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Cost Segregation Studies Built for Tax Savings and Defensibility

Engineering-backed cost segregation studies designed to identify qualifying deductions and withstand IRS scrutiny.

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What Is Cost Segregation?

Cost segregation identifies building components that can be depreciated faster than the building itself. As a result, assets like carpeting, electrical systems, and site improvements can be reclassified into shorter tax lives (5, 7, or 15 years instead of 27.5 or 39 years), which allows you to take larger deductions sooner — significantly improving cash flow and reducing current tax liability.

Traditional Depreciation

With Cost Segregation

  • 27.5 years (Residential)
  • 39 years (Commercial)
  • Slow, steady recovery
  • Minimal early deductions
  • Lower cash flow impact
  • 5-year assets: Personal property
  • 7-year assets: Furniture, fixtures
  • 15-year assets: Land improvements
  • Accelerated deductions
  • Maximized early cash flow

Traditional Depreciation

  • 27.5 years (Residential)
  • 39 years (Commercial)
  • Slow, steady recovery
  • Minimal early deductions
  • Lower cash flow impact

With Cost Segregation

  • 5-year assets: Personal property
  • 7-year assets: Furniture, fixtures
  • 15-year assets: Land improvements
  • Accelerated deductions
  • Maximized early cash flow

Typical Cost Segregation Reclassification by Property Type

Apartments
35-40%
Office Buildings
30-35%
Hotels & Resorts
40-45%
Restaurants
38-42%
Retail Centers
32-38%

Deliver exceptional value to your real estate clients. At the same time, our engineering-based approach ensures IRS-defensible results while you maintain the client relationship.

CPAs & Tax Advisors

Deliver exceptional value to your real estate clients. Our engineering-based approach ensures IRS-defensible results while you maintain the client relationship.

Developers

Maximize project returns from day one. For example, cost segregation studies can be performed on new construction, renovations, or recent acquisitions to optimize tax strategy.

Commercial Property Owners

Whether you own office buildings, retail centers, or industrial facilities, cost segregation can unlock hidden deductions and accelerate your return on investment. In addition, an engineering-based study provides the documentation needed to support those classifications.

Why Choose
CSA Partners for Cost Segregation?

After 30,000+ studies, we’ve learned what separates exceptional results from mediocre ones.

Start My Benefit Analysis

Engineering-based, Proprietary Software

While many firms rely on desktop software and generic templates, we deploy licensed engineers with construction backgrounds to perform on-site inspections and detailed cost analysis. As a result, we identify building components and systems that software-only approaches may miss — creating additional opportunities for accurate asset classification and accelerated depreciation.

Construction Industry Expertise

Founded by construction professionals with decades of hands-on experience, our team understands building systems, materials, labor costs, and installation methods at a level competitors simply can't match. As a result, this deep construction knowledge allows us to accurately identify and classify assets that others overlook — including specialty electrical, HVAC distribution systems, and removable building components that qualify for accelerated depreciation.

IRS-Defensible Methodology

Most importantly, every CSA Partners study follows the IRS Cost Segregation Audit Techniques Guide standards to the letter. Our detailed engineering documentation, site-specific analysis, and cost estimation methodology create studies that withstand IRS scrutiny. We've never had a study disallowed, and we back every engagement with 100% no-cost audit support — for as long as you own the property.

CPA-Friendly Partnership

We don't compete for tax return work or traditional advisory services. Instead, we provide specialized real estate tax strategies and the technical expertise behind them. Therefore, when you partner with CSA, you maintain complete control of the client relationship while we provide the technical expertise. Our goal is simple: make you look good by delivering exceptional results that strengthen your client relationships and expand your service offerings.

Engineering analysis for a cost segregation study

What Properties Qualify for Cost Segregation?

Nearly every commercial and residential rental property qualifies for cost segregation — especially if purchased, built, or renovated after 1986. 

