Our Services
A Platform Designed to Unlock Savings
Cost Segregation
179D Tax Deduction
R&D Tax Credits
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.
Zachary Doroff
Zachary Doroff is an experienced construction professional with a strong foundation in both field operations and client-focused consulting. Prior to joining CSSI, he owned and operated a construction business, gaining firsthand insight into the challenges and opportunities faced by property owners and developers. In 2019, he became a Union Carpenter, further deepening his technical expertise and understanding of complex building systems across a variety of project types.
Zachary brings this practical knowledge to his work at CSSI, where he helps commercial real estate professionals and investors strategically apply cost segregation to enhance tax efficiency, improve cash flow, and maximize the value of their real estate portfolios.
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.
Resources
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