Self-Directed IRA Rental Property UBIT: What the Non-Recourse Loan Costs You.

An investor with $160,000 in a self-directed IRA finds a duplex listed at $400,000. The custodian confirms the IRA can borrow the difference from a non-recourse lender, which is true. What does not come up on that call is self-directed IRA rental property UBIT: the note turns a fully sheltered rental into a partly taxable one, and the cost lands at the exit rather than in the rent. Seven years later he sells for $625,000 and the IRA owes $40,880.

An IRA is exempt from income tax under IRC §408(e)(1), with one exception written into the same sentence: the tax imposed by §511 on unrelated business income. That is the whole hook. The §511 tax is computed at the rates for trusts under §1(e) and paid out of the IRA's own money.

Normally rent is not unrelated business income at all. Section 512(b)(3) excludes rents from real property and §512(b)(5) excludes gain on the sale of property, so an IRA that buys a rental for cash collects rent and sells it years later without a dollar of tax. Then §512(b)(4) says that notwithstanding paragraphs (1), (2), (3) and (5), the amount determined under §514(a)(1) on debt-financed property is gross income from an unrelated trade or business.

Section 514 sizes the piece. Income-producing property carrying acquisition indebtedness at any time during the year is debt-financed property under §514(b)(1). The includible share, the debt/basis percentage, is average acquisition indebtedness for the year over the average adjusted basis, and the same percentage applies to the deductions connected with it. Treas. Reg. §1.514(c)-1 builds the numerator by averaging the principal outstanding on the first day of each month. One rule quietly raises the result: §514(a)(3) allows only straight line depreciation here, so bonus depreciation and a cost segregation study do nothing for an IRA.

Run the duplex at $33,000 of gross rent with a debt/basis percentage of 69.2%. The IRA reports $22,836 of gross unrelated business income and deducts 69.2% of the year's costs: $14,200 of mortgage interest, $10,500 of taxes, insurance, repairs and management, and $11,636 of straight-line depreciation, which is $25,145 of the $36,336 total. That is a $2,309 loss, no tax, and a return anyway, because the Form 990-T filing requirement keys off $1,000 of gross unrelated business income, not net. The loss carries forward under §512(b)(6) and is worth having when the property sells.

The compliance belongs to the account. The IRA needs its own EIN instead of your Social Security number, the custodian signs and files the 990-T, and the tax comes out of IRA assets. The return is due April 15 for a calendar-year account, extendable to October 15, and estimated installments start once the expected tax is $500 or more. Short-term rentals get there without any debt at all: once the IRA furnishes services the way a hotel does, the payments are not rents from real property under Treas. Reg. §1.512(b)-1(c)(5).

Nothing in the rent math prepares you for the disposition, because the statute changes the input. On property sold during the year, acquisition indebtedness is the highest amount of the debt during the 12-month period ending on the date of sale. Not the payoff figure at closing, and not a monthly average. The high-water mark. Meanwhile depreciation has been shrinking the denominator the entire time you owned the place, so a percentage that started near 60% is usually past 65% by the time the sign goes up.

Two things about that number matter. The IRA owes it, not you, so the money comes out of proceeds you meant to redeploy. And every year of depreciation cut the basis in the denominator, which is why the taxable percentage climbed as the loan amortized. That same depreciation creates the 25% slice at the end, the depreciation recapture problem every rental owner faces, showing up inside a wrapper that was supposed to make it moot.

The 12-month rule is a hard edge, and hard edges are plannable. If the highest balance during the 12 months ending on the sale date is zero, the debt/basis percentage on the gain is zero, the property is not debt-financed for the disposition, and the whole gain goes back under the §512(b)(5) exclusion. In the example that is $40,880 erased by a payoff scheduled 13 months early instead of at the closing table. The constraint is cash: the IRA has to find $214,900 from accumulated rent, contributions, or another asset in the account, and none of it can come from you.

The loan has to be non-recourse. Section 4975(c)(1)(B) makes any lending of money or other extension of credit between a plan and a disqualified person a prohibited transaction, and §4975(e)(2) makes you a disqualified person as to your own IRA. In Peek v. Commissioner, 140 T.C. 216 (2013), two taxpayers personally guaranteed a loan used by a company their IRAs owned. The Tax Court held the guarantees were indirect extensions of credit to the IRAs, the accounts lost their status back in 2001, and the gain on a 2006 sale was taxable to the men personally. Section 408(e)(2) is the machinery: the account stops being an IRA on the first day of that year and its entire value is treated as distributed, with the 10% penalty under §72(t) if you are under 59½.

The same section governs the rest of it. You cannot swing a hammer at the property or pay yourself to manage it. In Ellis v. Commissioner, 787 F.3d 1213 (8th Cir. 2015), the Eighth Circuit affirmed that wages paid to an IRA owner by a business his IRA owned violated §4975(c)(1)(D) and (E). Nobody in your family stays in the unit, not for one weekend. The rules behind the Peter Thiel Roth IRA strategy decide whether your duplex is still inside a retirement account next April.

Section 514(c)(9) lets a qualified organization borrow against real property without creating acquisition indebtedness at all. Section 514(c)(9)(C) lists who qualifies: schools described in §170(b)(1)(A)(ii) and their supporting organizations, qualified trusts under §401, title-holding companies under §501(c)(25), and retirement income accounts under §403(b)(9). An IRA is described in §408 and is not on that list. A one-participant 401(k) is a qualified trust under §401(a) and is, which is why a self-employed investor who can run a solo plan should usually borrow inside that plan instead. It is not automatic: §514(c)(9)(B) attaches conditions, including a purchase price fixed at closing and limits on buying from or leasing to a disqualified person. It is still the difference between $40,880 and zero.