🇺🇸 Made in America·100% U.S.-Based Team · 24+ Years in Cost Segregation
Reggie runs a short-term rental management company outside Asheville, twenty-six units. Fourteen of them he manages the ordinary way: the owner holds the deed, Reggie's company handles bookings, cleanings, and guest messages for a percentage of revenue. The other twelve, Reggie leases directly from the property owners on multi-year master leases, then re-lists them nightly himself. Same hoodie, same laptop, same Airbnb dashboard. Two completely different tax situations sitting inside one business.
Last spring, one of his percentage-fee owners called and asked whether she could get a cost segregation study done on her cabin the way her neighbor had. Reggie said sure, of course, then spent twenty minutes trying to figure out whether he needed to be involved in that conversation at all. Two weeks later, he asked his own accountant whether he could do the same thing on one of the twelve units he leases and operates himself. His accountant's answer surprised him: no, and the reason why is the exact detail that separates a management company that sounds knowledgeable from one that actually is.
Most of what gets written about short-term rental taxes assumes one person: the owner who bought the property, lives nearby, and runs the listing themselves. That is not how a lot of the short-term rental industry actually works anymore. Management companies, co-hosts, and rental arbitrage operators sit between the property and the guest on a huge share of active listings, and almost nothing written about cost segregation addresses what changes when that middle layer exists. This article does.
"Short-term rental management company" covers two structurally different arrangements, and the tax treatment of each is not close to the same.
The percentage-fee model. The property owner holds title. The owner reports the rental income. The owner claims the depreciation. The management company is a vendor, paid a fee, usually 15 to 30 percent of revenue, for operating the listing, coordinating cleanings, and handling guests. The owner is the taxpayer who matters for every depreciation question in this article.
The master-lease or arbitrage model. The management company signs a lease directly with the property owner, pays fixed rent, and re-rents the unit nightly, keeping the spread between what they pay the landlord and what they collect from guests. In this structure, the management company is running its own short-term rental business, but it does not own the building.
Reggie runs both, under one company name, and the tax answers are different for each one. A manager who does not know which model applies to which unit in their own portfolio is going to give a client the wrong answer eventually, and in this business, the wrong answer usually costs someone real money.
In the percentage-fee arrangement, the property owner owns the building and the depreciable basis in it. A cost segregation study belongs to them, full stop. An engineered study identifies the components of the property, typically flooring, specialty lighting, low-voltage wiring, security systems, dedicated electrical, and site improvements like driveways, fencing, and landscaping, that qualify for 5-year or 15-year MACRS treatment instead of riding the standard depreciation schedule for the building shell. Under the One Big Beautiful Bill Act, that reclassified amount can generally be deducted in full in Year 1, for property placed in service after January 19, 2025, instead of spread out over years.
Here is the part a management company genuinely needs to understand, because it changes what you can honestly tell a client. Getting that deduction to offset the owner's W-2 income, rather than sitting as a suspended passive loss, requires two things: the property's average guest stay has to be seven days or less (nearly automatic for a typical short-term rental), and the owner has to materially participate under one of the IRS's seven tests. The two tests owners hit most often are working more than 500 hours on the property during the year, or working more than 100 hours with no one else, including the management company, putting in more hours than they did.
That second clause is the one that matters to you. If your company is running a fully outsourced listing, handling every guest message, every turnover, every maintenance call, and logging real hours doing it, and the owner never touches the property beyond signing your monthly invoice, the owner may not clear the 100-hour test at all. Your hours as the manager do not count toward the owner's material participation. They can actually work against the owner clearing it, because the more of the operation you run, the harder it becomes for the owner to argue they were the most involved person in the activity.
This is not a reason to manage a property less well. It is a reason to be straight with owner-clients about which material participation test actually fits their level of involvement, instead of promising a tax outcome that depends on hours they are not putting in. An owner who wants the full non-passive treatment and is otherwise fully hands-off may need to lean on the 500-hour test through their own direct involvement in bigger decisions, pricing strategy, vendor selection, guest issue escalation, rather than assuming the 100-hour test covers them by default. Get this wrong in a conversation with a client, and you have set them up to fail an audit through no fault of the cost segregation study itself.
