5-Year, 7-Year, and 15-Year Property: Examples From Real Cost Segregation Studies
The Three Buckets That Matter
A cost segregation study moves basis out of a 27.5-year or 39-year building classification and into shorter MACRS classes. In practice, almost everything reclassified lands in one of three buckets: 5-year property, 7-year property, or 15-year property.
All three qualify for bonus depreciation, because the threshold under Section 168(k) is a recovery period of 20 years or less. That means the practical difference between the buckets matters less for the first-year deduction than it does for what happens afterward, and for how recapture is computed on sale.
What follows is a working list of what actually lands in each class, drawn from the kinds of components engineering-based studies identify, along with the reasoning that puts them there.
5-Year Property
The 5-year class captures most tangible personal property found inside a building. In residential rental property this includes appliances, carpeting and resilient flooring, window treatments, cabinetry and countertops that are not structural components, decorative and accent lighting, and furniture in a furnished rental.
In commercial property the list broadens: data and telecommunications cabling, security and access control systems, audiovisual systems, movable partitions and systems furniture, kitchen and break room equipment, walk-in refrigeration, signage that is not structurally integrated, and process or task lighting.
The category that owners most often miss is specialty utility infrastructure. Electrical, plumbing, gas, and air distribution that serves specific equipment rather than the building generally is personal property classified with the equipment it serves. A dedicated 220-volt circuit to a piece of machinery, the water and drain serving a specific process sink, and the compressed air drop at a workstation all belong here. The panel and the main distribution serving the whole building do not.
The test comes from Regulation 1.48-1(e) and the Whiteco factors: how permanently the item is attached, whether it was designed to be moved, how much damage removal causes, and how the item functions in practice.
7-Year Property
The 7-year class appears less often in building studies but shows up meaningfully in certain asset types. Office furniture, fixtures, and equipment fall here, as do many categories of machinery not assigned elsewhere in the asset class tables.
In hotels and furnished properties, some of the furniture and case goods land at 7 years rather than 5, depending on how the asset class tables map the specific item and the activity. In manufacturing, a substantial amount of production equipment carries a 7-year life under the activity-based asset classes in Revenue Procedure 87-56.
For first-year deduction purposes, the distinction between 5-year and 7-year is immaterial when bonus depreciation applies at 100 percent, since both are fully expensed. It matters if bonus is not claimed, if the property is subject to a state that decouples from bonus, or when computing depreciation in later years on assets that were not fully expensed.
15-Year Property
The 15-year class contains two very different things. The first is land improvements under Section 168(e)(3)(E): asphalt and concrete paving, parking lots, striping, curbs and gutters, sidewalks, site lighting and its underground conduit, fencing and gates, retaining walls, signage foundations, landscaping and irrigation, site utilities running from the property line, stormwater drainage and detention, pools and pool decking, playgrounds, and sport courts.
These are not part of a building and they are not personal property. The statute gives them their own class. On properties with large sites, retail centers, dealerships, RV parks, garden apartments, land improvements are frequently the largest reclassification category by dollar amount.
The second thing in the 15-year class is qualified improvement property: interior nonstructural improvements to a nonresidential building made after the building was first placed in service. QIP excludes building enlargements, elevators and escalators, and internal structural framework. For landlords who build out tenant space, correctly identifying QIP instead of capitalizing to the 39-year building is one of the most valuable classification decisions available.
Retail motor fuels outlets meeting the statutory test are also 15-year property, including the building itself.
Why the Classification Affects More Than Year One
With 100 percent bonus depreciation, all three classes produce the same first-year result: full expensing. The classification still matters for two reasons.
First, recapture. Section 1245 personal property, which includes the 5-year and 7-year assets, is recaptured as ordinary income on sale to the extent of depreciation claimed. Land improvements and QIP are Section 1250 property, which generally receives the more favorable unrecaptured gain treatment capped at 25 percent. A study that reclassifies heavily into 1245 property creates a different exit profile than one weighted toward land improvements. Our post on depreciation recapture covers the mechanics.
Second, states. Many states decouple from federal bonus depreciation and require an addback, in which case the actual recovery period governs the state deduction and the difference between 5, 7, and 15 years becomes real.
Seeing It Applied to Your Property
Every property has a different mix. A car wash is weighted toward 5-year equipment. An RV park is almost entirely 15-year land improvements. A medical office splits between specialty 5-year systems and site work. Stratum studies document each component, the class assigned, the basis allocated, and the authority supporting the classification.
Request a free estimate or book a call and we will walk through the likely mix for your property type.
Working the Deduction Into a Return
Component classification is only the first half of the work. Applying the resulting deductions against the right income, in the right year, is the half that determines what you actually keep. AE Tax Advisors covers that side of the analysis in their guide to building component analysis.