Solo 401(k) for Real Estate Investors

If you're a self-employed real estate investor curious about using retirement money to buy rentals, the honest answer is: a Solo 401(k) (also called a self-employed 401(k) or one-participant 401(k)) can hold real estate directly and offers enormous contribution limits — but the "prohibited transactions" and "self-dealing" rules are strict, and violating them can disqualify the whole plan. Not a beginner move.

Okoniq Property Hub stores property records separately per legal entity so a self-directed retirement account's holdings stay clearly segregated from your personal portfolio.

Who qualifies for a Solo 401(k)?

The Solo 401(k) is for a business owner (usually sole proprietor, LLC, or S-corp) with:

• No employees other than a spouse. One employee (other than a spouse) disqualifies the plan.
• Self-employment income. W-2 income alone doesn't qualify — you need Schedule C, Schedule E (from a partnership), or S-corp K-1 income.

Rental income on Schedule E doesn't qualify by itself — it's passive. But if you have a real estate business (property management, flipping, brokerage, development), that's active earned income and qualifies.

What are the contribution limits?

Two contribution "sides" in a Solo 401(k):

• Employee elective deferral: up to $23,500 for 2025 ($31,000 if age 50+, subject to annual IRS updates)
• Employer profit-sharing: up to 25% of compensation (or ~20% of self-employment net earnings after adjustments)

Combined 2025 limit: $70,000 ($77,500 with catch-up), or 100% of compensation, whichever is less.

For a self-employed individual generating $200K of net earnings, that's dramatically more than a Traditional IRA's $7K limit or a SEP-IRA's ~$67K limit.

Full mechanics are in IRS Publication 560 (Retirement Plans for Small Business).

Can it hold real estate directly?

Yes — but you need a self-directed Solo 401(k). Not every custodian offers self-directed accounts; specialized providers like Rocket Dollar, uDirect IRA, and Solera National Bank do.

The 401(k) becomes the legal buyer of the rental. All income and expenses flow through the 401(k) — rent goes into the 401(k) bank account, repairs come from it. You don't touch the money personally.

What are prohibited transactions?

The Solo 401(k) cannot transact with disqualified persons — which includes:

• You (the plan owner)
• Your spouse
• Your parents, grandparents
• Your children, grandchildren
• Fiduciaries and service providers of the plan

Prohibited transactions include:

• Buying a property from yourself or family
• Selling a plan-owned property to yourself or family
• Renting a plan-owned property to yourself or family
• Personally working on the property for free (sweat equity is disallowed)
• Using plan money to secure a personal loan
• Living in a property owned by the plan

Any prohibited transaction can disqualify the entire plan — retroactive taxation on the full plan balance, plus a 15% excise tax, plus a 100% excise tax if uncorrected. This is why real estate in a 401(k) needs experienced legal + tax counsel.

What about mortgages?

The plan can borrow to buy real estate — but ONLY with a non-recourse loan, where the lender's only remedy on default is the property itself (not the plan or plan owner). Fewer lenders offer these; rates are slightly higher.

Non-recourse debt in a 401(k) may trigger UBIT (unrelated business income tax) on the leveraged portion of rental income. Complex; talk to a CPA who does self-directed retirement accounts.

When does it make sense?

For most small landlords: not really. The complexity, custodial fees ($300-$1,500/year), lender availability, and prohibited-transaction risk usually outweigh the tax benefits over standard rental ownership.

It shines for:

• High-earning self-employed who've maxed traditional retirement contributions
• Flippers using retirement money for short-hold investments (though this generates UBIT on rehabs classified as dealer activity)
• Long-hold rental investors with no need to touch the property or income personally for 20+ years

Store plan records separately

Retirement-plan-owned property records must stay legally distinct from personal-owned property. Okoniq Property Hub supports multi-entity setups so each property's records live under the right legal owner (personal, LLC, 401k trustee). Related: 1031 exchanges for small landlords, QBI deduction for rental owners, real estate professional status, and the Taxes & Accounting hub.

Frequently asked questions

Can I take a loan from my Solo 401(k)?

Yes, up to $50,000 or 50% of the account balance, whichever is less. The loan must be repaid within 5 years with quarterly payments, at a market interest rate. This can be a source of down-payment capital for personal real estate purchases (not plan purchases).

Can I use a Roth Solo 401(k) for real estate?

Yes — the employee elective portion can be Roth (post-tax). Roth funds bought real estate that appreciates and generates rental income grows tax-free forever. Attractive but hits the same prohibited-transaction rules.

What if I already have a rental — can I sell it to my Solo 401(k)?

No — that's a prohibited transaction (transaction between plan and disqualified person). You cannot swap ownership between yourself and your Solo 401(k).

Not tax advice. Self-directed retirement plans holding real estate are one of the most complex areas of retirement law — work with a specialized attorney + CPA before setting one up. Okoniq Property Hub keeps property records organized regardless of ownership structure. Get started free.