Put two of Reggie's own owner-clients side by side. Owner A calls Reggie's team for everything, never checks the booking calendar, and has never spoken to a guest. Reggie's staff logs roughly 260 hours a year on that property. Owner A cannot clear the 100-hour test, because Reggie's team already put in more than double that. Owner A would need to document more than 500 hours of their own participation to get non-passive treatment, which is not realistic for someone who outsourced everything on purpose. For Owner A, the cost segregation deduction is still real and still worth claiming, it just sits as a passive loss unless Owner A has other passive income to absorb it, or unless Owner A materially changes how involved they are.
Owner B calls Reggie's team for cleaning and guest messaging only, but personally handles pricing strategy, approves every maintenance vendor, negotiates the annual insurance renewal, and reviews every guest dispute personally. Reggie's team logs about 90 hours on that property. Owner B's own hours, once tracked, come out to around 140. Owner B clears the 100-hour test, and beats Reggie's team's hours in the process. Same management company, same fee structure, same platform. Two completely different tax outcomes, because the actual division of labor was different. A manager who understands this distinction can tell Owner A the truth before their CPA has to, and can tell Owner B exactly what to keep documenting to protect what already works.
If your company operates on the master-lease side, here is the answer straight, no hedging: you do not own the building, so you do not have a depreciable basis in it, and you cannot order a cost segregation study on a property you lease from someone else. The property belongs to your landlord. So does its depreciation schedule, its cost segregation opportunity, and its recovery period.
There is a second detail that surprises even experienced arbitrage operators. The landlord's lease to you is typically a standard, longer-term commercial or residential lease, not a series of transient guest stays. The average-period-of-customer-use test that unlocks the short-term rental exception looks at the landlord's actual customer, which is you, the lessee, under a lease that likely runs a year or more. That means the landlord's rental income from leasing to your company generally does not clear the seven-day rule on its own, regardless of how quickly you turn the unit over to guests afterward. For the landlord, that rental income and any related depreciation is ordinary passive rental activity unless the landlord separately qualifies as a real estate professional or otherwise materially participates in something distinct from what you are doing downstream. A management company that tells an arbitrage landlord "you can use this to offset your W-2 income" without qualifying that statement is giving advice that is very likely wrong, and it is the kind of overreach that damages trust the moment a client's CPA reads the actual regulation.
None of this leaves the arbitrage operator with nothing. The furniture, appliances, smart locks, security systems, and other personal property you purchase and own for the unit you are subleasing are yours, not the landlord's, and you can depreciate them under the normal rules, including Section 179 expensing or bonus depreciation where they qualify, because you are the owner of that property even though you are not the owner of the building. It is a smaller deduction than a full cost segregation study on real property, but it is real, it is yours, and it is worth claiming properly rather than leaving on the table because nobody separated it from the building-level conversation.
There is one more category worth a conversation with your CPA if you are building out the interior of a leased unit yourself, new flooring, a reconfigured kitchen, built-in shelving, that kind of work. Interior improvements a tenant makes to a nonresidential building can potentially qualify as Qualified Improvement Property, a specific 15-year MACRS category that is generally bonus-depreciation eligible. Whether a specific unit qualifies as nonresidential real property for this purpose, and whether a given improvement meets the definition, depends on the facts of your lease and the property itself, which is exactly the kind of question worth confirming before you file rather than after.
Reggie's mistake was assuming that because he ran the operation on all twenty-six units, he had the same tax position on all twenty-six of them. He does not, and once his accountant walked him through the distinction, it changed how he talks to landlords about the arbitrage units and how he talks to owner-clients about the percentage-fee units. Getting this right made him look sharper to both groups, not less capable, and it kept him from making a promise to a landlord that his own accountant would have had to walk back at tax time.
