Article
There's a document controlling a large share of your wealth that you almost certainly haven't read since the day you signed it.
It isn't your will. It's the beneficiary designation form attached to each retirement account and insurance policy, and it outranks your will completely. If the form says one thing and your will says another, the form wins.
Which means an afternoon spent checking them is worth more than most of what people worry about in estate planning.
What Beneficiary Designations Actually Control
More than most people assume:
|
Asset |
Passes by |
Does your will control it? |
|
401(k), 403(b), 457 |
Beneficiary designation |
No |
|
Traditional and Roth IRA |
Beneficiary designation |
No |
|
Life insurance |
Beneficiary designation |
No |
|
Annuities |
Beneficiary designation |
No |
|
HSA |
Beneficiary designation |
No |
|
Bank or brokerage with POD/TOD |
Payable/transfer on death |
No |
|
Jointly owned property |
Right of survivorship |
No |
|
Everything else |
Your will |
Yes |
Look at how much of that column says no. For most households, the majority of transferable wealth passes outside the will entirely, which is why a carefully drafted will can coexist with an estate that goes somewhere nobody intended.
Six Things That Go Wrong
1. The Ex-Spouse Who Is Still Named
The most common and most painful. A divorce decree doesn't automatically change a beneficiary form. If your former spouse is still named on an old 401(k), they will generally receive it, and your current spouse will have no recourse. This happens regularly and it's entirely preventable.
2. Nobody Is Named at All
The account goes to the plan's default, often your estate, which means probate. Slower, public, potentially contested, and usually worse for tax because the favorable stretch options may be lost.
3. A Deceased Person Is Still Listed
If your primary beneficiary has died and no contingent is named, you're effectively in the same position as naming nobody.
4. No Contingent Beneficiary
Naming a primary and stopping is only half the job. The contingent is what catches a simultaneous accident or a primary who predeceases you.
5. A Minor Child Is Named Directly
Minors generally can't inherit directly. A court will appoint someone to manage it, and at the age of majority they receive the lot outright, which is rarely what anyone intended for a large sum.
6. Old Accounts Nobody Remembers
The 401(k) from three employers ago, still sitting where you left it, with a form you filled out in 2004 without much thought. These are the accounts that produce the worst surprises.
Primary, Contingent, and How the Split Works
- Primary beneficiaries inherit first. You can name several and assign percentages, which must total 100.
- Contingent beneficiaries inherit only if no primary survives you. Skipping this is the most common gap.
- Per stirpes means a deceased beneficiary's share passes down to their children. Per capita means it's redistributed among the surviving named beneficiaries instead.
- That distinction matters enormously if you have adult children with children of their own, and most people have never been asked which they want.
If you want your grandchildren to inherit their parent's share should something happen to your child, you generally need per stirpes, and you need the form to say so.
The Tax Consequence Nobody Explains
Who you name changes what they receive after tax, sometimes dramatically.
Per IRS rules, for account owners who died after 31 December 2019, most designated beneficiaries must distribute the entire balance within ten years. There are exceptions for what the IRS calls eligible designated beneficiaries:
- A surviving spouse
- A minor child of the account owner
- A disabled or chronically ill person
- A person not more than ten years younger than the owner
For everyone else, most commonly adult children, the ten-year clock applies. That means a traditional IRA lands as ten years of taxable distributions, frequently during their highest-earning decade, at their marginal rate rather than yours. IRS guidance on beneficiary distributions and Publication 590-B set out the mechanics.
One added wrinkle: if the original account owner had already started required minimum distributions before death, most beneficiaries subject to the ten-year rule must also take annual distributions in years one through nine, not just empty the account by year ten. The IRS finalized this requirement in 2024, effective for distributions beginning in 2025. Confirm the specifics with a tax professional before assuming a lump-sum-at-year-ten approach.
Two planning implications follow. A Roth account is a materially better thing to leave a high-earning adult child, since those ten years are tax-free, which is one of the stronger arguments for the Roth conversion window. And if you're weighing what to leave whom, the inherited IRA tax calculator shows what a beneficiary would actually owe.
Spouses Have Options Nobody Else Gets
A surviving spouse who inherits a traditional IRA can generally:
- Treat it as their own by designating themselves as owner.
- Roll it into their own IRA.
- Remain a beneficiary and take distributions under the beneficiary rules.
Each has different consequences for timing and required distributions, and the right choice depends on the ages involved. It's worth knowing these options exist before the moment they're needed, because the decision often gets made quickly and in distress.
The Five-Minute Audit
- List every account with a designation: each 401(k) including old employers, every IRA, life insurance, annuities, HSA, and any bank or brokerage account with a POD or TOD instruction.
- Log in to each and find the current named beneficiaries. Don't rely on memory or on what you think you did.
- Check every primary is alive, correctly spelled, and still who you want.
- Check a contingent is named on every single one.
- Check the percentages total 100 and the per stirpes or per capita choice matches your intention.
- Download or screenshot each confirmation and keep them in one place.
Most people find at least one thing wrong. The most common finds are a missing contingent and an old employer plan nobody had thought about in years.
