Cost Segregation Study
Engineering-based analysis that reclassifies property assets into 5, 7, or 15-year depreciation schedules instead of 27.5 or 39 years generating average first-year deductions of $171,243 with a typical 10–25:1 ROI.
High-income real estate investors lose thousands annually to unnecessary tax burdens but it doesn't have to be that way. Seneca Cost Segregation delivers engineering-based cost segregation studies and proven tax strategies that accelerate depreciation, eliminate federal tax liability, and unlock immediate cash flow so you can reinvest faster and grow your portfolio with confidence.
Comprehensive tax optimization services designed to maximize depreciation benefits, accelerate savings, and protect high-income real estate investors nationwide.
Engineering-based analysis that reclassifies property assets into 5, 7, or 15-year depreciation schedules instead of 27.5 or 39 years generating average first-year deductions of $171,243 with a typical 10–25:1 ROI.
Recover missed depreciation deductions on properties placed in service up to 15 years ago using IRS Form 3115, no amended returns required. Claim all missed savings in a single tax year.
Convenient 30–45 minute video-based property inspections that eliminate costly on-site travel, reduce study fees, and deliver completed reports in 2–3 weeks without disrupting your schedule.
Every study includes Seneca's AuditDefense guarantee covering full IRS inquiry support, document submission, and specialist representation at no additional cost for as long as you own the property.
Post-study support that bridges the gap between your cost segregation report and your CPA's tax filing, ensuring seamless integration of depreciation schedules into current or prior-year returns.
Beyond cost segregation, Seneca's certified tax advisors identify additional savings opportunities across your entire portfolio, partnerships, businesses, and assets, all at no additional charge.
We start with a complimentary consultation to assess your property's eligibility, run a preliminary savings estimate, and provide a transparent breakdown of study costs and projected ROI so you know exactly what to expect before committing.
See how high-income real estate investors nationwide have unlocked massive tax savings with Seneca Cost Segregation.
"We contacted Seneca for a Cost Seg Study and they went above and beyond. Their eagerness to help and province of info will blow you away."
"I couldn't be more pleased with the results. Their team was incredibly professional, prompt, and easy to work with. I achieved a highly favorable tax situation and recommend Seneca to anyone looking to maximize their tax benefits."
"Dylan and his team at Seneca Cost Segregation are extremely knowledgeable. When I explored their website, it was clear they knew their stuff. It offered a very professional approach to cost segregation, backed by years of experience."
"We contacted Dylan for a cost seg study and he went above and beyond Not only will their pricing be the best price you will find, his eagerness to help and province info will blow you away"
"The tax savings achieved with Seneca Cost Segregation made a major impact on my bottom line. I wasn't aware it was a possibility until they brought the opportunity to me. Their insight and expertise are invaluable."
"Their team was incredibly professional, prompt, and easy to work with."
"Seamless experience with great results. Highly recommend!"
"I've referred multiple clients to Seneca, and each time they uncovered significant tax savings. Their team is fast, professional, and easy to work with. They've become a trusted extension of our tax strategy."
"Extremely professional and efficient in their cost set analysis. Great communication and transparency. Will be using them going forward on all my properties."
"We contacted Seneca for a Cost Seg Study and they went above and beyond. Their eagerness to help and province of info will blow you away."
"I couldn't be more pleased with the results. Their team was incredibly professional, prompt, and easy to work with. I achieved a highly favorable tax situation and recommend Seneca to anyone looking to maximize their tax benefits."
"Dylan and his team at Seneca Cost Segregation are extremely knowledgeable. When I explored their website, it was clear they knew their stuff. It offered a very professional approach to cost segregation, backed by years of experience."
"We contacted Dylan for a cost seg study and he went above and beyond Not only will their pricing be the best price you will find, his eagerness to help and province info will blow you away"
"The tax savings achieved with Seneca Cost Segregation made a major impact on my bottom line. I wasn't aware it was a possibility until they brought the opportunity to me. Their insight and expertise are invaluable."
"Their team was incredibly professional, prompt, and easy to work with."
"Seamless experience with great results. Highly recommend!"
"I've referred multiple clients to Seneca, and each time they uncovered significant tax savings. Their team is fast, professional, and easy to work with. They've become a trusted extension of our tax strategy."
"Extremely professional and efficient in their cost set analysis. Great communication and transparency. Will be using them going forward on all my properties."
"We contacted Seneca for a Cost Seg Study and they went above and beyond. Their eagerness to help and province of info will blow you away."
"I couldn't be more pleased with the results. Their team was incredibly professional, prompt, and easy to work with. I achieved a highly favorable tax situation and recommend Seneca to anyone looking to maximize their tax benefits."
"Dylan and his team at Seneca Cost Segregation are extremely knowledgeable. When I explored their website, it was clear they knew their stuff. It offered a very professional approach to cost segregation, backed by years of experience."
