What happens if I don't name a beneficiary?

If no beneficiary is named, assets typically go to your estate and through probate. For retirement accounts, this can trigger immediate full taxation and lose the ability for beneficiaries to stretch distributions over time.

Does a will override a beneficiary designation?

No. Beneficiary designations override wills. If your 401(k) names your ex-spouse but your will leaves everything to your new spouse, your ex-spouse still gets the 401(k).

How often should I update beneficiary designations?

Review beneficiary designations after any major life event: marriage, divorce, birth of a child, death of a beneficiary. At minimum, review every 2-3 years to ensure they match your current wishes.

Can I name a minor child as beneficiary?

You can, but it creates complications. Minors can't legally manage assets, so a court-supervised guardianship may be required until they reach 18. A trust designated as beneficiary offers more control.

5 Common Beneficiary Designation Mistakes (And How to Avoid Them)

Why Beneficiary Designations Matter

Assets That Pass by Beneficiary Designation

Asset Type	Bypasses Will?
401(k) and 403(b)	Yes
IRA (Traditional and Roth)	Yes
Life insurance	Yes
Annuities	Yes
Pension plans	Yes
POD/TOD bank accounts	Yes
Brokerage TOD accounts	Yes
HSA	Yes

Key insight: These often represent the LARGEST part of your estate but are controlled by a simple form, not your will.

The Beneficiary Designation Hierarchy

Priority	What Happens
1. Named primary beneficiary	Receives assets
2. Named contingent beneficiary	Receives if primary is deceased
3. Default per plan rules	Often “estate”
4. Probate court	Distributes per will or state law

Mistake #1: Naming No Beneficiary

What Happens

Situation	Consequence
No beneficiary named	Assets go to estate
Estate receives retirement account	Full taxation may be required within 5 years
Estate goes through probate	Public, time-consuming, costly

Real-World Impact

Example: $500,000 IRA with no beneficiary

Named Beneficiary	No Beneficiary
Child inherits	Estate inherits
10-year distribution	5-year distribution
$50K/year (spread taxes)	$100K/year (higher taxes)
~$100K in taxes over time	~$175K+ in taxes

How to Avoid

Action	Details
Check every account	Request beneficiary forms
Name primary AND contingent	Always name backups
Keep records	Document who is named where

Mistake #2: Outdated Beneficiaries (The Ex-Spouse Problem)

What Happens

Situation	Consequence
Divorce occurs	Ex-spouse still named
Account holder remarries	New spouse NOT automatically beneficiary
Account holder dies	Ex-spouse receives assets
Will says “new spouse”	Doesn’t matter—designation wins

Legal Reality

Document	Controls?
Beneficiary designation form	YES
Will	No
Trust	No (unless named as beneficiary)
Divorce decree	Usually no*

*Some states have laws voiding ex-spouse designations, but protection varies and can be contested.

Famous Cases

Case	What Happened
Kennedy v. Plan Administrator (2009)	Supreme Court ruled ex-wife received 401(k) despite divorce decree
Egelhoff v. Egelhoff (2001)	State law voiding ex-spouse was preempted by federal ERISA

How to Avoid

Action	When
Update immediately after divorce	Within 30 days
Update after remarriage	Immediately
Get confirmation in writing	Save receipts
Review periodically	Every 2-3 years

Mistake #3: Naming Minor Children Directly

What Happens

Situation	Consequence
Child under 18 inherits	Minor can’t legally manage assets
Court involvement	Guardianship required
Court-supervised account	Until child turns 18
At 18, full access	No restrictions on spending

The Problem with Age 18

Age	Control
0-17	Court-appointed guardian manages
18	Full, unrestricted access
18-25	Statistically poor financial decisions

A 19-year-old with a $500,000 inheritance and no restrictions…

Better Alternatives

Option	How It Works	Best For
Trust as beneficiary	Trust controls distributions	Large sums
UTMA/UGMA account	Custodian manages until 18-25	Smaller sums
Adult guardian designation	Adult receives for child’s benefit	Simple situations
529 plan	Education-focused	Education funding

