The direct answer: Under Louisiana law, forced heirship means certain descendants cannot be completely disinherited without a legally recognized just cause. Only two categories of descendants qualify as forced heirs: those who are 23 years old or younger at the time of the parent's death, and descendants of any age who are permanently incapable of caring for themselves or administering their own estates because of mental incapacity or physical infirmity, as set out in La. Civ. Code art. 1493. A forced heir is entitled to a minimum share of the estate called the legitime — one-fourth of the estate if there is one forced heir, or one-half if there are two or more, under La. Civ. Code art. 1495 — regardless of what a will says, unless the parent validly disinherited that heir for one of the specific causes the Civil Code recognizes. Every other descendant, and every other category of heir, can be freely included or excluded from a Louisiana will.
Louisiana is the only state that retained the civil-law concept of forced heirship from its French and Spanish legal heritage. In most of the United States, a parent can leave everything to a stranger and disinherit every child without giving a reason. Louisiana does not allow that for a narrow class of descendants. The rule guarantees that a parent's young children, or children who cannot support themselves because of a permanent incapacity, receive a minimum inheritance even if the parent's will says otherwise.
Forced heirship applies only to what a person gives away at death, or in the years immediately before death, in a way that would reduce a qualifying descendant's share below the legitime. A parent who fully and irrevocably gives away property long before death generally does not implicate forced heirship for that gift, though donations made within three years of death can still be brought back into the calculation, as explained below.
Adult descendants who are 24 or older and who do not have a qualifying permanent incapacity are not forced heirs. A parent can leave such a child nothing, and the will stands, so long as it is otherwise validly executed. Parents, siblings, and more remote relatives are never forced heirs under Louisiana law; the protection exists only for descendants of the first degree — children — and, in limited situations, grandchildren by representation.
La. Civ. Code art. 1493 defines forced heirs in narrow, specific terms.
A descendant of the first degree is a forced heir if that descendant is 23 years of age or younger at the moment the parent dies. Article 1493(D) states the rule directly: a person is considered 23 or younger "until he attains the age of twenty-four years." The age is measured at the instant of death, not when a will was signed. A will drafted when children were minors may no longer implicate forced heirship once every child has turned 24, and a will that once excluded an adult child could unexpectedly face a forced heirship claim if that child later becomes permanently incapacitated.
The second category has no age limit. A descendant of any age is a forced heir if, because of mental incapacity or physical infirmity, that descendant is permanently incapable of taking care of their own person or administering their own estate at the time of the parent's death. Article 1493(E) extends this to a descendant with an inherited, incurable disease or condition that is medically documented as likely to render the descendant incapable of self-care in the future, even if not yet incapacitated when the parent dies. This is a strict, fact-specific standard. It is not satisfied by a temporary illness, an ordinary disability that does not prevent self-care or estate management, or an undocumented diagnosis.
If a child of the decedent who would have qualified as a forced heir dies before the parent, that child's own descendants can step into the deceased child's place through representation. Article 1493(B) limits this to situations where the predeceased child would have been 23 or younger at the grandparent's death. Article 1493(C) extends representation on behalf of a permanently incapable descendant of the first degree, regardless of that descendant's age.
The legitime is the minimum fraction of the estate that must go to forced heirs collectively. Everything else is the disposable portion, which a person may leave to anyone.
La. Civ. Code art. 1495 sets the fractions. If the decedent leaves one forced heir, donations inter vivos and mortis causa combined may not exceed three-fourths of the property — one-fourth is reserved as the legitime. If the decedent leaves two or more forced heirs, those donations may not exceed one-half of the property — one-half is reserved and divided among the forced heirs. A parent with two adult, non-disabled children and one 20-year-old child, for example, has only the 20-year-old as a forced heir, so only one-fourth of the estate is reserved for that child, and the remaining three-fourths can go anywhere the parent chooses.
