We started with the belief that cost segregation shouldn’t be complicated or out of reach, but instead a powerful, practical tool every investor can use to accelerate wealth.
A Firm Committed to
Your Success
At USTAGI – U.S. Tax Advisors Group, Inc., our mission has always been simple: help real estate investors keep more of what they earn.
Founded by Joseph Viery, CSP, our firm was built on the idea that quality matters. Joseph saw too many investors missing out on tax savings because of generic, cookie-cutter reports. With a financial background and a passion for teaching, he set out to create a firm that delivers IRS-defensible studies while making the process clear and approachable.
Since 2007, Joseph and the USTAGI team have completed thousands of studies for clients across the country—on properties ranging from modest single-family rentals to large-scale commercial portfolios. Along the way, Joseph has become a trusted national voice, regularly speaking at workshops and podcasts, where he’s known for breaking down complex tax concepts into easy-to-understand strategies.
Why Choose USTAGI?
Experience You Can Trust
With thousands of studies performed, we bring unmatched expertise across all property types.
Quality That Stands Up
Our reports meet the highest industry standards, ensuring compliance and audit readiness.
Education & Transparency
We believe in empowering our clients. You’ll understand the process, the numbers, and the strategy behind your study.
A True Partner in Your Success
From pre-acquisition planning to long-term portfolio strategy, we’re here to help you grow.
Client Reviews
“I’m a tax CPA. Had my first real estate client, who bought a 15-year-old medical office building. I kept hearing about cost seg from a colleague, so we hired USTAGI to run a study. Honestly, they delivered about $220k catch-all depreciation in year one. Client was thrilled, and it made my year-end planning look great. I can’t complain about the results. I have hired them again after that for most of my clients.”
— Haley F“What I liked: the engineer walked the property and caught things like site lighting and land improvements I didn’t even know about. Would I do it again? Probably, if I buy another property.”
— Pete J“We captured about $350k of missed depreciation in the final two years before sale. Great job.”
— Logan R