If you own a medical office building, you already know healthcare real estate is one of the most resilient commercial property sectors. Tenants sign long leases, demand stays steady, and rental rates continue to climb. However, many owners do not realize their property may be sitting on a significant depreciation opportunity.
That opportunity is a cost segregation study, an engineering-based analysis that separates a building into individual components and reclassifies qualifying assets into shorter IRS depreciation categories. When paired with 100% bonus depreciation under the One Big Beautiful Bill Act (OBBBA), the financial impact can be substantial.
Medical office buildings are especially well suited for cost segregation because they contain specialized infrastructure that standard offices do not. As a result, owners may be able to accelerate a larger portion of their property’s depreciation.
The Stakes: Why Medical Office Buildings Are Different
Most medical office building owners depreciate their structure over 39 years, the standard Modified Accelerated Cost Recovery System (MACRS) recovery period for commercial real estate. For example, if your building cost $4 million excluding land, that produces roughly $103,000 in annual depreciation.
However, a medical office building is not simply a building. Instead, it is a specialized environment designed to support patient care, diagnostic imaging, procedures, and medical equipment. Therefore, many of its components may qualify for 5-, 7-, or 15-year depreciation instead of 39-year treatment.
Industry experience shows that medical office cost segregation studies may reclassify 25% to 38% of depreciable basis into shorter recovery periods. In some cases, highly specialized facilities may exceed 40%. By comparison, standard office buildings often fall closer to 15% to 25%.
Reclassification percentages vary based on construction quality, tenant build-out scope, site improvements, and other property-specific factors. Therefore, you should consult your CPA for a property-specific analysis.
The Framework: What Makes Medical Office Buildings Reclassify So Aggressively
A cost segregation firm examines how each component of a medical office building was designed, installed, and used. Specifically, the analysis may focus on the following areas.
1. Specialized Mechanical and Electrical Systems
Medical offices often require more robust mechanical systems than standard commercial spaces. For example, procedure rooms may need specialized ventilation, while diagnostic equipment may require enhanced electrical capacity.
Potentially reclassified components include:
- Medical gas systems, potentially classified as 5-year property
- Specialized HVAC for exam and procedure rooms, potentially classified as 5- or 7-year property
- Enhanced electrical capacity for diagnostic equipment, potentially classified as 5- or 7-year property
- Emergency backup generators and transfer switches, potentially classified as 5- or 7-year property
- Specialized plumbing for medical equipment, potentially classified as 5- or 7-year property
Because these systems may be separately identifiable, they could qualify for shorter recovery periods under IRS Publication 946, How to Depreciate Property. Nevertheless, the appropriate classification depends on each component’s function and relationship to the building.
2. Exam Room and Procedure-Space Build-Outs
Medical tenants typically require extensive interior build-outs. These improvements may include cabinetry, specialized lighting, modular wall systems, and clinical-grade finishes.
Depending on their function, qualifying components may be classified as 5- or 7-year tangible personal property rather than 39-year structural property. Furthermore, these costs can accumulate quickly in multi-tenant buildings with customized clinical spaces.
For instance, cabinetry installed to support medical equipment may receive different tax treatment from cabinetry that serves a general building function. Therefore, a detailed review is necessary to separate qualifying assets from structural components.
3. Site Improvements and Infrastructure
Medical office campuses often include substantial exterior improvements. Fortunately, many of these improvements may qualify for shorter depreciation periods.
Potentially qualifying assets include:
- Parking lots, access roads, and patient drop-off areas, potentially classified as 15-year property
- Landscaping, irrigation, and site lighting, potentially classified as 15-year property
- Underground utilities and drainage systems, potentially classified as 15-year property
- Signage and wayfinding systems, potentially classified as 5- or 15-year property
- Security and access control systems, potentially classified as 5-year property
Without a cost segregation study, these qualifying assets may remain buried in the building’s 39-year basis. Consequently, owners could wait decades to claim deductions that might otherwise be accelerated.
4. Radiation Shielding and Specialized Construction
Buildings containing imaging centers, dental suites, or radiation therapy rooms may include lead-lined walls, reinforced floors, and specialized shielding. Depending on their purpose and circumstances, some of these components may qualify for shorter recovery periods.
However, classification is not automatic. Instead, the analysis must determine whether each component serves a specialized business function or relates to the operation and maintenance of the building itself.
Because these distinctions can be highly technical, working with professionals who understand healthcare construction is especially important.
Example: A $4 Million Medical Office Building
Suppose you acquired a medical office building in 2025 for $4.5 million. Of that amount, $500,000 is allocated to non-depreciable land. Therefore, your depreciable building basis is $4 million.
Without a cost segregation study, the $4 million building basis depreciates over 39 years. As a result, the property produces approximately $103,000 in annual depreciation.
Now, suppose a cost segregation study reclassifies 32%, or $1.28 million, into 5-, 7-, and 15-year property.
If those assets qualify for 100% bonus depreciation, the reclassified amount could potentially be deducted in the first year. When combined with depreciation on the remaining building structure, the total year-one deduction could be approximately $1.35 million.
