REIT Prohibited Transaction Tax: 100% Rate, Safe Harbor, and TRS Options

The REIT prohibited transaction tax is a 100% federal excise tax on the net income a real estate investment trust earns when it sells property that was held primarily for sale to customers in the ordinary course of business. Every dollar of profit on a disqualified sale goes to the government. The tax exists because REITs get generous pass-through treatment in exchange for behaving as passive owners rather than developers or flippers, and the rate is set high enough to make the trade-off unmistakable. Federal law offers a safe harbor that shields qualifying sales, and most REITs structure their dispositions to fit inside it or route risky sales through a subsidiary that pays ordinary corporate tax instead.¹

What Counts as a Prohibited Transaction

A prohibited transaction is the sale of property held primarily for sale to customers in the ordinary course of a trade or business. That’s the same statutory language courts use to separate dealers from investors in other tax contexts, and the IRS applies the same multi-factor analysis when auditing a REIT sale.²

Factors that draw scrutiny include how quickly the REIT sold after acquiring the property, whether the trust made substantial improvements before selling, how aggressively the property was marketed, and the volume of sales relative to the rest of the portfolio. No single factor decides the outcome. A trust that holds a building for years, collects rent throughout, and sells because market conditions changed looks very different from one that buys, renovates, and lists within months.¹

Foreclosure property is carved out of the definition entirely. Property a REIT acquires through default on a loan or lease is never treated as dealer inventory, no matter how quickly it’s sold or how much profit results.

How the 100% Rate Applies

The tax is 100% of net income from prohibited transactions. It sits outside the REIT’s regular taxable income calculation, which means it can’t be reduced by the dividends paid deduction that normally zeros out corporate-level tax for REITs. It is a standalone obligation, not an add-on.¹

Net income equals the gain minus deductions with a proximate and primary relationship to earning that gain: brokerage commissions, closing costs, and marketing expenses tied to the specific sale. General overhead doesn’t count.³

The math has one especially harsh feature. Losses from one prohibited transaction cannot offset gains from another. If a REIT sells two dealer properties and clears $2 million on one while losing $1 million on the other, the tax is $2 million. The loss disappears for prohibited transaction tax purposes, though it does reduce the amount the REIT must distribute as dividends.² Because the government takes the full profit, shareholders see nothing from a prohibited sale. The rate is designed to be confiscatory, and it is.

The Safe Harbor

The statute provides objective criteria that shield a sale from the 100% tax regardless of how the subjective dealer-versus-investor factors look. A REIT that meets every requirement has a conclusive defense.¹

The REIT must have held the property for at least two years. For land or improved property not acquired through foreclosure, the two years must have been for the production of rental income.
Capital expenditures added to the property’s basis during the two years before sale cannot exceed 30% of the net selling price. This blocks the pattern of buying, renovating heavily, and selling.
The REIT must satisfy one of five volume tests capping its sales activity.
If the REIT sells more than seven properties in the year and relies on a percentage-based volume test, substantially all marketing and development spending on the sold properties must have been handled by an independent contractor (from whom the REIT earns no income) or by a taxable REIT subsidiary.

The Five Volume Tests

A REIT needs to satisfy only one. Sales of foreclosure property and involuntary conversions such as condemnations are excluded from the count under all of them.

No more than seven property sales during the taxable year. The simplest test, and the one that avoids the independent contractor requirement.
Aggregate adjusted bases of properties sold during the year at or below 10% of aggregate adjusted bases of all trust assets at the start of the year.
Aggregate fair market value of properties sold during the year at or below 10% of the fair market value of all trust assets at the start of the year.
Aggregate adjusted bases of sold properties at or below 20% for the year, with a three-year average adjusted bases percentage at or below 10%.
Same 20% single-year and 10% three-year average structure, using fair market value.

The two 20% alternatives with the three-year lookback give a REIT room during a period of portfolio restructuring, provided the rolling average stays contained.

Foreclosure Property Is Treated Separately

Property acquired through foreclosure, a deed in lieu, or a lease termination following tenant default is categorically outside the prohibited transaction definition. The 100% tax does not apply to it.¹

To claim this treatment, the REIT must attach an election statement to its income tax return for the year of acquisition, identifying the property, describing how it was acquired, and naming the defaulting borrower or tenant. The deadline is the due date of that return, including extensions. A loan or lease made with the intent to foreclose is ineligible.⁴

Net income from foreclosure property carries its own tax at the highest corporate rate, reported in Part II of Form 1120-REIT rather than the prohibited transaction section. It is far less punitive than 100%, and foreclosure sales don’t count against the safe harbor volume tests for other dispositions.³

Using a Taxable REIT Subsidiary

When a sale might not clear the safe harbor, the standard planning move is to route it through a taxable REIT subsidiary. A TRS is a separate corporation that elects subsidiary status under the REIT rules and pays regular corporate income tax on its profits, currently 21%.⁵ Paying 21% on a gain beats surrendering all of it.

There are boundaries. Securities of all TRS entities combined cannot exceed 25% of the REIT’s total asset value at the close of any quarter, so a REIT can’t shift the bulk of its portfolio into a TRS to sidestep the prohibited transaction rules. Transactions between the REIT and its TRS must be at arm’s length; related-party dealings that don’t reflect fair market value can trigger a separate 100% excise tax on the mispriced portion.

The approach works best when the resale risk is identified early. Buying the property through the TRS at the outset is cleaner than transferring it later, since a REIT-to-TRS transfer itself has to be at fair market value and produces its own tax consequences. Any acquisition with a short-timeframe resale plan is a natural candidate for TRS ownership.

The Larger Risk to REIT Status

The 100% tax is not the only exposure. Gain from a prohibited transaction is not qualifying income for the annual gross income tests every REIT must pass. At least 75% of gross income has to come from real-estate-related sources like rents and mortgage interest, and at least 95% has to come from those sources plus other passive income like dividends and interest. Prohibited transaction gain fails both.¹

A REIT that produces significant dealer income can push past the 5% and 25% ceilings on bad income and threaten its qualification entirely. Losing REIT status turns the entity into a regular C corporation subject to double taxation, with no ability to re-elect REIT status for five years. A single ill-advised sale means a painful tax bill; a pattern of dealer-like behavior is an existential problem for the structure.

Reporting on Form 1120-REIT

Prohibited transaction income is reported in Part IV of Form 1120-REIT, “Tax on Net Income From Prohibited Transactions.” The REIT enters gains on one line and directly connected deductions on the next to arrive at the net income subject to the 100% rate. The tax is due by the original filing deadline for the return.³

Documentation carries more weight here than in most tax settings. Acquisition dates, holding-period records, rental income history, the two-year capital expenditure log, and the transaction-specific costs all need to be traceable, both to support the return and to defend safe harbor qualification on audit. When the penalty for a misstep is the entire profit on the sale, most REIT managers treat the paperwork as non-negotiable.

1
Office of the Law Revision Counsel. 26 USC 857 – Taxation of Real Estate Investment Trusts and Their Beneficiaries
2
eCFR. 26 CFR 1.857-5 – Net Income and Loss From Prohibited Transactions
3
Internal Revenue Service. Instructions for Form 1120-REIT
4
eCFR. 26 CFR 1.856-6 – Foreclosure Property
5
Office of the Law Revision Counsel. 26 USC 856 – Definition of Real Estate Investment Trust