is habitation, a right to dwell in someone else’s house. Habitation cannot be transferred to another person and terminates when the holder dies unless a shorter period was set.7Louisiana State Legislature. Louisiana Civil Code Art. 630 – Habitation8Justia. Louisiana Civil Code Art. 638 – Duration of Habitation It is more restrictive than a lease and more personal in nature.
Community Property in Marriage
Louisiana is a community property state. Unless spouses sign a prenuptial agreement selecting a different regime, most property acquired during the marriage belongs to both of them equally, regardless of whose name is on the title. The controlling question is where the money came from, not how an asset is labeled.
Community property includes assets acquired through either spouse’s work, skill, or effort during the marriage, property bought with community funds, items donated to both spouses jointly, and income generated by community assets.9Louisiana State Legislature. Louisiana Civil Code Art. 2338 – Community Property
Separate property stays with the owner in a divorce. It covers property owned before the marriage, assets received by inheritance or individual gift, and things purchased entirely with separate funds.10Louisiana State Legislature. Louisiana Civil Code Art. 2341 – Separate Property The hard cases involve assets bought with a mix of community and separate money. If the community contribution is minor compared to the separate funds, the asset stays separate; otherwise it becomes community property. Sorting those mixed assets produces some of the most heavily litigated fights in Louisiana divorces.
Inheritance and Forced Heirship
Louisiana calls the process of settling a deceased person’s estate a succession, and the substantive rules differ sharply from those in other states. The most surprising to newcomers is forced heirship, imported directly from French civil law.
Forced heirs are children of the deceased who are 23 or younger at the time of death, or children of any age permanently unable to care for themselves or manage their estates because of a mental or physical condition.11Justia. Louisiana Civil Code Art. 1493 – Forced Heirs Those heirs cannot be entirely written out of a will. The code reserves a forced portion for them: one-quarter of the estate if there is a single forced heir, or one-half if there are two or more.12Louisiana State Legislature. Louisiana Civil Code Art. 1495 Anything beyond the forced portion is the disposable portion, which the deceased can leave to anyone.
When a will tries to give away more than the disposable portion, forced heirs can go to court and have the excess donations reduced. This blindsides people who move to Louisiana from states where a parent can freely disinherit adult children. Adult children who are healthy and over 23 are not forced heirs, so the rule is narrower than it first sounds, but for families with a minor child or a disabled child it changes what a will can actually do.
Contracts and the Idea of Cause
Common law requires “consideration” to make a contract enforceable: each side must exchange something of value. Louisiana instead uses “cause,” which the code defines as the reason a party binds themselves to an obligation.13Louisiana State Legislature. Louisiana Civil Code Art. 1967 – Cause Defined
The practical difference cuts two ways. A promise can be enforceable in Louisiana without an exchange of money or goods, as long as the promisor knew or should have known the other party would reasonably rely on the promise to their detriment. On the other side, an obligation without a lawful cause is void.14Justia. Louisiana Civil Code Art. 1966 – No Obligation Without Cause If the reason behind a contract is illegal or against public policy, the entire agreement collapses. Louisiana contracts otherwise form the way most people expect: through consent, expressed by offer and acceptance in speech, writing, or conduct, and requiring that both parties have legal capacity and that the contract has a lawful object.
Injury Claims and Shared Fault
The Civil Code’s injury rule is short: anyone whose fault causes damage to another is obligated to repair it.15Louisiana State Legislature. Louisiana Civil Code Art. 2315 – Liability for Acts Causing Damages Louisiana labels these “delictual obligations” rather than torts, but the practical effect is similar.
When the injured person shares blame, Louisiana uses a comparative fault system. A court assigns a percentage of fault to everyone who contributed to the harm, including the injured party, and reduces the damages proportionally.16FindLaw. Louisiana Civil Code Art. 2323 – Comparative Fault If you are 30 percent at fault for an accident that caused $100,000 in damages, you recover $70,000. Louisiana has no cutoff threshold; a plaintiff who is 99 percent at fault can still recover the remaining 1 percent. The one exception is that if the other party acted intentionally, your own negligence does not reduce your damages at all.
Prescription and Peremption Deadlines
Louisiana calls the deadline for filing a lawsuit “prescription” rather than a statute of limitations, and the label matters. The default prescription for most personal actions is ten years.17Louisiana State Legislature. Louisiana Civil Code Art. 3499 – Personal Action
Injury claims run on a much shorter clock. Effective July 1, 2024, Louisiana extended the prescriptive period for delictual actions from one year to two years, running from the date the injury or damage occurs.18Louisiana State Legislature. Louisiana Civil Code Art. 3493.1 The change, enacted through Act 423 of 2024, applies only to claims arising on or after that date.19Louisiana State Legislature. Act No. 423 of 2024 Anyone injured before July 1, 2024, is still bound by the old one-year deadline. Miss either window and the claim is gone.
Louisiana also recognizes peremption, which is stricter than prescription. Prescription can be interrupted, for example by filing suit or by the debtor acknowledging the debt, and it can be suspended in some situations, effectively pausing the clock. Peremption cannot be interrupted or suspended for any reason. When a peremptive period expires, the underlying right is destroyed, not just the remedy. Figuring out which type of deadline applies to a specific claim is one of the first questions a Louisiana lawyer works through, and getting it wrong is one of the fastest ways to lose a case before it starts.