The Short-Term Rental Tax Loophole: How a $500,000 Airbnb Deducts $101,364 in Year One

Rental losses usually can't touch your salary. An ordinary rental is a passive activity under the tax code, and passive losses offset only passive income. That holds even when depreciation makes a house that earns money look like it loses money on paper. The "short-term rental loophole" is the one route around that rule that doesn't need real estate professional status, and it is why Airbnb and VRBO purchases pick up every autumn. Since the 2025 tax law made 100% bonus depreciation permanent, the first-year numbers are big again.

This guide works one $500,000 vacation rental through the rules: the seven-day test, the hours you have to log, what a cost segregation study moves into year one, and what you pay back when you sell.

Who this is for: U.S. individuals with W-2 or other active income who own, or are about to buy, a short-term rental they run themselves. What it does not cover: long-term rentals, which get a separate $25,000 allowance (see our depreciation guide); real estate professional status, a separate route with a 750-hour test; and commercial buildings and partnerships. Nothing here is tax advice. The worked numbers show how the rules fit together. Your own return depends on your income, your state and a cost segregation study we can't see.

The ruleWhy a short stay changes the tax treatment

The tax code counts every rental activity as passive, whatever you do (IRC §469(c)(2)). But the regulations take some activities out of the definition of "rental activity" entirely. The first exception, in Treas. Reg. §1.469-1T(e)(3)(ii)(A), is a property whose average period of customer use is seven days or less.

A short-term rental that passes the test is no longer a "rental activity." It is just a business. A business is passive only if you don't materially participate in it. So two tests decide whether the loss can offset a salary:

Pass both and the loss is nonpassive: it offsets wages, business income and anything else on your return. Fail either and the loss is suspended. It isn't lost: it carries forward until the property makes passive income or you sell it.

The exampleA $500,000 rental, with and without a cost segregation study

The property: $500,000 purchase price, 20% of it land (land is never depreciable), so a $400,000 building. It is ready and listed for rent in November 2026.

Without any study, the whole building is 27.5-year property. A cost segregation study is an engineering report that splits the purchase price into its parts. It finds the pieces that wear out faster: furniture, appliances, carpet, some finishes and fixtures (5- and 7-year property), and the driveway, landscaping and fencing (15-year property). We assume the study moves 25% of the building into those classes. Since the One Big Beautiful Bill Act, everything with a life of 20 years or less qualifies for 100% bonus depreciation if the property was acquired after January 19, 2025 (IRC §168(k); IRS Notice 2026-11).

The 25% share is our assumption, not a rule. Studies on furnished vacation homes often land in the 15–35% range, depending on how much of the price is in contents, finishes and site work. At 15% the first-year deduction would be $61,545; at 35%, $141,182. The IRS's Cost Segregation Audit Techniques Guide describes what examiners look for in a study, and a desk estimate that only applies a percentage is not one of those things.

The taxWhat the deduction is worth against a salary

If both tests are met and the property roughly breaks even before depreciation in its first two months, the $101,364 loss offsets other income. Here is what that saves in federal income tax for three households, using the 2026 brackets:

Notice the effective rate falls below the top bracket for the first two households. A deduction this size pushes part of the income down into a lower bracket, so it's worth less per dollar than "I'm in the 32% bracket" suggests. The single filer at $180,000 drops from 24% into 22% after about $74,000 of the loss.

One ceiling to know: the excess business loss limit caps how much business loss can offset other income in a year. For 2026 it is $256,000 single and $512,000 joint (Rev. Proc. 2025-32). Our example is well under it. A larger property, or two properties in one year, may not be.

The deadlineWhat "buy before December 31" really means

The pitch every December is "close by year end and take the deduction this year." The real rule is narrower.

• Placed in service, not closed. Depreciation starts when the property is ready and available for rent: furnished, listed and bookable (IRS Publication 527). A house that closes on December 20 and gets furniture in January is a 2027 deduction.
• The tests run on the calendar year. If the property starts renting in November, the average stay is computed only from November–December stays, and your material participation hours have to be in the same tax year. A late start compresses the 100 hours into a few weeks, and those weeks have to beat the cleaner's hours too.
• Investor-type work doesn't count. Reviewing statements, reading the monthly report or researching the market counts only if you are also involved in day-to-day management (Treas. Reg. §1.469-5T(f)(2)(ii)(B)). Guest messaging, pricing, cleaning, restocking and repairs do count.

If the first year doesn't meet the tests, the bonus depreciation still happens. The loss is just passive that year and carries forward. That is a worse outcome than many buyers are sold, but it is not a loss of the deduction.

The paybackDepreciation recapture when you sell

Bonus depreciation moves the deduction forward; it doesn't make it permanent. When you sell, the IRS taxes the depreciation you took. The fast-written parts are taxed harder than the building:

• 5- and 7-year property (§1245): recaptured at your ordinary income rate.
• 15-year land improvements: the part of bonus depreciation above straight-line is also ordinary income (§1250). The rest of the depreciation is taxed at up to 25%.
• The building's straight-line depreciation: unrecaptured §1250 gain, up to 25%.

