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Engineering-Based Cost Segregation Study for CPA Firms

Empower your CPA practice with engineered cost segregation studies that deliver substantial tax savings for your clients. Our ASCSP-certified team provides comprehensive engineering-based analysis, IRS-compliant documentation, and seamless implementation support—helping you expand your service offerings while strengthening client relationships and retention with proven tax strategies.

CPA reviewing detailed cost segregation engineering report with tax documents and property analysis

Our Cost Segregation Services for CPAs

Comprehensive engineering-based studies with full implementation support to help you deliver maximum tax value to your clients.

Engineering-Based Cost Segregation Study

Comprehensive IRS-compliant analysis that reclassifies property assets into accelerated depreciation schedules, complete with detailed engineering reports, supporting documentation, and organized schedules ready for tax preparation.

CPA Partnership Program

Join over 125 trusted CPA firms earning commissions while expanding your service offerings. Refer clients with confidence and provide strategic tax planning without upfront costs or operational burden.

Implementation Support & Coordination

Dedicated post-study support included at no charge. Our team works directly with you to review reports, prepare depreciation schedules, and ensure seamless integration into current or amended tax returns.

Lookback Studies with Form 3115

Capture missed depreciation from properties placed in service up to 15 years ago. Claim all missed deductions in one year without amending prior returns, maximizing immediate tax benefits for your clients.

IRS Audit Defense

Lifetime audit protection included with every study at no additional charge. Our ASCSP-certified specialists handle all IRS inquiries and defend the report for as long as your client owns the property.

Rush Service Delivery

Expedited study completion in as little as one week for time-sensitive tax deadlines. Fast-track your client's savings when timing is critical, with transparent rush service pricing.

ASCSP-Certified Excellence

Engineered for Accuracy, Designed for CPA Confidence

Our engineering-based methodology goes beyond estimates—we provide IRS-compliant cost segregation studies backed by licensed professional engineers and ASCSP certification. Each study includes detailed engineering analysis, comprehensive documentation with photos and diagrams, and organized depreciation schedules formatted specifically for CPA use. With an average first-year deduction of $171,243 and typical ROI ratios of 10-25:1, you can confidently recommend our services knowing your clients receive maximum tax benefits while maintaining full audit protection. Our proprietary technology and streamlined process deliver studies in 2-4 weeks, not months.

Engineering team conducting detailed property analysis with measurement tools and digital documentation
95% Client Referral Rate

Trusted By CPA Firms Nationwide

Join over 125 CPA firms and tax advisors who trust Seneca Cost Segregation to deliver exceptional results for their clients.

"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."

Steven Schneider
Steven Schneider

"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."

Brayant Rivera

"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"

Jayce Parks
Jayce Parks

"Extremely professional and efficient in their cost set analysis. Great communication and transparency. Will be using them going forward on all my properties."

Jacob Basch
Jacob Basch

"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."

Robert Riskin

"Their team was incredibly professional, prompt, and easy to work with."

Trent Hanson

"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
Eliot Varnum

"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."

Trent H

"Seamless experience with great results. Highly recommend!"

Kim Giardino
Kim Giardino

"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."

Steven Schneider
Steven Schneider

"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."

Brayant Rivera

"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"

Jayce Parks
Jayce Parks

"Extremely professional and efficient in their cost set analysis. Great communication and transparency. Will be using them going forward on all my properties."

Jacob Basch
Jacob Basch

"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."

Robert Riskin

"Their team was incredibly professional, prompt, and easy to work with."

Trent Hanson

"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
Eliot Varnum

"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."

Trent H

"Seamless experience with great results. Highly recommend!"

Kim Giardino
Kim Giardino

"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."

Steven Schneider
Steven Schneider

"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."

Brayant Rivera

"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"

Jayce Parks
Jayce Parks

"Extremely professional and efficient in their cost set analysis. Great communication and transparency. Will be using them going forward on all my properties."

Jacob Basch
Jacob Basch

"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."

Robert Riskin

"Their team was incredibly professional, prompt, and easy to work with."

Trent Hanson

"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
Eliot Varnum

"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."

Trent H

"Seamless experience with great results. Highly recommend!"

Kim Giardino
Kim Giardino
The Seneca Advantage

Why CPA Firms Choose Seneca Cost Segregation

Built by investors, engineered for compliance, trusted by accounting professionals nationwide.

