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Expert 179D Energy Tax Deduction Consulting Services

Unlock substantial federal tax benefits through Section 179D energy-efficient commercial building deductions. Our certified consultants identify qualifying improvements in HVAC, lighting, and building envelope systems to maximize your immediate tax savings. With engineering-based analysis and IRS-compliant documentation, we help building owners, designers, and contractors claim deductions up to $5.00 per square foot while ensuring full audit protection.

Commercial building energy efficiency systems eligible for 179D tax deduction

Our 179D Tax Deduction Consulting Services

Comprehensive engineering-based consulting to identify, document, and maximize your Section 179D energy-efficient building tax deductions.

179D Eligibility Analysis

Comprehensive assessment of your commercial building projects to determine qualification for Section 179D deductions. Our certified consultants analyze building systems, energy improvements, and ownership structures to identify maximum tax benefit opportunities for owners, designers, and contractors.

Energy Modeling & Certification

IRS-compliant energy modeling and third-party certification services to substantiate your 179D deduction claims. Our engineering team uses DOE-approved software to model energy savings, compare against ASHRAE standards, and provide certified documentation for lighting, HVAC, and building envelope improvements.

Documentation & Compliance Support

Complete preparation of IRS Form 7205 and all required supporting documentation for your 179D tax deduction claim. We provide comprehensive technical reports, certification statements, and audit-ready documentation packages that satisfy Treasury regulations and IRS examination requirements.

Contractor & Designer Allocation

Strategic allocation services for architects, engineers, contractors, and designers who qualify for 179D deductions on government and tax-exempt buildings. We navigate allocation agreements, obtain necessary waivers, and maximize deductions for design and construction professionals on qualifying public projects.

Retrofit & New Construction Analysis

Specialized consulting for both new construction and major retrofit projects seeking 179D deductions. Our team identifies qualifying energy-efficient property installations, calculates applicable deduction amounts under current inflation-adjusted rates, and ensures compliance with prevailing wage and apprenticeship requirements.

179D Audit Defense

Comprehensive IRS audit support and defense services included with every 179D certification. If your deduction is questioned, our certified professionals provide expert testimony, respond to IRS inquiries, and defend the technical basis of your energy savings calculations at no additional charge.

Certified 179D Expertise

Maximize Tax Savings Through Energy-Efficient Building Certifications

Section 179D offers immediate federal tax deductions for commercial buildings that achieve specific energy efficiency targets. Our engineering-based consulting identifies qualifying improvements across HVAC, interior lighting, and building envelope systems. Whether you're a building owner claiming deductions on private property or a designer/contractor seeking allocations on government projects, we provide the certified third-party verification, energy modeling, and IRS-compliant documentation required to substantiate your deductions. With inflation-adjusted rates now reaching $5.00 per square foot and our proven methodology, we turn energy-efficient investments into substantial immediate tax benefits.

Engineering team conducting energy efficiency analysis for 179D certification
Proven Results

Client Success Stories

Discover how we've helped building owners and design professionals maximize their 179D tax benefits nationwide.

"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

"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

"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 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

"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

"Seamless experience with great results. Highly recommend!"

Kim Giardino
Kim Giardino

"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

"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

"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

"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

"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 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

"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

"Seamless experience with great results. Highly recommend!"

Kim Giardino
Kim Giardino

"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

"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

"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

"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

"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 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

"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

"Seamless experience with great results. Highly recommend!"

Kim Giardino
Kim Giardino

"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

"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
Trusted by CPAs & Real Estate Experts

Partner with Seneca Cost Segregation

Over 10,200+ engineered cost segregation studies completed across the United States. Average first-year tax deduction: $171,243

10,200+

Studies Completed

$171K

Avg Tax Savings

125+

Partners

Become a Partner
The Seneca Advantage

Why Choose Seneca Cost Segregation?

Veteran-owned expertise delivering maximum tax benefits with IRS-compliant engineering analysis.

Certified Professionals

ASCSP-certified consultants with engineering backgrounds and over 12 years of specialized tax incentive experience across 10,200+ property assessments nationwide.

Engineering-Based Methodology

Proprietary technology built by licensed engineers ensures precise energy modeling, accurate deduction calculations, and full compliance with IRS technical requirements and Treasury regulations.

Comprehensive Audit Protection

Iron-clad AuditDefense guarantee included at no additional charge—we defend your 179D deduction with expert testimony and technical documentation if the IRS ever questions your claim.

Nationwide Service Coverage

Deployed across all 50 states with virtual and on-site capabilities, delivering 179D certifications for commercial buildings from coast to coast with fast 2-4 week turnaround times.

Meet Our Leadership Team

Veteran-owned expertise with real-world investment experience guiding your tax strategy.

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

Dylan Scandalios

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.

Paul Spies, Co-Founder of Seneca Cost Segregation

Paul Spies

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.

Howard Hirsch, Chairman of Seneca Cost Segregation

Howard Hirsch

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.

Harry Papp, President and Treasurer of Seneca Cost Segregation

Harry Papp

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.

Frequently Asked Questions

What is the difference between 179 and 179D?

Section 179 allows businesses to immediately deduct the cost of qualifying equipment and personal property up to a set dollar limit in the year of purchase, primarily benefiting operational assets like machinery and vehicles. Section 179D, by contrast, is specifically designed for energy-efficient commercial buildings and provides a deduction based on square footage (up to $5.00 per square foot) for qualifying improvements to HVAC systems, interior lighting, and building envelopes. While Section 179 applies to movable business assets, 179D applies to permanent building systems that meet energy efficiency standards verified through certified engineering analysis and energy modeling.

Who is eligible for 179D tax deduction?

What types of building improvements qualify for 179D deductions?

How much can I save with a 179D deduction?

What documentation is required to claim a 179D deduction?

Can I claim 179D for buildings placed in service in prior years?

How long does the 179D certification process take?

What if my 179D deduction is audited by the IRS?

Ready to Claim Your 179D Deduction?

Talk to our certified energy tax consultants for a complimentary eligibility assessment and deduction estimate.

Certified & Trusted

Awards and Recognition

ASCSP Certified Cost Segregation Professional certification logo

ASCSP Certification

Certified Cost Segregation Professional designation

Licensed Professional Engineer certification badge

Licensed Engineers

Professional engineering licenses and technical expertise

5 star client satisfaction rating badge

5.0 Client Rating

Perfect satisfaction rating from nationwide clients

Get Your Free 179D Eligibility Assessment

Complete the form below and our certified consultants will analyze your project and provide a complimentary deduction estimate within 24 hours.

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.