Cost Segregation Study
A full engineering-based analysis that reclassifies your multifamily property assets into 5-, 7-, or 15-year depreciation schedules, delivering an average first-year deduction of $171,243 and ROI ratios of 10–25:1.
Multifamily property owners across the country are leaving significant tax savings on the table every year. Seneca Cost Segregation's engineering-based studies reclassify your apartment building, duplex, or complex assets into shorter depreciation timelines unlocking front-loaded deductions, boosting cash flow, and giving you capital to reinvest in your next acquisition faster.
Comprehensive cost segregation solutions tailored to multifamily property owners seeking maximum accelerated depreciation benefits.
A full engineering-based analysis that reclassifies your multifamily property assets into 5-, 7-, or 15-year depreciation schedules, delivering an average first-year deduction of $171,243 and ROI ratios of 10–25:1.
Already own your apartment building or multi-unit property? Claim all missed depreciation from the past 15 years in a single tax year using IRS Form 3115 no amended returns required.
Skip costly on-site visits. Our engineers conduct a thorough multifamily property inspection via video call in 30–45 minutes, with study results delivered in 2–3 weeks at a lower overall cost.
Every study includes Seneca AuditDefense at no additional charge covering you for the entire duration of property ownership with full IRS inquiry support and a potential study cost refund guarantee.
Our team works directly with your accountant to seamlessly implement depreciation schedules into your tax returns, including Form 3115 preparation and post-study support at no extra cost.
Need results before a tax deadline? Our expedited service delivers completed cost segregation studies for your multifamily property in as little as one week, prioritized to meet your schedule.
Multifamily properties from duplexes to high-rise apartment complexes contain a wealth of assets eligible for accelerated depreciation that standard 27.5-year schedules completely miss. Seneca Cost Segregation's engineers identify and reclassify components like flooring, lighting, landscaping, and land improvements into 5-, 7-, and 15-year categories. The result: a massive front-loaded tax deduction in year one, increased cash flow, and capital freed up to acquire your next property. With over 10,200 studies completed nationwide and an average first-year savings of $171,243, our engineering-based methodology is trusted by multifamily investors from coast to coast.
See how multifamily property owners across the country have unlocked significant 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, real estate investor experience, and unmatched client support to deliver results multifamily owners can count on.
Founded by active multifamily and real estate investors who have personally used cost segregation bringing real-world insight to every study.
Over 10,200 studies completed nationwide with a 95% client referral rate and an average first-year deduction of $171,243 per property.
Every study includes Seneca AuditDefense, a lifetime IRS audit coverage for as long as you own your multifamily property, at no additional charge.
Studies delivered in 2–4 weeks across all 50 states, well ahead of the industry standard of 4–8 weeks, so you capture savings sooner.
Real estate investors and engineering professionals working to maximize 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
Cost segregation is an IRS-compliant tax strategy that reclassifies components of your multifamily property such as flooring, appliances, landscaping, and land improvements from the standard 27.5-year depreciation schedule into shorter 5-, 7-, or 15-year schedules. This accelerates your depreciation deductions, significantly reducing your taxable income in the early years of ownership and freeing up cash flow to reinvest in additional properties.
Our specialists are ready to answer your questions and provide a free, no-obligation savings estimate for your multifamily property.
Seneca Cost Segregation serves multifamily property owners across all 50 states with virtual and on-site study options.
All 50 States
Service Coverage
10,200+
Studies Completed
95%
Client Referral Rate
We serve multifamily property owners across all 50 states contact us to confirm coverage and get your free 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
Complete the form below and a Seneca Cost Segregation specialist will reach out within one business day with a no-obligation preliminary savings estimate for your multifamily property.
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.