Why a designation can control an asset outside the will
Where the designation is valid and the person named survives the owner, the account passes directly to that person: it does not become part of the estate, the will does not govern it, and probate does not reach it. Each institution then runs its own claim process. That is a feature, and it is also the trap.
For an employer retirement plan the rule is federal and blunt. ERISA requires the plan fiduciary to act in accordance with the documents governing the plan. The administrator pays the person named on the designation the plan holds. A later will naming someone else does not change that instruction, and the administrator has no discretion to depart from it.
This is how an ex-spouse inherits a 401(k) twenty years after the divorce. Not through a legal loophole — through a form nobody updated.
What is governed by a designation rather than a will
- 401(k), 403(b) and other employer retirement plans
- IRAs, including rollover IRAs from old employers
- Life insurance, including employer-provided group coverage
- Annuities
- Pensions, where a survivor election was made at retirement
- Payable-on-death bank accounts and transfer-on-death brokerage accounts
- Health savings accounts
- In some states, transfer-on-death designations on a vehicle title or a deed
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Sahvelo gives information drawn from statutes, agency guidance and official forms. It is not legal advice for your particular situation. Terms & disclaimer.
The four ways a designation fails
1. It is out of date
A frequent failure by a wide margin. Marriages, divorces, births and deaths all change who should inherit, and none of them updates a form.
2. It is blank
If no beneficiary is named, the account usually pays to the estate by default, which means it goes through probate — the delay and cost the designation existed to avoid. Some plans have their own default order instead, which may not be the order the account holder would have chosen.
3. There is no contingent beneficiary
If the primary beneficiary dies first and no contingent is named, the account can end up in the estate anyway. Naming a contingent costs one extra line on the same form.
4. It names a minor child
A minor cannot receive the money directly, so a court usually has to appoint someone to hold it, and the child receives it outright at the age of majority. Where minors are involved, this is a conversation to have with an attorney before filling in the form, not after.
The spouse rule people trip over
On an employer retirement plan, a married participant generally cannot leave the account to anyone other than their spouse without that spouse's written consent. This is not plan policy that varies by employer — it is federal law, and it reaches defined benefit plans, individual account plans subject to the funding standards, and ordinary workplace accounts too. A typical 401(k) escapes the survivor-annuity machinery only by providing that the death benefit goes to the surviving spouse unless the spouse consents, so both routes arrive in the same place.Source 2
The consent is formal, and a conversation is not consent. The plan must provide that a waiver does not take effect unless the spouse consents in writing, the election designates a beneficiary that cannot then be changed without further spousal consent, and the spouse's consent acknowledges its effect and is witnessed by a plan representative or a notary public. A married person who writes an adult child on the form and stops there has usually not achieved what they intended.Source 2
It is an employer-plan rule, and the line is drawn by regulation rather than by custom: an ordinary individual retirement account is excluded from the federal definition of a pension plan, provided the employer contributes nothing, participation is voluntary, and the employer does no more than run payroll deductions and remit them. So an IRA does not carry the same consent requirement — and a household holding a rolled-over IRA alongside a current 401(k) will get different answers about the same intention. Where an employer contributes to the arrangement, the exclusion does not apply.Source 3
The way to settle it for a particular account is to read the plan document rather than to ask at the counter. A plan must furnish its governing documents to a participant or beneficiary who requests them in writing.Source 6
The audit, in one afternoon
This is the whole task. It is not complicated, it is just never done, because nothing ever prompts it.
List them
About an hour
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Write down every account that could have a beneficiary
Current employer retirement plan, every old employer's plan you never rolled over, every IRA, every life insurance policy including the one through work, annuities, HSAs, and any bank or brokerage account with a payable-on-death or transfer-on-death instruction.- Old employer plans are the ones people forget, and they are the ones most likely to still name a parent or an ex-spouse.
- Employer-provided group life insurance is almost never reviewed after the first day of the job.
