Your Will Doesn't Control Your Retirement Account. This Form Does.

A woman told me recently, almost as an aside, that she'd been divorced three years and never gotten around to updating her beneficiaries. She said it the way people say things they already suspect are a problem.

She wasn't wrong.

The Form Nobody Rereads

Here's the part that gets people: your will doesn't touch your retirement accounts, your life insurance, or anything set up as transfer-on-death. The form does. It doesn't matter what your will says, or what you meant to do about it—the form doesn't read intentions, it reads names.

I've sat across from people finding this out at the exact moment there's nothing left to do about it. An ex-husband still listed on a 401(k). A beneficiary who died a decade ago and was never swapped out, so the money detours through probate instead of going where it was supposed to. A form that still says “my estate”—which most people read as a formality and is actually an instruction to route the whole thing through probate court.

Catch it early and it's a form you fill out online in ten minutes. Miss it, and there's no version of “I'll get to it” that fixes what's already happened. It's the first thing I check with a new client, before we've talked about a single investment—because it's the fastest, quietest way to lose real money, and it has nothing to do with the market.

What Actually Breaks It

A beneficiary form doesn't expire on a schedule. It goes stale the moment your life changes and the paperwork doesn't hear about it—a divorce, a remarriage, a new baby, the death of whoever you'd named, a new job with a new plan attached.

Divorce is the one people get most confidently wrong. The assumption is that the decree handles it automatically. Often it doesn't. Or rather—it depends entirely on which law is governing the account, and most people never find out which one that is until it's too late to matter. Some states do revoke an ex-spouse's beneficiary status the moment the divorce is final. A lot of retirement plans run on federal law instead—a law called ERISA—and ERISA can override that state protection completely. A judge can order an ex-spouse removed from a 401(k) in the divorce decree, and the beneficiary form can still say otherwise, because the decree and the form are two different documents that don't automatically talk to each other.

Remarriage does the opposite kind of damage. New spouse, same old form, and the person you actually live with now isn't the one who inherits. Nobody's tracking your marital status for you. That part's yours.

The Retirement Account Wrinkle

There's a detail here that catches even people who are otherwise on top of things. A house or a brokerage account gets what's called a step-up in basis when you inherit it—the new owner starts counting from today's value, not the price you originally paid. A traditional IRA or 401(k) doesn't get that.

Whoever inherits it owes ordinary income tax on the way out, same as you would have. And since 2019, most adult children can't stretch that withdrawal across their own lifetime anymore. They generally have ten years to empty the account, sometimes with required withdrawals inside that window depending on your age when you died. There's an exception worth knowing: a spouse who inherits an IRA can roll it into their own and follow a different set of rules entirely. It's non-spouse beneficiaries—adult children, siblings, a trust—stuck with the ten-year window.

The money story people tell themselves is some version of “the IRA's already handled, that one's for the kids.” It is handled. It's just not handled the way most people picture it, and the gap shows up as a real tax bill for somebody who wasn't expecting one.

The Fifteen-Minute Fix

None of this needs a lawyer or an afternoon. Pull up every account where you've ever named a beneficiary—retirement accounts, life insurance, anything transfer-on-death—and check both the primary and the contingent. You know how every house has one drawer where things go in and never come back out? That's the contingent beneficiary field for most people. Nobody's opened it in years.

While you're in there, add up the percentages. I've seen forms where three beneficiaries were each listed at fifty percent, because nobody redid the math after adding a second child—technically invalid, and it's the custodian, not you, who decides how to sort that out if you're not around to ask.

Confirm the names and the percentages actually match the life you're living now, not the one you were living when you filled the form out. Most custodians let you fix it online, no attorney required, done the moment you hit submit. If you keep a letter of instruction, update that too, so whoever's helping your family someday is working from something true.

People Also Ask

Do beneficiary designations override my will?

Yes. Retirement accounts, life insurance, and anything with a transfer-on-death or payable-on-death designation pass directly to whoever's named on that form, no matter what your will says. When the two disagree, the form generally wins—which is exactly why they're worth checking together instead of assuming they match.

How often should I update my beneficiary designations?

Every few years on its own, and immediately after anything that changes your life: divorce, remarriage, a new baby, the death of someone you'd named. Most custodians let you check and fix this online in a few minutes. There's rarely a real reason to let years go by.

Does divorce automatically remove my ex-spouse as a beneficiary?

Often, no. Some states revoke it automatically, but plenty of retirement plans run on federal law that can override that protection entirely. Safest assumption: nothing changes until you go change it yourself, directly with the plan.

What happens if I leave my IRA to my kids?

It doesn't get the step-up in basis a house or brokerage account gets. Whoever inherits it usually owes income tax on the way out and, under current rules, generally has ten years to empty the account. Worth planning around, not just assuming it's handled.

Do I need an attorney to update a beneficiary designation?

No—most updates happen straight through the custodian, insurer, or HR department, often online. What actually helps is making sure that update, your will, and any trust are all telling the same story, instead of three documents quietly disagreeing with each other.

In Closing

People don't put this off because it's complicated. They put it off because updating it means sitting with something for another fifteen minutes—the divorce, the death, whatever changed. That's a completely reasonable thing to want to avoid. It's also the only thing standing between the plan you have on paper and the one that's actually true.

I'll be walking through the beneficiary audit, the retirement account tax rules, and where a trust actually earns its cost on November 4th, live, with Frank Granizo and estate attorney Rocco Seminerio. The form doesn't know about your divorce. It doesn't know about the baby, or the promotion, or the ten years since you last opened that drawer. It just knows what it says. Fifteen minutes decides whether those two things finally match.

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