None of the above means cost segregation is irrelevant to your business. It means your value sits in a different place than owning the deduction yourself.
A management company sitting on top of a portfolio of owner-managed properties has information almost nobody else has in one place: purchase prices, placed-in-service dates, average nightly rates, occupancy patterns, and average length of stay, across every property in the book. That is precisely the data set needed to identify which client properties are strong cost segregation candidates and which are not. An owner sitting alone with one property often has no idea their cabin, purchased for $680,000 two years ago, is sitting on a $150,000-plus deduction they have never claimed. Their management company, looking at the whole portfolio at once, is in the best position to notice the pattern and say something.
That single observation, delivered honestly and without overpromising, is a retention tool most competitors in this business are not using. Short-term rental management is a commoditized service. Cleaning fees, dynamic pricing, and guest response times look similar across most companies in a given market. An owner who feels like their manager is actively looking out for their tax position, not just their occupancy rate, is an owner who does not shop around at renewal time. Flagging a client toward an engineered cost segregation study, and being straight about which owners qualify for material participation treatment and which do not, is the kind of advisory value that turns a vendor relationship into a long-term one.
Take a management company with 20 percentage-fee properties, averaging $550,000 in purchase price, all placed in service after January 19, 2025. Assume half of them, 10 properties, are owned by clients who are genuinely hands-on enough to clear material participation on their own. Cost Seg America typically identifies $200,000 to $450,000 in additional first-year federal deductions per $1 million of property value on a qualifying property. Applied to a $550,000 property, that is a realistic range of roughly $110,000 to $247,500 in additional Year 1 deductions per property.
Across those 10 properties, the aggregate deduction pool available to that manager's client base sits somewhere between $1.1 million and $2.475 million, deductions those owners were entitled to under existing law and were simply never told to claim. None of that money touches the management company's own tax return. All of it touches the manager's relationship with ten clients who now have a very good reason to stay.
Compare that to the cost of staying quiet. A manager who never mentions cost segregation to a qualifying client is not neutral. They are letting a client leave real money on the table year after year, money a competitor's advisory conversation could surface in a single phone call. In a business built on renewals and referrals, that silence has a price, even though nobody sends an invoice for it.
The same logic applies to the back book, not just new acquisitions. A property a client bought three or four years ago and never had engineered is not a closed door. The IRS allows a lookback study on property already in service, captured through a Section 481(a) accounting method change filed on Form 3115, without amending every prior year's return one at a time. Your CPA typically files that form as standard work on the return. For a management company that has been running the same portfolio for years, walking a handful of long-tenured clients through this catch-up is often the single most valuable conversation you can have with them, because the deduction has been sitting there the entire time you have been managing the property, waiting for someone to mention it.
The mistakes that show up most often on the management side are different from the mistakes an individual owner makes, and they are worth naming directly.
Telling every owner they qualify for the loophole, regardless of arrangement. An arbitrage landlord is not in the same tax position as a hands-on percentage-fee owner. Blending the two into one blanket pitch is inaccurate, and it is the fastest way to lose credibility with a client's CPA.
Not accounting for your own hours crowding out the owner's material participation. The more fully your company runs a property, the more carefully an owner needs to document their own hours to clear the 100-hour test, or lean on the 500-hour test instead. Say this out loud to clients before they assume the deduction is automatic.
Losing track of placed-in-service dates across the portfolio. Whether a property qualifies for 100 percent bonus depreciation under the One Big Beautiful Bill Act depends on when it was placed in service, not when the management contract started. A manager who conflates the two dates can send a client down the wrong path entirely.
Recommending a cheap, software-only study to save a client money. A rule-of-thumb study that skips a real component-by-component engineering review is the kind of methodology the IRS Audit Technique Guide itself flags as subject to challenge over its statistical validity. If a client's study falls apart in an audit, the referral came from you, and that reputational cost outlasts whatever the client saved on the study fee.
