Why 2026 Might Be the Best Year Ever to Run a Cost Segregation Study on Your Short-Term Rental
If you bought a short-term rental, got it guest-ready, and haven't thought about your taxes since, there's a good chance your accountant is depreciating your entire property in one straight line over 39 years. That's the IRS default when nobody decides to do otherwise.
That default could be costing you tens of thousands of dollars. And it only takes a few minutes to request a cost segregation study in order to find out exactly how much.
Here's what a cost segregation study actually does, and why this particular year presents one of the best windows in over a decade to run one.
What a Cost Segregation Study Does
Instead of treating your entire property as a single asset that depreciates over 39 years, a cost segregation study breaks it down piece by piece. Your appliances, furniture, flooring, landscaping, and amenities like a pool or hot tub don't last nearly as long as the building itself, so the study reclassifies them into much shorter depreciation categories, typically 5, 7, or 15 years.
The amount this reclassifies depends heavily on how the property is set up. A bare-bones building has less to reclassify. A fully furnished, amenity-loaded short-term rental typically sees 20% to 30% of its total value shift into these faster depreciation categories.
Why This Particular Year Matters So Much
Normally, that reclassified portion of your property still gets depreciated gradually, spread out over 5 to 15 years depending on the category. Bonus depreciation changes that timeline entirely, allowing you to take the full deduction in year one instead of spreading it out.
Here's what that difference actually looks like. Say $30,000 of your property qualifies for the faster depreciation schedule.
Spread out normally over five years, that's roughly $6,000 a year in deductions.
With bonus depreciation, it's the full $30,000 in year one.
A tax law passed last year restored bonus depreciation permanently at 100% for any property placed into service after January 19, 2025.
For a property in the $500,000 to $650,000 range, that general rule of thumb translates to somewhere around $120,000 to $160,000 in first-year deductions. Against a $100,000 W-2 salary, that can cover most or all of your taxable income for the year.
What It Actually Takes to Use This Strategy
Here's the part some people miss. None of this touches your W-2 income unless your rental activity stops being classified as "passive" in the eyes of the IRS. Two specific requirements have to be met.
First, your average guest stay has to be seven days or less. This is calculated by dividing total nights booked by total bookings, not by how the property is listed or marketed.
Second, you have to materially participate in running the property, meaning at least 100 hours of your own time managing it, and more hours than anyone else involved, including a property manager or cleaner.
Miss either requirement and the deduction stays trapped against your rental income only and never reaches your paycheck.
The Potential Tax Consequence Worth Understanding
If you sell the property later, you'll owe recapture on what you depreciated. Used correctly, this strategy is still an enormous advantage. It functions like borrowing against your own future tax bill instead of paying it now.
It is important to note, however, that - if you eventually sell in a taxable transaction - some or all of the depreciation you've claimed can affect the taxes due on the sale, including potential depreciation recapture.
But the tax bill doesn't necessarily come due when you sell. If the property qualifies for a 1031 exchange, you may be able to roll the proceeds into another investment property and defer both the gain and the tax consequences associated with the depreciation you've taken. The tax liability generally carries forward into the replacement property rather than disappearing and sophisticated investors can continue exchanging from property to property, potentially deferring that tax for years or even decades.
That said, if you get sloppy about tracking your hours or planning your eventual sale, and what started as a powerful advantage can turn into an unpleasant surprise down the road.
The Bottom Line
If you own a short-term rental and haven't run a cost segregation study, there's a real chance you're leaving a huge, potentially five or six-figure deduction, sitting on the table for no reason at all except that your CPA didn't understand or educate you on all of the options.
As a CPA and Texas Real Estate Strategist, this is the kind of conversation I have with my clients before they miss another tax year without capturing this benefit. As always, please talk to a practicing CPA who specializes in short-term rentals before you file anything based on this strategy.
Beth Perkins REALTOR®, RSPS, CPA, MBA
Texas Real Estate Strategist
📞 512-797-7349
📧 beth@beth-perkins.com
This content is for educational purposes only and is not legal, tax, or financial advice. Please consult a licensed CPA regarding your specific situation.