ASCSP-Certified Engineers

Licensed professional engineers with Certified Cost Segregation Professional (CCSP) designation ensure IRS-compliant studies backed by rigorous engineering methodology and industry best practices.

CPA-Ready Deliverables

Receive organized fixed asset schedules, depreciation tables, and comprehensive documentation formatted specifically for seamless tax return integration—saving you preparation time and ensuring accuracy.

Lifetime Audit Defense

Every study includes complimentary IRS audit protection for the entire property ownership period. Our specialists handle all audit inquiries with a money-back guarantee if material issues arise.

2-4 Week Turnaround

Proprietary technology and streamlined processes deliver engineering-based studies in 2-4 weeks versus the industry standard of 4-8 weeks, helping you meet tight tax filing deadlines efficiently.

Meet Our Leadership Team

Real estate investors and engineers who understand your clients' needs.

Dylan Scandalios, Co-Founder and CEO of Seneca Cost Segregation

Dylan Scandalios

Co-Founder and CEO

Dylan Scandalios is a multi-family property investor in the Pacific Northwest who brings firsthand experience in leveraging cost segregation for tax optimization. Before founding Seneca Cost Segregation, he closed millions of dollars in business for both public and private companies along the West Coast. As a Cost Segregation Expert and CEO, Dylan has helped real estate investors save millions on their taxes through strategic depreciation planning. His investor perspective ensures Seneca's services are designed around real-world property owner needs, while his business development expertise has built a trusted network of over 125 CPA firms and tax advisors who rely on Seneca for their clients' cost segregation studies. Dylan's leadership combines deep tax strategy knowledge with a customer-centric approach that prioritizes transparency and measurable ROI.

Paul Spies, Co-Founder of Seneca Cost Segregation

Paul Spies

Co-Founder

Paul Spies, a Marine Corps Sergeant, brings over 8 years of hands-on expertise in real estate construction and investment. As a Principal Broker and Licensed Contractor, he successfully flipped over 150 homes in just 4 years and led ground-up multi-family development projects. Paul has personally utilized cost segregation strategies since 2018 to accelerate depreciation and maximize tax benefits on his own portfolio. His construction background provides unique insight into property component classification and accurate cost allocation—the foundation of high-quality cost segregation studies. Paul co-founded Seneca Cost Segregation to deliver the same competitive tax advantages he benefited from to real estate investors and their CPAs at affordable prices with reliable on-time delivery. His military discipline and construction expertise ensure every study meets rigorous engineering standards while maintaining cost-effectiveness.

Frequently Asked Questions

How much should I pay for a cost segregation study?

Cost segregation study fees vary based on property size, complexity, and type. Entry properties ($300K-$1M building basis) typically cost $3,000-$12,000, medium properties ($1M-$3M) run $10,000-$20,000, large properties ($3M-$10M) cost $15,000-$30,000, and very large properties ($10M+) range from $30,000-$60,000 or more. The average first-year tax savings is $171,243, with typical ROI ratios of 10-25:1, meaning for every dollar spent on the study, clients receive $10-$25 in tax benefits. We provide free preliminary analyses to determine if a study is financially worthwhile for your client's specific property.

What deliverables will I receive as the client's CPA?

How does the CPA Partnership Program work?

Can cost segregation studies be performed on properties purchased in prior years?

What types of properties qualify for cost segregation studies?

How long does a cost segregation study take to complete?

What audit protection is included with the study?

Do you provide support for implementing the study findings into tax returns?

Ready to Expand Your Tax Planning Services?

Connect with our cost segregation specialists to discuss partnership opportunities and client case studies.

Serving CPA Firms Nationwide

Our engineering team is deployed across all 50 states, providing local expertise with national reach.

Does Your Client Need a Cost Segregation Study?

Get a free preliminary analysis and savings estimate for any property nationwide.

Certified & Trusted

Awards and Recognition

ASCSP American Society of Cost Segregation Professionals certification logo

ASCSP Certified

Member of American Society of Cost Segregation Professionals

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5.0 Rating

Trusted by clients nationwide with perfect reviews

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Veteran-Owned

Founded and led by Marine Corps veteran

Partner With Seneca Cost Segregation

Join over 125 CPA firms earning commissions while delivering proven tax savings to their clients. Contact us to discuss partnership opportunities or request a free analysis for your client's property.

Contact Us Today

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