Per Stirpes

Per stirpes, which translates to “by roots” or “by branch,” is an important legal term to understand in estate planning. It dictates what happens if a named beneficiary dies before the testator (i.e., the person who makes the will). In this situation, if per stirpes distribution is designated in the last will or trust, the deceased beneficiary’s shares of the estate will be divided equally among their surviving descendants. 

A per stirpes distribution works lineally downward and only with direct heirs. So, a deceased beneficiary’s descendants would only include biological children, adopted children, and biological/adopted grandchildren—not step-children who haven’t been adopted, spouses, siblings, or other relatives.

Per stirpes differs from the per capita designation, which dictates that if a listed beneficiary dies before the testator, their shares will then be divided equally among the surviving beneficiaries—instead of equal shares being distributed to the deceased beneficiary’s heirs.

How per stirpes works

According to the per stirpes method, if a named beneficiary dies first, their share passes equally to their own children. If those children have also died, the share continues down that family line until a living descendant is found.

Example: A parent leaves an estate equally to three children: Alex, Blake, and Casey. Blake dies before the parent, leaving two children. Under per stirpes, Alex and Casey each receive one-third. Blake’s one-third is divided equally between Blake's two children, giving each grandchild one-sixth of the total estate.

Why per stirpes matters

Without a clear per stirpes designation, distribution depends on the language of the will or trust and applicable state law, which may produce a result different from what the decedent intended. Per stirpes removes that ambiguity and ensures a deceased beneficiary's descendants are not inadvertently cut out of the estate.

It is especially useful in blended families or when beneficiaries may predecease the decedent. It keeps assets within the intended family branch rather than shifting them to surviving beneficiaries in other branches.

Common uses

Per stirpes can appear in several estate planning and beneficiary documents:

• Wills: Assets may pass to children “in equal shares, per stirpes,” so a deceased child’s share passes to that child’s descendants.
• Living trusts: A trust may use per stirpes language to direct how trust assets pass to successor beneficiaries.
• Retirement accounts (IRAs, 401(k)s) and life insurance: Account owners may be able to choose per stirpes distribution on beneficiary designation forms. Because these assets often pass outside probate, the account’s beneficiary designation generally controls, not the will.

Per stirpes vs. per capita

Per stirpes and per capita are estate distribution methods that explain who receives property if a beneficiary dies before the person leaving the assets. The main difference is whether the deceased beneficiary’s share passes down to that person’s descendants or gets divided among the surviving beneficiaries.

Per stirpes means “by branch.” Under this method, each family branch keeps its share. If a beneficiary dies before receiving an inheritance, that beneficiary’s children or descendants usually divide the deceased beneficiary’s share.

Per capita means “by head.” Under this method, the property is divided equally among the living beneficiaries in the named group. If one beneficiary has died, that person’s descendants may not receive that share unless the will, trust, beneficiary form, or state law says otherwise.

Key limitations

Per stirpes does not apply automatically, and its mechanics can produce unequal results across branches.

• The term must appear explicitly in the will, trust, or beneficiary designation form. Vague language may trigger state default rules, which vary by jurisdiction.
• Because per stirpes divides by branch rather than headcount, grandchildren in different branches may receive unequal amounts.
• Assets that pass to minor beneficiaries may require a guardian or trustee to manage them until they reach the age specified by law or the governing document.
• Some states recognize “modified per stirpes,” which begins dividing shares at the first generation with at least one living member rather than always at the first generational level.

Related terms

Per stirpes connects to several estate planning documents and legal processes that affect how assets are distributed after death.

• Last will and testament: It is a legal document that directs how a will maker’s property/assets should be distributed after their death.
• Living trust: An alternative to a will to manage a person’s estate without going to probate.
• Beneficiary: A beneficiary is a person or organization named to receive property, account benefits, or trust assets.
• Descendant: A descendant is a person in a direct family line, such as a child, grandchild, or great-grandchild.
• Beneficiary designation: A beneficiary designation names who should receive certain assets, such as retirement accounts or life insurance proceeds.
• Intestate succession: Intestate succession is the state-law process for distributing property when someone dies without a valid will for that property.
• Probate: Probate is the court-supervised process for administering certain assets after death.

FAQs about per stirpes

What if a deceased beneficiary has no children?

Their share is distributed according to the terms of the will, trust, or beneficiary designation. If the document does not address the situation, applicable state law determines how the share is distributed.

Does per stirpes include a deceased beneficiary's spouse?

Usually, no. Per stirpes follows the beneficiary’s line of descendants, such as children, grandchildren, and further descendants. A surviving spouse doesn’t inherit through a per stirpes designation unless the document specifically gives the spouse a share.

Can per stirpes be used on a retirement account beneficiary form?

Yes, if the account provider allows it. Many retirement account and life insurance beneficiary forms let the account owner choose per stirpes distribution. Because these assets often pass outside probate, the per stirpes language should appear on the account’s beneficiary designation form rather than only in a will.

Does per stirpes apply automatically?

No. A per stirpes distribution generally applies only if the will, trust, or other accounts expressly provide for it or applicable state law sets it as a default. Without a clear designation, distribution follows the governing document and state law.