IRS Audit Defense
Our certified cost segregation specialists respond directly to IRS audit inquiries related to your cost segregation study, defending every classification decision at no additional charge for the life of your property ownership.
Facing an IRS audit can be stressful and costly—but you don't have to navigate it alone. Seneca Cost Segregation's IRS Audit Defense service provides engineering-backed documentation, direct IRS communication handling, and a money-back guarantee. Our certified specialists defend your cost segregation study for as long as you own the property, at no additional charge.
Comprehensive audit protection backed by engineering expertise, certified professionals, and an iron-clad money-back guarantee.
Our certified cost segregation specialists respond directly to IRS audit inquiries related to your cost segregation study, defending every classification decision at no additional charge for the life of your property ownership.
We manage all IRS field inquiries and written communications on your behalf, ensuring timely, accurate, and professionally prepared responses that uphold the integrity of your engineering-based cost segregation report.
We assemble and deliver comprehensive supporting documentation—including engineering analysis, photo evidence, depreciation schedules, and cost reconciliation workpapers—to substantiate your study's findings during an IRS review.
The moment you receive an IRS audit notice related to your cost segregation study, our team reviews the scope and nature of the inquiry. We assess the specific items under examination and determine the most effective strategy to protect your tax position.
See how real estate investors across the country protected their tax savings with our audit defense.
"Seamless experience with great results. Highly recommend!"
"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."
"Extremely professional and efficient in their cost set analysis. Great communication and transparency. Will be using them going forward on all my properties."
"Their team was incredibly professional, prompt, and easy to work with."
"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."
"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."
"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."
"Seamless experience with great results. Highly recommend!"
"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."
"Extremely professional and efficient in their cost set analysis. Great communication and transparency. Will be using them going forward on all my properties."
"Their team was incredibly professional, prompt, and easy to work with."
"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."
"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."
"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."
"Seamless experience with great results. Highly recommend!"
"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."
"Extremely professional and efficient in their cost set analysis. Great communication and transparency. Will be using them going forward on all my properties."
"Their team was incredibly professional, prompt, and easy to work with."
"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."
"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."
"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."
We combine engineering precision, certified expertise, and a client-first guarantee to make IRS audit defense seamless and stress-free.
Our AuditDefense includes a money-back guarantee—if an audit finds a material issue, we can refund your study cost.
Unlike limited-term policies, our audit defense covers you for as long as you own the property, in any state across the U.S.
Our team holds the Certified Cost Segregation Professional (CCSP) designation, ensuring IRS-compliant, engineering-backed defense.
With over 10,200 completed studies nationwide and a 95% client referral rate, our track record speaks for itself.
Our founders and specialists bring real-world real estate and engineering expertise.
Co-Founder and CEO
Dylan Scandalios is an active investor in multi-family properties across the Pacific Northwest, giving him a firsthand understanding of the tax challenges real estate investors face. Before founding Seneca Cost Segregation, Dylan closed millions of dollars in business for both public and private companies along the West Coast. As a recognized Cost Segregation Expert, Dylan built Seneca to deliver the same engineering-grade audit protection and tax strategy that large institutional investors rely on—now accessible to individual property owners at every scale. His commitment to client outcomes is reflected in Seneca's 95% referral rate and its expansion to serve investors in all 50 states. Dylan ensures that every client receives not just a study, but a complete and defensible tax strategy.
Co-Founder
Paul Spies is a Marine Corps Sergeant whose discipline and leadership define Seneca's commitment to precision and reliability. With over 8 years of hands-on expertise in real estate construction, Paul is a Principal Broker and Licensed Contractor who successfully flipped over 150 homes in four years and led ground-up multi-family development projects. Having personally used cost segregation since 2018, Paul understands the value—and the audit risk—that comes with aggressive depreciation strategies. He co-founded Seneca Cost Segregation to deliver the same competitive tax advantages he benefited from to other investors, at an affordable price with fast, on-time delivery and the engineering rigor required to withstand any IRS scrutiny.
At Seneca Cost Segregation, IRS audit defense is included at no additional charge with every cost segregation study. There are no hourly fees or retainer costs. Our team of certified specialists handles all IRS communications, documentation, and responses on your behalf for the entire duration of your property ownership. If the audit reveals a material issue with the study, we can even refund the original study cost.
Speak directly with a certified cost segregation specialist for a free consultation.
Seneca Cost Segregation provides IRS audit defense and representation for real estate investors across all 50 states.
All 50 States
Service Coverage
10,200+
Studies Completed
95%
Client Referral Rate
We provide IRS audit defense for property owners in every U.S. state—contact us to confirm.
Member of the American Society of Cost Segregation Professionals
Perfect 5-star average from verified clients nationwide
Iron-clad money-back audit defense guarantee on every study
Fill out the form below to connect with a certified cost segregation specialist. We'll review your situation and explain exactly how Seneca's AuditDefense protects your tax savings from the moment your study is delivered.
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