Can my children inherit my Solo 401(k)?

The answer is yes, but exactly how they inherit those assets depends on several important factors, including your beneficiary designations, whether you are married, federal tax laws, and the choices your beneficiaries make after your death.

Many people spend decades building a retirement account but only a few minutes completing their beneficiary forms. Unfortunately, those few minutes can determine whether your retirement assets are distributed exactly as you intended—or end up causing unnecessary legal complications.

In this guide, we'll explain how Solo 401(k) inheritance works, what happens when children are named as beneficiaries, why beneficiary forms are more important than a will, and what the term "per stirpes" means when completing your beneficiary designation.

Understanding the Solo 401(k)

A Solo 401(k) is a qualified retirement plan designed specifically for self-employed individuals and business owners with no full-time employees other than themselves and, if applicable, their spouse.

Like traditional employer-sponsored 401(k) plans, a Solo 401(k) allows participants to save for retirement while enjoying valuable tax advantages. Over time, these accounts can grow substantially through contributions, investment gains, rental income, private lending, precious metals, and many other permitted investments.

Because these accounts often represent one of the largest assets a family owns, planning for what happens after death is an essential part of retirement planning.

Yes—Your Children Can Inherit Your Solo 401(k)

If your children are listed as beneficiaries, they can inherit your Solo 401(k).

However, inheriting the account does not necessarily mean they receive one large check immediately.

Instead, inherited retirement accounts are governed by federal tax rules that determine how and when distributions must occur.

Several factors affect the outcome:

• Whether you were married

• Whether your spouse survives you

• Whether your children are primary or contingent beneficiaries

• The beneficiary elections you completed

• Current federal inheritance and retirement distribution rules

Proper beneficiary planning ensures your wishes are carried out.

Your Beneficiary Form Controls Everything

One of the biggest misconceptions in estate planning is believing that a will determines who receives retirement assets.

In reality:

Your Solo 401(k) beneficiary designation generally controls who inherits the account—not your will.

If your beneficiary form says your daughter receives 100% of the account, that is generally how the plan distributes the assets, even if your will says something different.

This is why reviewing beneficiary forms periodically is so important.

Primary vs. Contingent Beneficiaries

Most beneficiary forms ask you to designate:

Primary Beneficiary

This is the first person entitled to receive the account after your death.

Examples include:

• Your spouse

• One child

• Multiple children

• A trust (depending on your estate planning goals)

• A charity

Contingent Beneficiary

A contingent beneficiary only inherits if all primary beneficiaries die before you or disclaim the inheritance.

Example:

Primary Beneficiary:

• Spouse – 100%

Contingent Beneficiaries:

• Son – 50%

• Daughter – 50%

If your spouse survives you, your children receive nothing immediately because the spouse inherits the account.

If your spouse passes away before you, then your children inherit according to the contingent designation.

What Happens If You're Married?

Federal law provides important protections for spouses.

For most Solo 401(k) plans, a spouse is generally the automatic primary beneficiary unless the spouse properly consents to another designation, if required by the plan and applicable law.

If you wish to leave the account directly to your children instead of your spouse, be sure to review your plan documents and applicable spousal consent requirements.

Naming Multiple Children

You may divide your account however you choose.

Example:

Emily — 50%

Jacob — 25%

Sarah — 25%

Or:

Emily — 33⅓%

Jacob — 33⅓%

Sarah — 33⅓%

You have flexibility to allocate percentages based on your wishes.

What Happens If One Child Dies Before You?

This is where beneficiary designations become especially important.

Suppose:

• Child A

• Child B

• Child C

Each receives one-third.

Now imagine Child B dies before you.

What happens to that share?

The answer depends on how you completed your beneficiary form.

This is where the term Per Stirpes becomes extremely important.

What Does "Per Stirpes" Mean?

"Per stirpes" is a Latin phrase that means "by branch" or "by family line."

It determines what happens if one of your named beneficiaries dies before you.

Example Without Per Stirpes

You have three children:

• John

• Sarah

• Michael

Each receives one-third.

John dies before you and leaves two children of his own.

If your designation is not per stirpes (and your plan provides no alternate rule), John's share may instead be redistributed among the surviving beneficiaries or handled according to the plan's default provisions.

Result:

• Sarah receives more

• Michael receives more

• John's children receive nothing through John's share

Example With Per Stirpes

Same family.

John dies before you.

John had two children.

Because your designation says Per Stirpes, John's one-third share passes down to his children, who inherit John's portion equally.

Result:

Sarah — 1/3

Michael — 1/3

John's Child #1 — 1/6

John's Child #2 — 1/6

John's family branch continues to inherit exactly as intended.