When a plan participant dies, the plan sponsor inherits one of the most sensitive jobs in 401(k) administration: paying the right person, the right amount, under the terms of the plan document, while a grieving family waits. It feels like an HR courtesy. It is a fiduciary duty, and the mistakes are expensive because money paid to the wrong person usually cannot be clawed back cleanly.
This guide walks through what employers must do from the moment they learn of a death to the day the account is closed, and which parts of that work they can hand off.
Why a death claim is fiduciary work, not paperwork
ERISA requires plan fiduciaries to act according to the plan document and solely in the interest of participants and beneficiaries. A death claim tests both. The document decides who the beneficiary is when a designation is missing, whether a spouse must consent to someone else being named, how quickly benefits can be paid, and what happens to an outstanding loan. If the plan pays the person named on an old HR form instead of the person the document says should be paid, the plan has made an operational error and the fiduciary who approved it is exposed.
That is why the claim should be handled as a formal benefit claim under the plan’s 3(16) plan administration procedures, not as an informal favor to the family.
How death claims typically go wrong
- The employer pays based on a beneficiary form kept in the HR file that never reached the recordkeeper, or vice versa, and the two disagree.
- A non-spouse beneficiary is paid without a valid, witnessed spousal consent on file.
- A divorce happened after the designation was signed and nobody checked for a domestic relations order.
- Final-paycheck deferrals and employer contributions are dropped or posted after the account is already paid out.
- An outstanding loan is handled differently from what the loan policy says.
- Nobody keeps a record of what was reviewed and why the payee was approved.
The death-claim process, step by step
1. Confirm the death and freeze activity
Obtain a certified death certificate before anything is paid. Notify the recordkeeper so the account is flagged, payroll stops future deferrals, and any automatic loan repayments end. Record the date you were notified; it becomes the starting point of your claim file.
2. Gather every beneficiary designation that exists
Pull the designation on file with the recordkeeper, any paper forms in HR, and any online election history. The governing designation is the one valid under the plan document, usually the most recent properly completed form received before death. Our guide to beneficiary designations covers why these records so often conflict.
3. Apply spousal rights before anything else
Most 401(k) plans make the surviving spouse the default beneficiary of the full account unless the spouse consented in writing to a different beneficiary, with that consent witnessed by a notary or a plan representative. Plans that offer annuity forms of payment carry additional survivor-annuity rules. Confirm the participant’s marital status at death, not at the time the form was signed. A form naming children, a sibling or an estate is not enough on its own if a spouse never consented.
4. Check for domestic relations orders and divorce
If the participant was divorced or separated, ask whether any court order assigned part of the account. A QDRO can give a former spouse rights that survive the participant’s death, and the plan, not the family, decides whether an order is qualified. Whether a divorce automatically revokes an ex-spouse designation is governed by the plan document, not state law, so read the document rather than assuming.
5. When there is no valid designation, follow the default order
The plan document sets the default beneficiary order, commonly the spouse, then children or the estate. Follow it exactly. Do not substitute what the family agrees on informally. If the estate is the beneficiary, payment generally goes to the court-appointed representative, so ask for the appointment documentation.
6. Settle vesting, final contributions and loans
Many plan documents fully vest a participant who dies while employed; others do not. Check the adoption agreement before the recordkeeper calculates the payable balance. Make sure deferrals and employer contributions from the final paycheck are deposited if the document’s compensation definition includes them. For an outstanding loan, follow the written loan policy, which usually treats the unpaid balance as a distribution or offset; our guide to plan loan defaults explains the mechanics.
7. Explain payout options to the beneficiary
Beneficiaries do not all have the same options. A surviving spouse often has rollover and timing choices that a non-spouse beneficiary does not, and post-death distribution timing rules depend on the type of beneficiary. Have the recordkeeper provide the correct beneficiary distribution packet, and avoid giving tax advice. The sponsor’s side of required minimum distributions continues after death.
8. Approve, pay and close the file
Review the claim against the document, approve it in writing, and confirm the payment cleared. If a beneficiary cannot be located or a check goes uncashed, the obligation does not end; see our playbooks on missing participants and uncashed distribution checks.
Disputed and competing claims
When two people claim the same account, the plan should not pick a side informally. Use the plan’s written claims procedure, issue decisions in writing with the reasons and the plan provisions relied on, and allow the appeal the procedure provides. If the dispute cannot be resolved on the documents, many plans hold the funds and seek legal advice rather than paying anyone. Paying quickly is not the same as paying correctly.
An 8-point self-check for your next death claim
- Certified death certificate on file and the notification date recorded.
- Payroll deferrals and loan repayments stopped.
- All beneficiary designations collected from every source.
- Marital status at death confirmed, with spousal consent verified if a non-spouse was named.
- Domestic relations orders and divorce history checked.
- Vesting, final contributions and loan treatment confirmed against the document.
- Correct beneficiary packet delivered and payout election received.
- Written approval, payment confirmation and decision rationale filed together.
Where sponsors get hurt
- Relying on the HR file instead of the plan document and the recordkeeper record.
- Treating an old spousal consent as valid after a remarriage.
- Letting a manager or the family push for a fast payout before the review is done.
- Having an SPD that describes beneficiary rules differently from the document.
- Keeping no record of the decision, which leaves nothing to show if the payee is later challenged.
What you can delegate and what stays with the employer
A 3(16) administrator can run the claim review, coordinate the recordkeeper, check designations and spousal consents against the document, and keep the decision file. What only the employer can supply is the information: date of death notification, final pay and hours, marital status known to HR, any orders received, and the HR copy of past forms. Plan design choices, such as whether death triggers full vesting, are settlor decisions the employer makes through the document. Reviewing these provisions is part of a regular 401(k) plan review.
Hand the fiduciary decision to someone who accepts it
Death claims are where a plan’s records, document and procedures all get tested at once, usually under emotional pressure. Admin316 serves as your 3(16) plan administrator and, unlike most providers, accepts appointment as the ERISA 402(a) named fiduciary, so the person deciding who gets paid has formally accepted responsibility for that decision.
Book a conversation with Admin316 to review how your plan would handle a participant’s death today.

