Short-Term Rental Loophole

What the short-term rental loophole is

Most rental losses are passive. A passive loss can only reduce passive income. If your money comes from a salary, a rental loss usually sits and waits until you have passive income or you sell. That is the passive activity loss rule in Section 469.

Short-term rentals can step outside that rule. A regulation under Section 469 says an activity is not a rental activity when the average period of customer use is seven days or less. That is Reg. 1.469-1T(e)(3)(ii)(A). The activity becomes a trade or business. If you materially participate in a trade or business, its loss is not passive, and it can reduce the tax on your salary in the same year.

People call this the short-term rental loophole. It is not a mistake in the law. It is a written exception that has been in the regulations since 1988. What makes it feel like a loophole is that it works for people with full-time jobs, and almost nothing else in real estate does.

Test one: the seven-day average stay

Take every rental day in the tax year. Divide by the number of separate guest stays. That is your average period of customer use. It has to be seven days or less.

Some examples. 240 rental days across 60 bookings is an average of 4 days. That passes. 240 rental days across 30 bookings is 8 days. That fails, and the whole year fails with it, because the test is a yearly average and not a per-booking rule.

Two things catch people out. The first is a single long booking. One 45-night winter guest can drag the yearly average over seven days on its own. The second is a slow season with few bookings, where the math has a small number of stays to divide by. Run the number every month, not in April.

There is a second version of the exception in Reg. 1.469-1T(e)(3)(ii)(B). If the average stay is 30 days or less and you provide significant personal services, the activity is also not a rental activity. It is harder to prove and it raises the self-employment tax question, so most people use the seven-day version.

How to calculate and prove the average

Export the booking report from your platform at the end of the year. It lists check-in and check-out dates for every stay. Total the nights, count the stays, and divide. Keep the export and the calculation. If a booking spans December 31, count the nights that fall in each year in that year.

Test two: material participation

Clearing the seven-day test only makes the activity a business. It does not make the loss usable. You still have to materially participate. Temp. Reg. 1.469-5T(a) gives seven tests and you only have to pass one.

Test three is the practical one. More than 100 hours, and no other individual works more hours than you. The comparison covers everyone: your cleaner, your handyman, your co-host, and anyone paid by a management company. If your cleaner spends 130 hours on turnovers and you spend 110, you lose.

Hours your spouse works count as yours under Section 469(h)(5), whether or not you file jointly and whether or not your spouse owns any part of the property. That is the single most useful rule in this area.

What hours count

Work an owner normally does in this kind of business counts. Guest messages, pricing, calendar management, ordering supplies, meeting contractors, doing repairs, cleaning, taking photos, writing the listing, bookkeeping for the property, and travel time to do those things at the property.

What does not count: investor-type work such as reviewing financial statements or studying returns, unless you are involved in day-to-day management. Time spent shopping for the next property does not count toward this property either. Reading about the strategy does not count.

Why this works without real estate professional status

Section 469 puts every rental activity in the passive bucket, even if you work full time on it. Real estate professional status under Section 469(c)(7) is the standard way out. It asks for more than 750 hours in real property trades or businesses, and more than half of all the personal services you perform in the year. A person with a 2,000-hour job cannot pass the second part.

The short-term rental exception works differently. It does not lift the passive label off a rental. It says the activity was never a rental activity to begin with, so the automatic passive rule never applied. From there the normal business rule takes over: material participation makes it non-passive. That is why 100 hours can be enough here and 750 is not enough over there.

Side by side, the two routes are not close for a full-time employee. The REPS versus STR loophole comparison lays the tests out next to each other and shows which one a spouse can carry.

Cost segregation and bonus depreciation in 2026

Passing the two tests only lets you use a loss. Normal operations rarely make a big one. The loss comes from depreciation, and the size of it comes from cost segregation.

Residential rental property depreciates over 27.5 years by default. A cost segregation study is an engineering review that splits the purchase price into parts: five and seven year personal property such as appliances, carpet, cabinets and furniture, fifteen year land improvements such as driveways, fencing and landscaping, and the 27.5 year building shell. Land itself is never depreciated.

The short-life parts are what bonus depreciation acts on. For 2026 the rate is 100 percent for qualified property acquired after January 19, 2025. The One Big Beautiful Bill Act made that permanent in Section 168(k), and the IRS gave interim guidance in Notice 2026-11. Property under a binding contract signed on or before January 19, 2025 stays on the old phase-down and gets 20 percent in 2026, so the contract date matters more than the closing date.

Put together, a study on a normal single-family short-term rental often moves 20 to 30 percent of the building basis into short-life classes, and all of that can come off in year one.

Step by step: how to set this up

Step 1: Check that the property can hold a seven-day average

Before you buy, pull comparable booking data for the area. Add up the rental days and divide by the number of separate guest stays. If the market books ten and fourteen night stays, the property will not pass, and no amount of paperwork fixes that.