At a 37% effective tax rate, that deduction represents roughly $499,500 in potential year-one tax savings. By comparison, the simplified 39-year example would produce approximately $38,000 in tax savings. Therefore, the potential difference is about $461,500.
These simplified figures are illustrative. Actual results depend on the property, acquisition details, applicable tax law, and the owner’s individual tax situation. Accordingly, you should consult your CPA for personalized projections.
Your Medical Office Building Cost Segregation Checklist
If you own or are acquiring a medical office building, evaluate the following items with your CPA.
Confirm Your Placed-in-Service Date
First, determine when the property was placed in service. Then, confirm whether the property and its reclassified components qualify under current bonus depreciation rules.
If you have owned the property for several years, ask about a look-back study. This approach may allow you to recover previously missed depreciation without amending prior tax returns.
Inventory Specialized Systems
Next, document the building’s medical gas lines, enhanced electrical systems, backup generators, exam-room improvements, radiation shielding, and other specialized infrastructure.
Detailed construction records can help the cost segregation team identify qualifying assets. Therefore, gather invoices, blueprints, depreciation schedules, and contractor records whenever they are available.
Separate Tenant Improvement Costs
Tenant build-outs may include assets that qualify for shorter recovery periods instead of 39-year treatment. For example, specialized cabinetry, dedicated electrical systems, and certain removable finishes may qualify for accelerated depreciation.
However, these expenses may be grouped into broad construction categories in the original accounting records. A detailed cost segregation analysis can separate those costs and assign appropriate recovery periods.
Identify Site Improvements
Additionally, review parking lots, drainage systems, landscaping, exterior lighting, signage, and similar assets. These improvements are often significant for medical properties because they must support patient access, emergency services, and high daily traffic.
As a result, site improvements can represent a meaningful portion of the total reclassification opportunity.
Engage a Firm With Healthcare Experience
Medical properties contain specialized components that a generic analysis may overlook. Therefore, choose a cost segregation firm with experience evaluating healthcare real estate and clinical build-outs.
A qualified provider should understand both construction details and relevant tax classifications. Moreover, the firm should be able to document how and why each asset received its assigned recovery period.
Coordinate With Your CPA Before Filing
Finally, coordinate the study with your CPA before filing your tax return. Accelerated depreciation may interact with passive activity loss rules, at-risk limitations, state tax rules, and your ownership structure.
Although a cost segregation study may produce a large deduction, your ability to use that deduction depends on your specific tax situation. Your CPA can determine how the results fit into your broader tax strategy.
The Bottom Line
Medical office buildings are already strong performers because of stable tenancy, growing demand, and reliable cash flow. However, depreciating the entire building over 39 years can overlook components that may be eligible for faster depreciation.
A cost segregation study identifies and documents those specialized assets. As a result, owners may be able to accelerate significant deductions and improve near-term cash flow. Furthermore, with 100% bonus depreciation available for qualifying property, the potential benefits can be substantial.
The question is not simply whether your medical office building qualifies. Instead, the question is whether you are working with the right team to identify, quantify, and document the accelerated depreciation available to you.
If you own a medical office building, or you are a CPA advising a client who does, request a complimentary benefit analysis from SegPro Solutions. We will review your property details and provide an estimate of your potential year-one depreciation benefit before you commit.
Frequently Asked Questions
What percentage of a medical office building can typically be reclassified through cost segregation?
Medical office buildings may reclassify roughly 25% to 38% of depreciable basis into 5-, 7-, and 15-year property. In addition, highly specialized facilities may potentially exceed 40%.
However, actual results depend on construction quality, tenant build-outs, site improvements, and other property-specific factors.
Does 100% bonus depreciation apply to medical office buildings purchased in 2025?
Potentially. Under OBBBA, qualifying property may be eligible for 100% bonus depreciation based on applicable acquisition and placed-in-service requirements.
However, bonus depreciation does not generally apply to the entire building. Instead, it may apply to qualifying assets reclassified into shorter recovery periods. Therefore, your CPA should confirm eligibility for your specific property and timeline.
Can I do a cost segregation study on a medical office building I have owned for several years?
Yes. A look-back cost segregation study may allow you to recover previously missed depreciation through a Section 481(a) adjustment without amending prior returns.
In many cases, your CPA may report the adjustment through Form 3115 as part of your current-year filing. As a result, you may be able to claim the missed depreciation in the current tax year.
How is a medical office building cost segregation study different from a standard office study?
The methodology is similar. However, medical buildings often contain specialized infrastructure, including medical gas systems, enhanced electrical capacity, radiation shielding, exam-room build-outs, and clinical HVAC systems.
Therefore, properly identifying these components requires familiarity with healthcare real estate and medical construction.
Will a cost segregation study trigger an IRS audit?
Cost segregation is an established tax strategy. Nevertheless, the quality and documentation of the study matter.
An engineering-based study performed by qualified professionals can provide support for the resulting classifications. Additionally, coordinating the study with your CPA can help ensure the findings are reported correctly.
