Diana Ontaneda

Cost Segregation Manager
609-738-7006 | eMail

Diana Ontaneda is the Cost Segregation Manager at ICS Tax, bringing more than seven years of experience in engineering based cost segregation and tax depreciation studies. She specializes in identifying accelerated depreciation opportunities for commercial and residential properties while maintaining strict compliance with IRS regulations and industry standards.

Prior to joining ICS Tax, Diana served as a Senior Engineer at CohnReznick Advisory, where she prepared detailed cost segregation analyses, construction cost reviews, and depreciation schedules. She previously held project engineering roles at Engineered Tax Services and Segregation Holding, and holds a Bachelor of Science in Civil Engineering with a minor in Computer Science from the Rutgers University School of Engineering. She brings analytical rigor, leadership, and a strong commitment to audit ready, defensible studies deliverables.