Our Services

A Platform Designed to Unlock Savings

Over 45,000 Studies Completed Since 2003

Engineering-Based Expertise

45,000+ 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. 

David H. Trahan

National Account Executive

North Carolina

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.

Contact

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