One asset, 39 years, no questions asked.
By default, the IRS looks at a building and sees a single 39-year asset. On a $845,575 industrial property in Indianapolis, that view would have released the owner's deductions in equal, unhurried pieces, near $22,000 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.
With industrial, the site often tells the story.
An industrial or warehouse property leans heavily on its shell, so it can reclassify a smaller share than a fitted-out building. The value that does accelerate tends to live in the site work and the electrical that serves equipment.
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
- Site work and land improvements: paved yards, parking, truck courts, site lighting, and landscaping.
- Dedicated electrical serving equipment and process loads, distinct from base building power.
- Specialty plumbing and systems supporting operations rather than the structure.
- Non-structural interior improvements where present.
The result: $364,894, roughly 43% 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.
Same deductions, far better timing.
Cost segregation invents nothing. The $365K was the owner's to claim from the start. What the study changed was the calendar, moving those deductions from years away to right now, where they matter most.
Here is why that matters so much. Money recovered today can be redeployed today, into the next property, into growth, into anything with a return. A deduction promised decades out is worth a fraction of the same deduction taken now, once inflation and lost opportunity take their cut. Accelerating $365K is, in blunt terms, a free head start the tax code was built to give.
The current law makes it sharper still. The One Big Beautiful Bill Act, signed July 4, 2025, made 100% bonus depreciation permanent for qualifying property placed in service after January 19, 2025. The 5-, 7-, and 15-year property an engineered study identifies is precisely what qualifies, which lets value like this hit in year one rather than crawling out over the life of the building.
What accelerating $365K 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: $135,011. Illustrative 10-year net present value of accelerating: $111,782.
Illustrative only, not a promise of results. First-year benefit assumes the $365K 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.
What owners ask about a result like this.
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 43%?
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 an Indianapolis, IN industrial property reclassified $364,894 (43%) of a $845,575 basis into faster federal depreciation. Engineered, not estimated, by the Cost Seg America team.