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CSSI | Cost Segregation & Specialty Tax Services
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Testing on’t worry, we’re not asking you to upgrade to premium. But maybe you can give us a nice review (if you like it)? We put a lot of effort into the free plugin


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Maximize Your Tax Savings With Our Cost Segregation And Specialty Tax Services

Many businesses and property owners leave money on the table when it comes to tax incentives, either due to a lack of resources or expertise. As a leading tax consulting firm, we provide 4 strategic solutions to help you identify and capture every opportunity to reduce your tax burden and improve cash flow.

Testing on’t worry, we’re not asking you to upgrade to premium. But maybe you can give us a nice review (if you like it)? We put a lot of effort into the free plugin


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Over 50,000 Studies Completed Since 2003

Engineering-Based Expertise

50,000+ studies since 2003, expertly navigating complex tax regulations.

Multiple Tax Solutions

As a trusted tax consulting firm, our expertise spans cost segregation, the 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 consulting solutions. We partner with property owners and their tax professionals to maximize tax benefits and increase cash flow through accurate, compliant cost segregation studies and more. 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. 


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Does Your Property Qualify for Cost Segregation?

Find Out

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How Long Does a Cost Segregation Study Take?

View Common FAQs

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We Help Clients Across the U.S. Save Millions of Dollars Year In And Year Out

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“The bottom line speaks for itself… CSSI saved us over $500,000 in cash. In these economic times, no one in business can afford to let that kind of money slip away.”

Justin P.
Property and Business Owner


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I enjoyed working with CSSI. Their expertise in cost segregation really helped us. The team is incredibly knowledgeable, professional, and always willing to go the extra mile to ensure we understand every step of the process. From start to finish, the service was seamless and exceeded our expectations.

Michael C.
Property and Business Owner