When a Louisiana resident dies without a valid will, their estate passes to their legal heirs under the default rules of the Louisiana Civil Code — but those heirs still have to prove they are entitled to inherit before a court will issue a judgment of possession. In a testate succession, the will does a lot of that work. In an intestate succession, the family has to establish who the heirs are, and that proof is part of every Louisiana intestate succession filing.
This page explains who counts as an heir under Louisiana’s intestate rules, how those rules actually play out in common family situations, and what evidence a court expects before recognizing someone as an heir. If you’re opening a succession for a loved one who left no will, this is the substance that your attorney will be working through, and understanding it up front makes the process smoother.
What “intestate” means and why it matters
Under Louisiana law, a succession is intestate whenever the decedent left no valid will, or when the will they left is legally ineffective (for example, because it fails formalities required by Louisiana Civil Code article 1574 or article 1577). When that happens, the Civil Code’s default inheritance rules take over automatically. La. C.C. art. 880 establishes the baseline: intestate succession is a succession that results from the operation of law rather than from a testament.
The mechanics are straightforward on paper: the Civil Code classifies potential heirs by their relationship to the decedent, and the first class with any living members takes the estate. Nobody in a later class receives anything. But the real-world execution requires proving:
- That no valid will exists (we’ll return to this)
- Who all the potential heirs are, alive at the moment of the decedent’s death
- What each heir’s legal share is under the Civil Code
- That all heirs have been given notice of the succession proceeding
Each of these steps requires specific documentary evidence. A court won’t just take the family’s word for who inherits.
Proving there is no will
Before a court will apply intestate rules, you have to satisfy it that the decedent did not leave a valid testament. In most families, this is obvious — the decedent was known to have no estate plan. But courts still require affirmative evidence:
- A search of the decedent’s home, safe deposit box, and personal papers
- Inquiry with the decedent’s known attorneys
- Check of the parish will registry (in parishes that maintain one)
- A sworn statement from the petitioner that no will has been found after diligent search
If a will later surfaces after the intestate succession has been completed, the succession can be reopened to give the will effect. That’s one reason Louisiana courts require careful documentation at the start.
The classes of intestate heirs, in detail
Louisiana Civil Code articles 888 through 902 set up the classes of heirs and the order in which they inherit. Here are the classes in practical detail, with the specific rules that apply within each.
Class 1: Descendants (La. C.C. art. 888)
Children, grandchildren, great-grandchildren, and further lineal descendants inherit the decedent’s entire separate property, and the decedent’s half of community property subject to the surviving spouse’s usufruct. If all of the decedent’s children are alive, they inherit in equal shares (per capita). If one or more children has predeceased the decedent but left descendants of their own, those descendants inherit by representation (La. C.C. art. 881) — which means they collectively take the share their parent would have received, divided among themselves.
Representation runs down through the bloodline indefinitely. A great-grandchild can inherit by representation if their parent (the decedent’s grandchild) and their grandparent (the decedent’s child) both predeceased the decedent.
Who counts as a “descendant”?
- Biological children of the decedent — always, once parentage is legally established
- Legally adopted children — same inheritance rights as biological children (La. Ch.C. art. 1240). Adoption severs the child’s legal right to inherit from the biological parents and establishes inheritance rights in the adoptive family.
- Non-marital children (children born outside of marriage) — inherit from a parent once parentage is legally established. For a child to inherit from a father who did not marry the mother or formally acknowledge the child, a timely filiation action may be required under La. C.C. art. 197. This is a common source of contested inheritance issues.
- Stepchildren who were not legally adopted — do not inherit as descendants, regardless of how the family treated them in life. If the decedent wanted to leave something to a stepchild, that needed to be done by will or trust.
Class 2: Siblings and parents (La. C.C. arts. 891, 892)
If the decedent has no descendants, the next class is siblings and parents. The interaction between these two groups is unusual: siblings take ownership of the decedent’s separate property, and any surviving parent takes a usufruct (the right to use and enjoy) over that separate property for the rest of the parent’s life. At the parent’s death, the usufruct terminates and the siblings take full ownership.
If both parents survive but there are no siblings, the parents inherit the separate property in full ownership (in equal shares if both parents survive, otherwise to the sole surviving parent). If one or both parents survive and there are siblings, the parents get the usufruct and the siblings take the naked ownership.
