Cost Segregation Study
Engineering-based analysis that reclassifies property assets into shorter depreciation timeframes—5, 7, or 15 years—to deliver accelerated deductions, with an average first-year saving of $171,243 and ROI of 10–25:1.
Seneca Cost Segregation delivers engineering-based property tax consulting and real estate tax advisory services trusted by thousands of investors nationwide. From cost segregation studies to complimentary tax assessments, we help property owners legally accelerate depreciation, eliminate unnecessary tax burdens, and unlock immediate cash flow—with an average first-year deduction of $171,243 and IRS audit protection included.
Comprehensive engineering-based tax strategies designed to maximize depreciation deductions and reduce federal tax liability for real estate investors.
Engineering-based analysis that reclassifies property assets into shorter depreciation timeframes—5, 7, or 15 years—to deliver accelerated deductions, with an average first-year saving of $171,243 and ROI of 10–25:1.
Recover missed depreciation deductions on properties placed in service up to 15 years ago—without amending prior returns—using IRS Form 3115 to claim all missed deductions in a single tax year.
Convenient video-call inspections that deliver full property analysis in 30–45 minutes, eliminating travel costs and cutting turnaround time to just 2–3 weeks compared to 4–6 weeks for on-site visits.
Every study includes Seneca AuditDefense at no extra charge—our specialists handle all IRS inquiries, provide supporting documentation, and cover clients for the entire duration of property ownership.
Post-study implementation support for CPAs and tax professionals, including depreciation schedule integration, Form 3115 guidance, and direct coordination to ensure seamless inclusion in tax filings.
Beyond cost segregation, Seneca provides complimentary tax assessments across your portfolio, partnerships, and business assets to identify additional savings opportunities at no additional charge.
We begin with a no-cost consultation to assess your property's eligibility, provide a preliminary savings estimate, and deliver a transparent breakdown of projected ROI—so you know the value before committing. Properties across all 50 states qualify.
See how real estate owners across the country have unlocked significant tax savings with Seneca Cost Segregation.
"Extremely professional and efficient in their cost set analysis. Great communication and transparency. Will be using them going forward on all my properties."
"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."
"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."
"Seamless experience with great results. Highly recommend!"
"Their team was incredibly professional, prompt, and easy to work with."
"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"
"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."
"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."
"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."
"Extremely professional and efficient in their cost set analysis. Great communication and transparency. Will be using them going forward on all my properties."
"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."
"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."
"Seamless experience with great results. Highly recommend!"
"Their team was incredibly professional, prompt, and easy to work with."
"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"
"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."
"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."
"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."
"Extremely professional and efficient in their cost set analysis. Great communication and transparency. Will be using them going forward on all my properties."
"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."
"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."
"Seamless experience with great results. Highly recommend!"
"Their team was incredibly professional, prompt, and easy to work with."
"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"
"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."
"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."
"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."
From veteran-owned roots to engineering-grade methodology, here's what sets our property tax advisory team apart.
Over 10,200 cost segregation studies completed nationwide with a 95% client referral rate across all 50 states.
Our studies use proprietary, engineer-built technology tested for IRS compliance—delivering accuracy and audit-ready documentation every time.
Every study comes with Seneca AuditDefense at no extra cost, protecting clients for the full duration of property ownership with a money-back guarantee.
Founded by a Marine Corps veteran and a multi-family investor with over a decade of real estate experience—we advise from a position of firsthand property ownership.
Expert engineers, investors, and advisors dedicated to maximizing your real estate tax benefits.
Co-Founder and CEO
Dylan Scandalios is an active investor in multi-family properties throughout the Pacific Northwest and a recognized Cost Segregation Expert. Before co-founding Seneca Cost Segregation, Dylan closed millions of dollars in business for both public and private companies along the West Coast, building deep expertise in real estate finance and tax strategy. As CEO, he has guided Seneca to complete over 10,200 cost segregation studies, helping real estate investors across all 50 states save millions on their federal taxes. Dylan's hands-on investment experience means he understands the real-world impact of tax advisory decisions—and works tirelessly to ensure every client captures the maximum depreciation benefit available to them under IRS guidelines.
Co-Founder
Paul Spies brings a unique combination of military discipline and real estate construction mastery to Seneca Cost Segregation. A Marine Corps Sergeant, Paul holds a Principal Broker license and Licensed Contractor credentials, and spent years flipping over 150 homes and leading ground-up multi-family development projects. Having personally leveraged cost segregation since 2018 to gain a competitive edge on his own investments, Paul co-founded Seneca to make the same powerful tax strategy accessible to investors across the country—at an affordable price and delivered on time. His deep understanding of construction components and property valuation directly informs the engineering accuracy behind every Seneca study.
Chairman
Howard Hirsch serves as Chairman of Seneca Cost Segregation, providing strategic leadership and governance oversight that guides the company's growth and commitment to engineering excellence. With a focus on integrity and long-term client value, Howard helps ensure that Seneca's tax advisory services remain aligned with the highest standards of IRS compliance and professional ethics. His leadership supports the company's mission to help real estate investors across all 50 states legally maximize their depreciation deductions and build lasting financial flexibility through expert cost segregation.
President/Treasurer
Harry Papp serves as President and Treasurer of Seneca Cost Segregation, overseeing the company's operational and financial performance. Harry plays a pivotal role in ensuring that Seneca's processes remain efficient, transparent, and client-focused—from initial consultation through final report delivery and CPA coordination. His financial acumen and commitment to operational excellence support Seneca's ability to deliver cost segregation studies within 2–4 weeks while maintaining the engineering rigor and audit-ready quality that clients and their CPAs depend on.
Tax advisory refers to professional guidance provided to individuals or businesses to help them navigate tax laws, minimize liabilities, and optimize their financial strategies. A tax advisor analyzes your specific situation—such as property ownership, income structure, and investment goals—to recommend legal strategies like cost segregation, depreciation acceleration, and tax deferral that reduce your overall tax burden.
Speak with a Seneca cost segregation expert for a free, no-obligation consultation and savings estimate.
Seneca Cost Segregation provides engineering-based property tax advisory services to real estate investors in all 50 states.
All 50 States
Service Coverage
10,200+
Studies Completed
95%
Client Referral Rate
We serve real estate investors nationwide—contact us to confirm eligibility and get your free savings estimate.
Member of the American Society of Cost Segregation Professionals.
Certified Cost Segregation Professional designation from ASCSP.
Perfect five-star average rating from satisfied clients nationwide.
Fill out the form below and a Seneca Cost Segregation expert will reach out to assess your property, estimate your potential tax savings, and answer any questions—at no cost and no obligation.
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