Engineer-Driven Cost Segregation Studies in all 50 States

National Cost Segregation Services

The Ambrose Group delivers IRS-compliant, engineer-driven cost segregation studies to commercial property owners across all 50 states, unlocking significant first-year tax deductions and converting real estate holdings into immediate cash flow.

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In-House Construction Engineer
IRS-Compliant Studies
30+ Years Experience
All 50 States
Full Audit Support

Cost Segregation Calculator

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30+ Years

In Business Since 1994

All 50 States

Nationwide Cost Segregation Coverage

Engineer-Driven

IRS-Compliant Studies

Proven Results

First-Year Tax Savings

Nationwide Coverage

Nationwide Real Estate Services

We provide cost segregation services in all 50 states.

Northeast

South

Midwest

West

WHY THE AMBROSE GROUP?

Credentialed. Independent. Nationwide.

For over 30 years, The Ambrose Group has helped property owners, investors, and CPAs across the United States keep more of what they earn, through expert appraisal, aggressive tax representation, and engineered cost segregation.

MAI-certified appraisers

The highest credential in commercial real estate appraisal

USPAP-compliant methodology

Trusted by lenders, courts, and appraisal review boards

30+ years of nationwide expertise

Headquartered in Texas, serving all 50 states

In-house construction engineer

IRS-defensible cost segregation, not estimates

Full audit support

We stand behind every engagement with documentation and representation

Ready to talk?

Schedule Your Free Consultation

What Clients Say

See why Texas property owners and CPAs have trusted The Ambrose Group for 30+ years. Read client reviews.

     EXCELLENT  
  30 reviews

    
 
 
        
   Lori Gunn 
 7 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We’ve been working with The Ambrose Group since 2022, and they’ve been a big help with the property taxes for our land portfolio. We have a lot of properties to keep track of, and it’s been nice having a team we can count on to keep everything organized and stay on top of the details.
They’ve handled our property tax protests over the years and have been great about keeping us informed. It’s taken a lot off our plate knowing they’re handling things for us.
We’ve been very happy with their service and the results, and we appreciate the relationship we’ve built with their team. We would definitely recommend them to anyone with multiple properties.
  
 
       
   Clay K 
 14 days ago
 
 
 Trustindex verifies that the original source of the review is Google. The Ambrose group responded quickly and communicated effectively with us on any info needed to dispute our home appraisal.  They brought it down a significant amount and we are thankful!
  
 
       
   Philip Miller 
 19 days ago
 
 
 Trustindex verifies that the original source of the review is Google. This was our first year working with The Ambrose Group, and we couldn’t be happier with the results. They made the property tax protest process easy and were able to save us over $1,000 on our taxes. Great service and definitely worth it!
  
 
       
   Gary Jurney 
 20 days ago
 
 
 Trustindex verifies that the original source of the review is Google. The consistently deliver great results for me on my personal and investment real estate tax protests.
  
 
       
   lori chapin 
 20 days ago
 
 
 Trustindex verifies that the original source of the review is Google. I reached out to The Ambrose Group at the last minute and signed up the day before the deadline to protest the property taxes on my home. I honestly wasn’t sure if there was enough time for anything to be done, but they were able to get everything handled and take care of the process for me.

I was thrilled to find out they were able to save me over $2,000 on my property taxes! The whole experience was much easier than I expected, and Austin was helpful and responsive throughout the process. I’m so glad I reached out when I did and would absolutely recommend The Ambrose Group to other homeowners.
  
 
       
   Kimberli Jenkins 
 26 days ago
 
 
 Trustindex verifies that the original source of the review is Google. They are the consummate professionals.  We have relied on them for years to help with personal and commercial properties.
  
 
       
   Jerry Yuan 
 27 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We have been working with The Ambrose Group since 2023, and they have been a great partner for managing the property taxes on our residential and commercial properties. They handle multiple properties for us and make the entire process simple and stress-free. Their team is knowledgeable, professional, and always works hard to find opportunities for savings. We have been very happy with their service and would highly recommend The Ambrose Group to anyone looking for help with their property taxes!
  
 
       
   Louis Nicholson 
 32 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We recently signed up with The Ambrose Group to handle our property tax protesting, and we could not be more pleased with the results. They were able to save our company thousands of dollars in property taxes as well as our residential home. The process was incredibly easy and professional from start to finish. Their team is knowledgeable, responsive, and truly goes to work for their clients. We highly recommend The Ambrose Group to anyone looking to reduce their property tax burden!
  