"We contacted Dylan for a cost seg study and he went above and beyond Not only will their pricing be the best price you will find, his eagerness to help and province info will blow you away"
"The tax savings achieved with Seneca Cost Segregation made a major impact on my bottom line. I wasn't aware it was a possibility until they brought the opportunity to me. Their insight and expertise are invaluable."
"Their team was incredibly professional, prompt, and easy to work with."
"Seamless experience with great results. Highly recommend!"
"I've referred multiple clients to Seneca, and each time they uncovered significant tax savings. Their team is fast, professional, and easy to work with. They've become a trusted extension of our tax strategy."
"Extremely professional and efficient in their cost set analysis. Great communication and transparency. Will be using them going forward on all my properties."
Over 10,200+ engineered cost segregation studies completed across the United States. Average first-year tax deduction: $171,243
Studies Completed
Avg Tax Savings
Partners
"I've referred multiple clients to Seneca, and each time they uncovered significant tax savings. Their team is fast, professional, and easy to work with. They've become a trusted extension of our tax strategy."
Eliot Varnum CPA, Varnum, Finch & Co. "Every client we send their way whether it's their first cost segregation study or their seventh is treated like their most important client. Their team's attention to detail, responsiveness, and genuine commitment to adding value set them apart."
Matt Bontrager CEO, Truebooks CPA We combine engineering precision, investor-first experience, and nationwide reach to deliver tax strategies that truly move the needle for high-income real estate portfolios.
Over 10,200 completed studies nationwide with an average first-year deduction of $171,243 and a 95% client referral rate.
Co-founded by active real estate investors with over a decade of hands-on experience flipping, building, and managing properties across the U.S.
Deployed across all 50 states with virtual and on-site inspection options, ensuring high-income investors in every market receive the same expert-level service.
Every study includes lifetime IRS audit protection with a money-back guarantee giving investors the confidence to claim every deduction they are legally entitled to.
Real estate investors and engineers dedicated to maximizing your tax savings.
Co-Founder and CEO
Dylan Scandalios is an active investor in multi-family properties in the Pacific Northwest and a recognized Cost Segregation Expert. Before founding Seneca Cost Segregation, Dylan closed millions of dollars in business for both public and private companies along the West Coast, developing deep expertise in real estate finance and tax strategy. As CEO, Dylan has helped thousands of real estate investors including office building owners save millions on their federal taxes through engineering-based cost segregation studies. His hands-on investment background means he approaches every client engagement with the perspective of an investor, not just a service provider. Under his leadership, Seneca has completed over 10,200 studies nationwide and achieved a 95% client referral rate.
Co-Founder
Paul Spies is a Marine Corps Sergeant who brings over 8 years of hands-on expertise in real estate construction to Seneca Cost Segregation. As a Principal Broker and Licensed Contractor, Paul successfully flipped over 150 homes in just four years and led ground-up multi-family development projects across the country. Having leveraged cost segregation personally since 2018 to maximize returns on his own office and residential properties, Paul co-founded Seneca to make the same powerful tax strategy accessible to investors nationwide at an affordable price point and delivered on time. His construction background gives Seneca a unique engineering advantage when analyzing complex office building components and systems.
Chairman
Howard Hirsch serves as Chairman of Seneca Cost Segregation, providing executive leadership and strategic oversight to the firm's continued national expansion. With deep experience in financial services and real estate advisory, Howard helps guide Seneca's direction as it scales its engineering-based cost segregation services to property owners across all 50 states, including California's dynamic real estate market. His leadership ensures the company maintains its commitment to technical excellence, client satisfaction, and IRS-compliant study delivery that protects clients through every phase of property ownership.
President/Treasurer
Harry Papp serves as President and Treasurer of Seneca Cost Segregation, overseeing the company's operational and financial integrity. His dual role ensures that client investments in cost segregation studies generate maximum ROI through rigorous financial management and disciplined operational processes. Harry's leadership directly supports Seneca's ability to deliver studies on time and within budget a standard that has helped the firm achieve a 95% client referral rate and an average first-year deduction of $171,243 for property owners across California and the rest of the nation.
Merle Rosskam
CEO
The 3-3-3 rule is a framework some investors use to evaluate real estate deals: buying at 30% below market value, targeting a 3% gross rent multiplier, and holding for at least 3 years. While not universally standardized, it serves as a quick filter for identifying cash-flowing, undervalued properties. Combining it with cost segregation can dramatically accelerate returns by front-loading depreciation deductions in the early ownership years.
Speak with a cost segregation specialist for a free, no-obligation consultation and savings estimate.
Member of the American Society of Cost Segregation Professionals
Certified Cost Segregation Professional designation from ASCSP
Perfect 5-star rating from satisfied real estate investors nationwide
Get a free, no-obligation consultation and preliminary savings estimate. Our cost segregation specialists will assess your property, project your deductions, and walk you through exactly how much you could save before you commit to anything.
For immediate assistance, feel free to give us a direct call at +1 530-797-6539. You can also send us a quick email at info@senecacostseg.com.
For immediate assistance, feel free to give us a direct call at +1 530-797-6539. You can also send us a quick email at info@senecacostseg.com.