Cost Segregation for Commercial & Short-Term Rental Owners
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Minimum ROI

Our study identifies at least 20x its fee in first-year deductions on commercial property, or at least 30x on a short-term rental, or it is free.

Why Basis

Positioning, plainly stated  |  Updated July 2026

Every other cost segregation firm sells the one study it knows how to make. We do not make studies. That is the entire reason we can put both versions in front of you and tell you the truth about which one your building actually needs.

The problem with asking a firm which study you need

A national engineering firm will tell you that you need a full engineered study, because that is what it produces. A software provider will tell you its automated study is sufficient, because that is what it produces. Both answers are sincere and both are structurally compromised. Neither firm can recommend the other's product without losing the sale.

Basis is an advisory and a brokerage. Our engineering team is a partner firm rather than an in-house production line we have to keep busy. Normally that is the thing a company in our position would hide. We lead with it, because it is the only reason our recommendation is worth anything to you.

Basis compared honestly

BasisNational engineering firmSoftware-only provider
What they sellBoth tiers, plus a recommendation on which one your building needsOne engineered study, the only product they makeOne automated study, the only product they make
Audit supportFull representation on the engineered tier. Support only on the lower tier, and we say so before you buyFull representationUsually support only. Your CPA stands in front of the audit
Minimum ROI guaranteeYes, in writing. At least 20x the fee in first-year deductions on commercial, 30x on a short-term rental, or it is freeRare. Some refund fees only if an audit produces an adjustmentNo
PricingPublished ranges, then a per-property quote after you see your estimated benefit. The fee is capped by the guaranteeQuote only, usually after a sales callPublished rate card, with no floor on what you get back
Will they turn you awayYes. We screen whether you can use the deduction this year before we quoteRarelyNo. The checkout does not ask
Best forOwners between roughly $300,000 and $10 million of basis who want the right tier rather than the only tierInstitutional portfolios, properties above roughly $30 million, and unusual or heavily engineered assetsSimple residential and short-term rentals where the owner accepts the tradeoff knowingly
Where they beat usNowhere we will not admit on this pageScale, in-house certified staff, decades of institutional history, and the depth to handle a $50 million industrial plant. If that is your building, hire themPrice and speed. If your property is straightforward, your basis is small, and you understand what a thin paper trail means, this is a rational purchase

The bottom row is the one that matters. If you own a $50 million industrial plant, hire a large national engineering firm, and we will tell you that on the call rather than after you have paid us. We are built for owners between roughly $300,000 and $10 million of basis, which is most of the market and the part of it that gets the worst advice.

The four things we will put in writing

1. Two real tiers, and the honest tradeoff between them

The engineered tier is produced by our licensed engineering team, carries full audit representation and errors and omissions coverage, and is what we recommend by default. The lower tier is software-driven, considerably cheaper, much faster, and carries a thinner engineering paper trail. That paper trail is what defends the deduction if it is ever questioned. We will tell you which one fits your building and why, and if you choose the cheaper tier anyway you will do it knowing exactly what you traded.

2. A minimum return, or you do not pay

Our study identifies at least 20 times its fee in first-year deductions on a commercial property, or at least 30 times its fee on a short-term rental, or it is free. It is a ratio rather than a dollar figure, so it holds regardless of what your particular study costs. We are not aware of another firm in this category that will put a floor on your return in writing.

3. Your number before you pay a dollar

You get a property-specific preliminary benefit estimate first, modeled from real parcel data on your building rather than from a slider on a calculator. Then you decide. Most firms in this category make you sit through a sales call before they will say a number, so here are ours.

Short-term & residential rentalEst. year-one depreciationSoftware tierEngineered tier (our default)
Under $300,000up to $60,000$1,200not offered
$300,000 to $700,000$30,000 to $140,000$1,800not offered
$700,000 to $1 million$70,000 to $200,000$2,200not offered
$1 million to $1.5 million$100,000 to $300,000$2,600$5,200
$1.5 million to $2 million$150,000 to $400,000$3,200$6,400
$2 million to $3 million$200,000 to $600,000$3,900$7,800
Commercial: office, retail, mixed use, warehouseEst. year-one depreciationSoftware tierEngineered tier (our default)
Under $1 millionup to $170,000$3,200not offered
$1 million to $1.5 million$120,000 to $255,000$6,000not offered
$1.5 million to $3 million$180,000 to $510,000$6,000$12,000
$3 million to $5 million$360,000 to $850,000$8,000$16,000
$5 million to $7 million$600,000 to $1.19 million$10,000$20,000
Above $7 millionBy proposal
Medical, restaurant, hospitality, self storage, car wash, manufacturing, data centerEngineered tier only
Any valueFrom $12,000, quoted by property. We do not sell a software study on these. Too much of the value sits in equipment and fit-out that has to be counted on site, and a study that guesses at it is a study we will not put our guarantee behind.

