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Engineered Cost Segregation Case Study

$1.8M accelerated on a single Roanoke Rapids automotive property.

Roanoke Rapids, NC

An engineered cost segregation study by the Cost Seg America team. Explore this property’s study results below.

$3,140,000

Cost Basis

$1,828,614

Reclassified into Faster Depreciation

58%

Reclassification Rate

One asset, 39 years, no questions asked.

By default, the IRS looks at a building and sees a single 39-year asset. On a $3,140,000 automotive property in Roanoke Rapids, that view would have released the owner's deductions in equal, unhurried pieces, near $81,000 each year, stretched across the better part of a lifetime.

There is nothing improper about the long schedule. It is simply the assumption you inherit if no one looks closer. And the tax code plainly invites a closer look: MACRS assigns different recovery periods to different kinds of property, and a great deal of what makes up a building was never 39-year property to begin with.

So the real question is never whether the deductions exist. It is when you get them. Slowly, over 39 years, or largely now. For this property, the gap between those answers runs to millions.

An automotive property is a workshop with walls around it.

An automotive service or dealership property is dense with the systems that serve the work, the lifts and bays, the specialty electrical and plumbing, the paved lot, and most of that carries a far shorter tax life than the building shell.

The Cost Seg America team analyzed this property the way the two engineering approaches the IRS ranks highest call for: component by component, across the whole property. Not a questionnaire, not a software estimate that runs the address through a template and returns an average. An actual engineering analysis of the structure, the site work, and the systems that a cheaper study never bothers to separate.

What an engineered study looks for in a property like this

  • Dedicated electrical and compressed-air systems serving lifts, bays, and equipment.
  • Specialty plumbing and drainage serving service operations.
  • Showroom and customer-area finishes and specialty lighting.
  • Paved lots, drives, curbing, site lighting, and landscaping across the parcel.

The result: $1,828,614, roughly 58% of the property's basis, was identified as shorter-life property and moved off the 39-year schedule into faster federal depreciation. That is not an estimate or a projection. It is what an engineered analysis documented on this building, to the standard the IRS publishes for its own examiners in the Cost Segregation Audit Techniques Guide.

You were always owed it. Now you get it sooner.

A study does not add a single deduction. The full $1.8M was the owner's all along. What it did was rearrange the timing, moving deductions the code had scheduled for later into the here and now.

Timing is the entire advantage. A dollar you deduct today can earn for you today; a dollar you deduct in 2050 has already lost ground to inflation and to every opportunity you passed up while waiting. That is why moving $1.8M forward is worth doing, it is a head start the tax code grants on purpose, and it costs nothing to take.

Current law only helps. Under the One Big Beautiful Bill Act, signed July 4, 2025, 100% bonus depreciation is permanent for qualifying property placed in service after January 19, 2025. Because an engineered study isolates exactly the property that qualifies, a result like this can be claimed in the first year rather than spread thin over the building's life.

What accelerating $1.8M is worth.

Reclassifying property is only half the story. The other half is what those accelerated deductions are worth once they are working for you now instead of decades from now. The figures below are illustrative, calculated from this study's real reclassified amount using the assumptions shown.

Illustrative first-year federal tax benefit: $676,587. Illustrative 10-year net present value of accelerating: $560,178.

Illustrative only, not a promise of results. First-year benefit assumes the $1.8M of reclassified property is deducted in year one under 100% bonus depreciation (permanent under the One Big Beautiful Bill Act for qualifying property placed in service after January 19, 2025) at a 37% federal tax rate. Net present value compares taking those deductions now versus the default schedule, discounted at 8% over 10 years. Federal figures only. Your actual benefit depends on your tax situation; your CPA determines what applies to you.

Common questions

Could a study like this be done on a building I bought years ago?
Yes. A look-back study reaches properties bought, built, or renovated as far back as ten years. Your CPA files one form, Form 3115, with the regular return, and the depreciation you should have taken already comes back as a single catch-up deduction this year, figured as a Section 481(a) adjustment. No amended returns, no reopened years.

Does a reclassification like this invite an audit?
Cost segregation is a recognized, IRS-documented practice with its own examiner guide, Publication 5653. If a return is examined, what carries the day is the quality of the study behind it. Every Cost Seg America study is built on the two engineering approaches that guide ranks highest, and the team's work has cleared more than 125 IRS audits with zero losses and nothing returned.

What happens to these deductions when the property sells?
Depreciation figures into a sale whether or not a property was cost segregated, and your CPA plans for it. For owners who hold for years, the value of large deductions taken now generally outweighs the treatment at sale, and a 1031 exchange can defer it. It is a planning matter, never a reason to leave the deductions unclaimed.

Would my building reclassify the same 58%?
Not necessarily. The share that reclassifies turns on how the building was built and fitted out and how much site work surrounds it, which is why results vary widely. The only way to know your figure is an engineered analysis, and a free proposal will estimate it before you spend anything.

An engineered cost segregation study on a Roanoke Rapids, NC automotive property reclassified $1,828,614 (58%) of a $3,140,000 basis into faster federal depreciation. Engineered, not estimated, by the Cost Seg America team.

Property details

15,157 SF

Building Size

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