The short-term rental tax loophole: read the 100 hours closely

Someone at dinner told you about it. Buy a short-term rental, run a cost segregation study, and write off $50,000 against your W-2 salary in year one. All it takes is 100 hours of your time, which works out to two hours a week.

The short-term rental tax loophole is real, and the 2025 tax law made it more valuable than it's been in years. The 100 hours is real too. What the dinner version leaves out is the second half of the rule. Nobody else, including your cleaner, can spend more time on the property than you do. Here's how the STR loophole works, what the 100 hours look like in a real year, and why a long-term rental is the better fit if they don't work for your schedule.

What is the short-term rental tax loophole?

The short-term rental tax loophole, also called the STR loophole or the Airbnb tax loophole, lets you use losses from a rental property to offset W-2 income without qualifying as a real estate professional.

The STR loophole requirements come down to four conditions in the same tax year. The average stay has to be seven days or less. You have to materially participate. Your own use of the property has to stay at or under 14 days or 10% of the days it rents, whichever is greater. And the property has to produce a loss worth claiming, which is where depreciation comes in.

Why rental losses usually can't touch your salary

The tax code sorts income into categories. Your salary sits in one. Rental income sits in another that the IRS calls passive, a tax label that has nothing to do with how much work the property takes. Losses in the passive category can offset other passive gains, but they can't cross over to your W-2.

There are two standard ways around that wall, and neither fits most high earners. The first is a $25,000 allowance for rental losses, which starts phasing out at $100,000 of modified adjusted gross income and is gone by $150,000. The second is real estate professional status, which requires 750 hours a year in real estate and more than half of your total working time. If you put in 2,000 hours a year as a surgeon, you'd need more than 2,000 hours in real estate on top of that. Our guide to rental property tax benefits covers both rules in more depth.

How the short-term rental loophole works

The loophole comes from one line in the passive activity regulations. When the average guest stay at your property is seven days or less, the IRS stops treating the property as a rental activity and treats it as a business, closer to a small hotel than a long-term rental.

As a business, the loss only counts as passive if you don't materially participate. Materially participate, and the loss moves into the same category as your salary, where it can offset W-2 income directly. Unlike the $25,000 allowance, there's no income phase-out.

Why the loss got bigger in 2025

The 2025 tax law known as the One Big Beautiful Bill Act, signed July 4, 2025, permanently restored 100% bonus depreciation for property acquired after January 19, 2025. Before that, bonus depreciation had been stepping down since 2023 and was scheduled to fall to 20% in 2026 and zero in 2027.

On a short-term rental, bonus depreciation doesn't apply to the whole property. It applies to the parts with short useful lives, such as appliances, carpet, cabinetry, landscaping, and in a furnished STR, the furniture. A cost segregation study identifies those parts, which usually add up to 20% to 30% of the building's value. With 100% bonus, you deduct all of it in the first year.

Take a $200,000 property and back out the land.

Illustrative example. Actual tax outcomes vary based on income, filing status, state, property, and individual circumstances. Lineage is a transaction platform, not a tax advisor. Review any tax strategy with a CPA before acting on it.

The 100-hour material participation test

The regulations list seven ways to materially participate, and you only need to pass one. Most W-2 earners with an STR aim for the third: you spend more than 100 hours on the property during the year, and no other individual spends more time on it than you do.

That second half is the part the dinner version leaves out. The 100 hours is a floor. The real bar is whoever else works on your property.

Say your cleaner spends three hours on each turnover and you host 40 stays a year. That's 120 hours for the cleaner, so your 100 hours no longer qualifies. You need at least 120. Hire a full-service STR manager and the math usually ends there, because their team handles guest messages, pricing, check-ins, and maintenance, and at least one person on that team will log more hours than you. Cleaners and co-hosts are allowed. They just can't outwork you.

Two other tests can also get you there. You qualify if you put in more than 500 hours, or if you do substantially all the work on the property yourself. Both are harder to meet with a full-time job.

A few details decide the close calls. Investor-type work doesn't count, which rules out reading monthly statements or researching your next market. The hours that count start once the property is placed in service, meaning listed and available to book, and they have to land in the year you claim the loss. Setup work before the listing goes live generally doesn't count. List the property in October and you have about 12 weeks to clear the bar, or more than eight hours a week.

What 100 hours looks like in a real year

The work itself isn't the problem. Answering a guest at 11 p.m. who can't find the lockbox counts. So does resetting nightly rates before a holiday weekend, restocking coffee pods, and replacing the white towel someone used to clean the grill. Most investors who run their own STR can find 100 hours. The hard part is outworking the person who cleans it, and then proving you did.

Here's an illustrative year on a property with 40 stays, where you run the guest side and a cleaner handles the turnovers.

Illustrative example. Your hours depend on the property, the market, and how you split the work.

That works out to about two and a half hours a week, every week of the year, and it beats the cleaner by only eight hours. Hand the walk-throughs to the cleaner and that margin is gone.

How to meet the 100-hour test

Investors who make this work tend to use the same few moves. They split turnovers between two or more cleaners, because the test compares you to each individual, so no single cleaner logs more hours than you. They clean some turnovers themselves, which adds hours to their side and takes them off the cleaner's. In the year above, cleaning five turnovers yourself moves you to 143 hours and the cleaner down to 105. And they pool hours with a spouse, since a spouse's time counts toward material participation and a couple can split the load.

