Investing Retirement Funds in Real Estate: IRA and 401(k) Rules

You can invest retirement funds in real estate, but only through an account structure that permits it and only under strict rules about who can benefit from the property. A self-directed IRA (SDIRA) or a Solo 401(k) can own residential rentals, commercial buildings, or raw land directly. The Internal Revenue Code doesn’t prohibit real estate in a retirement account; it only bars a short list of assets like life insurance and collectibles. What trips people up isn’t the purchase itself. It’s what happens after, when a family member uses the property, or the owner picks up a paintbrush, or a loan gets personally guaranteed. Any of those can unwind the account’s tax status in a single stroke.

Accounts That Can Hold Real Estate

Most brokerages restrict IRAs and 401(k)s to stocks, bonds, and mutual funds. That’s a business decision, not the law. To hold real estate, you need a custodian that handles alternative assets.

A Self-Directed IRA works like a traditional or Roth IRA for tax purposes, but permits real property. The IRA owns the property, not you. Annual contribution limits for 2026 are $7,500, with a $1,100 catch-up at age 50 or older.1Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500 That’s far short of a purchase price, so most real estate SDIRAs are funded by rolling over an existing retirement account.

A Solo 401(k) is available to self-employed individuals and business owners with no full-time employees. The 2026 employee deferral limit is $24,500, and employer profit-sharing contributions stack on top.1Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500 For anyone planning to use financing, the Solo 401(k) also has a tax advantage that an IRA doesn’t, discussed further down.

If your money is in an employer 401(k) and you’re still working there, you generally can’t roll it out. The IRS limits 401(k) distributions to specific events: leaving the job, reaching age 59½, disability, or a qualifying hardship. Hardship distributions can’t be rolled over at all.2Internal Revenue Service. 401(k) Resource Guide – Plan Participants – General Distribution Rules Once you’ve separated or hit 59½, request a trustee-to-trustee transfer. Taking a check to your personal account triggers withholding and starts a 60-day clock.

Who Can’t Touch the Property

This is where real estate retirement accounts most often fall apart. Internal Revenue Code Section 4975 bars transactions between a retirement plan and “disqualified persons.”3Office of the Law Revision Counsel. 26 U.S. Code 4975 – Tax on Prohibited Transactions The IRS defines those as the account owner, spouse, parents, grandparents, children, grandchildren, spouses of those family members, and entities they control.4Internal Revenue Service. Retirement Topics – Prohibited Transactions

None of those people can buy from, sell to, lease, or use the property. Your IRA-owned rental can’t double as your vacation home. Your adult child can’t live there, even at market rent. You can’t run your business out of an IRA-owned commercial building. You also can’t provide labor yourself. No repairs, no painting, no landscaping done by you or a disqualified person. All work must go to unrelated third-party contractors, paid from the retirement account.

Money flow follows the same logic. Every dollar spent on the property (earnest money, inspections, closing costs, taxes, insurance, repairs) has to come from the account. Every dollar of rent goes back into the account. Mixing personal money in either direction is a prohibited transaction.

What a Mistake Actually Costs

The penalty for a prohibited transaction depends on the account type, and the gap between the two is enormous.

For an IRA, the account stops being an IRA as of the first day of the taxable year the violation occurred. The IRS treats the entire balance as distributed to you on January 1 of that year at full fair market value.5Office of the Law Revision Counsel. 26 USC 408 – Individual Retirement Accounts You owe income tax on the full amount, plus a 10% early withdrawal penalty if you’re under 59½.4Internal Revenue Service. Retirement Topics – Prohibited Transactions On a $400,000 property, that easily reaches six figures.

For a qualified plan like a Solo 401(k), the structure is different. The disqualified person who participated owes a 15% excise tax on the amount involved for each year the violation remains uncorrected.3Office of the Law Revision Counsel. 26 U.S. Code 4975 – Tax on Prohibited Transactions If it isn’t corrected within the taxable period, the tax jumps to 100% of the amount involved. Correction means undoing the transaction as fully as possible without leaving the plan worse off financially.6Internal Revenue Service. Retirement Topics – Tax on Prohibited Transactions Painful, but not the total wipeout an IRA faces.

How the Purchase Actually Works

The buyer on the purchase contract is the retirement account, not you. Titling follows the custodian’s required format, something like “ABC Custodian FBO [Your Name] IRA.” Signing in your own name can strip the transaction of its tax-advantaged status.

The custodian reviews and signs the purchase agreement, addendums, and closing documents on behalf of the account. All funds for the acquisition come from the account. After closing, the deed is recorded in the name of the retirement account, and the custodian holds the original documents. From that point, the property is a plan asset. Income flows in, expenses flow out, and neither touches your personal accounts.

Some investors use a checkbook-control LLC to speed things up: the IRA funds an LLC, and you serve as its non-compensated manager, writing checks without waiting on custodian approval for every transaction. Faster access to funds doesn’t change the prohibited transaction rules. Every decision still has to comply with the same restrictions.

