Cost Segregation for Commercial Real Estate: What Qualifies?
Commercial real estate is usually depreciated over a long period, but not every part of a property necessarily belongs in the building category. A cost segregation study separates qualifying components into shorter-lived asset classes, potentially moving depreciation deductions into earlier tax years. That can improve near-term cash flow, although the benefit depends on the property, the owner’s tax position, and current depreciation rules.
How commercial property depreciation normally works
When you purchase commercial real estate, the purchase price must first be divided among land, the building, and any other identifiable assets. Land is not depreciable. The building portion is generally depreciated over 39 years for federal income tax purposes, while certain equipment, furnishings, and land improvements may qualify for shorter recovery periods.
A standard closing allocation or fixed asset schedule may place most of the depreciable purchase price into the 39-year building category. That approach is simple, but it may overlook components that function more like equipment, specialized systems, or site improvements than part of the building structure.
Cost segregation takes a closer look. Rather than treating almost everything as one building asset, the study analyzes construction records, property plans, invoices, photographs, and other available information. Qualifying costs may then be assigned to shorter-lived categories, commonly including 5-year, 7-year, or 15-year property.
The total depreciable basis does not increase simply because a study is performed. Cost segregation changes the timing of deductions. The goal is to recognize eligible depreciation sooner rather than waiting for those deductions over several decades.
Commercial properties that may qualify
Many income-producing commercial properties can be evaluated for cost segregation. Examples include office buildings, retail centers, restaurants, hotels, medical facilities, warehouses, manufacturing properties, self-storage facilities, and mixed-use developments. Properties used directly in an operating business may also qualify, provided the owner has depreciable tax basis in the property.
A property does not have to be newly constructed. A study may be performed after a purchase, renovation, expansion, or major tenant buildout. An owner may also be able to study a property that was placed in service in an earlier tax year. In some situations, an accounting method change can be used to claim allowable depreciation that was not previously taken without amending every prior return.
The strongest candidates tend to have a meaningful depreciable basis and a noticeable amount of specialized construction, equipment, or exterior improvements. A plain building with few improvements may produce a smaller benefit than a restaurant, manufacturing facility, hotel, or medical office with extensive electrical, plumbing, finish, and equipment-related costs.
Ownership structure matters as well. The study generally belongs with the taxpayer or entity that owns the depreciable property. Tenants may sometimes commission studies for leasehold improvements they paid for and own for tax purposes. The lease, construction contracts, and fixed asset records should be reviewed before assuming who is entitled to the deductions.
Building components that may receive shorter lives
Potential 5-year or 7-year property may include certain removable floor coverings, decorative finishes, cabinetry, specialty millwork, dedicated electrical connections, and plumbing that directly serves qualifying equipment. Restaurant equipment connections, manufacturing power distribution, data cabling, and specialized medical systems are common areas for analysis. Qualification depends on how each component is installed and used, not merely what it is called on an invoice.
Certain exterior improvements may qualify as 15-year land improvements. Depending on the facts, this category can include parking areas, sidewalks, fencing, landscaping, exterior lighting, drainage features, and some site utilities. The cost of the land itself remains nondepreciable, even when related site improvements can be depreciated.
Structural components generally remain with the commercial building. These commonly include the foundation, structural walls, roof, general building electrical system, standard plumbing, elevators, and heating or cooling systems that serve the building as a whole. A system does not become short-lived property simply because it was expensive or installed during a renovation.
The distinction is often based on function. An electrical branch that powers the general building may remain 39-year property, while a dedicated connection serving a specific piece of business equipment may receive different treatment. A defensible study documents these distinctions and explains the tax basis for each classification.
How accelerated depreciation affects the tax benefit
After shorter-lived assets are identified, they are depreciated under the rules applying to their asset classes and placed-in-service dates. Some assets may also qualify for bonus depreciation under federal law. Bonus depreciation rules have changed over time and may change again, so owners should not rely on an old percentage or a projection prepared under prior law.
Accelerated deductions can reduce current taxable income, but a larger depreciation deduction does not always create an immediate dollar-for-dollar tax benefit. Passive activity rules may limit rental losses. At-risk limitations, basis restrictions, business losses, or a low-income year can also delay or reduce the current benefit. Suspended deductions may still have future value, but the timing should be included in the analysis.
Montana owners also need to consider state treatment. State depreciation rules do not always match federal rules in every year or for every provision. A federal cost segregation benefit may therefore produce a different Montana result. Your preparer should model both returns instead of assuming the federal calculation carries over without adjustment.
Accelerating depreciation can also affect taxes when the property is sold. Some deductions may be subject to depreciation recapture or other gain rules. That does not automatically make cost segregation a poor strategy, but it means the decision should consider the expected holding period, future sale plans, current tax rates, and the value of receiving tax savings sooner.
What a reliable cost segregation study should include
A reliable study should begin with accurate tax basis information. For a purchased property, that may include the closing statement, purchase agreement, appraisal, and any allocation among land, building, furniture, equipment, or other assets. For newly constructed or renovated property, useful records include contractor invoices, construction draws, change orders, blueprints, and project cost reports.
The analysis should connect actual property components to their costs. When detailed invoices are unavailable, reasonable estimating methods may be used, but the assumptions should be documented. A report that simply assigns broad percentages without analyzing the property is harder to defend if the classifications are questioned.
The final report should provide a clear asset schedule, recovery periods, methodology, property description, and support for the classifications. Photographs, plans, cost records, and explanations of major asset categories can strengthen the file. The study should also coordinate with the tax return so the beginning basis and previously claimed depreciation agree with the owner’s records.
Keep the completed report with the property’s permanent tax documents. It may be needed years later when the property is refinanced, renovated, partially disposed of, or sold. Good records also help prevent components from being depreciated twice or omitted from the eventual gain calculation.
How to decide whether a study makes sense
Start with a preliminary estimate rather than ordering a study based only on the purchase price. The estimate should consider depreciable basis, property type, placed-in-service date, expected reclassification, current depreciation rules, ownership period, and the owner’s ability to use additional deductions. A larger property may offer a larger gross deduction, but tax usability is what creates practical value.
Timing is important. A study can be particularly useful after acquiring, constructing, or substantially improving a property. It can also be considered during a high-income year, before a planned ownership change, or while reviewing an older depreciation schedule. Owners should coordinate the study before filing when possible, although options may exist for properties already being depreciated.
Cost segregation is not only for large national developers. Smaller commercial properties can qualify, but the expected tax benefit should comfortably justify the study cost and additional tax work. Owners with passive losses they cannot currently use, a very short holding period, limited tax basis, or plans to sell soon may need a more cautious analysis.
Marlow Accounting provides cost segregation studies for residential and commercial properties and can help evaluate the tax context around the study. Cory Marlow is an IRS Enrolled Agent federally licensed by the U.S. Treasury. Before moving forward, gather your closing documents, depreciation schedule, improvement records, and recent tax returns so the potential benefit can be evaluated using your actual facts.
A quick disclaimer
This article is general information and is not tax, legal, or accounting advice for your specific situation. Cost segregation results depend on the property, ownership structure, placed-in-service date, current law, and your ability to use the resulting deductions.
To discuss your property, call Marlow Accounting at (406) 290-1214 or schedule a free consult. The office is located at 1643 24th St W Ste 102, Billings, MT 59102.