Cost Segregation for Commercial Buildings

Commercial buildings are depreciated over 39 years under IRS rules. That's a long time to wait for the full tax benefit of your investment. A cost segregation study identifies the components of your building that qualify for 5-year, 7-year, or 15-year depreciation — dramatically accelerating your deductions.

What Gets Reclassified in a Commercial Building?

The engineering team conducting your study will analyze every component of the building. In a typical commercial property, reclassifiable elements include:

Electrical systems: Dedicated circuits, specialty lighting, data/telecom wiring
Plumbing: Specialized fixtures, process piping, grease traps
Interior finishes: Flooring, wall coverings, ceiling treatments, cabinetry
Site improvements: Parking lots, landscaping, sidewalks, signage, fencing
HVAC components: Specialty ventilation, supplemental systems

Types of Commercial Buildings That Benefit

Cost segregation works for virtually every commercial property type, but we see the largest impact in:

Office buildings — particularly those with tenant improvements and build-outs
Retail centers and strip malls — extensive site improvements and specialized interiors
Industrial and warehouse facilities — heavy electrical, specialized flooring, loading docks
Medical and dental offices — see our guide on cost segregation for dental offices
Restaurants — kitchen equipment, specialized plumbing, and ventilation. Read more about cost segregation for restaurants

Example: A $3M commercial office building might yield $600,000–$1.2M in reclassified assets. With bonus depreciation still available, that could mean $150,000–$300,000+ in first-year tax savings.

New Construction vs. Existing Buildings

Cost segregation is valuable for both newly constructed and existing commercial buildings. For new construction, the study can be built directly from construction documents, making it more precise. For existing buildings, a look-back study with a Form 3115 filing lets you catch up on missed depreciation in a single year.

The ROI Is Substantial

A cost segregation study for a commercial building typically costs $8,000–$25,000 depending on size and complexity. The tax savings almost always exceed the study cost by a factor of 5x to 15x. Learn more about what a cost segregation study costs.

How Crane Financial Helps

We coordinate cost segregation studies as part of our comprehensive tax strategy engagement. Our process ensures the study integrates with your entity structure, retirement planning, and overall tax position — not just as a standalone report.

If you own commercial property and haven't explored cost segregation, the savings potential is substantial.