Grandchildren are next of kin only when no closer relatives stand between them and the deceased in the legal inheritance order. In practice, that usually means a grandchild inherits under intestate succession (the rules for dying without a will) only if their own parent, the deceased’s child, has already died. If that parent is still alive, the grandchild has no legal claim on the estate, no matter how close the relationship was.
What Next of Kin Actually Means
People use “next of kin” loosely to mean closest family. The law uses it more narrowly. It refers to the relatives with a legal right to inherit from someone who died without a valid will, determined by state intestate succession statutes based on legal relationship to the deceased.1Legal Information Institute. Intestacy
The label matters outside inheritance too. In many states, next-of-kin status controls who can make healthcare decisions for an incapacitated person without an advance directive, and who has authority over funeral and burial arrangements. Grandchildren sit well down these priority lists, behind spouses, adult children, parents, and adult siblings.
Where Grandchildren Sit in the Inheritance Order
Every state uses a similar hierarchy when no will exists. The law starts at the top of the family tree and moves to the next tier only when the preceding group is empty.2Legal Information Institute. Intestate Succession
- Surviving spouse: usually first. If there are no children, the spouse often takes everything.
- Children: if there is no spouse, they split the estate. If a spouse also survives, children share with the spouse in proportions that vary by state.
- Parents of the deceased: inherit only when there is no spouse and no children.
- Siblings: next in line after parents.
- More distant relatives (grandparents, aunts, uncles, cousins): inherit only when every closer category is empty.
Notice what’s missing. Grandchildren have no rung of their own on this ladder. They inherit through a substitution mechanism when their parent, the deceased’s child, is no longer alive.3Justia. Intestate Succession Laws
When a Grandchild Becomes Next of Kin
Two situations put a grandchild in line to inherit under intestate succession.
When the Grandchild’s Parent Has Died First
This is by far the most common path. Under the principle called per stirpes (Latin for “by branch”), the grandchild steps into their deceased parent’s place and takes whatever that parent would have received. Lawyers call this the right of representation.4Legal Information Institute. Per Stirpes
An example. A grandmother dies without a will, leaving two children, Alice and Bob. Alice is alive. Bob died several years earlier, leaving two children of his own. The estate splits into two equal shares. Alice gets her half outright. Bob’s two children divide his half, each taking one quarter of the total. Alice’s children get nothing, because their parent is alive and inheriting directly.
Each family branch preserves its proportional share. So a grandchild whose deceased parent had only one sibling can end up with a much larger share than a grandchild whose deceased parent had four siblings, because they are splitting a single parental share among fewer people.
When Every Child of the Deceased Has Died
If none of the deceased’s children are alive, grandchildren become the closest living descendants and inherit the whole estate. How that estate is then divided among them depends on which method the state uses.
Per Stirpes vs. Per Capita: Why the Split Isn’t Always Equal
Not every state divides an estate the same way once grandchildren inherit, and the difference between methods can move real money.
Per stirpes divides by family branch. The first split always happens at the children’s level, even when none of the children are alive. If one branch produced three grandchildren and another produced one, the three split a single share and the one grandchild gets a full share alone. The lone grandchild ends up with three times as much per person.
Per capita at each generation is the approach used by the Uniform Probate Code and a growing number of states. When every member of a generation has died, the shares allocated to that generation are pooled and split equally among the next. If all three children are gone and six grandchildren survive, each grandchild takes an equal sixth.
Consider a $600,000 estate where all three children have died. Child A left three grandchildren, Child B left one, and Child C left two. Under per stirpes, Child A’s grandchildren get $66,667 each, Child B’s grandchild gets $200,000, and Child C’s grandchildren get $100,000 each. Under per capita at each generation, all six grandchildren get $100,000 apiece. Same family, same estate, very different results depending on state law.
Adopted and Step-Grandchildren
An adopted grandchild has the same intestate inheritance rights as a biological one. Once an adoption is finalized, the adopted person becomes the legal child of their adoptive parents for all purposes, and every state follows this principle in some form.
Step-grandchildren are in the opposite position. Unless the grandparent legally adopted them, they have no inheritance rights under intestate succession. Length of relationship and emotional closeness are legally irrelevant. Without a formal adoption or a will naming them, step-grandchildren are invisible to the intestate system.
What a Will or Beneficiary Designation Changes
Every rule above is a default. It applies only when there is no valid will. A will overrides the entire intestate hierarchy and lets a person direct assets to anyone they choose.3Justia. Intestate Succession Laws
A grandparent can name a grandchild as a beneficiary even though the grandchild’s parent is alive and well, bypassing the standard next-of-kin order entirely. A will can also deliberately exclude a grandchild who would otherwise inherit. The legal distinction matters. A beneficiary is someone named in a will or trust. An heir or next of kin is someone whose right comes from state law when there is no will.
A large share of most people’s wealth never passes through a will or intestate succession at all. Life insurance policies, 401(k)s and IRAs, annuities, payable-on-death bank accounts, transfer-on-death brokerage accounts, and property in a living trust all transfer directly to whoever is named on the account.5Legal Information Institute. Nonprobate Transfer Whatever the will says, whatever intestate succession would require, the beneficiary form controls those accounts.
This is where grandchildren’s expectations most often collide with reality. A will might leave everything equally to three grandchildren, but if the largest asset is a 401(k) with one grandchild named as the sole beneficiary, that account goes entirely to that grandchild. Families regularly discover the mismatch after a death, and by then it cannot be corrected.
Two Rare Paths That Move Grandchildren Up
A grandchild can also become next of kin because their parent chose to refuse the inheritance. A qualified disclaimer lets an heir walk away from their share as if they had predeceased the deceased.4Legal Information Institute. Per Stirpes The disclaimed share then typically passes per stirpes to the disclaiming person’s children. A disclaimer has to be made within nine months of the death and before the person has accepted any benefit from the property. Cashing a check or moving into an inherited house closes the door.
The slayer rule works similarly by force of law. A person who feloniously and intentionally kills the deceased is treated as having predeceased the victim for inheritance purposes.6Legal Information Institute. Slayer Rule If a child is disqualified under this rule, that child’s share passes to their own children through the right of representation, just as it would if the parent had died first. A criminal conviction is not required; courts can make the finding in civil proceedings.
Outside these paths, the answer for a grandchild wondering about intestate rights is straightforward. If the grandparent left no will and the grandchild’s parent is still alive, the grandchild has no legal claim on the estate. If the parent has died, the grandchild stands in that parent’s place, and how much they receive depends on the state’s chosen method of division.