Then they keep a log. The regulations don't strictly require a daily one, but when the IRS challenges material participation, it asks for records, and hours reconstructed a year later rarely hold up. Write down the date, the task, and the time, every week.

The seven-day average needs watching too. It's calculated across every stay in the year, so on a low-volume property, a few long bookings can push the average past seven days. Your own stays don't change the average, but they trigger a harsher rule. Use the place more than 14 days or more than 10% of the days it rents, whichever is greater, and there's no loss left to claim.

What to plan for beyond the tax return

A short-term rental runs on a different budget than a long-term one. Here's what to plan for before you close.

• Insurance. A standard landlord policy generally excludes or limits claims during paid short stays, because insurers treat them as business use. You'll need a dedicated short-term rental policy, which typically runs $1,000 to $3,500 a year per property, or at minimum a home-sharing endorsement. A booking platform's host protection doesn't replace a policy, and it only covers stays booked through that platform.
• Financing. Lenders who finance short-term rentals often count only 70% to 80% of projected booking revenue, ask for six months or more of payments in reserve, and in vacation markets can require 25% or 30% down. Some DSCR programs won't count short-term rental income at all, so ask your lender how they treat it before you make an offer.
• Furnishing and operating costs. You furnish the property before the first guest arrives and replace things on a faster cycle. Budget for cleaning on every turnover, plus supplies, utilities, internet, and platform fees, which a long-term tenant would usually cover or never create.
• Seasonal revenue. Bookings move with the seasons and with new listings nearby, so set your reserves to cover the slowest months of the year.
• Local rules. Check the city's short-term rental rules and any HOA restrictions before you buy, and keep an eye on them after. New York City's short-term rental registration law, enforced since September 2023, effectively ended most stays under 30 days there. A ban would also end the seven-day condition the tax strategy depends on.
• Your time. Set your hours against the roughly $15,000 federal offset in the example above so you know what they're buying.

How to set up an STR for the loophole

If the hours fit, the order of operations matters more than any single step.

Start with the market, because a city that bans or caps short-term rentals ends the conversation before the tax code gets a say. Run the numbers as a hospitality business, with nightly rates, occupancy, cleaning fees, supplies, and platform fees, and make sure the property works before the deduction. Then run the same property as a long-term rental. If the city changes its rules, the HOA bans short stays, or bookings slow down, a property that still cash flows with a 12-month tenant gives you a fallback. Bring in a CPA who works with STR owners before you close, because a plan is easier to fix before the closing statement exists.

After closing, get the property listed and bookable in the year you want the deduction, since that's when it's placed in service and when your hours start counting. Order the cost segregation study before you file for that year, and start your hours log the day the listing goes live. Large losses also run into an annual cap on how much business loss can offset your other income. For 2026 that cap is $512,000 on a joint return. Losses above it aren't gone. They become a net operating loss you carry forward to future years.

The part that shows up later

Bonus depreciation is a timing benefit. Every dollar you deduct lowers your basis, and the IRS collects when you sell. The short-life components are recaptured at ordinary income rates, which for a high earner can run well above the rate of up to 25% that applies to the structure. Our breakdown of capital gains on a rental property walks through how those layers stack.

A 1031 exchange can defer most of the bill if you roll the proceeds into another investment property. Furniture no longer counts as like-kind property, and some cost segregation components can still trigger recapture in an exchange, so a CPA should map the replacement property before you sell. Hold the property until death and the math changes entirely. Your heirs receive a stepped-up basis, which wipes out the deferred gain and the recapture.

Material participation is also tested every year. If you hand the property to a full-service manager in year two, the deduction you already took stays put, but future losses go back to being passive.

State taxes can shrink the benefit as well. Several states, including California and New York, don't follow federal bonus depreciation, so residents there take regular depreciation on their state return. The state deduction is smaller in year one, not zero.

If the hours don't fit

If the 100 hours don't fit your schedule, a long-term rental is the better fit. A property manager runs the day-to-day, and you still keep the depreciation. What changes is when the loss can offset your salary.

A professionally managed long-term rental still depreciates, and cost segregation still accelerates it. Our post on cost segregation vs. straight-line depreciation shows how the accelerated deduction plays out over a long hold. The loss is passive. Unless your modified adjusted gross income is low enough to use the $25,000 allowance, it can't offset your salary while you hold the property. It isn't wasted. It shelters the property's own rental income, offsets passive gains from your other rentals, and carries forward indefinitely. When you sell the property to an unrelated party in a fully taxable sale, every suspended loss is released and can offset any kind of income, W-2 included. A 1031 exchange works differently. It defers the gain, and the suspended losses stay suspended until a later fully taxable sale.

If one spouse works in real estate or doesn't hold a full-time job, real estate professional status may be realistic for your household. It removes the automatic passive label, but the qualifying spouse still has to materially participate in the rentals themselves. On a managed portfolio, that usually means electing to group the rentals as one activity and logging 500 or more hours on them.

Whichever column fits, the property has to work first and the tax strategy second. If you'd enjoy running a small hotel, the STR loophole can pay you well for the work. If the hours don't fit, a managed long-term rental is the better fit, and it still carries the depreciation. Either way, bring a CPA who works with real estate investors into the decision before you close.