Louisiana law is different from other states because Louisiana is the only U.S. state whose legal system grew from French and Spanish civil law rather than English common law. That single fact ripples through nearly every area a person actually encounters: how you inherit property, how you sell a house, how long you have to sue someone, what a notary can do, and even what the courthouse calls the county you’re standing in. The other 49 states share a common structure inherited from England. Louisiana doesn’t.
Code Comes Before Case Law
In common law states, judges make binding law through their rulings. Under the doctrine of stare decisis, a past opinion can carry as much weight as a statute.
Louisiana works the other way around. Its private law is organized around the Louisiana Civil Code, first enacted in 1808 and modeled on French and Spanish traditions. The code is the primary source of rules governing relationships between private citizens, and a judge’s job is to apply its written articles to the facts.1Louisiana State Legislature. Louisiana Civil Code Art. 1757 – Sources of Obligations Prior decisions can guide interpretation, especially when courts have read an article the same way over time, but a single past ruling does not bind future courts. The code has the final word.
The practical takeaway: if you’re researching a Louisiana legal question, start with the code articles, not with case summaries.
Property Rules That Don’t Exist Elsewhere
Community Property, Code-Driven
Louisiana is one of a handful of community property states, but its version is more code-driven than most. Nearly all property acquired during a marriage through either spouse’s work belongs equally to both, no matter whose name is on the title.2Louisiana State Legislature. Louisiana Civil Code Art. 2338 – Community Property Gifts, inheritances, and anything owned before the marriage remain separate. When separate funds get mixed into community property, the code has detailed reimbursement rules that come into play in divorces and successions.3Justia. Louisiana Civil Code Art. 2367 – Use of Separate Property for the Benefit of Community Property
Usufruct
Usufruct has no exact common law equivalent, though it resembles a life estate. It splits ownership into two roles. The usufructuary can use the property and collect its income, such as rent. The naked owner holds title but cannot use or benefit from the property until the usufruct ends.
This shows up constantly in Louisiana estate planning. When a spouse dies without a will, the surviving spouse typically receives a usufruct over the deceased spouse’s share of community property, while the children become naked owners. The surviving spouse can keep living in the family home and collect any income it generates, but cannot sell it without the children’s agreement. When the usufruct terminates, the children take full control.
Lesion Beyond Moiety
Louisiana lets a seller of real estate undo a completed sale if the price was less than half the property’s fair market value, even if the seller agreed to the price voluntarily and signed a contract waiving the right to challenge it.4Louisiana State Legislature. Louisiana Civil Code Art. 2589 – Rescission for Lesion Beyond Moiety Only sellers of real property can use this remedy, and it doesn’t reach court-ordered sales like foreclosures. Still, the idea that a seller can rescind a completed transaction purely because the price was too low would strike most common law lawyers as extraordinary.
Forced Heirship
In most states, you can leave your estate to anyone you choose. In Louisiana, you can’t fully disinherit certain children.
Forced heirs include children who are 23 or younger at the parent’s death (anyone who has not yet turned 24), and children of any age who cannot care for themselves or manage their property because of a mental or physical condition.5Louisiana State Legislature. Louisiana Civil Code – Chapter 3, The Disposable Portion and Its Reduction in Case of Excess With one forced heir, you can freely dispose of three-quarters of your estate and one-quarter is reserved. With two or more forced heirs, they collectively receive half.6Justia. Louisiana Civil Code Art. 1495 – Amount of Forced Portion and Disposable Portion A will that ignores these rules can be partially overturned. Estate planning in Louisiana has to account for this in a way that isn’t necessary anywhere else.
Contracts Work Differently
Louisiana doesn’t organize its private law around “contracts.” It uses a broader framework called “obligations,” meaning any legal duty one person owes another. Contracts are one source of obligations, but obligations also arise directly from the law, such as the duty not to harm others or the duty to return money received by mistake.7Justia. Louisiana Civil Code Art. 1757 – Sources of Obligations
The requirements for a valid agreement also differ. Common law states require “consideration”: each side has to give something of value. Louisiana requires “cause,” defined as the reason a person binds themselves to an obligation.8Louisiana State Legislature. Louisiana Civil Code Art. 1966-1967 – Cause That difference affects which agreements courts will enforce. A promise to make a gift, for example, fits more naturally into Louisiana’s cause-based framework than into common law consideration.
Louisiana buyers also get a remedy built directly into the code. Under the doctrine of redhibition, every seller automatically warrants that what they sold is free from hidden defects. If the defect is serious enough that you wouldn’t have bought the item had you known, you can rescind the sale and get a full refund. If the defect merely reduces value, you’re entitled to a price reduction.9Louisiana State Legislature. Louisiana Civil Code Art. 2520 – Warranty Against Redhibitory Defects A seller who knew about the defect and concealed it may owe damages on top of the refund. This applies to everything from used cars to houses.