Half-siblings (La. C.C. art. 893): This is one of Louisiana’s most counterintuitive rules. When the decedent has half-siblings as well as whole-siblings, the separate property is divided by “lines” — the paternal line and the maternal line. Half-siblings inherit only from the parent they share with the decedent. So:
- Property that came to the decedent from their father’s side of the family passes only to full-bloods and paternal half-siblings.
- Property that came from the mother’s side passes only to full-bloods and maternal half-siblings.
- Property the decedent acquired on their own is typically split between the two lines, with full-bloods inheriting from both.
This “source of the property” question can become genuinely difficult when the decedent acquired property through a mix of inheritance and personal acquisition over a lifetime.
Class 3: Ascendants (grandparents and beyond)
If there are no descendants, no siblings, and no parents, the estate passes to more distant ascendants. This is rare in practice. Grandparents inherit before great-grandparents, and so on, with representation within each line.
Class 4: More distant collateral relatives
Uncles, aunts, cousins, and other collateral relatives inherit if there are no closer heirs. The Civil Code recognizes collaterals out to a significant degree of relationship. Establishing the right to inherit as a distant cousin can require substantial genealogical evidence.
Class 5: The surviving spouse (La. C.C. art. 894)
Here’s where Louisiana’s rules differ sharply from most states. The surviving spouse is NOT in the first class of heirs. Under Louisiana’s intestate rules:
- Community property: goes to the surviving spouse in full ownership if the decedent has no descendants, or to the descendants subject to a spousal usufruct if descendants exist (La. C.C. arts. 889, 890).
- Separate property: goes to the blood relatives first (descendants → siblings/parents → ascendants → collaterals). Only if all of those categories are empty does the surviving spouse inherit separate property.
This means a childless widow whose deceased husband owned substantial separate property (an inheritance from his parents, say, or a business he started before the marriage) may see that property pass to her husband’s siblings rather than to her. It’s one of the most common reasons estate planning matters even in “simple” families.
Class 6: The State of Louisiana (La. C.C. art. 902)
If there are no heirs in any category at all, the estate escheats to the State. This is genuinely rare. Louisiana courts make significant effort to find living relatives before allowing escheat.
Representation: how predeceased relatives’ shares flow
The doctrine of representation (La. C.C. art. 881) is one of the most practically important rules in intestate succession. It ensures that when a relative who would have inherited predeceases the decedent, their descendants step into their place.
Representation applies:
- Among descendants (unlimited — representation flows down indefinitely)
- Among collaterals, but only among the descendants of siblings (not to more distant collaterals like cousins’ descendants)
Representation does NOT apply to ascendants. If the decedent’s only surviving heirs are grandparents, you don’t “represent” a deceased grandparent through a great-grandparent.
Examples that trip families up:
Example 1: Decedent had three children, one of whom predeceased him leaving two grandchildren. The two grandchildren collectively take their parent’s one-third share — so each gets 1/6 of the estate, not 1/3.
Example 2: Decedent had two siblings, both of whom predeceased her. Sibling A left one child; sibling B left three children. The estate divides 50/50 between sibling A’s line and sibling B’s line, so sibling A’s child gets 1/2 and each of sibling B’s children gets 1/6.
Example 3: Decedent had no descendants, parents, or siblings. Her only heirs are first cousins. Her closest cousin predeceased her, leaving a single child (a first cousin once removed). Representation does not apply here (it stops at siblings’ descendants), so the remaining living first cousins inherit in equal shares, and the first-cousin-once-removed takes nothing.
Proving heirship: the affidavit and the descriptive list
In a Louisiana intestate succession, heirs are established through several documents:
- Petition for Possession — identifies all heirs and requests that the court recognize them.
- Affidavit of Death and Heirship — a sworn statement, typically signed by two witnesses who knew the decedent, establishing the decedent’s family tree: who the decedent married (and when, and to whom), which children they had, and which relatives have predeceased them.
- Descriptive list — an inventory of assets and their values, signed under oath.
- Death certificates — for the decedent and for any predeceased relatives whose death affects the inheritance (for example, a predeceased child whose children are inheriting by representation).
- Birth and marriage certificates — used to establish family relationships when representation, adoption, or filiation questions arise.
The affidavit of heirship is the most important document for establishing who inherits. The witnesses must have personal knowledge of the decedent’s family. In contested cases, additional evidence (DNA tests, adoption decrees, court orders from other states) may be required.
