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Best Cost Segregation Companies

The best cost segregation companies help you reap the most tax benefits while remaining compliant with IRS guidelines.

    Erica Seppala

  • Last updated onUpdated

    • Chelsea Krause

  • REVIEWED BY

    Chelsea Krause

    Expert Contributor

Our content reflects the editorial opinions of our experts. While our site makes money through referral partnerships, we only partner with companies that meet our standards for quality, as outlined in our independent rating and scoring system.

We reviewed top cost segregation companies based on free feasibility analysis, tax credit services, industry experience, customer reviews, tools and resources, and overall value. These are our top picks.

Compare Our Top Picks

ProviderBest ForAdditional Tax CreditsNext Steps
KBKG
4.9
Best Overall Cost Segregation ServicesR&D, 179D, 45L
Read ReviewRead More
Omega Accounting Solutions
4.3
Best For Multiple Tax CreditsR&D, HRCTC
Read More
Engineered Tax Services
4.2
Best For Large PropertiesR&D, WOTC, WIT, energy tax credits
Read ReviewRead More
CSSI
3.8
Best For Cost Segregation ExperienceR&D, 179D
Read ReviewRead More
Duffy+Duffy
3.6
Best For LEED-Certified ProjectsCost seg only
Read ReviewRead More
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Madison SPECS
3.8
Best For Remote StudiesCost seg only
Read ReviewRead More
Show Fewer Options

KBKG

Best Overall

Best Overall Cost Segregation Services

4.9/5Full Review

KBKG stands out for its mix of industry experience, free tools, tax services, and client resources. Its strong customer reviews and educational resources add to its its overall value.

KBKG offers cost segregation studies, a free feasibility analysis, a cost segregation calculator, tax benefit calculators, and services for R&D tax credits, fixed asset reviews, and green building incentives.

Best For
Cost segregation resources
Free Feasibility Analysis
Additional Tools & Resources
Cost seg calculator, tax calculators, tax software, webinars

PROS

  • Free feasibility analysis
  • Excellent customer service
  • Tax benefit calculators

CONS

  • Nontransparent fees
  • No live chat
Read Full Review
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Omega Accounting Solutions

Best For Multiple Tax Credits

4.3/5

Omega Accounting Solutions is built for businesses that want cost segregation help alongside broader tax and financial services.

Omega offers cost segregation studies, free consultations, R&D tax credits, High Road Cannabis Tax Credits, bookkeeping, fractional CFO services, 1099 filing, and business intelligence reporting. Its wider service mix makes it useful for businesses looking beyond a standalone cost segregation study.

Best For
Business tax credits & incentives
Free Feasibility Analysis
Additional Tools & Resources
Business intelligence reporting, bookkeeping, fractional CFO services

PROS

  • Free initial consultation
  • Excellent customer support
  • Additional tax & business services

CONS

  • Nontransparent fees
  • No knowledge base or help center
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Engineered Tax Services

Best For Large Properties

4.2/5Full Review

Engineered Tax Services is built for businesses, investors, and property owners with larger or more complex cost segregation needs.

ETS uses an engineering-based approach to cost segregation and also offers R&D tax credits, WOTC, energy tax credits and deductions, grant services, and other specialty tax services. Its case studies and educational resources make it useful for more involved projects.

Best For
Large and complex properties
Free Feasibility Analysis
Additional Tools & Resources
Case studies, podcasts, webinars, eBooks

PROS

  • Free feasibility analysis
  • Additional tax services available

CONS

  • Nontransparent fees
  • Customer service complaints
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CSSI

Best For Cost Segregation Experience

3.8/5Full Review

CSSI is a specialized cost segregation firm with experience across a wide range of commercial property sizes.

CSSI has completed 60,000+ cost segregation studies and offers free property analysis, engineering-based studies, Section 179D support, and R&D tax credit services. It’s best for property owners who want a compliance-focused provider that keeps cost segregation at the center of its services.

