What Does Per Stirpes Mean? Use in Estate Planning

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Per stirpes is a legal instruction in a will, trust or beneficiary designation. It says that if a beneficiary dies before the person who created the document, that beneficiary’s share passes down to the beneficiary’s own descendants instead of being redistributed to the other beneficiaries. The phrase is Latin for “by branch” or “by roots,” and that is how it works: each branch of the family tree keeps its share, even when the person at the top of that branch is no longer alive.

What Per Stirpes Means in a Will

A will names who inherits. Per stirpes answers a second question: what happens to a gift if the named person dies first? Without an instruction, that gift may lapse and fall back into the estate, where other terms of the will or state law handle it. A per stirpes clause instead sends it to the next generation of that beneficiary’s line. The clause applies only after an “out of order” death, when a beneficiary predeceases the testator (the person writing the will) or, on a retirement account, the account holder.

How a Per Stirpes Distribution Works

The estate is first divided into shares at the level of the named beneficiaries. A living beneficiary takes their full share. If a beneficiary has died, their share is divided equally among their children. If one of those children has also died, that child’s portion is divided again among their own children, and so on down the branch.

A few rules shape who can receive anything:

• Descendants only. The share travels down the bloodline. A deceased beneficiary’s spouse does not take under a per stirpes designation, so providing for a widow or widower requires a separate gift. Stepchildren generally are not treated as descendants unless they were legally adopted, and state law decides how adopted children are treated.
• Living members cut off the line below them. A surviving child takes their parent’s share, and that child’s own children receive nothing from it.
• The branch must have descendants. If a predeceased beneficiary left no descendants, per stirpes has nothing to pass down, and the document’s other terms or state law decide where that share goes.

The usual drafting form is “to [person’s] descendants, per stirpes.” The named person is normally a single individual rather than a group, and the word “descendants” or “issue” should appear. Someone leaving property to their own family might write “to my descendants, per stirpes.” You can also name someone outside your line, such as a friend or a niece, and add that their descendants inherit per stirpes if they die first.

Per Stirpes Example

Hypothetical family, for illustration only. Elena has two children, Mark and Julia. Mark has two children, Ava and Leo. Julia has one child, Sam, and Sam has two children, Nora and Theo. Elena’s will leaves her estate to her children in equal shares, per stirpes.

Scenario 1: everyone survives Elena. Mark and Julia each take 50%. No grandchild or great-grandchild receives anything, because the clause is never triggered.

Scenario 2: Mark dies before Elena. Julia takes 50%. Mark’s 50% is split between Ava and Leo, so each receives 25%. Sam, Nora and Theo receive nothing, because Julia is alive and holds her branch’s share.

Scenario 3: Julia and Sam both die before Elena. Mark takes 50%. Julia’s 50% passes to Sam, but Sam is also gone, so it moves down another generation to Nora and Theo at 25% each. Ava and Leo receive nothing, because their father Mark is alive.

Per Stirpes vs. Per Capita

Per capita means “by the heads.” Instead of protecting branches, it divides property equally among people. The term is used in more than one way, so the document’s own definition controls:

• Among named beneficiaries, as on many account beneficiary forms, per capita usually means a predeceased beneficiary’s share goes to the surviving named beneficiaries. In Scenario 2, Julia would take 100% and Mark’s children would receive nothing.
• Among descendants, per capita can mean equal shares for each person at a given generation. Using the same Scenario 2, one version splits the estate into three equal portions: one to Julia and one each to Ava and Leo, so each gets one-third.

Neither approach is better in general. Per stirpes suits someone who wants each child’s family to receive the same total regardless of how many grandchildren there are. Per capita suits someone who wants survivors to take everything, or who wants each person at a generation treated identically.

Where Per Stirpes Is Used

Per stirpes appears in three main places:

• Wills, where it governs gifts from the probate estate.
• Trusts, where it can direct how trust property passes to remainder beneficiaries.
• Beneficiary designations on IRAs and similar accounts. These assets pass under the beneficiary form rather than the will, so a per stirpes election has to be made on the form itself. A will clause does not carry over to them. Many custodians offer a per stirpes checkbox or wording option on their designation forms.

Limitations and Common Problems

• Jurisdictional differences. States define per stirpes differently. Under “strict” or “pure” per stirpes, the estate is always split at the children’s level, even if every child has died. Other versions start the division at the first generation with a living member, or use per capita at each generation. These can produce different numbers for the same family, so a document that relies on a bare term inherits the local definition.
• Unequal per-person outcomes. A grandchild who is one of four in a branch can receive far less than an only child in another branch. That is the intended result of per stirpes, but it surprises some families.
• Inconsistent documents. A will that says per stirpes and a beneficiary form that says per capita can send different assets in opposite directions.
• No will at all. If there is no will, state intestacy law decides how property is divided, and the family has no choice over the method.

Because a single drafting error can change who inherits, estate planners typically recommend having an attorney familiar with your state’s law draft or review the language, and checking that wills, trusts and beneficiary forms all use the same method.

The Bottom Line

Anyone writing a will, setting up a trust or naming beneficiaries on an IRA should decide whether each family branch or each person should be treated equally. Per stirpes keeps branch shares intact, while per capita favors survivors or equal individual shares. Because states define the term differently, an attorney familiar with local law should review the wording, and all documents should use the same method.