How to read the depreciation column: these are estimated first-year deductions, not cash. What a deduction is worth to you depends on your own bracket, so multiply by your marginal rate for a rough cash figure. Deductions are also the unit our guarantee is written in, which is why we quote them here rather than a savings number we would be guessing at. First-year deductions typically run 12% to 20% of a property’s value once land is taken out, which is why the ranges are wide. A restaurant or a heavily fitted-out building lands near the top, a plain warehouse near the bottom. Your actual number comes from the estimate we run on your building before you pay anything, and your CPA confirms it. Not tax advice.

Two things govern every one of those numbers, and both are in your favor.

The guarantee is also a price ceiling. Our fee can never exceed one twentieth of your estimated first-year deductions on a commercial property, or one thirtieth on a short-term rental, because that is what the guarantee promises. When a building reclassifies at the low end, and medical offices and plain warehouses often do, the quote comes down or we decline the engagement. We would rather lose the fee than publish a floor we cannot hold.

The fee follows the finding, not the price of the building. Two commercial buildings worth the same money can support fees that differ by more than double, because one holds far more short-life property than the other. That is why you get your estimate before you get your quote.

4. We will tell you no

A study only pays off this year if you can use the loss this year. We screen that before we quote, not after. If the honest answer is that your deduction will suspend until you sell, we will say so and you will not get a proposal from us. The firms that never disqualify anyone are not being generous. They are being paid either way.

First, can you actually use the deduction this year?

This is the question most firms skip, and skipping it is how owners end up paying for a study that does nothing for them in the current year. A cost segregation study creates a large paper loss. Whether that loss offsets your other income this year depends on you, not on your building.

You can generally use it against active income now if you materially participate in a short-term rental (average guest stay of seven days or less, and you run it yourself rather than handing it to a property manager), if you hold Real Estate Professional status, or if you have passive income to offset. If you own a long-term rental, use a property manager, and have no passive income, the loss is still real but it suspends and releases later, usually on sale. That is a deferral, not a first-year win.

We screen for this before we quote. If your answer is the suspended case, we will tell you, and we will tell you why waiting may serve you better.

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Frequently asked questions

Basis does not produce studies in house. So what am I paying for?

Two things. First, the recommendation: which tier your building actually needs, and whether you should run a study at all this year. Second, the guarantee: we put a minimum return in writing and we absorb the risk if our estimate was wrong. A firm that only makes one kind of study cannot offer you the first and has little reason to offer the second.

Is a cheaper software-driven study bad?

Not automatically, and we sell them. The honest framing is that a software-driven study costs less and moves faster, and carries a thinner engineering paper trail. If your deduction is ever questioned, that paper trail is what defends it, and without it you can be exposed to back tax, penalties and interest. For a straightforward short-term rental with modest basis that can still be the right trade. For a complex commercial building it usually is not. We recommend the engineered tier by default and we tell you which case you are in.

Who signs the engineered study?

Our engineering team signs it, and they carry full audit representation and errors and omissions coverage on it. They are a partner firm rather than Basis payroll, and we say so plainly. Basis is your advisor and your single point of contact throughout.

What exactly does the guarantee cover?

It is a ratio, not a dollar amount, so it does not depend on what your study costs. Our study identifies at least 20 times its fee in first-year deductions on a commercial property, or at least 30 times its fee on a short-term rental, or the study is free. Deductions, not cash. If the number we modeled before you paid does not hold up, that is our problem rather than yours.

Why do you turn people away?

Because a study only pays off this year if you can actually use the loss. If you own a long-term rental, use a property manager, and have no passive income and no Real Estate Professional status, the deduction suspends and releases later, usually on sale. Selling you a study in that situation would be an easy sale and a bad one.

Sources

» Internal Revenue Code Section 168(k), additional first-year depreciation
» IRS Cost Segregation Audit Techniques Guide (Publication 5653)
» IRS Publication 946, How To Depreciate Property
» Treasury Regulation §1.168(i)-8
» IRS Form 3115, Application for Change in Accounting Method
» Hospital Corporation of America v. Commissioner, 109 T.C. 21 (1997)
» Submarket rent, capitalization rate, and vacancy figures compiled by the Basis property data engine from CBRE, Cushman & Wakefield, Newmark, and Colliers market reports. See Sources & Citations.

Basis Property Group is a cost segregation advisory and brokerage. It is not a certified public accounting firm or a law firm, and nothing on this page constitutes tax, legal, or accounting advice. Figures shown are preliminary and illustrative. Actual results depend on an engineered study and on your individual circumstances, including Pennsylvania state tax treatment, and are determined by you and your tax advisor.
Property Types
Multifamily & Apartments Hotels & Hospitality Restaurants Medical & Dental Retail & Industrial
IRS ATG Aligned  ·  Methodology per IRS Pub 946 & Treas. Reg. §1.168  ·  Engineering-based component studies  ·  Form 3115 / 481(a) look-back  ·  Works directly with your CPA
Basis analyzes commercial property using a proprietary data engine covering more than 14,000 Pennsylvania commercial and industrial parcels.
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Content reviewed against IRS Publication 946, Treasury Regulation §1.168, and the IRS Cost Segregation Audit Techniques Guide. For educational purposes only; this site does not constitute tax advice. Consult your CPA before filing. Not affiliated with the IRS.