If you’ve been itching to tap into real estate with retirement funds but weren’t sure if it was possible — or even legal — the answer is yes. A Solo 401(k) is one of the most flexible retirement accounts available for self-employed individuals, and it can open the door to a variety of real estate investment opportunities.
Watch: Breakdown on how to invest a solo 401k in real estate
In this post, we’ll break down:
-
What kinds of real estate investments are allowed in a Solo 401(k)
-
IRS prohibited transaction rules you must avoid
-
Debt-financing and non-recourse loans inside a Solo 401(k)
-
The difference between custodian-controlled and checkbook control Solo 401(k) plans
-
Common real estate purchase methods using Solo 401(k) funds
-
Eligibility rules for opening a Solo 401(k)
Real Estate Investments Allowed in a Solo 401(k)
A properly structured Solo 401(k) can hold a wide range of real estate investments, including:
-
Rental properties (residential or commercial)
-
Farmland
-
Private real estate funds or syndications
-
Vacant land
-
Other physical real estate assets
Whether you’re buying a single-family home to rent, a commercial building, or investing in a real estate syndicate, the property is titled in the name of your Solo 401(k) trust. All rental income and sale proceeds flow back to the plan, maintaining tax-deferred (or tax-free for Roth funds) status.
Avoiding Prohibited Transactions
IRS rules prohibit certain transactions that could jeopardize your Solo 401(k)’s tax benefits. For example:
-
You cannot buy a property you or certain family members (spouse, children, parents) already own.
-
You cannot sell a property from your Solo 401(k) to yourself or these disqualified persons.
-
All expenses related to the property (repairs, taxes, insurance) must be paid from Solo 401(k) funds, not personal funds.
Using Debt-Financing: Non-Recourse Loans
Your Solo 401(k) can use non-recourse loans to finance property purchases.
-
The loan is made to the Solo 401(k) plan — not you personally.
-
In the event of default, the lender’s only recourse is the property itself.
-
Most lenders will finance 60–70% of the property’s value.
-
Loan payments must be made from Solo 401(k) funds.
Custodian vs. Checkbook Control Solo 401(k)
Not all Solo 401(k) providers allow real estate investing. Even among those that do, there are two main structures:
1. Custodian-Controlled
-
Assets and documents are held by a trust company.
-
You must request the custodian to release funds for each transaction.
-
Often involves transaction and holding fees.
2. Checkbook Control
-
You act as trustee of the plan and control the funds directly.
-
The plan’s bank or brokerage account is in your control, making transactions faster.
-
No transaction or holding fees.
Providers like My Solo 401k Financial offer checkbook control plans that allow for both traditional and alternative investments — plus benefits like the $1,500 startup tax credit.
Real Estate Purchase Methods with a Solo 401(k)
-
All-Cash Purchase – The Solo 401(k) pays 100% of the purchase price.
-
Debt-Financing – Use a non-recourse loan to supplement Solo 401(k) funds.
-
Tenancy in Common – Partner your Solo 401(k) with another investor (or even personal funds) to purchase property, dividing income and expenses according to ownership percentages.
Who Can Open a Solo 401(k)?
You must have self-employment income and no full-time W-2 employees (other than your spouse). Eligible businesses include:
-
Sole proprietorships (including freelancers and gig workers)
-
Partnerships
-
LLCs (taxed as sole proprietorship, partnership, or S corporation)
-
Corporations
Contribute to multiple 401k plans: Even if you participate in a 401(k) at your day job, you can open a Solo 401(k) for your side business and take advantage of features like the Mega Backdoor Roth strategy.
Final Thoughts
A Solo 401(k) can be a powerful vehicle for building a diversified retirement portfolio that includes real estate. With the right plan structure and a clear understanding of IRS rules, you can:
-
Generate rental income
-
Enjoy tax-deferred or tax-free growth
-
Avoid capital gains taxes on property sales within the plan
If you’re ready to explore real estate investing with your Solo 401(k), work with a provider experienced in both alternative investments and compliance to ensure your plan is set up for success.
