In 2009, the U.S. Supreme Court settled a case that still catches divorcing Americans off guard. A DuPont employee had split from his wife, and the divorce decree explicitly stated she waived her rights to his retirement savings. He never filed a new beneficiary form with the company plan. When he died, DuPont’s plan administrator paid every dollar to the ex-wife, and the Supreme Court said that was exactly right. The divorce decree, however clear, could not override the name on the form.
The case, Kennedy v. Plan Administrator for DuPont Savings and Investment Plan, 555 U.S. 285 (2009), is not an outlier. It reflects a hard rule under federal law: for employer-sponsored retirement plans, the beneficiary designation on file is the only document that determines who gets the money. Not a will. Not a trust. Not a divorce settlement. For the millions of Americans who have gone through a divorce and never revisited the paperwork attached to their 401(k) or IRA, the consequences for surviving family members can be devastating and, in nearly every case, irreversible.
Why the beneficiary form beats everything else
The Employee Retirement Income Security Act of 1974 (ERISA) governs most employer-sponsored retirement plans in the United States. Under 29 U.S. Code Section 1104, plan fiduciaries must administer benefits “in accordance with the documents and instruments governing the plan.” That means the name on the beneficiary designation form controls who receives the money, full stop.
The Kennedy decision made this painfully concrete. Even though the divorce decree contained an explicit waiver of the ex-spouse’s interest in the retirement account, the Court held that the plan administrator was correct to ignore it. The plan’s own records were the only records that mattered.
Eight years earlier, the Court had reached a similar conclusion from a different angle. In Egelhoff v. Egelhoff, 532 U.S. 141 (2001), Washington state had passed a law automatically revoking an ex-spouse’s beneficiary status upon divorce. The Court struck it down. ERISA preempted the state statute. Even a law specifically designed to prevent this exact problem could not survive federal preemption.
Together, these two decisions establish a bright-line rule: for ERISA-governed plans, no state law, divorce decree, or testamentary instrument can redirect benefits unless the participant actually files a new beneficiary form with the plan.
The one exception: QDROs
There is exactly one mechanism that can override a beneficiary designation on an ERISA plan: a Qualified Domestic Relations Order, or QDRO. Under 29 U.S. Code Section 1056(d)(3), a QDRO is a court order issued during divorce proceedings that directs a plan administrator to pay a portion of a participant’s benefits to an alternate payee, typically a former spouse or dependent child. When a valid QDRO is on file with the plan, the administrator must follow it.
The catch is that a QDRO must be drafted with specificity, approved by the court, and formally accepted by the plan administrator before it takes effect. Boilerplate divorce language stating “each party waives rights to the other’s retirement accounts” does not qualify. The Kennedy Court drew that line clearly. If a divorcing couple’s attorney does not prepare and submit a proper QDRO, the old beneficiary designation remains in force.
Spousal protections for current spouses
ERISA does include protections for current spouses, but they are narrower than many people assume. Under 29 U.S. Code Section 1055, certain employer-sponsored plans, particularly traditional defined benefit pensions and some defined contribution plans, must provide joint and survivor annuity benefits. A participant who wants to name someone other than a current spouse as the primary beneficiary must obtain written spousal consent.
These protections help a current spouse assert rights. They do not automatically scrub an ex-spouse from a designation that was never changed. If a participant divorces, remarries, and never updates the form, the spousal consent requirement may create a conflict, but it does not guarantee the new spouse will receive the funds. Filing a new designation is the only reliable fix.
IRAs play by different rules
Individual retirement accounts are generally not governed by ERISA, which means the federal preemption that makes 401(k) beneficiary forms nearly untouchable does not apply. Instead, IRAs fall under a patchwork of state law, custodian agreements, and federal tax rules.
Some states have enacted statutes that automatically revoke an ex-spouse’s beneficiary status on non-ERISA accounts upon divorce. Others have not. The IRS addresses beneficiary designations in the context of required distributions (see IRS Publication 590-B), but the agency does not resolve conflicts between custodian contracts and state probate law. The result: IRA outcomes after divorce can vary significantly depending on where you live and which custodian holds the account.
