Cost Segregation Study
Engineering-based analysis that reclassifies tiny house assets into 5, 7, or 15-year depreciation schedules instead of 27.5 years delivering substantial first-year tax deductions with full audit defense included.
Tiny houses may be small in size, but the tax savings from a proper cost segregation study can be significant. Seneca Cost Segregation helps tiny house investors unlock accelerated depreciation deductions, convert 20–40% of property costs into immediate tax savings, and boost cash flow all backed by engineering-based methodology and IRS-compliant reporting.

Comprehensive cost segregation solutions designed to maximize tax savings for tiny house property owners and investors.
Engineering-based analysis that reclassifies tiny house assets into 5, 7, or 15-year depreciation schedules instead of 27.5 years delivering substantial first-year tax deductions with full audit defense included.
Own a tiny house purchased in the last 15 years? Claim all missed depreciation in a single tax year using IRS Form 3115, no amended returns required, with the same engineering rigor as current-year studies.
A convenient 30–45 minute video call inspection replaces costly on-site visits, accelerating study turnaround to 2–3 weeks and reducing overall study costs for tiny house owners nationwide.
Every cost segregation study includes Seneca AuditDefense at no added cost, covering your tiny house property for as long as you own it, with a potential study-cost refund if a material issue arises.
Seamless post-study support ensures your CPA can efficiently implement depreciation schedules and leverage cost segregation findings directly within your tax filings or amended returns.
Need results before a tax deadline? Expedited study delivery in as little as one week ensures your tiny house cost segregation is completed on time, even under tight scheduling constraints.

We begin with a no-obligation consultation to assess your tiny house's eligibility, provide a preliminary estimate of tax savings and ROI, and transparently walk through study costs so you know exactly what to expect before committing.
See how tiny house and real estate investors have unlocked significant tax savings with Seneca Cost Segregation.
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
We combine over 12 years of engineering expertise with a client-first approach to deliver cost segregation studies that stand up to IRS scrutiny at a price that makes sense for tiny house investors.
Over 10,200 properties assessed nationwide with an average first-year deduction of $171,243 across all property types.
ASCSP-certified engineers use proprietary technology and strict IRS methodology to ensure every study is precise, defensible, and compliant.
Deployed across all 50 states with virtual tour capability, so tiny house investors anywhere in the country receive the same high-quality service.
Every study includes Seneca AuditDefense lifetime IRS audit coverage for your tiny house property at no additional charge, backed by a money-back guarantee.
Real estate investors and engineers who understand what's at stake for property owners.

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
Yes. Tiny houses that are income-producing and have a depreciable building basis qualify for cost segregation. Like other residential rental properties, components such as electrical systems, plumbing fixtures, flooring, and site improvements can be reclassified into 5, 7, or 15-year depreciation schedules, accelerating deductions and increasing cash flow for the owner.
Speak with a cost segregation expert for a free consultation and savings estimate tailored to your property.
Seneca Cost Segregation delivers engineering-based cost segregation studies for tiny house owners across every U.S. state.
All 50 States
Service Coverage
10,200+
Studies Completed
95%
Client Referral Rate
We serve property owners in all 50 states, reach out to confirm and get your free savings estimate today.
ASCSP-certified professionals with Certified Cost Segregation Professional credentials.
Perfect five-star average rating from satisfied clients nationwide.
Proudly veteran-owned, certified for service excellence and operational integrity.
Fill out the form below to receive your free cost segregation savings estimate. Our team will review your tiny house property details and get back to you with a clear picture of your potential deductions no obligation required.
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.