Assuming an arbitrage operator can claim the building's depreciation. The lease does not transfer ownership. It transfers the right to operate. Keep those two things separate in every conversation with a landlord or a subtenant, especially when structuring a new master-lease deal.
Every classification referenced in this article, five-year property, fifteen-year property, the building shell, follows categories the Cost Seg America team has verified against the IRS Audit Technique Guide, using IRS Approaches 1 and 2, the methodologies the guide itself treats as the most defensible. Every study is a component-by-component, engineering-level analysis performed by qualified engineers on the specific property, not a percentage pulled from a generic table.
The Cost Seg America team has defended 125-plus IRS audits. Zero losses. On a typical qualifying property, clients see $200,000 to $450,000 in additional Year 1 federal deductions per $1 million of property value, and every client gets lifetime audit support at no additional cost, for as long as they own the property. If your company manages a portfolio and wants a straightforward way to flag which client properties are strong candidates, the Cost Seg America team will work directly with you or with your owner-clients individually, whichever fits how your business operates, and will give a straight answer when a property or an arrangement does not qualify, not a sales pitch dressed up as one.
Cost Seg America works in each and every city in the country, 24-plus years strong, helping short-term rental owners, management companies, and the property owners behind arbitrage arrangements reduce their federal tax bill the way the law actually allows. The goal is never to tell every owner the same story. It is to look at the actual structure, the actual lease, and the actual hours, and tell each client the truth about what applies to them.
Can a short-term rental management company order a cost segregation study on a property it manages?
Only if the management company owns the property. In a standard percentage-fee arrangement, the property owner holds the depreciable basis and is the one who orders and benefits from the study. The management company can flag the opportunity to the owner, but the deduction belongs to whoever owns the building.
Can a rental arbitrage operator claim depreciation on a property they lease and sublease?
Not on the building itself. The landlord owns the depreciable basis. The arbitrage operator can depreciate personal property they purchased themselves for the unit, such as furniture and appliances, under normal rules, but the real property depreciation and any cost segregation study belong to the landlord.
Does the seven-day short-term rental rule apply to a landlord who leases to an arbitrage operator?
Generally, no. The rule looks at the average period of customer use for the taxpayer's own activity. A landlord leasing to an arbitrage operator under a longer-term lease is not renting to transient guests directly, so that income is typically treated as ordinary passive rental activity for the landlord, not short-term rental activity.
Does a management company's involvement affect an owner's material participation?
Yes. Hours worked by the management company do not count toward the owner's material participation, and a heavily outsourced property can make it harder for an owner to clear the more-than-100-hours test, since that test requires the owner to work more hours than anyone else involved, including the manager.
What size property makes sense for a cost segregation study?
Properties with a purchase price or basis of $250,000 or more generally justify an engineered study. Below that, the study cost can outweigh the benefit relative to standard depreciation.
Is 100 percent bonus depreciation still available in 2026?
Yes. The One Big Beautiful Bill Act made 100 percent bonus depreciation permanent for qualifying property placed in service after January 19, 2025, with no scheduled phase-down.
Can furniture and equipment I buy for a leased unit be depreciated even though I don't own the building?
Yes. Personal property you purchase and own, such as furniture, appliances, and smart-home equipment, can generally be depreciated under normal rules, including Section 179 or bonus depreciation where it qualifies, regardless of who owns the real estate. What you cannot depreciate is the building itself, since that basis belongs to the landlord.
Should a management company get a referral fee or commission for pointing owners toward a cost segregation study?
That is a conversation to have directly with a tax professional and with your own compliance policies in mind. What every management company can do without any conflict is simply tell an owner-client the opportunity exists and let the owner decide who they want to work with.
If you manage short-term rentals, whether on a percentage-fee basis, through master leases, or both, and want a clear read on which properties in your portfolio are strong cost segregation candidates, the Cost Seg America team can walk through it with you directly.
Email: info@costsegamerica.com
Phone: 1-888-365-5023
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