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.
Jeff Darling
With over 30 years of financial expertise, Jeff specializes in unlocking hidden financial potential for commercial property owners. By leveraging cost segregation, R&D tax credits, and energy efficiency strategies, he helps clients accelerate depreciation, optimize cash flow, and reinvest tax savings strategically. Jeff has held leadership roles at top firms like Source Advisors, Bedford Cost Segregation, and CSSI, consistently delivering measurable tax savings nationwide. His consultative approach combines technical expertise with transparency, empowering clients to navigate complex tax codes and achieve sustainable success. Passionate about simplifying tax strategies, Jeff focuses on creating value beyond the numbers. When not driving exceptional financial outcomes, he enables businesses to enhance efficiency, adopt emerging technologies, and implement cost-effective healthcare solutions, blending strategic foresight with actionable insights for lasting results.
With Jeff at the helm of your tax strategy, turning financial pain into gain isn’t just possible—it’s inevitable.
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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