Short-term rental investors are starting to see their properties less as vacation homes and more as tools for maximizing depreciation, and the math is turning out in their favor.
There’s a quiet shift happening among short-term rental owners, and it’s not about smart locks or dynamic pricing software.
It’s all about tax strategy. More specifically, it’s about cost segregation, a practice that’s been used in commercial real estate for decades but is now finding its way into the Airbnb world.
For founders and entrepreneurs who already think about ROI, cash flow, and asset optimization, cost segregation isn’t some random loophole. It’s a legitimate, IRS-approved tactic that’s become even more powerful thanks to recent changes in tax laws.
And with short-term rental demand still on the rise, more property owners are realizing they’re leaving real money on the table by sticking with old depreciation methods.
How cost segregation works for Airbnb properties
Here’s the idea behind a cost segregation study that more Airbnb owners are commissioning: Instead of depreciating the entire rental property over the standard 27.5 or 39 years, an engineer-led study breaks down the property into its parts.
A short-term rental cost segregation includes things like furniture, appliances, flooring, cabinets, and even landscaping or decking, which can be reclassified into 5-year or 7-year property categories.
Why does this matter? Because when you utilize cost segregation for short-term rentals, you can use these shorter depreciation schedules.
That means you get to write off a much larger portion of your property’s value in the early years of ownership, instead of stretching it out over decades.
Here’s where Airbnb cost segregation gets really interesting for hosts who invest heavily in furnishing their spaces; think hot tubs, full furniture sets, smart thermostats, and outdoor kitchens.
All these upgrades often qualify for accelerated depreciation. In a fully furnished short-term rental, these items can represent a surprisingly big chunk of the total purchase price.
A case study with the numbers behind a $400K property
Let’s walk through a simple example. Suppose an investor buys a $400,000 short-term rental. A typical cost segregation study may find that about 20%–30% of that value qualifies for faster depreciation, that’s roughly $80,000 to $120,000 worth of property components.
Under the current bonus depreciation rules that came into effect with the “One Big Beautiful Bill” signed into law in 2025. It restored 100% bonus depreciation for property bought after January 19, 2025, meaning the entire reclassified amount can potentially be deducted in year one.
The IRS confirms that this bill made the 100% bonus depreciation deduction permanent for property acquired after January 19, 2025.
So, instead of waiting decades to recover that portion, an investor could deduct $80,000 to $120,000 from their taxable income in the very first year of ownership. That kind of early, sizable deduction can really change the math on a deal.
Combining the STR tax loophole with cost segregation
Now this gets even better for high earners. There’s a well-known short term rental tax loophole that lets STR owners actively manage their property. Think average stays under 7 days, plus meeting one of the IRS’s material participation tests, which treats rental losses as non-passive.
Basically, that means these losses, including the big first-year depreciation from a cost segregation study, can help offset other taxable income, like W-2 wages, business income or other active earnings. For a founder or executive in a high tax bracket, a paper loss from depreciation translates into a real cut to their overall tax bill, not just their rental income.
This combination; accelerated depreciation and non-passive loss treatment, is why platforms focused on Airbnb cost segregation are drawing so much interest from real estate investors who want to shrink their IRS bill by the book.
The demand side is real too
It’s not like this is happening in isolation; short-term rental supply is growing quickly. AirDNA reports that active STR listings in the US jumped significantly year over year, meaning more properties are coming online and could benefit from these types of tax strategies.
FAQs
Can you do a cost segregation study on an Airbnb?
Yes. Any property that generates income, including short-term rentals, can be the subject of a cost segregation study as long as it’s used for business.
Is cost segregation worth it for short-term rentals?
For most STR owners with properties worth more than about $200,000–$300,000, the upfront cost of the study is usually overshadowed by the tax savings, especially with bonus depreciation rules in effect.
What does a cost seg study cost for an Airbnb?
Prices vary, but most studies range from a couple of thousand dollars up to several thousand, depending on the size and complexity of the property.
For investors who already optimize pretty much everything else about their business, cost segregation is just another smart move.
