Freeze My Solo 401k Plan

Do I have to keep my business open to keep my solo 401K plan?

Yes, generally, it would be permissible to freeze a 401(k) plan, including a solo 401k. That said, there may be additional issues that would need to be considered, depending upon the specific situation, i.e. the employer has hired employees, the employer is closing its business, etc.

A 401(k) plan including a solo 401(k) must have a plan sponsor (even a frozen plan); if the self-employed business no longer exists, the plan would need to be terminated.

Note that the IRS indicated (informally) that a legally constituted”dormant” entity could sponsor a plan. See below.

From the 1998 ASPA meeting:

12. Regarding “orphan plans”, must a plan sponsor be actively engaged in
business? e.g., the “Houston Letter” which defined “employer” by reference
to FICA wages ($1500/quarter of payroll). Can a dormant (but legally
existing), corporation continue its sponsorship of a plan (with funds held
for terminated employees only)? Is there any difference with regard to a
sole proprietor who is no longer producing any revenue in the sole
proprietorship?

IRS: The business must be in existence, but there is no requirement for
“active” engagement in business. A legally constituted “dormant” entity may
sponsor a plan.

There is NO IRS deadline that forces you to roll over or close a Solo 401(k) simply because you stopped self-employment temporarily.

A Solo 401(k) can be frozen indefinitely as long as:

The business still exists, and
You don’t formally terminate the plan

This is very different from employer-sponsored W-2 plans.

How the IRS Looks at This

From the IRS perspective (Internal Revenue Service):

What matters

Whether the plan is formally terminated
Whether the business still exists
Not whether you currently have self-employment income in a given year

What does not matter

That you moved to W-2 employment
That the business is dormant
That you make no contributions for several years

“Frozen” Solo 401(k): Perfectly Allowed

A Solo 401(k) may be inactive/frozen when:

You have no net self-employment income
You make zero contributions
You are working entirely as a W-2 employee elsewhere

This can last:

1 year
5 years
10+ years

There is no maximum dormancy period under IRS rules.

You can later restart self-employment and resume contributions without reopening or restating the plan.

When a Rollover Is Required

A rollover is only required after plan termination, not inactivity.

A Solo 401(k) is considered terminated when:

You formally terminate the plan, OR
The business is permanently closed with no intent to resume

If you do terminate:

Timing Rule

Assets must be distributed or rolled over within a reasonable period
IRS guidance typically treats ~12 months as reasonable (not a hard deadline, but a practical standard)

When You Should Consider Closing

You’d typically terminate and roll over only if:

You are certain self-employment is permanently over, AND
You want to consolidate into:
- A rollover IRA, or
- A new employer’s 401(k)

This is a choice, not a requirement.

Common Mistakes to Avoid

Assuming W-2 employment forces closure
Rolling over prematurely and losing plan features
Terminating when future consulting is likely
Confusing “no contributions” with “plan termination”

Summary Table

Scenario	IRS Action Required
W-2 job replaces self-employment	❌ None
Business temporarily inactive	❌ None
No contributions for years	❌ None
Plan formally terminated	✅ Rollover/distribution
Return to contracting later	✅ Resume contributions

Conclusion

You can keep your Solo 401(k) open and frozen for years
No IRS timing rule forces a rollover
Only plan termination starts the rollover clock
Your plan preserves future self-employment flexibility

In sum, you will want to coordinate with your CPA or legal advisor.

No Longer Self-Employed & Transfer to IRA LLC QUESTION:

Can we transfer the self-directed solo 401k plan to an IRA LLC if we are no longer self-employed or retire?

ANSWER:

If you are retiring from your self-employed business or no longer self-employed, you can certainly wind down the solo 401(k) and rollover the funds and assets to an IRA LLC. This would entail filing a final form 5500 EZ as well as issuing a 1099R to report the rollover, both of which we will handle as part of our services.

Are all of the funds and assets in a pretax sub-account of the solo 401(k)? In that case, you would simply need one traditional IRA for your benefit at an IRA custodian which will allow you to invest in an LLC.
Your wife could also transfer her funds to an IRA and then invest in the same LLC. If all of her funds are pretax, she would simply transfer those funds to a traditional non-Roth IRA for her benefit at an IRA custodian which will allow her to invest in an LLC.
If you invest in the same LLC, the LLC will have two members which means that you will need to file partnership tax returns (e.g. form 1065 at the federal level). Moreover, this means that each of you will be investing your funds in the same investment (i.e. since of all the investments will be done at the LLC level) where the ownership will be in proportion to the amount of retirement funds invested in the LLC.
With regards to the real estate owned by the solo 401(k), this will need to be transferred in kind to the IRA and then contributed to the new LLC which means that the title will need to be changed twice (i.e. first from the solo 401(k) to the IRA custodian and then from the IRA custodian to the LLC). Please note that if the real estate is owned by the LLC and your wife’s IRA is an owner of the LLC she will effectively own part of the real estate through her IRA.
If you want to avoid shared ownership and pooling your funds for all investments, you would each want to open your own separate IRA LLC’s. This would also avoid having to file a form 1065, etc since each LLC would be a single-member disregarded entity.