How beneficiary designations work: primary, contingent, per stirpes
A beneficiary designation is part of the contract between you and the company that holds the asset. You name one or more primary beneficiaries, who inherit first, and contingent beneficiaries, who inherit only if no primary beneficiary survives you. Shares are usually set as percentages that must total 100%.
When you die, the named person claims the money directly from the custodian or insurer, typically with a death certificate and a claim form. No court is involved, which is why these assets skip Probate and why your Will has no say over them. They still count in your gross estate for estate tax, though. The institution follows the form on file, not what you meant. In Kennedy v. Plan Administrator for DuPont (2009), the Supreme Court held that an employer savings plan correctly paid an ex-wife who was still the named beneficiary, even though she had waived the money in the divorce decree.
Most forms also ask what happens if a beneficiary dies before you. Per stirpes passes that person’s share down to their descendants; per capita and similar elections split it among the surviving beneficiaries. The wording differs by institution, so read the definitions on your own form. If no named beneficiary survives, the plan or custodian’s default rules decide, often in favor of your spouse or your estate. An estate means probate and, for an inherited IRA, the less flexible payout rules that apply when the beneficiary isn’t a person.
Spouse rights, divorce and which form wins
Federal law gives a spouse a claim to many workplace plans. In a 401(k) or other profit-sharing plan, the full vested balance generally goes to the surviving spouse unless the spouse consents in writing to another beneficiary, and that consent must be witnessed by a notary public or a plan representative. A 401(k) form that names your children without a valid spousal waiver may not be honored.
An IRA has no federal spousal-consent rule, so you can name anyone. In the nine community property states, though, a spouse may own an interest in an account funded with earnings from the marriage, which can complicate naming someone else.
Divorce is the classic trap. Many states have laws that automatically revoke a former spouse’s designation when a marriage ends, and the Supreme Court upheld one such law for an individual life insurance policy in Sveen v. Melin (2018). Those laws don’t reach employer plans governed by ERISA: in Egelhoff v. Egelhoff (2001) the Court held that federal law preempts them, so the plan pays whoever is named on its form. Federal employee group life insurance follows its own federal rules, too. The reliable fix after any divorce is a new designation on every account.
How the beneficiary you name changes the taxes
For retirement accounts, the beneficiary you name decides how quickly the money must come out and be taxed. Pre-tax balances get no step-up in basis, so every withdrawal is ordinary income to the heir.
A surviving spouse named as sole beneficiary has the most room: they can roll the account into their own IRA or keep it as an inherited account. Other eligible designated beneficiaries, meaning the owner’s minor child, a disabled or chronically ill person, or anyone not more than 10 years younger than the owner, can take payments over their life expectancy. Most other people, including adult children, must empty the account under the 10-year rule. A beneficiary that isn’t a person, such as your estate, gets less flexible rules: if you die before your required beginning date for RMDs, the account must be emptied by the end of the fifth year after death.
The designated beneficiary is fixed on September 30 of the year after death, which leaves heirs room to adjust. A beneficiary who makes a qualified disclaimer, generally within nine months of the death, can pass an account to the next person in line without making a taxable gift. And because heirs owe income tax on pre-tax money but not on qualified Roth withdrawals or stepped-up taxable assets, some owners name a charity on a traditional IRA and leave other assets to family.
Common beneficiary designation mistakes
Beneficiary forms are easy to fill in once and forget, and the errors surface only when nobody can fix them. Because the forms outrank the rest of an estate plan, a stale one can quietly undo a carefully drafted will or trust. Review every designation after a marriage, divorce, birth or death, and whenever you open, roll over or consolidate an account, since a new account can start with a blank form. These problems come up most often.
- Leaving a former spouse named after a divorce, especially on a workplace plan, where state revocation laws don’t apply.
- Naming no contingent beneficiary, so the account falls to your estate if the primary beneficiary dies first.
- Naming a minor outright: a court may need to appoint someone to manage the money, so consider a custodial account under state law or a Trust.
- Naming your estate, which sends the asset through probate and within reach of the estate’s creditors.
- Assuming your will or living trust controls an account that has its own form.
- Naming someone who relies on means-tested benefits, which an inheritance can disrupt; a supplemental needs trust may fit better.
