What Is a Cost Segregation Study?
A cost segregation study is an IRS-approved engineering analysis that reclassifies components of a commercial or residential rental property into shorter depreciation categories—typically 5, 7, or 15 years instead of the standard 27.5 or 39 years. This front-loads depreciation deductions, significantly reducing taxable income and improving cash flow in the early years of ownership.
This strategy is commonly used alongside the bonus depreciation rules to maximize first-year deductions, and is often integrated into broader planning such as a 1031 exchange. Investors frequently evaluate its impact within the real estate tax strategy comparison guide or combine it with long-term investment structures like Opportunity Zone investments to enhance overall tax efficiency.
How Cost Segregation Works
A cost segregation study breaks a property into individual components and assigns each component to the appropriate depreciation schedule. Engineers and tax professionals identify assets such as personal property, land improvements, and building systems, allowing you to accelerate depreciation and increase early tax deductions.
Instead of depreciating the entire building over decades, portions of the property are separated and depreciated faster, resulting in immediate tax savings and improved investment returns.
What Gets Reclassified?
5-Year Property
- Carpeting and flooring
- Appliances
- Specialized electrical systems
- Decorative fixtures and finishes
7-Year Property
- Furniture
- Fixtures
- Equipment
15-Year Property
- Parking lots
- Landscaping
- Sidewalks and curbs
- Fencing and exterior improvements
Cost Segregation + Bonus Depreciation
Cost segregation becomes even more powerful when combined with bonus depreciation. This allows investors to immediately deduct a large portion—or in some cases all—of qualifying components in the first year.
Although bonus depreciation is currently phasing down, it still provides significant upfront tax savings when paired with a properly executed cost segregation study.
Who Benefits Most from Cost Segregation?
- Commercial real estate investors
- Multifamily property owners
- Investors who recently purchased property
- High-income real estate professionals seeking tax reduction
Cost Segregation ROI — Is It Worth It?
A typical cost segregation study costs between $5,000 and $15,000, depending on the size and complexity of the property. However, the tax savings often range from 6 to 10 times the cost in the first year alone.
For most investors, this makes cost segregation one of the highest ROI tax strategies available in real estate.
Can I Do a Cost Segregation Study on an Existing Property?
Yes. A lookback cost segregation study allows you to claim missed depreciation on properties you already own without filing amended tax returns. This is done through a change in accounting method under IRS Rev. Proc. 2015-13.
This means you can unlock significant tax savings even if you purchased the property years ago.
Combining Cost Segregation with 1031 Exchanges
Many investors combine cost segregation with 1031 exchanges to maximize tax efficiency. The strategy involves purchasing a property, applying cost segregation to accelerate depreciation, and then exchanging into a larger asset while deferring capital gains taxes.
This creates a powerful cycle of tax savings and portfolio growth over time.
Frequently Asked Questions
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