  • Apartment Complexes
  • Office Buildings
  • Hotels & Resorts
  • Retail Centers
  • Banks
  • Restaurants
  • Medical Offices
  • Industrial Warehouses
  • Self-Storage Facilities
  • Distribution Centers
  • Manufacturing Facilities
  • Assisted Living
  • Auto Dealerships
  • Golf Courses
  • And More

Assets that qualify for accelerated depreciation: 

5-Year Property: Qualifying Personal Property may include

  • Carpeting & Removable Flooring
  • Window Treatments & Blinds
  • Specialty & Decorative Lighting
  • Cabinetry & Built-in Millwork
  • Countertops & Fixtures
  • Auxiliary HVAC Components
  • Specialty Plumbing Systems
  • Security & Data Systems
  • Wall Coverings & Decorative Finishes
  • More building components

15-Year Property: Qualifying Land Improvements may include

  • Parking Lots & Asphalt Paving
  • Sidewalks, Curbs & Gutters
  • Landscaping & Irrigation Systems
  • Fencing & Retaining Walls
  • Exterior Site Lighting
  • Storm Drains & Site Utilities
  • Signage & Monuments
  • Outdoor Amenities
  • Site Improvements
  • Additional land improvements
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Cost Segregation Results by Property Type

See how cost segregation delivers measurable value across different property types.

Restaurant Cost Segregation

A fast-food restaurant owner wanted to maximize first-year deductions on their new 3,266 sq. ft. location. Despite the relatively small footprint, our engineering team identified significant opportunities in specialty equipment, finishes, and site improvements. As a result, we reclassified 38%.
View Full Case Study

Resort Cost Segregation

This luxury mountain resort invested millions in renovations to their 108-room property and brand-new spa facility. The high-end finishes, specialized mechanical systems, and extensive site improvements created exceptional reclassification opportunities. As a result, our engineering-based study accelerated depreciation by 43%.
View the Full Case Study

Multifamily Cost Segregation

With just 3 weeks before closing on this 108-unit apartment complex, the investor needed immediate tax relief to justify the acquisition. Therefore, our team worked under tight deadlines to complete a comprehensive rush study that identified both catch-up depreciation and current-year opportunities. We delivered $688K.
View the Full Case Study

Cost Segregation FAQs

Study fees begin at $3,000 and are based on size and scope of the project. However, the tax savings almost always exceed the cost by a significant margin — often 10:1 or higher. We provide a free, no-obligation analysis upfront so you know the expected ROI before committing. If the numbers don’t make sense, we’ll tell you.

The best time is as soon as possible after purchase, construction, or renovation — but it’s never too late. Studies can be performed at any time during property ownership, and catch-up depreciation (IRS Form 3115) allows you to capture missed deductions without amending prior tax returns. Many property owners perform studies years after acquisition and still see substantial benefits.

You can still benefit significantly. IRS Form 3115 allows you to claim all missed depreciation from prior years as a “catch-up” deduction on your current tax return — without the need to amend previous returns. We’ve performed studies on properties held for 10+ years with excellent results. The key is acting now to start accelerating future depreciation.

Cost segregation is an IRS-approved tax strategy, not a red flag. When performed correctly with proper documentation and engineering support, studies are defensible and compliant. We follow the IRS Cost Segregation Audit Techniques Guide standards precisely, and we’ve never had a study disallowed. Plus, we provide 100% no-cost audit support for the life of your property ownership.

Typically, the study takes 3–4 weeks from engagement to final report delivery. This includes data gathering, on-site inspection, engineering analysis, and report preparation. Rush studies are available when timing is critical (such as year-end tax planning or property sales). We’ve completed studies in as little as 2 weeks when needed.

Basic requirements include: property address and acquisition date, purchase closing statement, current depreciation schedule (if available), and building cost information. However, construction drawings are helpful but not required — we can often obtain or reconstruct missing documentation. If you’re uncertain what you have, we’ll work with you to gather what’s needed.

Absolutely. Even if you’re planning to sell within a few years, the immediate tax savings and improved cash flow often justify the study. Additionally, you’ll want to consider a 1245 Exchange study to minimize depreciation recapture taxes on the sale.

Unlike software-only approaches, we use licensed engineers with construction backgrounds—not just software. Our team performs on-site inspections and applies real-world construction knowledge to identify opportunities others miss. Cost segregation is ALL we do (no competing services), and we provide lifetime audit support at no additional cost. The result? Higher reclassification rates and IRS-defensible studies.

Not necessarily. While you need taxable income to claim the deductions, losses can be carried forward (up to 20 years for NOLs) or back in some cases. Many investors use cost segregation strategically even in loss years to maximize long-term tax planning. Real estate professionals with active participation may have additional options.

Properties that generally don’t qualify include: personal residences (primary homes), property held for sale (inventory), tax-exempt entity-owned property (unless designer/contractor allocation applies), and very small properties under $300,000 depreciable basis where the study cost exceeds potential savings.

See What a Cost Segregation Study Could Save

Get started with a free analysis or speak with a cost segregation expert.

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