Check each one
An hour or two
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Log in and read the current designation
Do not rely on memory of what you named. Read the primary beneficiary, the contingent beneficiary, and the percentages.Do after: list accounts
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Confirm every account has a contingent beneficiary
This is the single highest-value line in the whole exercise, and it is blank on most accounts.Do after: check current
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Only if it applies
Ask the plan whether spousal consent is required
If you are married and want to name someone other than your spouse on an employer plan, ask the administrator what consent the plan requires before you submit the form.Do after: check current
Fix and confirm
Same day
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Submit the corrections
Most are now online and take a few minutes each.Do after: check contingent
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Get written confirmation, and keep it
A submitted change that the plan never recorded is the same as no change. Save the confirmation with your other documents, and note the date.Do after: submit
Disputes over designations turn on what the plan held on the date of death. Your copy of the confirmation is the evidence.
Questions people ask about this
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Can I just write in my will who should get my 401(k)?
No. The plan administrator follows the plan documents, which means the designation the plan holds. A will that says otherwise does not bind them.Source 1 -
Doesn't divorce automatically remove an ex-spouse?
Not reliably, and the answer splits by the kind of account. Several states do revoke a former spouse's designation automatically, and some of those provisions reach beyond the will to transfer-on-death registrations, life insurance designations and trust accounts — which state, and how far it reaches, is covered on the wills topic. But an employer retirement plan sits under a federal statute that supersedes state laws insofar as they relate to the plan, and the plan's fiduciary is required to pay in accordance with the plan's own documents. So the administrator is looking at the form on file, not at your state's statute or your divorce decree. An ordinary IRA is outside that federal definition, which is why a rolled-over IRA and a current 401(k) can behave differently. Treat a divorce as a prompt to change every form yourself — it is the one step entirely within your control, and the state statute is a safety net rather than a plan.Source 4Source 5Source 3 -
What happens if I never named anyone?
It usually goes to the estate and therefore through probate, which is slower and more expensive than the designation would have been. Some plans apply their own default order instead. Either way you have lost the control the form gave you. -
How often should these be checked?
Once a year is more than enough, and after any of five events: marriage, divorce, a birth, a death, or changing jobs. Changing jobs is the one people miss, and it is the one that leaves an orphaned account behind.
Official links you'll need
Every link goes directly to the issuing agency or the official tool, and opens in a new tab.
Where this sits in the process
This makes possible
Finishing this unblocks these.
- Finding life insurancea recorded designation is what makes a policy findable later
Related
- Essential documentsdesignations belong in the same file as the will
- Vehicle title transfersome states allow a transfer-on-death designation on a vehicle title
- Wills and trustswhich states revoke a former spouse's designation on divorce, and how far each reaches
- When the beneficiary died firstwhether the anti-lapse rule that rescues a gift in a will reaches a policy or an account, which is a different question with a different answer
- Vehicle beneficiarythe asset almost nobody knows can carry a designation, in the states that allow one
- What controls this assetthe same question asked of everything else you own, and what happens when two instruments disagree
- People who depend on youwho the forms should be pointing at, if somebody relies on you
- Claiming as a beneficiarywhat the person you named actually has to do, and why they will not be waiting for a court
- Is their plan still currentthe same check, run on somebody else's paperwork without asking who is named
Sources
The controlling rule for employer retirement plans is federal statute. Everything else here is contract and institution procedure, which is why the page tells you to ask your plan rather than telling you what it says.
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29 U.S.C. §1104(a)(1)(D) (Fiduciary duties — plan documents rule) (opens in a new tab)
The ERISA plan-documents rule: why the administrator follows the form and not the will.
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29 U.S.C. §1055 — survivor annuities and the spousal consent requirement (opens in a new tab)
Federal: the surviving spouse is the default on an employer plan, and consent must be written and witnessed.
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29 C.F.R. §2510.3-2(d) — individual retirement accounts excluded from Title I (opens in a new tab)
Federal: an ordinary IRA is excluded from the pension-plan definition.
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29 U.S.C. §1144(a) — ERISA preemption of state laws relating to a plan (opens in a new tab)
Federal: ERISA supersedes state laws relating to an employer plan.
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29 U.S.C. §1104(a)(1)(D) — the duty to act in accordance with plan documents (opens in a new tab)
Federal: the fiduciary must pay according to the plan documents.
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29 U.S.C. §1024(b)(4) — furnishing plan documents on written request (opens in a new tab)
Federal: a plan must furnish its documents on written request.
Sources last reviewed 2026-08-13. Where a source is marked pending re-verification, the page says so wherever the claim appears.