Because of this inconsistency, updating the beneficiary form on an IRA after a divorce is just as important as updating one on a 401(k), even though the legal landscape differs.
Community property states add another layer
In the nine community property states (Arizona, California, Idaho, Louisiana, Nevada, New Mexico, Texas, Washington, and Wisconsin), a spouse may have a legal ownership interest in retirement assets accumulated during the marriage, regardless of whose name is on the account. This can complicate beneficiary designations in ways that participants in common-law states do not face. A divorce settlement in a community property state should explicitly address the division of retirement assets, and the beneficiary forms should be updated to reflect whatever the parties agreed to. Relying on the divorce decree alone, as Kennedy demonstrated, is not enough for ERISA plans.
Life insurance and other beneficiary-driven accounts
Retirement accounts are not the only assets where a beneficiary designation overrides a will. Employer-sponsored life insurance policies, annuities, and payable-on-death (POD) bank accounts all operate on the same principle: the form on file with the institution controls the payout. Courts have repeatedly enforced outdated life insurance beneficiary designations in favor of ex-spouses, following the same logic that governs retirement plans. A thorough post-divorce review should cover every account that uses a beneficiary designation, not just the 401(k).
The SECURE Act changed what happens after your beneficiary inherits
Even if your beneficiary designations are current, the rules governing what happens after someone inherits your retirement account have changed significantly. The SECURE Act of 2019 eliminated the “stretch IRA” for most non-spouse beneficiaries, requiring them to withdraw the entire inherited account balance within 10 years of the original owner’s death. The SECURE 2.0 Act of 2022 made additional adjustments to distribution timing. These changes, which remain in effect as of May 2026, can have major tax consequences for your heirs. Naming the right beneficiary now involves thinking not just about who should receive the money, but how the distribution timeline will affect them.
How to check and update your beneficiary forms
The process is straightforward, but no plan administrator, HR department, or IRA custodian is required to remind you that your forms are outdated after a divorce. Here is what to do:
- Contact your employer’s HR or benefits department. Ask for a copy of the current beneficiary designation on file for every employer-sponsored plan: 401(k), 403(b), pension, and group life insurance.
- Log into your plan’s online portal. Most major recordkeepers (Fidelity, Vanguard, Schwab, TIAA, Empower) allow you to view and update beneficiary designations online. Look under account settings or “beneficiaries.”
- Review IRA and brokerage accounts separately. Contact each custodian directly or check online. IRA beneficiary forms are maintained by the custodian, not your employer.
- Name both primary and contingent beneficiaries. A contingent beneficiary receives the funds if the primary beneficiary dies before you. Leaving this blank can push the account into probate.
- Consider per stirpes designations. If you name your children as beneficiaries, a “per stirpes” designation ensures that a deceased child’s share passes to their own children rather than being redistributed among surviving siblings. Not all plans offer this option, so ask.
- Get spousal consent if required. If you are currently married and want to name someone other than your spouse as the primary beneficiary on an ERISA-governed plan, your spouse must sign a written waiver.
- Keep a copy of every submitted form. Confirmation pages, timestamps, and written acknowledgments from the plan administrator create a paper trail if a dispute arises later.
The entire process typically takes less than an hour per account. Compared to the cost of a court fight over misdirected retirement savings, that is a negligible investment of time.
The form is the final word
The Supreme Court has made this as explicit as any legal principle gets: for ERISA-governed plans, the beneficiary designation on file controls the outcome, even when it conflicts with a divorce decree or a carefully drafted estate plan. For IRAs, the rules vary by state, but the practical reality is the same. No probate judge and no amount of common sense will redirect your retirement savings to the people you actually intended to receive them if the form says otherwise.
Updating a beneficiary designation takes minutes. Failing to do so can cost your family every dollar in the account. If you have been through a divorce and have not checked your beneficiary forms recently, that single task may be the most consequential piece of financial housekeeping you will ever complete.
