Someone spends money on a carefully drafted will. It names their current spouse, divides things thoughtfully, accounts for the children. It is signed, witnessed, and stored properly.
Their 401(k) still names the person they were married to in 2009.
The 401(k) does not care about the will. Accounts with beneficiary designations pass by contract, directly to whoever is named, outside the estate entirely. The will governs what is left over — and for many people, the accounts with designations hold most of the money.
What changed in 2026
- Distribution rules for inherited retirement accounts stayed complex. Most non-spouse beneficiaries face a compressed withdrawal window, which makes who you name a tax decision, not just a wishes decision.
- Job changes accelerated. More frequent moves mean more retirement accounts, each with its own designation set at hiring and rarely revisited.
- Digital-first providers made review easier and less prompted. Designations are visible in an app and nothing nudges you to look.
- Auto-enrolled accounts multiplied. Automatically opened workplace accounts frequently have no beneficiary named at all, which is worse than a stale one.
Which accounts are governed by a form
| Passes by beneficiary form |
Passes by will |
| 401(k), 403(b), pensions |
Individually-held bank accounts |
| IRAs, Roth IRAs |
Vehicles, most personal property |
| Life insurance |
Real estate held alone |
| Annuities |
Business interests, unless otherwise structured |
| HSAs |
Anything with no designation |
| Payable-on-death bank accounts |
|
| Transfer-on-death brokerage accounts |
|
Look at the left column and estimate what fraction of your net worth sits there. For most working people it is the majority — and none of it is controlled by the document they think of as their estate plan.
Jointly held property with survivorship rights is a third category, passing automatically to the surviving owner regardless of either mechanism.
Where stale designations do damage
Divorce. Some states automatically revoke a spousal designation on divorce; many do not, and federal law governing workplace retirement plans complicates the picture further. The practical result is that ex-spouses do receive retirement accounts years after a divorce, and courts have upheld it because the form said what it said. Never assume a decree handled this. Update the forms.
Job changes. Each employer's plan has its own designation, set during onboarding when you were filling in a stack of paperwork and thinking about something else. Old accounts left with former employers keep whoever you named then.
A predeceased primary with no contingent. If your named beneficiary dies before you and there is no backup, the account typically falls into your estate — probate, delay, and often worse tax treatment for whoever eventually receives it.
Minor children named directly. Well-intentioned and usually a problem. Minors cannot receive accounts directly, so a court appoints someone to manage the money, and the child typically takes full control at the age of majority. A trust named as beneficiary handles this properly, though trusts as retirement account beneficiaries have their own distribution rules worth getting advice on. How to set up a will and living trust vs will cover the surrounding structure.
No designation at all. Defaults to the plan document or your estate. Neither is likely to be what you wanted.
Doing the audit
This is genuinely an afternoon's work and most people have never done it once.
List every account. Retirement accounts including old employers', IRAs, life insurance including employer-provided cover, annuities, HSAs, brokerage accounts, and bank accounts with payable-on-death instructions.
Log in and look at each one. Do not rely on memory. The designation is usually under beneficiaries or estate planning in the account settings.
Check for a contingent on every one. This is the most commonly missing piece, and it is the difference between a clean transfer and probate.
Confirm the details are current. Names change, and a designation with a wrong Social Security number or an outdated address causes delays even when the intent is clear.
Check percentages total 100. Splits that do not add up cause disputes.
Save confirmations. Keep a record of what each account says and when you checked.
Then repeat after any major life event, and put a recurring reminder somewhere for a periodic check. This information should live alongside your other account records — see digital estate planning for keeping that findable.
Common mistakes
- Assuming the will covers it. For the largest accounts, it usually does not.
- Naming your estate. Forces probate and often compresses distribution timing for heirs.
- No contingent beneficiary. One death out of order and the plan fails.
- Naming minors directly. Court involvement, then full control at majority.
- Never revisiting after divorce. The most damaging version of this mistake.
- Forgetting old employers' accounts. They still hold money and still have forms.
- Not telling anyone. Beneficiaries who do not know an account exists may never claim it.
FAQ
Does my will override a beneficiary designation?
No. For accounts with designations, the form controls. This is the single most important thing to understand here, and it surprises most people.
What if I name someone and change my mind?
Update the form with the provider. Most allow it online in minutes, and it takes effect on their processing. A change written into a will does not affect the account.
Should I name a trust?
Sometimes — particularly with minor children or complex circumstances. Trusts as retirement account beneficiaries carry their own distribution rules that can be less favourable than naming a person, so this is a case for professional advice rather than a default.
What about spousal rights?
Workplace retirement plans generally require spousal consent to name someone other than a spouse. IRAs typically do not, and community property states add their own layer. Rules vary; check for your accounts and state.
How does this affect inherited account taxes?
Substantially. Distribution timelines differ between spouses, minor children, and other beneficiaries, and the tax consequences follow from that — see inherited IRA rules.
Where to go next
For the documents that govern everything without a designation, read how to set up a will and living trust vs will. For what your beneficiaries will face on the tax side, inherited IRA rules, and for making all of it findable, digital estate planning.
This is general information, not legal or financial advice. Rules on spousal rights, divorce revocation, and inherited account distributions vary by state and account type; consult a qualified professional for your situation.