Financing With Non-Recourse Loans

Retirement accounts can borrow to buy property, but only through non-recourse loans. The lender’s only collateral is the property itself. You cannot personally guarantee the loan, and the IRA cannot secure a personal debt.4Internal Revenue Service. Retirement Topics – Prohibited Transactions

Because lenders can’t come after you if the IRA defaults, they compensate with larger down payments and stricter underwriting. Typical down payments run 35% to 55% of the purchase price, and lenders usually want net operating income to exceed debt service by 20% to 25%. Interest rates tend to run higher than conventional mortgages. Down payment and every loan payment must come from the account.

Taxes You Can Owe Inside the Account

Retirement accounts are generally tax-exempt, but two situations create a tax bill while the property still sits inside the plan.

Unrelated Business Taxable Income

Under IRC Sections 511 through 514, income from an active trade or business held inside a retirement account is subject to Unrelated Business Taxable Income (UBTI) tax. Ordinary rental income from a tenant usually doesn’t trigger it. Hotel-style operations with significant services to occupants can cross the line into active business income.

Unrelated Debt-Financed Income

When an account uses a loan to buy property, a proportional share of the income becomes taxable as Unrelated Debt-Financed Income (UDFI). If the IRA put 40% down and financed 60%, roughly 60% of net rental income and any capital gain is taxable.7Office of the Law Revision Counsel. 26 U.S. Code 514 – Unrelated Debt-Financed Income That income is taxed at trust and estate rates, which in 2026 hit the top marginal rate of 37% on income above $16,000.8Internal Revenue Service. 2026 Form 1041-ES The trust rate structure compresses the brackets, so even modest leveraged rental income can face high marginal rates.

Once total UBTI in the account reaches $1,000, the custodian must file IRS Form 990-T and pay the tax from the retirement account’s funds.

The Solo 401(k) UDFI Exemption

Under IRC Section 514(c)(9), qualified trusts under Section 401 (which includes Solo 401(k) plans) are exempt from UDFI on real property.9Office of the Law Revision Counsel. 26 USC 514 – Unrelated Debt-Financed Income A Solo 401(k) can use a non-recourse loan, buy a rental, and collect 100% of the rental income without owing UDFI on the leveraged portion. IRAs do not qualify.

The exemption has conditions. The purchase price must be fixed at acquisition. Loan payments can’t depend on the property’s income or profits. The property can’t be leased back to the seller or a related party, and the seller can’t also be the lender.9Office of the Law Revision Counsel. 26 USC 514 – Unrelated Debt-Financed Income Violate any of them and the exemption disappears. For an eligible investor who plans to borrow, this tax difference alone can make the Solo 401(k) the better vehicle.

Annual Valuations

Your custodian must report the fair market value of each asset in your IRA to the IRS every year on Form 5498 by May 31.10Internal Revenue Service. Form 5498 – IRA Contribution Information For real estate, that job falls on you. Custodians typically accept a comparable property analysis, a broker price opinion, or a formal appraisal. A county tax assessment alone usually isn’t enough because those figures lag the market.

An inaccurate valuation isn’t a paperwork problem alone. It can throw off contribution calculations, required distribution amounts, and draw IRS attention. Treat the annual valuation as a fixed cost of holding property inside a retirement account.

Liquidity and Required Minimum Distributions

Real estate is illiquid. Retirement accounts have mandatory distribution timelines. Those two facts collide.

Once you reach age 73, you must take required minimum distributions (RMDs) each year from traditional IRAs and Solo 401(k) plans.11Internal Revenue Service. Retirement Topics – Required Minimum Distributions (RMDs) If the account is almost entirely a building with little cash on hand, meeting the RMD gets complicated. Options include:

  • Pulling from another IRA. The IRS calculates RMDs across all your traditional IRAs combined and lets you take the total from whichever one has cash.
  • Taking an in-kind distribution. The custodian transfers a fractional interest in the property (or the LLC holding it) to you personally. The value on the transfer date counts toward the RMD, and you owe income tax on that amount.
  • Selling or refinancing. Either can raise cash, but neither happens on demand.

The penalty for missing an RMD is 25% of the shortfall. Plan for enough cash inside the account to cover several years of RMDs on top of property taxes, insurance, and maintenance. A new roof that empties the reserve right before a distribution is due creates an expensive problem.

Roth vs. Traditional for Real Estate

The account flavor determines how income and gains are taxed on the way out. A Traditional SDIRA grows tax-deferred; distributions in retirement are taxed as ordinary income. A Roth SDIRA is funded with after-tax dollars, and qualified distributions, including all the accumulated rental income and appreciation, come out tax-free.

For property that appreciates over decades, the Roth structure can be extremely valuable. Roth IRAs also have no required minimum distributions during the owner’s lifetime, which removes the liquidity crunch above. Direct Roth contributions are capped by income limits, so most investors fund a Roth SDIRA by converting existing traditional IRA funds and paying income tax on the converted amount in the conversion year.

One boundary worth naming: a Roth doesn’t escape UBTI or UDFI. Those taxes are levied on the trust itself, not on the distribution. A Roth IRA using a non-recourse loan owes UDFI on the leveraged portion of income just like a Traditional IRA would. The Solo 401(k) UDFI exemption is what removes that layer, not the Roth election.