What a Cost Segregation Study Does to Your Depreciation

The categories that move to shorter lives are fairly specific: certain electrical and plumbing tied directly to equipment rather than the building's general systems, decorative millwork, carpet and other removable flooring, signage, and site improvements like landscaping, fencing, and paving. The structural shell, roof, and core building systems stay on the long depreciation schedule. A study on a Tampa medical office or retail strip typically reclassifies somewhere between fifteen and thirty percent of the purchase price into shorter categories, though the exact percentage depends heavily on the property type and how it was built out.

Assets reclassified into the shorter categories are generally eligible for bonus depreciation, which under current law allows a large percentage of that reclassified value to be deducted in the very first year of ownership rather than spread across five or seven years. Combined with a cost segregation study, this can turn a property that would have produced a modest first-year depreciation deduction under standard treatment into one that shelters a substantial amount of other taxable income in year one, which is the main reason investors commission a study shortly after closing rather than years into the hold.

Every dollar of accelerated depreciation lowers the property's basis just like standard depreciation does, and it comes due as recapture tax when the property sells - the components depreciated on shorter schedules are generally subject to ordinary income recapture rates on the full amount claimed, which can be a higher rate than the recapture treatment on the building itself. An owner who ran a cost segregation study, took large early deductions, and then sold a few years later without a deferral strategy in place can end up with a recapture bill that erases much of the cash benefit the study produced, especially on a short hold.

A professional cost segregation study on a mid-size commercial property typically runs several thousand dollars and takes a few weeks, and it generally makes more financial sense on a property held long enough, or with enough other income to shelter, that the accelerated deduction is worth more than the fee and the added complexity on the return. A smaller property, or one an owner already plans to sell within a year or two, often doesn't generate enough benefit to justify the cost, since the recapture exposure arrives that much sooner relative to the deduction taken.

Because a 1031 exchange defers both the capital gain and the recapture liability rather than triggering either one, an owner who has taken large cost segregation deductions and wants to sell without an immediate tax bill can roll the entire gain, recapture included, into a replacement property through an exchange rather than a straight sale. It's not a way to make the recapture disappear permanently, only to push the reckoning into the replacement property's eventual sale, but for an owner planning to keep capital working in real estate anyway, that timing shift is often the whole point of running the study in the first place.