Deadlines: Prescription and Peremption
Every state imposes deadlines for filing lawsuits. Louisiana calls them “prescription” and adds a second, stricter concept called “peremption” with no real common law equivalent.
A prescriptive period works roughly like a statute of limitations. The standard deadline for personal injury claims is now two years, after a 2024 change extended what had been the shortest deadline in the country.10Louisiana State Legislature. Louisiana Civil Code Art. 3493.1 – Two-Year Prescription Prescription can be interrupted, which restarts the clock, by filing a lawsuit or by other actions the code specifies.11Louisiana State Legislature. Louisiana Civil Code – Chapter 2, Interruption and Suspension of Prescription
Peremption is harsher. A peremptive period cannot be interrupted, suspended, or renewed for any reason.12Louisiana State Legislature. Louisiana Civil Code Art. 3461 – Peremption When a peremptive deadline expires, the right to bring the claim ceases to exist. No disability, no fraud by the other side, no excusable delay saves it. Medical malpractice claims are subject to peremptive periods. Mistaking a peremptive deadline for a prescriptive one is how people lose cases they otherwise would have won.
Notaries With Real Legal Power
In most states, a notary public verifies your identity and watches you sign. In Louisiana, a notary is closer to a legal professional and can draft legal documents that carry special status under the law.
The key concept is the “authentic act.” Under the Civil Code, an authentic act is a document prepared and executed before a notary, signed in the presence of two witnesses, with all parties, both witnesses, and the notary signing.13Justia. Louisiana Civil Code Art. 1833 – Authentic Act Authentic acts carry a legal presumption of validity that ordinary signed documents don’t. Real estate transfers in Louisiana are typically done by authentic act rather than through the attorney-driven closing used in common law states.14Louisiana State Legislature. Louisiana Civil Code Art. 1839 – Transfer of Immovable Property
Because of these expanded powers, becoming a Louisiana notary requires passing a state exam given at least twice a year by the Secretary of State’s office. No law degree is required, but the exam covers substantive legal principles.15Louisiana Secretary of State. How to Become a Louisiana Notary Tasks that require an attorney in most states, such as drafting real estate sale documents, prenuptial agreements, and affidavits, can be handled by a qualified Louisiana notary.
Courthouse Vocabulary
Louisiana uses terms that don’t appear anywhere else in the American legal system. If you’re involved in a matter there, you need to know what they mean.
- Parish. Louisiana is divided into 64 parishes, which serve the same function as counties everywhere else. The term dates to the state’s Catholic colonial administration.16Louisiana.gov. Local Louisiana
- Succession. The process of settling a deceased person’s estate is called a succession, not probate.
- Petitioner. The person filing a civil lawsuit is typically called the petitioner and files a petition, rather than being called the plaintiff and filing a complaint.
- Police jury. In many parishes, the local governing body is called a police jury, functioning like a county commission.
- Mandate. What other states call a power of attorney, Louisiana calls a mandate. The person granting authority is the principal; the person receiving it is the mandatary, not the agent or attorney-in-fact.
These terms appear in official documents, court filings, and property records.
Jury Trials
Louisiana allowed juries to convict people of serious felonies without a unanimous vote for over a century. A 10-to-2 verdict was enough to send someone to prison. Only Oregon had a similar rule, and both states adopted these provisions with the explicit goal of diminishing the influence of Black jurors, a history the U.S. Supreme Court later acknowledged directly.17Supreme Court of the United States. Ramos v. Louisiana, No. 18-5924
Louisiana voters ended the practice in November 2018, approving a constitutional amendment that required unanimous jury verdicts for crimes committed on or after January 1, 2019.18Louisiana State Legislature. Senate Bill No. 243, 2018 Regular Session Two years later, the Supreme Court’s 2020 decision in Ramos v. Louisiana went further, holding that the Sixth Amendment requires unanimous verdicts in all state criminal trials, and that ruling reached convictions predating the 2018 amendment.17Supreme Court of the United States. Ramos v. Louisiana, No. 18-5924
Civil juries work differently too. You don’t automatically get one in a Louisiana civil case. A jury trial is unavailable when the claim is worth $10,000 or less, and whole categories of proceedings are excluded, including successions, divorces, custody disputes, and workers’ compensation.19Louisiana State Legislature. Louisiana Code of Civil Procedure Art. 1732 – Limitation Upon Jury Trials The $10,000 threshold replaced a $50,000 threshold in 2021. Cases filed in parish or city courts also have no right to a jury. These restrictions reflect the civil law preference for judge-decided disputes.