What Happens to a 401(k) When Someone Dies?

A 401(k) is often one of the largest financial assets in an estate — and one of the most misunderstood by families trying to handle it. Unlike a bank account, a 401(k) typically bypasses probate entirely and goes directly to the named beneficiary. But what happens when there's no named beneficiary, or when the beneficiary has also died?

This guide explains what families need to know and what to do.

Important upfront: 401(k) and IRA distribution rules are governed by federal tax law (ERISA and IRS regulations). The decisions beneficiaries make — particularly around rollovers vs. withdrawals — have significant and sometimes irreversible tax consequences. Always consult a CPA or financial advisor before taking any distribution from an inherited retirement account. Vera Legacy prepares the notification letters — tax and financial strategy is outside our scope.

What Happens to the 401(k) Balance

A 401(k) is a designated beneficiary account. When the account holder dies, the balance goes to whoever is named as beneficiary on the account — regardless of what the will says. The will does not override a beneficiary designation on a retirement account.

If no beneficiary was named, the account typically becomes part of the probate estate and is distributed according to the will, or by state intestacy law if there is no will. This is significantly more complex and should involve an estate attorney.

The First Step — Notify the Plan Administrator

The employer's 401(k) plan administrator (often Fidelity, Vanguard, Principal, Empower, or similar) must be formally notified of the death before anything else can happen. This is where Vera Legacy's documentation comes in — we prepare the formal death notification letter for the plan administrator, which initiates the estate process on their end.

To notify the plan administrator:

Identify who administers the 401(k) — check old statements, the employer's HR department, or any plan documents found in the deceased's records
Contact the plan administrator's bereavement or estate services line
Submit a certified death certificate and your identification
If you are the named beneficiary, provide your own information to begin the claim process
If you are the executor, provide Letters Testamentary

Beneficiary Options — What Comes Next

Once the plan administrator is notified and the claim is initiated, beneficiaries typically have several options. The right choice depends on the beneficiary's relationship to the deceased, their age, and their tax situation:

Spousal rollover — surviving spouses can roll the 401(k) into their own IRA, deferring taxes until they take distributions. Often the most tax-efficient option for spouses.
Inherited IRA — non-spouse beneficiaries can open an inherited IRA and take distributions over a period defined by IRS rules (generally 10 years under current SECURE Act rules)
Lump sum distribution — takes all funds immediately, but the entire amount is subject to income tax in the year of distribution. Rarely the most tax-efficient choice for large balances.
Disclaim the inheritance — beneficiaries can choose to disclaim the account, passing it to contingent beneficiaries. Must be done within 9 months of death.

The 10-year rule under the SECURE Act requires most non-spouse beneficiaries to fully distribute inherited retirement accounts within 10 years of death. Failing to take required minimum distributions within this window can result in significant IRS penalties. This is a tax matter — consult a CPA or financial advisor.

What If You Can't Find the 401(k)?

Many people change jobs multiple times during their career and lose track of old 401(k) accounts. If you know the deceased had retirement savings but can't identify where, check:

Old employer HR departments — they can confirm whether a 401(k) plan existed
The National Registry of Unclaimed Retirement Benefits at unclaimedretirementbenefits.com
Department of Labor's abandoned plan search at askebsa.dol.gov
Email inbox searches for plan administrator names (Fidelity, Vanguard, Principal, Empower, etc.)
Bank statements for recurring rollover transfers or plan distributions

IRAs — Similar Process, Some Differences

Traditional and Roth IRAs follow a similar beneficiary designation process to 401(k)s. The key differences are that IRAs are held directly at financial institutions (not through employers), making the notification process more straightforward — contact the institution directly with a death certificate and beneficiary documentation. The distribution rules and tax treatment vary slightly between traditional and Roth IRAs — consult a financial advisor for specifics.

Need 401(k) and IRA notification letters prepared?

Vera Legacy prepares formal death notification letters for 401(k) plan administrators, IRA custodians, and all other financial accounts in the estate — alongside every other account. Complete package in 48 hours.

See Concierge Package →

Timeline

Notifying plan administrator: immediate upon obtaining death certificate
Plan administrator processing claim: 2-6 weeks
Beneficiary options presented: after claim is processed
Rollover or distribution: 4-12 weeks from notification
Disclaimer deadline: 9 months from date of death

The most important step is notification — get the death certificate to the plan administrator as soon as possible. Everything else follows from that first contact.