Founded by investors who use it
Seneca Cost Segregation was founded by Dylan Scandalios and Paul Spies, real estate investors who use cost segregation on their own deals. Seneca is veteran-founded.
This is Seneca's commercial unit. Properties with 5 or more units and all commercial property are studied here. Properties with 1 to 4 units, and short-term rentals, stay with senecacostseg.com.
The engineering team
Our engineering team has completed 900+ commercial property studies, for every commercial property type, from hotels to lumber mills. We have deep experience in RV parks, mobile home parks, offices, manufacturing plants, hotels, motels, large multifamily, retail centers, self-storage, gas stations and medical offices.
Commercial estimates are prepared by Engineering. The training program is very selective for commercial projects, and every study is signed off by our Head of Engineering.
We are one of the only firms in the USA that can do a Production Property Study, for qualified production property under IRC §168(n).
How we work
We start by building the business case with you and your CPA. Then come four steps: an engineering-prepared estimate, information collection, a virtual or onsite tour, and the report. Pricing is fixed-fee, with a written proposal in 24 to 48 hours. See our process.
Lifetime audit defense and a money-back guarantee
Lifetime audit defense for the taxpayer and the property while under their ownership is included with every study. Every study is also backed by our money-back guarantee; see our Terms of Service for details.
We follow the IRS audit guide to the line
Every study is built to the IRS Cost Segregation Audit Techniques Guide (CSATG).
Built to the CSATG
Method and documentation follow the guide.
Signed off at the top
By our Head of Engineering.
Defended for life
Lifetime audit defense included.
Seneca has completed 10,200+ studies and analyzed $1B+ in cost basis. Our engineering team has completed 900+ commercial studies, and 425+ CPAs, advisors and real estate groups work with us.
We build the business case with you
We work with you and your CPA on the ROI before you commit.
An estimate from Engineering
Not a sales quote.
A fixed fee, in writing
Within 24 to 48 hours.
Your CPA involved
From estimate to final report.
About us
Still have a question? Ask Engineering.
Who is behind Commercial Cost Seg Studies?
Seneca Cost Segregation. This is Seneca's commercial unit, founded by Dylan Scandalios and Paul Spies, real estate investors who use cost segregation on their own deals. Seneca is veteran-founded.
Who prepares the studies?
Our engineering team, which has completed 900+ commercial property studies. Every study is signed off by our Head of Engineering.
Do your studies follow the IRS audit guide?
Yes. Every study follows the IRS Cost Segregation Audit Techniques Guide (CSATG) to the line.
How do you work with our CPA?
Directly, from the estimate to the final deliverable. On look-back studies we prepare Form 3115 for your CPA to sign and file.
Where do you work?
All 50 states, with Virtual or Onsite Tour options.
What about smaller residential properties?
Properties with 1 to 4 units and short-term rentals are studied through senecacostseg.com.
Get a Commercial Savings Estimate
Fixed-fee proposal in 24 to 48 hours.
- Prepared by Engineering
- Lifetime audit defense
- NDAs available
Request your estimate
Estimates are prepared by our Engineering team.
Request received
Engineering will review the property and send your written estimate and proposal within 24 to 48 hours.
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