Cost Segregation Study
A full engineering-based analysis that reclassifies property assets into 5-, 7-, or 15-year depreciation schedules, accelerating deductions and delivering average first-year savings of $171,243.
Wisconsin property owners are leaving significant tax dollars on the table every year. Seneca Cost Segregation delivers engineering-based studies that reclassify your property assets for accelerated depreciation turning 20–40% of your building's cost into immediate tax savings. With over 10,200 studies completed nationwide and an average first-year deduction of $171,243, we help Wisconsin investors keep more of what they earn.
Comprehensive engineering-based cost segregation solutions for Wisconsin property owners, from initial studies to audit defense and CPA support.
A full engineering-based analysis that reclassifies property assets into 5-, 7-, or 15-year depreciation schedules, accelerating deductions and delivering average first-year savings of $171,243.
Claim missed depreciation on properties placed in service up to 15 years ago without amending prior returns. Uses IRS Form 3115 to capture all unclaimed deductions in a single tax year.
Convenient 30–45 minute video-based property inspections that eliminate travel costs, reduce study fees, and deliver completed reports in as little as 2–3 weeks.
Every study includes Seneca AuditDefense at no additional charge covering full IRS inquiry response and documentation support for as long as you own the property.
Post-study implementation support for your accountant, including depreciation schedule delivery, Form 3115 guidance, and direct coordination to ensure seamless integration into your tax returns.
Need results before a tax deadline? Expedited studies can be delivered in as little as one week, ensuring Wisconsin investors never miss a filing opportunity due to timing.
Wisconsin's diverse real estate market from Milwaukee's commercial corridors to Madison's multifamily boom and rural agricultural properties creates substantial cost segregation opportunities that most investors never capture. Seneca's certified engineers analyze every component of your property, reclassifying assets from 39-year to 5-, 7-, or 15-year depreciation schedules. The result: front-loaded deductions that dramatically reduce your federal tax burden in year one, freeing capital for your next Wisconsin acquisition.
See how Wisconsin and nationwide property owners have transformed their tax strategies 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 investor experience, and proven results to deliver cost segregation studies Wisconsin property owners can rely on.
Our engineers have completed over 10,200 cost segregation studies nationwide, including properties across Wisconsin's residential and commercial markets.
Every study includes our iron-clad AuditDefense guarantee IRS inquiry support at no charge for the full duration of your property ownership.
Founded by real estate investors, we understand Wisconsin's property landscape and deliver strategies we've personally used to maximize our own portfolios.
Studies completed in 2–4 weeks half the industry standard so Wisconsin investors capture deductions without delaying their tax filings.
Experienced engineers, investors, and tax specialists dedicated to your 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.
A cost segregation study is an engineering-based tax analysis that reclassifies components of a commercial or investment property from 27.5- or 39-year depreciation schedules into shorter 5-, 7-, or 15-year categories. This accelerates your depreciation deductions, front-loading tax savings into the early years of ownership. A certified engineer inspects the property, categorizes each asset, and produces a detailed report used by your CPA to reduce your federal tax liability.
Speak with a Wisconsin cost segregation specialist for a free, no-obligation consultation and savings estimate.
Seneca Cost Segregation is deployed across all 50 states, delivering engineering-based studies to investors wherever their properties are located.
All 50 States
Service Coverage
10,200+
Studies Completed
95%
Client Referral Rate
We serve all Wisconsin locations get your free savings estimate today.
Member of the American Society of Cost Segregation Professionals
Certified Cost Segregation Professional credential from ASCSP
Perfect five-star rating from satisfied property owners nationwide
Complete the form below and a Seneca specialist will provide a no-obligation preliminary savings analysis for your property, typically within one business day.
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.