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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.

"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

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

Trent Hanson

"Seamless experience with great results. Highly recommend!"

Kim Giardino
Kim Giardino

"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

"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

"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

"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

"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

"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

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

Trent Hanson

"Seamless experience with great results. Highly recommend!"

Kim Giardino
Kim Giardino

"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

"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

"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

"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

"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

"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

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

Trent Hanson

"Seamless experience with great results. Highly recommend!"

Kim Giardino
Kim Giardino

"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

"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

"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

"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

"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

"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
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 investor in multi-family properties in the Pacific Northwest and a recognized Cost Segregation Expert. Prior to co-founding Seneca Cost Segregation, Dylan closed millions of dollars of business for both public and private companies along the West Coast, developing deep expertise in tax strategy and real estate investment analysis. As CEO of Seneca Cost Segregation, Dylan has built a firm that has helped real estate investors save millions on their taxes through engineering-based cost segregation and energy tax incentive consulting. His hands-on investment experience combined with technical tax knowledge allows him to understand client challenges firsthand and deliver strategies that maximize cash flow and accelerate wealth building. Dylan holds the Certified Cost Segregation Professional (CCSP) designation from the American Society of Cost Segregation Professionals (ASCSP) and leads a team committed to bringing institutional-grade tax benefits to investors at accessible prices with exceptional service delivery.

Paul Spies, Co-Founder of Seneca Cost Segregation

Paul Spies

Co-Founder

Paul Spies is a Marine Corps Sergeant and licensed real estate professional who brings over 8 years of expertise in real estate construction to Seneca Cost Segregation. As a Principal Broker and Licensed Contractor, Paul successfully flipped over 150 homes in just 4 years and led ground-up multi-family development projects throughout the Pacific Northwest. His extensive construction background gives him unique insight into building components and cost allocation—critical expertise for accurate cost segregation and 179D energy efficiency analysis. Having personally used cost segregation strategies since 2018 to accelerate depreciation on his own investment properties, Paul co-founded Seneca Cost Segregation to democratize access to the same competitive tax advantages he benefited from as an investor. Paul's mission is to deliver engineering-based tax studies at affordable prices with military-grade reliability and on-time delivery. His combination of hands-on construction knowledge, real estate investment experience, and commitment to service excellence ensures clients receive studies grounded in real-world building expertise and delivered with precision.

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