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Cost Segregation Studies in Scottsdale — Save 20–40% on Taxes

Scottsdale property owners are discovering a powerful tax strategy that turns 20-40% of their building costs into immediate deductions. Our engineering-based cost segregation studies unlock front-loaded depreciation benefits, helping you reduce federal tax liability and reinvest savings faster. With Arizona's robust real estate market and our veteran-founded expertise, we deliver IRS-compliant reports in 2-4 weeks—so you can keep more of what you earn and accelerate your next investment.

Professional engineer conducting cost segregation analysis on Scottsdale commercial property

Our Cost Segregation Services

Comprehensive tax-saving solutions for Scottsdale property owners, from initial analysis to ongoing audit defense.

Engineering-Based Cost Segregation Study

Complete property analysis reclassifying assets into 5, 7, or 15-year depreciation schedules. Includes virtual or on-site inspection, detailed engineering report, depreciation schedules, and CPA-ready documentation—delivered in 2-4 weeks with audit defense included.

Lookback Studies (Properties Held 1-15 Years)

Reclaim missed depreciation from properties purchased or renovated up to 15 years ago without amending returns. Use IRS Form 3115 to capture all missed deductions in one year, maximizing immediate tax benefits and cash flow.

Virtual Property Inspections

Convenient video-based property tours conducted at your schedule. Our engineers complete real-time component analysis in 30-45 minutes, eliminating travel costs and accelerating study delivery to 2-3 weeks while maintaining full engineering accuracy.

Rush Study Delivery

Expedited completion for urgent tax deadlines—receive your engineered study in as little as one week. Ideal when you need immediate documentation for filing extensions, year-end planning, or time-sensitive investment decisions.

CPA Coordination & Implementation

Included post-study support for seamless tax return integration. We work directly with your accountant to implement depreciation schedules, prepare Form 3115 for lookback studies, and answer questions—ensuring your CPA maximizes every deduction.

Lifetime IRS Audit Defense

Iron-clad protection for as long as you own the property. If the IRS questions your study, our specialists handle all communications, provide supporting documents, and defend classifications at no additional charge—backed by our money-back guarantee.

Engineered Tax Savings

Turn Your Scottsdale Property Into a Powerful Tax Asset

Arizona's competitive real estate market demands smart tax strategies. Our engineering-based cost segregation studies identify building components that qualify for accelerated depreciation—transforming standard 27.5 or 39-year schedules into immediate 5, 7, and 15-year deductions. Scottsdale investors benefit from our veteran-founded precision, proprietary compliance technology, and 2-4 week turnaround. With an average first-year savings of $171,243 and typical 10-25:1 ROI, your study pays for itself many times over while giving you cash flow to reinvest faster in Arizona's growing market.

Detailed cost segregation report with depreciation schedules and property component breakdown
Trusted By Investors

Success Stories

Join 10,200+ property owners who've unlocked millions in tax savings with Seneca Cost Segregation.

"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

"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'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

"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

"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

"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

"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'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

"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

"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

"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

"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'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

"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

"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
The Seneca Difference

Why Choose Seneca Cost Segregation?

Over a decade of engineering excellence serving Scottsdale's real estate investors with proven tax-saving results.

12+ Years of Proven Expertise

Over 10,200 properties assessed nationwide with veteran-founded precision. Our engineering team delivers $171,243 average first-year savings backed by proprietary compliance technology.

Fast 2-4 Week Turnaround

Arizona investors need speed—we deliver engineered studies in half the industry standard time. Virtual tours and streamlined processes mean you get IRS-compliant reports when tax deadlines matter most.

Lifetime Audit Defense Guarantee

Iron-clad protection for as long as you own your Scottsdale property. Our specialists handle all IRS communications at no extra charge, backed by a money-back guarantee if material issues arise.

Real Investors, Real Results

Founded by real estate investors who've flipped 150+ homes and developed multi-family projects. We use cost segregation ourselves—bringing you the same competitive edge we've relied on since 2018.

Meet The Seneca Leadership Team

Veteran-owned expertise with real estate investment experience and engineering precision.

Dylan Scandalios, Co-Founder and CEO

Dylan Scandalios

Co-Founder and CEO

Dylan Scandalios leads Seneca Cost Segregation as Co-Founder and CEO, bringing a unique combination of real estate investment experience and cost segregation expertise. As an active investor in multi-family properties throughout the Pacific Northwest, Dylan understands firsthand the financial pressures and tax challenges facing property owners. Before founding Seneca, he closed millions of dollars in business for both public and private companies along the West Coast, developing the sales acumen and client relationship skills that now define Seneca's customer-centric approach. As a certified Cost Segregation Expert, Dylan has personally helped real estate investors save millions on their taxes through strategic depreciation planning. His hands-on investment background enables him to speak the language of real estate professionals while delivering engineering-based tax solutions that create immediate cash flow improvements. Dylan's vision for Seneca centers on making sophisticated tax strategies accessible and affordable for investors at every level, backed by the speed and precision that active investors demand.

Paul Spies, Co-Founder

Paul Spies

Co-Founder

Paul Spies co-founded Seneca Cost Segregation after recognizing the transformative power of cost segregation in his own real estate ventures. A Marine Corps Sergeant with over 8 years of expertise in real estate construction, Paul brings boots-on-the-ground knowledge that few cost segregation providers can match. As both a Principal Broker and Licensed Contractor, he has successfully flipped over 150 homes in just 4 years while also leading ground-up multi-family development projects. Paul began using cost segregation strategies in 2018 to accelerate depreciation on his own investment properties, experiencing firsthand the cash flow advantages and tax savings that engineered studies provide. This personal success drove him to make the same competitive edge available to other investors at an affordable price point with reliable, on-time delivery. His construction background gives him an intuitive understanding of building components and systems, ensuring Seneca's studies accurately classify assets while maintaining strict IRS compliance. Paul's military discipline and contractor precision are embedded in every study Seneca delivers.

Frequently Asked Questions

What is a cost segregation study and how does it save taxes?

A cost segregation study is an IRS-approved engineering analysis that reclassifies building components from standard 27.5 or 39-year depreciation into shorter 5, 7, or 15-year schedules. By accelerating depreciation, you receive larger tax deductions in earlier years—often reducing federal taxes by 20-40% of your property's depreciable basis. This front-loads tax savings, creating immediate cash flow you can reinvest. Our engineering team identifies qualifying components like electrical systems, flooring, landscaping, and site improvements that legally qualify for faster write-offs under IRS guidelines.

How much does a cost segregation study cost in Scottsdale?

Can I do a cost segregation study on a property I bought years ago?

How long does a cost segregation study take to complete?

What types of properties qualify for cost segregation in Scottsdale?

What if the IRS audits my cost segregation study?

Do I need to provide detailed property records for the study?

How do I implement the study results with my CPA or tax professional?

Ready to Unlock Your Property's Tax Savings?

Speak with our cost segregation specialists for a free consultation and personalized savings estimate.

Certified & Trusted

Awards and Recognition

ASCSP certification logo

ASCSP Certified Professionals

American Society of Cost Segregation Professionals certification

Licensed professional engineer certification badge

Licensed Professional Engineers

State-licensed engineering expertise on every study

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5.0 Client Rating

Perfect rating from satisfied property owners nationwide

Get Your Free Cost Segregation Analysis Today

Discover how much you could save with a complimentary property assessment. Our Scottsdale specialists will analyze your property and provide a detailed savings estimate within 24-48 hours—with no obligation.

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