Common disputes in intestate successions
Intestate successions produce more family disputes than testate ones because the default rules can’t account for individual circumstances. The most common disputes we see:
- Unacknowledged or non-marital children claiming inheritance rights, often requiring a filiation action (La. C.C. art. 197).
- Step-relatives who believed they were “family” learning they have no legal right to inherit because no adoption was ever done.
- Disputes over whether a sibling is a half-sibling or whole-sibling — especially relevant under La. C.C. art. 893’s source-of-property rules.
- Unknown heirs surfacing years after a succession was closed, requiring re-opening.
- Simultaneous death — when spouses die in the same accident, Louisiana’s simultaneous death statutes control (La. R.S. 9:111).
- Contested wills where one side argues the will should be recognized (making it testate) and the other argues it’s invalid (making it intestate). See our article on challenging validity of a last will and testament.
Edge cases: what happens when…
…the heirs can’t be located?
Louisiana law provides a procedure for succession when heirs are absent or their location is unknown. The court may appoint an attorney to represent absent heirs (at the estate’s expense). The estate can still be settled, with the absent heir’s share held in trust or otherwise preserved. If the absent heir is never located, their share eventually reverts to the next closest heirs.
…the decedent and an heir die close in time?
Louisiana follows simultaneous death principles (La. R.S. 9:111): if the order of death cannot be established by clear and convincing evidence, each decedent is treated as having predeceased the other for purposes of their respective estates. This can produce outcomes quite different from what the family expects.
…a paternal grandparent and a maternal grandparent both survive?
If ascendants are the class of heirs (no descendants, no siblings, no parents), the estate is divided equally between the two parental lines. A surviving paternal grandparent and a surviving maternal grandparent each take half. This is different from how descendants inherit per capita.
…an adopted child has already inherited from the biological family?
Louisiana’s adoption rules (La. Ch.C. art. 1240) generally terminate inheritance rights between the adopted child and biological parents once the adoption is final. Prior inheritances that already vested are not undone, but future rights (inheriting from a biological grandparent, for example) are cut off unless the adoption was by a stepparent who married the biological parent.
Frequently asked questions
What is an affidavit of heirship in Louisiana?
A sworn statement signed by two or more witnesses with personal knowledge of the decedent’s family that establishes who the heirs are. It’s used in both small successions and as supporting evidence in full judicial successions when no will exists.
Do I need to prove I’m an heir if everyone in the family agrees?
Yes. Family agreement is not sufficient for a Louisiana court to issue a judgment of possession. You need the documentary evidence (death certificates, birth certificates, marriage certificates, affidavits) regardless of whether the family is in agreement.
What happens if I find out later that I was an heir but didn’t know about the succession?
Louisiana allows successions to be reopened when new heirs are discovered or when assets were overlooked. A missed heir can typically assert their rights years after the original succession closed, though the practical difficulty of recovering property that has since been sold or distributed can be significant.
Can my spouse inherit my separate property if we have no children?
Only if the decedent has no surviving siblings, parents, ascendants, or close collaterals. Louisiana’s intestate rules prefer blood relatives over spouses for separate property. If you want your spouse to inherit your separate property, you need a will or trust.
What counts as “separate” versus “community” property?
Community property is generally what was acquired during the marriage other than by inheritance or donation (La. C.C. art. 2338). Separate property is what was owned before marriage or acquired during marriage by inheritance or donation to one spouse alone (La. C.C. art. 2341). The distinction matters hugely in intestate succession because the two types of property pass to different people.
How long after death do I need to open an intestate succession?
Louisiana does not have a strict deadline, but every year of delay makes it harder. Witnesses’ memories fade, additional relatives die, and evidentiary questions multiply. See our article on avoiding delays in a Louisiana succession.
Figuring out who inherits in an intestate estate is often straightforward for simple families and surprisingly complicated for families with blended relationships, out-of-state relatives, or gaps in family records. If you’re working through an intestate succession or need to establish heirship for a loved one’s estate, contact Scott Law Group – Estate Counsel or call us at (504) 264-1057. We help Louisiana families through this process every week, and we can usually identify the right path in a single consultation.
This article provides general information about Louisiana intestate succession law and is not legal advice. Every estate is fact-specific. Consult with a qualified Louisiana attorney before acting on any information in this article.