In plain dollars, with no discounting, the study comes out slightly behind ($4,831 vs. $5,176), because part of what you deducted at 32% comes back at 32% instead of 25%. Its value is timing: about $32,000 of tax stays with you in year one instead of over 27.5 years. Discounted at 5% a year, that roughly doubles the value of the tax effects. If you hold for longer, sell for more, or the furniture is worth little at sale (which lowers the §1245 portion), the picture changes. A 1031 exchange into another property can defer recapture entirely.

Compared withWhy a long-term rental doesn't get this

The same $100,000 loss on a house rented by the year would run into the $25,000 active-participation allowance. That allowance phases out by $1 for every $2 of modified AGI above $100,000, so it's $15,000 at $120,000 and zero at $150,000 (IRC §469(i)). Above that income, the loss waits for future rental profits or the sale. Our rental property depreciation guide works that case through. The difference between the two is why the seven-day test matters more than the property itself.

Short stays bring their own costs: furnishing, cleaning, platform fees and swings in occupancy. Before the tax benefit decides a purchase, run the property through the Airbnb profitability calculator. Then check its cap rate at today's mortgage rates. A deduction never rescues a property that loses cash every month.

The recordsWhat to keep from day one

The IRS challenges these losses on facts, not formulas. Tax Court cases on material participation usually turn on whether the hours were written down at the time.

The Rental Income Tracker handles the stay side. Log each booking with its check-in and check-out dates and channel, and the dashboard shows nights booked and the number of bookings. Divide one by the other and you have the average stay the seven-day test asks for. Its Taxes tab estimates straight-line depreciation from the price and land value. It doesn't model cost segregation or bonus depreciation, so take those figures from the study. It also doesn't log your hours; keep those in a separate dated log. Our guide to tracking rental income and expenses covers the rest of the bookkeeping, and repairs vs. improvements covers how work done after purchase is depreciated.

Where these numbers come from

• Rules: IRC §469(c)(2) (rental activities are passive), §469(h) and Treas. Reg. §1.469-5T(a) (material participation tests) and §1.469-5T(f)(2)(ii)(B) (investor-type work). Treas. Reg. §1.469-1T(e)(3)(ii)(A) (the seven-day exception) and §1.469-1(e)(3)(iii) (average period of customer use). IRC §469(i) ($25,000 allowance), §280A (personal use), §461(l) (excess business loss; 2026 amounts in Rev. Proc. 2025-32), §168(k) as amended by the One Big Beautiful Bill Act (Pub. L. 119-21) and IRS Notice 2026-11 (100% bonus depreciation for property acquired after January 19, 2025). IRS Publications 527 and 946, and the IRS Cost Segregation Audit Techniques Guide.
• The property: $500,000, 20% land, closing costs ignored (adding them raises the basis slightly). Placed in service November 2026; the building uses the mid-month convention (1.5 months in year one). Cost segregation share of 25% ($60,000 in 5–7-year property, $40,000 in 15-year property) is an assumption; a real study can come in higher or lower.
• Tax: 2026 federal brackets from the IRS inflation adjustments for tax year 2026. Operating income before depreciation is assumed to be about zero in the first two months. No state tax: several states, including California, don't follow federal bonus depreciation, which shrinks the state-level benefit. The 3.8% net investment income tax and self-employment tax are not modeled. Hotel-like services can move a short-term rental onto Schedule C and make it subject to self-employment tax.
• The sale: December 2031 at $500,000, no selling costs. Recapture at a 32% ordinary rate and 25% on the §1250 portion. The 15-year property's straight-line equivalent is simplified to a 15-year straight line, and every deduction is assumed usable at 32% in the year taken. Treating all contents as §1245 property is the worst case for the study. Discount rate 5%. Script: drafts/short-term-rental-tax-loophole-numbers.mjs.
• Hours: 65% occupancy, 4-night average stay and 2.5 cleaning hours per turnover are assumptions chosen to show the comparison; use your own.

FAQFrequently asked questions

What is the short-term rental tax loophole?
If your rental's average guest stay is seven days or less and you materially participate, the activity isn't treated as a passive rental. Its losses, mostly from depreciation, can then offset W-2 and other active income.

How many hours do I need for material participation on an Airbnb?
Usually either 500 hours in the year, or more than 100 hours and no less than any other person, including your cleaner and co-host. Five other tests exist but apply less often.

Does the seven-day average apply per property?
Yes. The average period of customer use is computed for each property for the tax year: total days rented divided by the number of separate stays.

Is bonus depreciation still 100% in 2026?
Yes, for property acquired after January 19, 2025. The One Big Beautiful Bill Act made 100% bonus depreciation permanent, and IRS Notice 2026-11 gives interim guidance on claiming it.

Can I buy in December and take the deduction this year?
Only if the property is ready and available for rent by December 31, and the year's stays and hours meet both tests. Closing alone is not enough. If you miss the tests, the loss carries forward as a passive loss.

Do I pay the depreciation back when I sell?
Yes. Depreciation on 5- and 7-year property is recaptured at ordinary rates, and building depreciation at up to 25%. The benefit is mostly the time value of paying tax later, unless you defer it again with a 1031 exchange.

Before you buy for the deduction

Run the property first and the tax second. Check the cash flow in the Airbnb profitability calculator. Once it is rented, log every stay in the Rental Income Tracker so the seven-day average is a number you can show. When the time comes to sell, the Capital Gains Calculator estimates the gain that recapture is taxed from.