Updating Beneficiary Designations After Divorce
Why Your Will Doesn't Control Who Inherits Your 401(k) — and the Supreme Court Case That Proves It
Part of Nauma's complete guide to Divorce & Financial Planning.
A beneficiary designation on a retirement account, life insurance policy, or brokerage account overrides what a will says. This single fact is the source of one of the most common, and most preventable, mistakes in post-divorce financial cleanup: an ex-spouse who was never removed as a beneficiary can legally inherit the account, no matter what the will, the divorce decree, or every other estate planning document says otherwise.
Why "Revoked Upon Divorce" Doesn't Always Work the Way You'd Expect
More than 40 states have some form of "revocation upon divorce" statute — a law that automatically removes an ex-spouse as a named beneficiary on certain assets once a divorce is finalized, on the theory that the deceased almost certainly intended to remove them but simply forgot. For assets like wills, revocable trusts, and many state-regulated accounts, these statutes generally do their job.
They do not reliably work for 401(k)s, pensions, and other ERISA-governed employer retirement plans — and this is not a minor technicality. In Egelhoff v. Egelhoff, 532 U.S. 141 (2001), the U.S. Supreme Court held that ERISA preempts state revocation-on-divorce statutes as applied to ERISA plan beneficiary designations. In that case, a man divorced his second wife but never updated his Boeing pension and life insurance beneficiary forms before he died; his home state's automatic-revocation law tried to redirect the benefits to his children from a prior marriage, but the Supreme Court ruled that federal law required the plan to pay the ex-wife, the person actually named on the form, regardless of what state law said. The Court later reinforced this in Kennedy v. Plan Administrator for DuPont Savings and Investment Plan, 555 U.S. 285 (2009), holding that even a written waiver of benefits signed as part of a divorce settlement does not override the beneficiary designation on file with an ERISA plan — the plan administrator is required to follow the plan documents, not the divorce paperwork, unless a proper QDRO is in place.
The practical rule that follows from these cases: for 401(k)s, pensions, and most employer-sponsored retirement and life insurance plans, the named beneficiary on file controls, full stop — no matter what your state's revocation law says, no matter what your will says, and no matter what your divorce decree says, unless you affirmatively file a new designation.
IRAs Are a Different Story
IRAs are not ERISA-governed — they are individual accounts under the tax code, not employer plans — so the federal preemption established in Egelhoff generally does not apply to them. In most states with a revocation-on-divorce statute, an ex-spouse named as an IRA beneficiary before the divorce is automatically removed once the divorce is final, and the IRA typically passes to contingent beneficiaries or through probate instead. Because this varies by state, and because IRA custodians handle the practical mechanics differently, the safest approach is the same regardless of the state law's default: update the beneficiary designation directly, rather than relying on a state statute to work as expected.
The Complete Post-Decree Checklist
Because the Egelhoff/Kennedy rule applies specifically to ERISA plans, and other assets follow other rules entirely, a thorough post-divorce cleanup should not assume any single rule covers everything. At minimum, review and update beneficiary designations on: 401(k) and other employer-sponsored retirement plans; IRAs (traditional and Roth); life insurance policies, including any employer-provided group life insurance; brokerage account transfer-on-death (TOD) or payable-on-death (POD) designations; and any trust that names beneficiaries, or that is itself named as a beneficiary on other accounts. See Trust for how trust beneficiary designations interact with the accounts they're named on.
There Is No Grace Period
The most important practical point in this entire topic: none of this has a deadline in the ordinary sense, and none of it happens automatically for ERISA-governed accounts. If death occurs before the beneficiary form is updated, the outcome is determined by whatever was on file at that moment — not by intent, not by the divorce decree, and not by what "should have" happened. This is why financial advisors and estate attorneys consistently recommend treating beneficiary updates as one of the very first items on a post-decree checklist, not something to circle back to "eventually" alongside broader estate planning.
Coordinating With the Rest of Your Estate Plan
Beneficiary designation updates should happen alongside — not instead of — a broader review of your will, any revocable trust, financial and healthcare powers of attorney, and any advance healthcare directive, since a divorced spouse may also still be named in those documents in roles beyond just beneficiary (executor, trustee, healthcare agent). A full estate plan review after divorce is a separate, larger project; this page addresses specifically the beneficiary-designation piece, which is both the most consequential and the most commonly overlooked.
California Note
California is a community property state, which adds a layer of complexity to naming beneficiaries even before a divorce is contemplated: for a retirement account funded during the marriage, a spouse generally has a community property interest in that account regardless of whose name is on it, and some custodians require a spouse's written consent before allowing someone other than the spouse to be named as beneficiary of more than half the account's value. Once a divorce is finalized, California's own revocation-on-divorce statute applies to many non-ERISA assets — but, consistent with Egelhoff, does not override the beneficiary designation on file with an ERISA-governed 401(k) or pension. California divorcing spouses should treat updating ERISA-plan beneficiary designations as a required, affirmative step — not something the divorce decree or state law handles automatically.
This article is for educational purposes only and does not constitute legal, tax, or financial advice. Beneficiary designation rules vary by account type, plan type, and state, and the consequences of an outdated designation can be significant and difficult to reverse after death. Consult a qualified estate planning attorney to review and update all beneficiary designations promptly after a divorce is finalized.
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