 
       
   Jim Gibson 
 34 days ago
 
 
 Trustindex verifies that the original source of the review is Google. We have worked with The Ambrose Group for over five years to protest the property taxes on our rental properties and they have been fantastic to work with. Their team is knowledgeable, responsive, and consistently works hard to help us save money year after year. We appreciate having a team we can trust to handle the property tax process for us and highly recommend The Ambrose Group to anyone with rental or investment properties!
  
 
       
   Louis Yang 
 45 days ago
 
 
 Trustindex verifies that the original source of the review is Google. My family signed up with The Ambrose Group right before the May 15th deadline. Single family residence in greater Houston. The team was great and the results were equally as great as they saved us over $800. Easy to sign up. Easy to save.

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Frequently Asked Questions
Cost Segregation Nationwide | The Ambrose Group

Qualifications

What types of properties qualify for a cost segregation study?

Commercial, industrial, multifamily, and investment residential properties generally qualify nationwide. Eligible activities include commercial ownership, construction, renovation, acquisition, and prior-year catch-up.

What are the cost thresholds for a cost segregation study?

A study makes the strongest financial sense for properties with $500,000 or more in acquisition or construction cost, or $200,000 or more in renovation or improvement expenditures. Properties below these thresholds may still qualify, request a free benefit analysis.

Can I still benefit if I bought my property years ago?

Yes. A 481(a) adjustment lets you capture all missed depreciation from prior years in the current tax year without amending past returns, using IRS Rev. Proc. 2011-14. This applies to qualifying properties in any state.

Can The Ambrose Group handle properties in multiple states?

Yes. Because cost segregation is federal, The Ambrose Group runs engineered studies across multi-state portfolios, making it a fit for owners and CPAs managing properties in several states from one provider.

Tax Benefits

What is cost segregation, and how can it benefit me?

Cost segregation is a federal tax strategy that identifies and reclassifies building components to accelerate depreciation deductions, increasing tax savings and cash flow. The Ambrose Group performs engineered cost segregation studies nationwide.

How does cost segregation reduce my tax liability?

By reclassifying components from 27.5- or 39-year schedules to 5-, 7-, or 15-year schedules, cost segregation accelerates depreciation deductions and reduces taxable income in the early years of ownership. The larger the Year 1 deduction, the more cash stays available to reinvest.

How does bonus depreciation interact with a cost segregation study?

Bonus depreciation allows eligible short-lived assets identified in a study to be fully deducted in the year they are placed in service. The One Big Beautiful Bill Act of 2025 permanently restored 100% bonus depreciation for qualified property acquired and placed in service after January 19, 2025. Confirm how it applies to your tax year with your CPA.

What kind of first-year tax savings can I expect?

Results vary by property type, cost basis, construction year, and applicable depreciation rates. The Ambrose Group offers a free benefit analysis so you can see projected savings before committing. As a reference point, a $2.9M commercial property engagement delivered $657,692 in first-year depreciation increase and $230,192 in first-year tax savings.

IRS Compliance & Audit

Will a cost segregation study trigger an IRS audit?

No, not when the study is properly engineered and documented. The Ambrose Group follows the IRS Cost Segregation Audit Techniques Guide (ATG) on every engagement, and every study includes full audit support and documentation designed to withstand IRS scrutiny.

Why does it matter that The Ambrose Group uses an in-house engineer?

The IRS prefers engineering-based studies over rule-of-thumb estimates. The Ambrose Group’s in-house engineer conducts the analysis, reviews construction documents, and physically identifies reclassifiable components, producing a defensible, documented study. Many providers estimate; we don’t. This methodology applies to every study nationwide.

What is the IRS Cost Segregation Audit Techniques Guide?

The IRS Cost Segregation Audit Techniques Guide (Publication 5653) is the IRS’s published examiner guidance for reviewing cost segregation studies, covering methodology, documentation standards, and asset classification criteria. It is the industry’s primary reference for compliant, defensible studies, and The Ambrose Group adheres to it on every engagement.

What happens if the IRS audits my cost segregation study?

The Ambrose Group provides full audit support with every study, in any state. If the IRS reviews your study, our team provides documentation, responds to inquiries, and supports your CPA through the process.

Getting Started

How do I get started with a cost segregation study?

Request a free benefit analysis. The Ambrose Group reviews your property and estimates your potential first-year depreciation and tax savings before you commit to a study.

How much does a cost segregation study cost?

Fees vary by property type, size, and complexity. Most owners recover the cost of the study many times over in first-year tax savings, often the same filing. The Ambrose Group provides a free benefit analysis before any engagement so you can see projected savings first.

How does The Ambrose Group work with my CPA?

The Ambrose Group works alongside your CPA not around them. We deliver a CPA-ready report with all reclassification data, asset schedules, and supporting documentation so your tax advisor can apply the results directly.

What happens if the IRS audits my cost segregation study?

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