Our Services
A Platform Designed to Unlock Savings
Over 50,000 Studies Completed Since 2003

Engineering-Based Expertise
50,000+ studies since 2003, expertly navigating complex tax regulations.

Multiple Tax Solutions
Our expertise spans cost segregation, 179D energy efficiency deduction, R&D credits, and sustainable building technologies to maximize your tax savings.

National Coverage
Our nationwide network of professionals provides local expertise while delivering consistent, high-quality results across all 50 states.

Tax Professional Partnerships
We collaborate with CPAs and tax advisors to ensure timely, compliant, and maximum tax benefits for their clients.
CSSI is America's leading provider of engineering-based tax solutions. We partner with property owners and their tax professionals to maximize tax benefits and increase cash flow through accurate, compliant studies. Our proven methodology has never triggered an IRS audit, and our nationwide team of experts consistently delivers results that transform complex tax regulations into tangible financial benefits for our clients.


Estimate Your Savings
Our Cost Segregation Calculator helps commercial property owners understand the potential tax benefits of accelerated depreciation. By reclassifying building components from 27.5 or 39-year property to 5, 7, or 15-year property, you can significantly increase cash flow through larger immediate tax deductions.
Simply enter your property information below to receive an estimate of potential tax savings. This calculation provides a general overview - for a detailed analysis of your specific property, our engineering-based study would identify all qualifying components.
Please note that actual results may vary based on your property's unique characteristics, acquisition date, and tax situation. The calculator assumes current tax laws and does not constitute tax advice.
Estimated Tax Savings
Accelerated Depreciation Deduction
Standard Straight-Line Depreciation Deduction
Accelerated Depreciation Deduction
Standard Straight-Line Depreciation Deduction
Your results show estimated first-year tax savings based on typical properties similar to yours. The Conservative Estimate shows what most property owners like you can expect at minimum, while the High-End Estimate shows what's possible with a thorough professional analysis. These numbers represent actual cash you could save on taxes. For a personalized assessment that accounts for your property's specific features, continue with our no-cost analysis request.
Tax Savings Analysis
David H. Trahan
As a National Account Representative for CSSI, David Trahan brings extensive real estate expertise and a distinguished track record of helping clients defer over $90 million in income taxes on properties exceeding $1 billion in value. A former U.S. Navy communications officer with MBA and MS degrees from Louisiana State University, David specializes in cost segregation, partial asset dispositions, and strategic tax solutions for large and mid-sized real estate companies. His client portfolio includes industry leaders such as CAF Partners, MetroNational, McCord Development, and the Peachtree Hotel Group, with projects ranging from $400,000 to over $200 million in value.
A consistent CSSI President’s Club achiever and recipient of the 2022 Excellence Award as top account representative, David has authored articles in prestigious publications including the Austin Business Journal and the Appraisal Journal. When not serving clients from his offices in Texas and North Carolina, he enjoys fishing, wine tasting, golf, and spending time with his children and grandchildren.
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Get a Free Tax Savings Analysis of Your Property
We’ll deliver a complete assessment of potential savings in as little as two business days.
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Learn more about what CSSI can do for you.
We're committed to helping you take full advantage of cost segregation, 179D, and GreenZip technology.
Learn More About What CSSI Can Do for You
We’re committed to helping you take full advantage of Cost Segregation, 179D, R&D Tax Credits, and Green Zip technology.
Learn More