Cost Segregation in Montgomery County, Pennsylvania

Montgomery County is the classic Basis property: owner-operated suburban commercial buildings, held for cash flow, on land that is a modest share of total basis. If you own income-producing property in Montgomery County and you are depreciating the whole building on the 39-year schedule, there is almost certainly basis in it that belongs in a 5, 7, or 15-year life instead.

What a study frees up on a Montgomery County building

A cost segregation study takes a building apart on paper. An engineer identifies the components that wear out faster than the structure does, and assigns each one the depreciation life the tax code actually gives it. Carpet, removable flooring, decorative lighting, cabinets and millwork, appliances, and the electrical and plumbing that serves specific equipment move to a 5-year life. Furniture and certain fixtures move to 7. Land improvements, meaning the parking lot, sidewalks, landscaping, fencing and site lighting, move to 15. The shell and the general building systems stay on 39.

That reclassification matters more now than it did two years ago. The One Big Beautiful Bill Act, signed in July 2025, permanently restored 100% bonus depreciation for qualifying property acquired and placed in service after January 19, 2025. Bonus depreciation applies to property with a recovery life of 20 years or less, which is precisely the 5, 7 and 15-year buckets a study creates. The 39-year shell gets none of it. That is the entire reason a study is worth running.

Here is what that looked like on four real engineered studies:

First-year deductions landed between 16.1% and 21.4% of building basis. We quote conservatively against that band rather than against the 30% and 40% figures that circulate in this industry, because the number we give you before you pay is the number we then have to stand behind.

The Montgomery County submarkets, and what they mean for your basis

We track Montgomery County as 5 distinct submarkets rather than as one market, because the split between land value and building value moves considerably across them, and that split is what determines how much of your purchase price is even eligible for reclassification. Where land is a large share of the price, less of your basis is in play. Where the building carries the value, more is.

Current indicators across Lower Montco (Main Line), Kop – Upper Merion, Plymouth Meeting – Whitemarsh – Conshohocken, Blue Bell – Ambler – Fort Washington, and Lansdale – Horsham – Hatboro / Willow Grove:

These figures are market indicators, not a valuation of your property. We use them to sanity-check the building-to-land split on your parcel before we model your estimate, which is why the number we hand you is specific to your building rather than a percentage of a national average.

Which Montgomery County property types carry the most short-life basis

In Montgomery County the strongest candidates are suburban office along the Main Line and in King of Prussia, grocery-anchored and strip retail, medical and dental offices, and flex and light industrial buildings. As a rule, the more a building's cost sits in finishes, fixtures, specialty equipment and site work, the more a study finds. A restaurant or a medical office carries far more reclassifiable basis per dollar than a bare warehouse shell does. That is visible in the benchmark table above: the free-standing restaurant returned 21.4% of basis in first-year deductions while the medical clinic returned 17.2%.

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.

Why owners pick Basis

Every other cost segregation firm produces one kind of study, which means every other firm recommends the kind of study it produces. Basis does not produce studies. We source them, which is the only reason we can put both versions of the work in front of you and tell you honestly which one your building actually needs.

• Two real tiers, one honest tradeoff. An engineered study built by our engineering team with full audit representation and errors and omissions coverage, or a faster software-driven study at a lower fee with a thinner engineering paper trail. We recommend engineered by default and we tell you exactly what you give up if you do not take it.
• A minimum ROI, in writing, or it is free. 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 you do not pay for it.
• Your number before you pay anything. Property-specific, modeled from real parcel data, not a slider on a calculator.
• We will tell you no. If you cannot use the deduction this year we say so before we quote you, not after you have paid.

Read the full comparison, including where the big national firms beat us »

Frequently asked questions

Does cost segregation work on a Montgomery County property?

Yes. Cost segregation accelerates depreciation under Section 168 of the Internal Revenue Code, which is federal, so a Montgomery County building is treated the same as a building anywhere else in the country. What is local is the property data, the submarket, and who you work with.

What does a cost segregation study cost in Montgomery County?

Our pricing is published rather than hidden behind a sales call. Short-term and residential rental studies run from $1,200 on the software tier, and engineered studies start at $5,200 once a property clears about $1 million of basis. Commercial runs $6,000 software and $12,000 engineered between $1.5 and $3 million, scaling above that. Medical, restaurant, hospitality and other specialty property is engineered only. Every quote is then capped by the guarantee: our fee can never exceed one twentieth of your estimated first-year deductions on commercial, or one thirtieth on a short-term rental, and you see your estimate before you commit.

How much will a study actually free up on a Montgomery County building?

Across four real engineered studies on commercial buildings, first-year deductions ran between 16.1% and 21.4% of building basis. On a $2 million building that is roughly $320,000 to $430,000 of first-year deductions, which are write-offs and not cash. What that converts to in cash depends on your marginal rate and on your ability to use the loss this year.

Does Pennsylvania follow federal bonus depreciation?

Pennsylvania state treatment of depreciation can differ from the federal rules, so the state impact is not automatically the same as the federal impact. This is a reason to plan a study properly rather than a reason to skip one. Your CPA confirms the state effect before you file.

I bought the Montgomery County building years ago. Is it too late?

No. A Form 3115 change in accounting method lets you claim the depreciation you should have taken in prior years as a single catch-up deduction in the current year, without amending earlier returns. Longtime owners are often the largest first-year numbers we see.

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.