Illustrative numbers
Per stirpes vs. per capita when a child dies first
IRA balance at death$600,000
Named beneficiariesThree children, one-third each
SituationOne child died earlier, leaving two children
Per stirpes: each surviving child$200,000
Per stirpes: each grandchild$100,000
Per capita among survivors: each surviving child$300,000
Per capita among survivors: each grandchild$0
The same form gives the deceased child’s family $200,000 or nothing, depending on one election. The grandchildren’s inherited shares would generally have to be emptied within 10 years, so the choice shapes their income taxes as well as fairness between branches of the family.
At a glance
Common assets that pass by beneficiary designation, and a spouse’s default position
| Asset | How heirs are named | Spouse’s default position |
|---|---|---|
| 401(k) or other ERISA-covered plan | Plan beneficiary form | Entitled to the vested balance unless they sign a notarized or plan-witnessed waiver |
| Traditional or Roth IRA | Custodian’s beneficiary form | No federal consent rule; community property law may give an interest |
| Life insurance | Policy beneficiary designation | Set by the policy and state law |
| Bank account or CD | Payable-on-death (POD) beneficiary | Depends on state law |
| Brokerage account | Transfer-on-death (TOD) registration | Depends on state law |
| Federal employee group life insurance | Federal designation form | Federal order of precedence applies; state divorce laws don’t override it |
Put it in your plan
Beneficiary designation in MoneyWhatIf
When one spouse dies inside a MoneyWhatIf plan, retirement-account ownership rolls to the survivor for withdrawal ages and required distributions. If you are the one inheriting, an inherited IRA or Roth can be added as its own account, already held or arriving in a future year, with a deadline, spread, RMD or stretch schedule you choose; the app doesn’t decide which beneficiary rules apply to you. The Estate page estimates what your own heirs receive, charging an adjustable tax on inherited pre-tax balances, 25% by default, and dividing the net among one to four beneficiaries as an illustration.
Common questions
Beneficiary designation FAQs
Does a beneficiary designation override a will?
Yes, for the account or policy it covers. The asset passes under your contract with the institution, so the custodian pays whoever is named on its form and your will never reaches it. The will matters only if the designation fails, for example when every named beneficiary has died and the default sends the asset to your estate. That is why a will and beneficiary forms that point in different directions often produce an outcome nobody intended.
Can I name a minor child as a beneficiary?
You can, but a minor can’t take legal control of an inheritance, so a court may have to appoint someone to manage it until adulthood. Many forms let you name a custodian for the child under your state’s transfers-to-minors law instead, or you can name a trust for the child. For retirement accounts, the owner’s own minor child can take life-expectancy payments until reaching majority, after which the 10-year clock applies.
What happens if my beneficiary dies before me?
Their share goes wherever the form says. If you named contingent beneficiaries, they inherit. If you chose per stirpes, the share passes to the deceased beneficiary’s descendants. If the form is silent and no one else is named, the plan or custodian’s default rules decide, often sending the money to your estate and through probate. Updating the form after a death in the family avoids relying on defaults.
Can I name a charity as my IRA beneficiary?
Yes, and pre-tax retirement money is often the most tax-efficient asset to leave one. A qualifying charity owes no income tax on what it receives, while a person owes ordinary income tax on every withdrawal, and the bequest is deductible for estate tax. Because a charity isn’t an individual, sharing an account with one can limit the other heirs’ payout options unless the charity is paid its full share by September 30 of the year after death.
Should I name a trust as my IRA beneficiary?
A trust can control money for young, disabled or spendthrift heirs, but it adds complexity. For its beneficiaries to be treated as designated beneficiaries, the trust must be valid under state law, irrevocable at death, have identifiable beneficiaries and give the custodian the required documents. Income the trust keeps is taxed at compressed trust brackets that reach 37% above $16,000 of taxable income in 2026, so a trust meant for this job needs careful drafting.
How do I change a beneficiary designation?
File a new form, or use the institution’s online tool, with each plan, custodian or insurer; a will or letter can’t change it. The institution pays whoever is on the form it has on record, so confirm the change was accepted. Naming someone other than your spouse on a 401(k) also needs your spouse’s notarized or plan-witnessed consent. Recheck every form after a marriage, divorce, birth or death, and after any job change or rollover, along with your transfer-on-death registrations.