How the short term rental exception turns rental losses nonpassive for a self managing owner, why it requires no real estate professional status and no 750 hours, and the participation record everything rests on.
By Samuel Ortiz, CPA, CVA · Last updated August 23, 2026
A rental whose average guest stay is seven days or less is not a rental activity under Section 469, so it is not automatically passive, and when the owner materially participates the losses are nonpassive and can offset other income such as wages. No real estate professional status is required, there is no 750 hour test and no income phaseout, and the entire position rests on proving material participation with a contemporaneous log of hours.
Rental losses are supposed to be trapped. Section 469 declares rental real estate passive by definition, which means the paper losses that depreciation and expenses generate can generally offset only other passive income, while the owner’s wages sit untouched beside them, and for a high earner with a property that runs at a loss on paper, that default is the entire problem.
The short term rental exception is not a workaround to that rule, it is a boundary drawn inside it. Under Treasury Regulation 1.469-1T(e)(3)(ii), a property whose average period of customer use is seven days or less is not a rental activity at all for passive loss purposes, the way a hotel is not a rental activity, so the automatic passive label never attaches. What remains is the ordinary question that applies to any business: does the owner materially participate. When the answer is yes, judged under the tests in Treasury Regulation 1.469-5T, the losses are nonpassive and can offset other income on the return, and none of it requires real estate professional status, the 750 hour test, the majority of working time test, or any income phaseout. A physician with a self managed ski cabin and a software engineer with a beach cottage are running on a different track from the landlord with a twelve month tenant, and the regulations put them there on purpose.
What a defensible position looks like has two halves, and both live in records kept as the year happens. The seven day average is arithmetic on booking data, total rented days divided by the number of stays, so the calendar and platform records that prove the average have to be preserved. Material participation is hours, the owner’s own hours, in work that is real, guest communication, turnovers, maintenance, pricing, listings, logged with dates and tasks at the time. The tests compare those hours to everyone else’s, which means a full service manager can quietly price the owner out of participation, and the log is what settles the comparison.
Twelve minutes to read an email, twelve minutes to send one. The Tax Court met that time log in Mirch v. Commissioner, T.C. Memo. 2025-128, a memorandum decision, and called it a “ballpark guesstimate,” and what puts the case on this page is that one of the two properties behind it was exactly the kind of property this strategy lives on, a short term vacation rental in Nevada. A married couple who ran a law practice together in Reno, both attorneys, one of them also a CPA with a master’s degree in tax law, claimed their rental losses against their law firm income, and when the IRS asked for the hours, what came back was an undated log built from standardized blocks of time, every email twelve minutes in and twelve minutes out, seven hours of cleaning for every guest turnover, eight hours of on call site management for every day the property was rented.
Hours built that way are arithmetic, not participation, and the court treated them accordingly. The cleaning hours were deemed not credible, in part because the same returns deducted professional cleaning fees, so the log was claiming work the money said someone else performed, the on call time was disregarded, and the hours that survived inspection fell short of what the statute requires. The couple could not produce the one item that decides these cases, a contemporaneous record of time actually spent, and two law degrees, a CPA license, and a master’s in taxation could not substitute for it. For this page the lesson is narrower than any hours threshold: material participation is proven the same way whatever the test, and a log reconstructed from formulas is worth what theirs was.
For rentals with longer stays the same nonpassive result runs through real estate professional status, a separate and more demanding route with its own two time tests, and it has its own page with the detail and the same case told from that side.
The short term rental exception is generous precisely because it asks for so little on paper, an average stay of seven days or less and participation that is real, and both of those live or die in contemporaneous records, the booking calendar for the average and the hours log for the participation. The record decides, here as everywhere, and the full walkthrough of what happens without one lives in the Mirch case brief for anyone who wants the decision in detail.
Ideas do not change your tax number, implementation does, and implementation is books kept current, records made at the time rather than reconstructed later, elections filed on time, and every position reported the way the return will one day have to defend it. That is the year round work a strategy actually requires, and on the strategies we implement we stand behind that work with audit defense. Reading about a strategy is step zero. The record is what decides whether it holds.
It is the popular name, sometimes called the short term rental loophole, for a definition in the passive activity regulations. A property whose average guest stay is seven days or less is not treated as a rental activity under Section 469, so it is not automatically passive, and if the owner materially participates the losses are nonpassive and can offset wages and other income. It is a definition being applied, not a trick being played.
By dividing the total number of days of customer use during the year by the number of separate stays. A property with 200 rented days across 40 bookings averages five days and falls outside the rental definition, while the same property with 200 days across 20 bookings averages ten and does not. Booking records are the evidence, so the calendar data needs to be kept.
Real estate professional status removes the passive label for longer term rentals and requires more than 750 hours a year in real property trades or businesses plus more than half of all working time spent there. The short term rental exception requires neither, because the activity was never a rental activity in the first place, and the only participation question is material participation in that property. The two are separate paths to the same nonpassive result.
Meeting one of the tests in Treasury Regulation 1.469-5T, most commonly more than 500 hours in the activity, participation that is substantially all of the participation in it, or more than 100 hours and more than anyone else. The hours must be the owner's own, they must be real work rather than investor style oversight, and they need a contemporaneous record with dates and tasks.
Not by itself, but it raises the bar. Several of the participation tests compare the owner's hours to everyone else's, so a full service manager can make them very hard to meet, and hours claimed for work the return shows was paid to a vendor will not be credible, which is exactly what happened to the cleaning hours in Mirch.
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