Buying an RV Park With a Self-Directed IRA or Solo 401(k)

Why Retirement Funds Are an Overlooked Capital Source

Most investors treat their old employer 401(k) and Roth IRA as untouchable — money that just sits and compounds until retirement. That's true for a standard brokerage account. It's not true once those funds move into a self-directed IRA (SDIRA) or a Solo 401(k), both of which are legally permitted to own direct real estate, including RV parks.

This isn't a loophole — it's been part of the tax code since IRAs were created in 1974. The restriction was never "no real estate." It was always "no self-dealing." Most custodians (Fidelity, Schwab, Vanguard) simply don't offer real estate as an investment option because it's operationally harder for them, not because the IRS forbids it. A small number of specialized custodians exist precisely to fill that gap.

These are the two vehicles used to buy RV parks with retirement money, and the right one depends heavily on your employment situation and whether you plan to use leverage.

This is where most first-timers get burned. A retirement account is normally tax-exempt — but that exemption has limits, and RV parks can trip both of them.

Two ways around this: buy all-cash inside the SDIRA (no UDFI at all, since there's no debt), or use a Solo 401(k) instead of an SDIRA, since IRC Section 514(c)(9) specifically exempts qualified retirement plans from UDFI on real estate debt. This is not a minor technicality — it can be the difference between a clean tax-deferred return and an annual tax bill your custodian has to file a Form 990-T for.

IRC Section 4975 lays out "disqualified persons" and prohibited transactions. Violate these and the IRS can deem the entire account distributed as of January 1 of the violation year — triggering ordinary income tax on the full balance plus a 10% early withdrawal penalty if you're under 59½. This is the single biggest risk in the whole strategy, and it's entirely avoidable if you know the rules going in.

• ✕You cannot live at the park or use a site personally — even for a single free weekend in your own RV. The property must be a pure investment, zero personal use, ever.
• ✕You cannot manage the park yourself for pay — or even unpaid "sweat equity" labor like mowing, painting, or fixing hookups. Hire an third-party manager and pay them from plan funds.
• ✕You cannot buy the park from, or sell it to, a disqualified person — yourself, your spouse, your parents, your children, or entities they control. Buying a park from your father-in-law with IRA funds is a textbook prohibited transaction.
• ✕You cannot personally guarantee a loan the account takes out. Any financing must be strictly non-recourse to you as an individual.
• ✕You cannot co-invest personal funds alongside IRA funds in the same specific property in a way that creates commingling — e.g., your IRA owns 60% and you personally own the other 40% of the same LLC that holds the park. Structured partnerships between an IRA and an unrelated third party are fine; between you and your own IRA, they're not.
• ✕All expenses and income must flow through the account — never pay a repair bill from your personal checking account "to save time" and get reimbursed later, and never deposit rental income anywhere but the IRA/401(k) custodial account or its LLC.

RV park deals move fast — earnest money deposits, inspection periods, and closing windows often run 30–45 days. Routing every step through a custodian who has to review and approve each transaction (sometimes taking days to process a single wire) can cost you the deal.

Checkbook control solves this. Your SDIRA or Solo 401(k) funds and owns a special-purpose LLC. You are appointed the manager of that LLC (not in your capacity as the IRA owner, but as the manager the IRA hired). As manager, you can write checks, wire earnest money, and sign the purchase agreement directly — on the LLC's behalf, with the LLC's EIN and bank account — without waiting on custodian approval for each transaction.

• SDIRA route: Custodian funds a newly formed LLC 100% owned by the IRA. You're named manager. This is often called an "IRA/LLC" or "checkbook IRA."
• Solo 401(k) route: Checkbook control is often built into the plan itself — as trustee of your own Solo 401(k), you can open a bank account in the plan's name and transact directly, no separate LLC required (though many investors still use one for liability protection).

1. 1. Choose your vehicle. SDIRA if you're W-2 employed or want simplicity; Solo 401(k) if you're self-employed with no full-time employees and plan to use leverage.
2. 2. Open the account with a specialized custodian or plan provider. Look for firms specifically experienced in real estate (not general brokerage custodians) — they'll understand RV park titling, property manager arrangements, and UDFI reporting.
3. 3. Roll over or transfer existing funds. Move money from an old 401(k), rollover IRA, or existing Roth/Traditional IRA into the new self-directed account. This is a trustee-to-trustee transfer — funds never touch your personal bank account, which keeps the transfer tax-free.
4. 4. Set up checkbook control (optional but recommended for speed). Form the LLC, have the custodian fund it from the IRA, get an EIN, open the LLC's bank account.
5. 5. Underwrite the deal exactly as you would with personal funds. See our underwriting guide for the full process — the numbers don't change just because retirement money is paying for it.
6. 6. Have the LLC (or custodian) sign the purchase agreement. Title goes to the LLC or the custodian FBO ("for benefit of") your account — never to you personally.
7. 7. Line up a property manager before closing. You cannot manage it yourself. Budget the management fee (typically 8–12% of gross revenue for RV parks) into your underwriting from day one.
8. 8. Route all income and expenses through the plan's account. Rent deposits in, repair bills out — nothing touches your personal finances.

Most RV parks cost more than any one person's retirement account holds. A common structure: your SDIRA or Solo 401(k) partners with outside investors (or a syndication) as a fractional owner of the LLC that holds the park — proportional to the capital it contributes.

This is fully permitted as long as the other investors are not disqualified persons relative to your account (unrelated third parties, other investors' own IRAs, etc.) and the terms are negotiated at arm's length — same pro-rata ownership, same distribution waterfall as any other investor would get. Your IRA becomes a passive LP in a deal it doesn't control day-to-day, which sidesteps most of the "who's managing this" prohibited-transaction questions entirely.

• ✕Using a generic LLC attorney who doesn't understand IRA/LLC structuring, resulting in an operating agreement that doesn't reflect the account as the sole member.
• ✕Paying for a Phase 1 environmental assessment or inspection with a personal credit card "to earn points" and forgetting to get reimbursed from the plan — this is commingling, a prohibited transaction.
• ✕Ignoring UDFI reporting on a leveraged SDIRA deal — the custodian may require you to file Form 990-T, and skipping it doesn't make the tax liability disappear; it just adds penalties.
• ✕Hiring a family member as the property manager without realizing spouses, parents, children, and grandchildren are all disqualified persons — a sibling, cousin, or friend is generally fine; direct lineal family is not.
• ✕Underestimating setup timelines — rollovers and LLC formation can take 3–6 weeks. Start the account setup before you're under contract on a specific park, not after.

Before you get to any of this, make sure the deal itself pencils. Run it through our RV park due diligence checklist first — a great tax structure around a bad deal is still a bad deal.

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