Step 2: Buy the property and place it in service in the same tax year

The deduction belongs to the year the property is ready and available to rent, not the year you closed. List it, set the calendar to open, and keep the listing screenshot with the date.

Step 3: Decide who does the work before you hire anyone

The easiest material participation test asks you to work more than 100 hours and more than any other person. A full-service property manager usually works more hours than you do, which ends the test. Use a cleaner and a handyman you direct instead.

Step 4: Start a contemporaneous hour log on day one

Record the date, the task, the minutes, and the property in a calendar or a spreadsheet you update each week. A log written in March for the year before is the first thing an examiner attacks.

Step 5: Order a cost segregation study

An engineering study splits the building into five, seven, fifteen, and 27.5 year components. The short-life components are what bonus depreciation acts on. Order it before you file the return for the purchase year.

Step 6: Claim bonus depreciation on the short-life components

For qualified property acquired after January 19, 2025, the bonus rate is 100 percent. The five and seven year personal property and the fifteen year land improvements come off in year one.

Step 7: Track the average stay and the hours every month

Run the average stay number monthly. One long winter booking can push the yearly average over seven days. If it is drifting, set a maximum stay in the listing rules for the rest of the year.

Step 8: File the return and keep the file together

Report the activity, attach Form 4562 for depreciation, and keep the cost segregation report, the hour log, the booking export, and the average stay calculation in one place for at least three years after you sell.

A worked example

Every number below is an assumption. Change any one of them and the answer changes. Run your own with the short-term rental purchase analysis calculator and the rental property cash flow calculator.

The assumptions

The first-year math

The property made $12,000 in cash and produced a $124,500 loss on paper. The loss is usable against wages only because both tests were met. Miss either one and the same $124,500 gets suspended and carried forward.

One more limit to check at this size. Section 461(l) caps how much business loss can offset non-business income in a year. For 2026 the cap is about $313,000 for a joint return, indexed each year. Anything above the cap becomes a net operating loss carried to the next year rather than a lost deduction.

How to document your hours

The hour log decides this case if it is ever examined. Courts have thrown out estimates and calendars rebuilt after the fact. Ball v. Commissioner and a long line of similar cases turn on the same point.

What a usable log has:

• The date, in the week the work happened.
• The property, if you own more than one.
• The task, written specifically. "Replied to 9 guest messages and repriced March weekends" beats "guest communication."
• The time, in minutes.
• Who else worked, and for how long, so you can prove the comparison in the 100-hour test.

Keep the supporting trail with it. Platform message timestamps, receipts, contractor invoices with dates, photos with metadata, and mileage records. The regulation at 1.469-5T(f)(4) says participation can be proven by any reasonable means and does not require a daily log, but examiners in practice want dated records made at the time.

Where people lose this

• Average stay drifts over seven days. One long booking or a thin off-season does it. Check monthly.
• The cleaner works more hours than the owner. A weekly turnover crew on a busy property can log 150 hours without trying. Count their hours before you count yours.
• A full-service manager is hired. That usually ends both the 100-hour test and the facts and circumstances test.
• The log is written after year end. This is the most common reason the deduction is lost at audit.
• The property is not placed in service by December 31. Closing in November and opening bookings in February moves the whole deduction to the next year.
• Personal use goes over the Section 280A limit. More than 14 days, or more than 10 percent of rented days, caps deductions at rental income.
• Several properties are treated as one activity without a grouping election. If you test each property separately you may fail each one. Grouping under Reg. 1.469-4 has to be elected and disclosed.
• People expect it to cut payroll or Medicare tax. It does not. It reduces income tax on the income you already earned.

What happens when you sell

Depreciation is not forgiven. It reduces your basis in the property, so it comes back as gain when you sell.

The building share comes back as unrecaptured Section 1250 gain, taxed at up to 25 percent. The five and seven year components from the cost segregation study are Section 1245 property and come back at your ordinary rate, which can be 37 percent. The fifteen year land improvements are Section 1250 property, but bonus depreciation on them is depreciation above straight line, and that excess is also recaptured at ordinary rates.

So the loophole is a deferral plus a rate bet. You deducted at your ordinary rate today and you pay back at a mix of 25 percent and ordinary rates later. It works out well if you hold for years, if your rate falls, if you exchange under Section 1031, or if your heirs get a stepped-up basis. It works out badly if you sell in two years at the same rate.

The honest math, both directions, is on the depreciation recapture on a short-term rental page.

Is this strategy right for you

It fits if you have a high marginal rate, a market where guests book short stays, time to run the bookings yourself or a spouse who can, and a hold period measured in years rather than months.

It does not fit if the property is worth much under $400,000, where a study fee eats too much of the benefit. It does not fit if you plan to hand the property to a full-service manager. It does not fit if you expect to sell inside three years. And it does not fit if the only reason you are buying is the deduction. A bad property with a good tax result is still a bad property.