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, delivering average first-year savings of $171,243 with complete IRS audit defense included.
Understanding asset class determination is critical for maximizing your property's tax benefits. Our engineering-based approach identifies and reclassifies building components into shorter depreciation schedules, unlocking immediate cash flow and reducing federal tax obligations. With over 10,200 properties analyzed nationwide, we transform complex IRS guidelines into actionable savings strategies that put money back into your real estate investments.

Comprehensive engineering-based solutions to identify, classify, and maximize depreciation benefits across your entire real estate portfolio.
Engineering-based analysis that reclassifies property assets into 5, 7, or 15-year depreciation schedules instead of 27.5 or 39 years, delivering average first-year savings of $171,243 with complete IRS audit defense included.
Recapture missed depreciation from properties placed in service up to 15 years ago using IRS Form 3115, claiming all previous deductions in one year without amending past returns.
Convenient video-based property inspections completed in 30-45 minutes, enabling faster 2-3 week turnaround with lower costs while maintaining engineering precision and IRS compliance standards.
Post-study coordination with your tax professional to seamlessly integrate depreciation schedules, prepare Form 3115 filings, and ensure accurate implementation of cost segregation findings.
Expedited study completion in as little as one week for urgent tax deadlines, with prioritized engineering analysis and accelerated delivery timelines to meet your filing requirements.
Lifetime IRS audit protection included with every study at no additional charge, featuring field inquiry responses, documentation support, and potential cost refunds if material issues arise.
Asset class determination isn't guesswork—it's engineering science applied to tax law. Our certified professionals inspect every building component, from HVAC systems to flooring materials, applying detailed cost engineering principles to defensibly classify assets under IRS guidelines. This meticulous approach ensures maximum depreciation acceleration while maintaining full audit protection, transforming your property's tax profile with documentation the IRS respects.

Join over 10,200 property owners nationwide who've unlocked millions in tax savings through our engineering-based approach.
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
Our veteran-owned firm combines real-world investment experience with engineering precision to deliver unmatched results.
Co-founded by real estate investors who've personally used cost segregation across 150+ property flips and multi-family developments nationwide.
Proprietary engineering technology delivers comprehensive studies in half the industry standard timeframe without sacrificing accuracy or IRS compliance.
Every study includes our AuditDefense guarantee with potential cost refunds, covering you for as long as you own the property—not just limited periods.
Over 12 years of nationwide experience across all 50 states, with 95% client referral rate and average first-year savings exceeding $171,000.
Real estate investors turned cost segregation specialists.

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.
Asset class determination is the engineering process of identifying and classifying individual building components into their proper IRS depreciation categories. Instead of depreciating an entire property over 27.5 or 39 years, we analyze each component—from HVAC systems and electrical wiring to carpeting and landscaping—to determine which assets qualify for accelerated 5-year, 7-year, or 15-year depreciation schedules. This detailed classification is based on IRS guidelines, engineering cost principles, and detailed property inspection. The result is a defensible report that shifts significant portions of your property basis into shorter depreciation periods, creating immediate tax deductions that increase cash flow.
Our cost segregation experts are ready to provide a free consultation and savings estimate tailored to your property.
American Society of Cost Segregation Professionals member
Professional engineering licenses across all 50 states
Highest satisfaction across 10,200+ completed studies
Get your free savings estimate and ROI analysis. Most property owners discover they're leaving six figures on the table—let's calculate your opportunity.
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.