Dying without a will: who inherits under intestacy law, what children are entitled to, why unmarried partners get nothing, and what happens to minor kids

Most American adults do not have a will, which means most American estates are distributed by a formula their owners never read. That formula is intestate succession: each state's statutory answer to "who gets the property when the deceased didn't say." It is rigid, it ignores modern family structures, and it regularly produces outcomes that would have horrified the person who died.

Here is how intestacy actually works, who the formula includes, who it shuts out completely, and what it never controls.

What does dying intestate mean?

Dying intestate means dying without a valid will, which triggers the state's intestate succession statute as the substitute distribution plan. The estate still goes through probate; the court still appoints someone to administer it; debts and taxes still get paid first. The difference is what happens at the end: instead of following the deceased's instructions, the administrator distributes the remaining property to the heirs the statute designates, in the shares the statute fixes.

Partial intestacy is also possible: a will that fails to dispose of everything (or is partially invalid) sends the uncovered property through the intestacy formula while the rest follows the will. And a will that's improperly executed (unsigned, unwitnessed in states requiring witnesses) can fail entirely, making its author intestate despite their best intentions. The formula is the default that catches everything the paperwork doesn't.

Who inherits under intestate succession?

Every state's formula runs the same basic sequence: surviving spouse and descendants first, then parents, then siblings and their descendants, then grandparents, aunts, uncles, and cousins. The shares within that sequence are where states diverge sharply, especially at the top.

When the deceased leaves a spouse and no children, most states give the spouse everything, though some carve out a share for the deceased's surviving parents. When the deceased leaves children and no spouse, the children divide the estate equally, with a deceased child's share passing down to that child's own children (the grandchildren "represent" their parent).

The complicated case, and the common one, is a surviving spouse plus children. Under the Uniform Probate Code approach, the spouse takes the entire estate if all of the deceased's children are also the spouse's children (the intact-family assumption). But when the deceased had children from a prior relationship, the spouse takes a fixed amount plus a fraction (commonly half) of the balance, and the children split the rest. Other states are less generous to spouses across the board: some give the spouse one-third or one-half whenever children survive, period.

Community property states (Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, Wisconsin) run a different track: the deceased's half of community property typically passes to the spouse, while separate property splits between spouse and children by formula. In Texas, for example, a deceased parent's separate real property passes to the children with the spouse retaining only a life estate in one-third, an outcome that routinely stuns surviving spouses.

What is a child entitled to when a parent dies without a will?

The child's share depends entirely on who else survives. With no surviving spouse, the children take the entire probate estate in equal shares. With a surviving spouse who is also the child's other parent, many states give the child nothing immediately (the spouse takes all, on the assumption it flows to the children eventually). With a surviving spouse who is not the child's parent, the child takes a statutory share alongside the spouse, commonly splitting half the estate with their siblings.

Three rules about who counts as a child: adopted children inherit exactly like biological children in every state. Stepchildren who were never legally adopted inherit nothing, no matter how long or fully they were raised by the deceased. Children born outside marriage inherit from their mother automatically and from their father when paternity is established (by acknowledgment, court order, or DNA evidence, with procedures varying by state). Children conceived before but born after the parent's death inherit as if born during the parent's life.

Minor children can't hold significant property directly, so a child's inheritance typically lands in a court-supervised custodianship or conservatorship until age 18 or 21, at which point the child takes it all outright, a timing most parents would never choose voluntarily.

Who gets nothing under intestacy?

The formula's exclusions are its harshest feature, because they fall on the modern family structures the statutes never contemplated. Unmarried partners inherit nothing in nearly every state, whether the relationship lasted two years or forty; only a handful of states with registered domestic partnership regimes treat registered partners like spouses. A committed partner can be left with no home, no assets, and no legal standing while the estate passes to distant relatives.

Stepchildren, as noted, take nothing without adoption. Foster children take nothing. Close friends, caregivers, and charities take nothing; no intestacy statute has ever included them. In-laws generally take nothing (a son-in-law doesn't inherit, though his children, the deceased's grandchildren, do). And half-relatives are a state split: most states treat half-siblings identically to full siblings, while a few give them half shares.

Escheat, the state taking the property, happens only when the formula exhausts every branch (no spouse, descendants, parents, siblings or their descendants, grandparents, or their descendants) without finding a living heir. It's the outcome people fear and almost never the outcome that occurs; genealogical heir-hunting exists precisely because some heir can almost always be located.

What property never passes by intestacy?

Intestacy only controls the probate estate: assets owned solely in the deceased's name with no transfer mechanism attached. Everything with its own transfer mechanism bypasses the formula entirely, exactly as it bypasses a will: life insurance and retirement accounts go to their named beneficiaries, jointly owned property with survivorship rights goes to the surviving co-owner, payable-on-death and transfer-on-death accounts go to their designees, and trust assets follow the trust document.

This creates the underappreciated reality that for many families, intestacy governs less than half the wealth. A married homeowner with a jointly titled house, a 401(k) naming the spouse, and joint bank accounts might pass nearly everything outside probate, making the intestacy formula almost academic. Conversely, an unmarried person who never filled out beneficiary forms passes nearly everything through the formula, to whichever relatives it reaches. Which assets have transfer mechanisms attached is the real estate plan most people have, whether they built it deliberately or not; the probate avoidance strategies that work for will-based plans are exactly the mechanisms that override intestacy too.

Who runs the estate, and who raises the kids?

Without a will naming an executor, the court appoints an administrator, following a statutory priority list: surviving spouse first, then adult children, then other relatives, then creditors or public administrators if no one steps up. Competing applications from estranged relatives are a genuine source of intestate-estate litigation, and the appointee must often post a bond (an insurance premium the estate pays) that a will could have waived.

Far more consequential: without a will, no one has nominated a guardian for minor children. If both parents die, a judge selects the guardian from whoever petitions, weighing the children's best interests with no evidence of the parents' preferences. Grandparents, aunts, and uncles can end up litigating custody of grieving children. For parents, this single function (naming a guardian) outweighs every property-distribution reason to make a will, and it cannot be replicated by beneficiary designations or joint titling.

How do you keep the formula from applying to you?

A valid will replaces the formula entirely for everything in the probate estate, and it's the cheapest significant legal document most people will ever buy: a few hundred dollars from an attorney for a straightforward estate, less through reputable software in states where self-drafted wills are practical. Beneficiary designations, joint titling, TOD deeds, and living trusts remove assets from the formula's reach altogether.

The intestacy statute is not a punishment; it's the legislature's best guess at what the average person would want. But it guesses spouse-and-blood-relatives in fixed fractions, and if your life includes an unmarried partner, stepchildren, an estranged relative you'd never enrich, a charity you care about, or minor children who need a chosen guardian, the formula guesses wrong. The only vote you get is cast in advance.