Two small Latin phrases, per stirpes and per capita, quietly decide who inherits when one of your heirs dies before you do. Choosing the wrong one can leave a grandchild with nothing, or hand a windfall to people you never intended.
If you are drafting a will, naming beneficiaries on a retirement account, or reviewing a parent's estate plan, you will eventually run into these two terms. They sound technical, but the idea behind them is simple: they are instructions for what happens to an inheritance share when the person who was supposed to receive it has already passed away. Getting them right is one of the most overlooked parts of writing a will.
What "Per Stirpes" Means
Per stirpes is Latin for "by the branch." Think of your family as a tree, with each child starting a separate branch. Under per stirpes, each branch gets an equal share. If one of your children has died before you, their share does not disappear or get spread among your other children. Instead, it flows down their branch to their own children, your grandchildren, divided equally among them.
This is the distribution method most people picture when they imagine "fair." It keeps each family line whole. If you had three children and wanted each line to receive a third no matter what, per stirpes delivers exactly that, generation after generation.
What "Per Capita" Means
Per capita is Latin for "by the head." Here the focus is on living individuals at a given generation, not on branches. The estate is divided equally among the people who are actually alive to receive it. If one of your children has died, that child's share is not passed down to their kids; instead, the entire estate is simply split among the surviving beneficiaries, each getting a larger, equal slice.
A common variation is per capita at each generation, where everyone at the same generational level receives an identical amount. That can appeal to people who want every surviving grandchild treated the same, regardless of how many siblings their parent had.
A Concrete Family Example
Numbers make the difference obvious. Imagine Maria has an estate worth $300,000 and three children: Ann, Ben, and Carlos. Sadly, Carlos dies before Maria. Carlos left two children of his own, Maria's grandchildren, Dana and Eli.
| Heir | Per Stirpes | Per Capita (surviving children) |
|---|---|---|
| Ann (living child) | $100,000 | $150,000 |
| Ben (living child) | $100,000 | $150,000 |
| Carlos (deceased) | His $100,000 passes down | $0 (share redistributed) |
| Dana (grandchild) | $50,000 | $0 |
| Eli (grandchild) | $50,000 | $0 |
Under per stirpes, Carlos's branch still receives a full third. His $100,000 splits between Dana and Eli, who get $50,000 each. Ann and Ben keep their $100,000 shares. The grandchildren step into their late father's place.
Under per capita among the surviving children, Carlos's share evaporates from his line. The whole $300,000 is divided between Ann and Ben, who each receive $150,000. Dana and Eli inherit nothing. Same family, same will, wildly different outcome, all because of two words.
Which Should You Choose?
There is no universally correct answer. The right choice reflects your values and your family's shape.
- Choose per stirpes if you want each family line protected, so a deceased child's children inherit their parent's portion. This is the most common pick for parents and grandparents who want money to follow bloodlines down the tree.
- Choose per capita if you want equal dollar amounts among the people actually alive to receive them, or if you would rather treat all grandchildren identically instead of giving larger branches more.
- Think carefully with blended families. Stepchildren, second marriages, and uneven numbers of grandchildren can make these defaults behave in surprising ways. Estate planning for blended families often needs custom language rather than a single Latin phrase.
It also matters how this interacts with what happens to specific accounts. Retirement plans, for instance, follow their own beneficiary forms, so coordinate your 401(k) and IRA designations with your will so they tell the same story.
How to Specify It in a Will or Beneficiary Form
You generally cannot just check a box and walk away. The language has to appear in the right place and be clear enough to survive scrutiny.
- In a will or trust: The phrase appears right after you name a class of heirs, for example, "I leave my residuary estate to my children, in equal shares, per stirpes." An estate attorney will tailor the exact wording, because a vague clause can trigger litigation or fall back on state default rules.
- On beneficiary designations: Many forms for life insurance, IRAs, and 401(k)s let you write "per stirpes" next to a beneficiary's name, but not all do. If the form has no option, call the institution; some require a separate per stirpes election. Our beneficiary designation guide walks through how these forms override your will.
- Name contingent beneficiaries too: Per stirpes is not a substitute for listing backups. A clearly named contingent (secondary) beneficiary removes ambiguity if your first choice dies first.
- Revisit after every major life event: A birth, death, marriage, or divorce can quietly break your plan. Knowing when to update your will keeps these instructions current.
What Happens If You Say Nothing
If you do not specify a method and a beneficiary dies before you, the outcome shifts to state law and asset type. Most states have an anti-lapse statute that redirects a deceased beneficiary's gift to their descendants, which can resemble per stirpes, but only for certain relatives and only for wills. Assets with their own beneficiary forms may pass to a contingent beneficiary or, if none is named, drop into your estate and go through probate. If you have no valid will at all, the entire estate is distributed under your state's intestacy rules, which may not match your wishes at all. Spelling out per stirpes or per capita is how you keep that decision in your own hands.
This article is general information, not legal, financial, or tax advice. State laws and the wording of these clauses vary, so consult a qualified estate planning attorney before finalizing your documents.