Trust Example

Instead of: “Primary beneficiary: Johnny Smith (age 5)”

Use: “Primary beneficiary: The Smith Family Trust dated 1/1/2024, for the benefit of Johnny Smith”

Trust terms might say:

1/3 at age 25
1/3 at age 30
1/3 at age 35

Mistake #4: Forgetting Contingent Beneficiaries

What Happens

Situation	Consequence
Primary beneficiary dies first	No backup named
Account holder dies later	Assets go to estate
Estate receives assets	Probate + tax consequences

Common Scenario

Year	Event
2010	John names wife Mary as beneficiary
2015	Mary passes away
2020	John forgets to update
2025	John dies, no beneficiary
Result	IRA goes to estate, not children

How to Avoid

Action	Details
Always name contingents	Even if unlikely needed
Name per stirpes	“My children, per stirpes”
Review when beneficiary dies	Update immediately

Per Stirpes Explained

Designation	If Child Predeceases You
“My children”	Deceased child’s share goes to surviving children
“My children, per stirpes”	Deceased child’s share goes to THEIR children

Mistake #5: Naming Your Estate

What Happens

Designation	Result
“My estate”	Probate required
“My estate” + IRA	Accelerated taxation
“My estate” + life insurance	Potentially taxable estate

IRA/401(k) Consequences

Beneficiary Type	Distribution Rule
Named person	10 years (SECURE Act)
Estate	5 years
Difference	5 fewer years to spread taxes

Life Insurance Consequences

Beneficiary	Estate Tax?
Named person	Not in estate
“My estate”	Included in estate

Example: $1M policy + $12M estate = $13M estate (over federal exemption)

When Estate Might Make Sense

Situation	Why
Equalizing inheritance	Small account to balance
Complex family situations	Trust already primary
Temporary placeholder	UPDATE IMMEDIATELY

How to Audit Your Beneficiaries

Step 1: Create an Inventory

Account	Institution	Current Primary	Current Contingent	Last Updated
401(k)	Fidelity	?	?	?
IRA	Vanguard	?	?	?
Life insurance	Northwestern	?	?	?
Pension	Employer	?	?	?
Bank accounts	Chase	?	?	?

Step 2: Request Current Designations

Method	Timeline
Online portal	Immediate
Phone call	Same day
Written request	1-2 weeks
HR (employer plans)	1-2 weeks

Step 3: Update as Needed

Account Type	How to Update
401(k)/403(b)	Through employer or plan website
IRA	Through custodian website/form
Life insurance	Contact insurance company
Bank POD	Bank branch or online

Step 4: Document Everything

What to Save	Where
Confirmation letters	Physical and digital
Form copies	With estate documents
Date updated	Spreadsheet

Checklist: Life Events That Require Updates

Event	Updates Needed
Marriage	Add spouse (consider existing children)
Divorce	Remove ex-spouse immediately
Birth of child	Add child/update percentages
Death of beneficiary	Remove, update contingent to primary
Remarriage	Update for blended family
Child reaches adulthood	Consider changing from trust to direct
Significant wealth change	Review estate tax implications

Key Takeaways

Beneficiary designations override your will — Update the forms, not just the will
Ex-spouses can inherit — Divorce doesn’t automatically change anything
Don’t name minors directly — Use trusts for control and protection
Always name contingent beneficiaries — Per stirpes covers grandchildren
Never name “my estate” — Creates probate and tax problems
Audit annually — Set a calendar reminder every year

Beneficiary errors are among the most costly planning mistakes — visit the inheritance hub for a complete guide. Read will vs. trust to understand which legal document governs your accounts, and putting a house in trust for property-specific planning.

Written by WealthVieu

WealthVieu researches and writes data-driven personal finance guides using primary sources including the IRS, Bureau of Labor Statistics, Federal Reserve, and Census Bureau.

The content on Wealthvieu is for informational purposes only and should not be considered financial, tax, or investment advice. Consult a qualified professional before making financial decisions. Full disclaimer · Editorial policy