The legitime is not simply one-fourth or one-half of whatever passes through the will. La. Civ. Code art. 1505 requires an aggregate, sometimes called the mass, to be formed: everything the decedent owned at death, minus debts owed by the estate, plus the value of certain donations made within three years of death. The forced portion is calculated against that combined figure, not the probate estate alone. Article 1505 also excludes two categories that surprise many people: life insurance premiums and proceeds are not included in the calculation at all, and life insurance paid to a forced heir is instead credited toward satisfying that heir's legitime. Employer and employee contributions to qualified retirement plans, and the death, disability, retirement, or termination benefits paid under them, are likewise excluded from the calculation and are not subject to a forced heir's claim.
Forced heirship has not always been this narrow, and the history matters for anyone reviewing an older Louisiana will or estate plan.
Until the mid-1990s, Louisiana law made every descendant a forced heir, regardless of age or ability, a rule that traced directly to Louisiana's Roman, French, and Spanish civil-law roots and that set Louisiana apart from every other state. Louisiana voters approved a constitutional amendment in October 1995 authorizing the legislature to narrow forced heirship, and the legislature implemented that authority the following year, adopting the age-23-or-younger and permanent-incapacity framework that remains the law today.
An estate plan drafted before that change, or a will that assumed the older, broader rule, should be reviewed. The class of protected heirs, and the share reserved for them, is now considerably smaller than it once was, and a plan built around the old assumptions can misallocate an estate or leave a forced heir's legitime unaddressed.
Even a qualifying forced heir can be validly disinherited, but only under specific conditions.
La. Civ. Code arts. 1617 through 1621 govern disinherison. Article 1617 allows a testator to deprive a forced heir of the legitime by disinheriting that heir for just cause. Article 1620 makes the list of just causes exclusive: there are no valid causes for disinherison except those the Civil Code expressly recognizes. For children, Article 1621 lists specific conduct, such as raising a hand against a parent or striking a parent, cruel treatment or grievous injury toward a parent, and refusal without just cause to communicate with a parent for a defined period. A parent cannot disinherit a forced heir simply out of preference for another child or disapproval of that child's life choices; the cause must fit one of the categories the Code lists.
Article 1618 requires disinherison to be made in one of the forms prescribed for testaments. It cannot be accomplished informally, in a separate letter, or through statements made outside a validly executed will. Article 1619 requires the disinherison to be express and for a just cause, and the disinherited person must be identified by name or otherwise clearly identifiable in the instrument, or the disinherison is null and the forced heir's legitime is restored in full.
Because forced heirship overrides a will's stated wishes for a narrow class of heirs, it is a factor in nearly every Louisiana estate plan that includes minor children, adult children with disabilities, or a blended family.
A will or trust that does not account for a living forced heir's legitime can be reduced after death, even though the rest of the document remains valid. Trusts designed to hold a minor's or an incapacitated descendant's legitime are a common planning tool: they can satisfy the forced heirship requirement while still controlling how and when the heir actually receives the property, rather than handing a young or vulnerable heir an outright inheritance at 18.
Families across Monroe, West Monroe, and Ouachita Parish who update an estate plan after a divorce, a remarriage, or the birth of a child with special needs are the ones most likely to encounter forced heirship in practice. A parent who remarries and has a young child from the new marriage, while the adult children from a first marriage are no longer forced heirs, still needs a plan that accounts for the young child's legitime. A family caring for an adult child with a permanent, medically documented incapacity needs a plan that recognizes that child as a forced heir regardless of age, and that plans for management of the legitime over that child's lifetime. In both situations, the right structure depends on the family's specific facts, current medical documentation, and the value of the estate, not a generic template pulled from another state's law.
Louisiana's forced heirship rule is narrow but absolute within its scope: descendants who are 23 or younger, or who are permanently incapable of self-care because of a documented mental or physical condition, are entitled to a minimum share of a parent's estate that a will cannot eliminate except through a valid, just-cause disinherison. Every other descendant can be freely included or excluded. Because the age line is measured at death, the incapacity standard requires specific medical documentation, and life insurance and qualified retirement benefits are treated differently from the rest of the estate, a plan drafted years ago — or one borrowed from a common-law state — deserves a fresh look. Hudson, Potts & Bernstein, LLP has advised northeast Louisiana families on succession and estate planning since 1875; contact the firm through /contact/ to discuss how forced heirship applies to a particular estate.
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