Three Situations That Need More Than a Form
For most people the audit above is the whole job. Three circumstances warrant a conversation with an estate attorney rather than a login session:
1. A Blended Family
Naming a current spouse as sole beneficiary means your children from a previous marriage inherit only what that spouse later chooses to leave them. That may be exactly what you intend, and it may not, but it should be a decision rather than a default. Trusts exist largely to solve this, and the trade-off is complexity.
2. A Beneficiary Who Cannot Manage Money
Whether because of age, disability, addiction or a difficult marriage. A lump sum arriving with no structure can do real harm, and a trust naming conditions is usually the answer. Naming a trust as a retirement account beneficiary has specific tax consequences that need getting right.
3. A Beneficiary Receiving Means-Tested Benefits
An inheritance can disqualify someone from disability or other assistance overnight. A special needs trust preserves eligibility while still providing for them. This is the situation where a well-meant designation does the most damage.
The common thread: in all three, the simple form gives you a binary outcome when the situation needs a conditional one. That's what trusts are for, and it's the one part of this subject genuinely worth paying a professional to get right.
Six Events That Should Trigger a Review
- Marriage or divorce, yours or a beneficiary's.
- A birth or adoption in the family.
- A death, whether a beneficiary or someone whose passing changes your intentions.
- Changing employer, which usually means a new plan and sometimes an orphaned old one.
- A move between states, since property and spousal rules vary.
- Any significant change in an account's size, since what was a modest legacy can become a large one.
Between triggers, once every three years is a reasonable rhythm. Put it in the calendar next to something you already do annually.
Where This Sits in the Plan
Legacy is one of the five Lenses Retirelens plans across, and it's the one people defer longest because nothing bad happens in the year you skip it.
It also connects to the numbers side of the plan: who inherits which account changes the income and tax picture modeled in the Finance Lens, so it is worth reviewing both together.
The work itself is small. Naming the right people takes an afternoon. What makes it valuable is that the alternative, the wrong person inheriting or an estate stuck in probate, is expensive, public and impossible to fix afterwards.
If you want a structured version rather than a checklist, the legacy planning questionnaire walks through who this plan is actually for, and the legacy calculator shows what you might realistically leave after spending and giving.
Frequently Asked Questions
Do beneficiary designations override a
will?
Yes. For retirement accounts, life insurance, annuities and accounts with
payable-on-death instructions, the designation controls regardless of what your
will says.
What happens if I don't name a
beneficiary?
The account typically goes to the plan's default, often your estate, which
means probate. That's slower and public, and it can cost your heirs favorable
tax treatment.
Does divorce automatically remove my
ex-spouse?
Generally no. Unless you update the form, an ex-spouse named on an old account
will usually inherit it. This is the single most common and most damaging
oversight in this area.
What is the difference between primary
and contingent?
Primary beneficiaries inherit first. Contingent beneficiaries inherit only if
no primary survives you. Naming a primary without a contingent is the most
frequent gap.
What does per stirpes mean?
A deceased beneficiary's share passes down to their children. Per capita
instead redistributes it among the surviving named beneficiaries. The
difference matters if your children have children.
What is the 10-year rule?
For owners who died after 31 December 2019, most designated beneficiaries must
empty an inherited retirement account within ten years. Surviving spouses,
minor children of the owner, disabled or chronically ill people, and those not
more than ten years younger are treated differently.
Should I name my children or a trust?
It depends on their ages, circumstances and whether you want control over
timing. Trusts add flexibility and complexity, and naming one as a retirement
account beneficiary has specific tax consequences. Worth discussing with an
estate attorney.
Can I name a minor?
You can, but minors generally can't inherit directly. A court appoints someone
to manage the funds, and the child receives everything outright at the age of
majority, rarely what anyone intended for a large sum.
Is a Roth better to leave to my
children?
Often, yes. A non-spouse beneficiary still faces the ten-year rule, but Roth
distributions are tax-free, whereas a traditional account produces ten years of
taxable income likely in their peak earning years.
How often should I review?
Every three years, and immediately after any marriage, divorce, birth, death,
job change or move. Between those, the calendar reminder is what makes it
actually happen.
Where do I find my current designations?
Log in to each plan or policy provider directly. Don't rely on memory or
paperwork from when the account was opened, because forms are sometimes updated
or migrated during plan changes.
The Highest Return on an Afternoon
Very little in financial planning gives you this much for this little effort. No fees, no market risk, no forecasting, just checking that the names on a handful of forms are the names you actually intend.
The reason it gets skipped is that nothing bad happens in the year you don't do it. The consequences all arrive at once, later, to people who can't fix it.
Block out an afternoon. Log in to every account. Check the forms.
Legacy
is one Lens
of five. Start
the legacy planning questionnaire,
it begins with who this plan is actually for, which is where the rest follows
from.
Related Articles
- The Roth Conversion Window : why the account type you convert now changes what a beneficiary owes later.
- Do You Actually Need an Annuity : how an annuity beneficiary designation works alongside the accounts covered here.
- How Much Tax Will You Pay in Retirement : the broader tax picture this beneficiary review feeds into.
The information provided on Retirelens is for educational and informational purposes only and does not constitute financial, legal, tax, or investment advice. You should consult qualified professionals before making any financial or estate-planning decisions. Beneficiary rules, tax treatment and state property law vary and change. This article is educational and is not legal or tax advice. Review your designations with an estate attorney and a tax professional, particularly if a trust, a blended family or a business interest is involved.