Best For
Properties of all sizes
Free Feasibility Analysis
Additional Tools & Resources
CPE presentations, articles, case studies

PROS

  • Free initial consultation
  • Strong focus on compliance
  • 60,000+ cost seg studies

CONS

  • Nontransparent pricing
  • Limited customer support options
Read Full Review
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Duffy+Duffy

Best For LEED-Certified Projects

3.6/5Full Review

Duffy+Duffy is a specialized cost segregation firm for property owners who want a straightforward study process.

The company has performed cost segregation studies since 2002 and focuses solely on cost segregation rather than broader tax services. Duffy+Duffy offers free feasibility analysis, LEED-certified project experience, a referral program, and secure document uploads for study materials.

Best For
LEED-certified projects
Free Feasibility Analysis
Additional Tools & Resources
Referral program, secure document portal

PROS

  • Free initial analysis
  • Referral program available
  • Studies based on case law & IRS guidelines

CONS

  • No additional tax services
  • Nontransparent pricing
  • Lack of client reviews
Read Full Review
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Madison SPECS

Best For Remote Studies

3.8/5Full Review

Madison SPECS is built for property owners who want a remote cost segregation study with less on-site disruption.

Its Smart Tour process lets an on-site employee work with a Madison SPECS expert using video and digital tools. The company also offers free initial analysis, detailed documentation, and 60+ in-house professionals, including engineers.

Best For
Remote studies
Free Feasibility Analysis
Additional Tools & Resources
Smart Tour kit, remote study tools

PROS

  • Free feasibility analysis
  • Smart Tour cost segregation kit
  • Tax and engineering approaches

CONS

  • No additional tax services
  • Nontransparent pricing
  • Lack of client reviews
Read Full Review
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Our Rating Methodology

Each provider gets 10–15 hours of research, is scored by a subject-matter expert, and is reviewed by a second expert before publication. Ratings are not influenced by our referral partnerships.

Features
50%
Fees
35%
User Reviews
10%
Customer Service
5%
Read our complete rating methodology

The 6 Best Cost Segregation Companies

Frequently Asked Questions

What is cost segregation?

Cost segregation is a tax strategy that allows property owners to accelerate depreciation deductions on parts of a residential or commercial building.

Instead of depreciating the entire building over 27.5 or 39 years, a cost segregation study identifies components that can be depreciated faster, often over 5, 7, or 15 years. These may include items like flooring, electrical systems, landscaping, and specialized equipment, which can increase deductions in the early years of ownership.

Who can benefit from cost segregation?

Cost segregation can benefit businesses and investors that own commercial or residential rental property and pay significant federal income taxes.

It’s most beneficial for properties that were bought, built, or renovated for $500,000 or more, though some providers may work with smaller properties. Common examples include restaurants, retail stores, medical offices, hotels, office buildings, and rental properties.

How much can cost segregation save in taxes?

Tax savings vary based on the property type, purchase price, improvements, and your tax situation.

As a general rule, a cost segregation study may reclassify 20% to 40% of a building’s cost into shorter depreciation schedules. That can create larger deductions in the early years and may help many property owners recover the cost of the study quickly.

What does a cost segregation study cost?

A cost segregation study often costs around $5,000 to $15,000 for a standard commercial property, though pricing depends on the property type, size, and complexity.

Some firms charge a flat fee, while others base pricing on the expected tax benefit. Many providers also offer a free upfront analysis to estimate your potential savings before you commit.

How do I choose the best cost segregation company?

Look for a cost segregation company with experienced engineers, tax professionals, transparent pricing, and IRS-defensible studies.

A good provider should offer a preliminary savings analysis before you commit. You can also ask for sample reports, references, and experience with properties similar to yours. Top providers include CSSI, Madison SPECS, Engineered Tax Services, and Omega Accounting Solutions.

Erica Seppala

Erica Seppala

Editor & Senior Staff Writer at Merchant Maverick
Erica has been writing about small business finance and technology since 2008. She joined Merchant Maverick in 2018 and specializes in researching and reviewing business software, financial products, and other topics to help small businesses manage and grow their operations. Her expertise has been cited in MSN, Reader's Digest, Vox, U.S. News & World Report, and Real Simple. She is a Certified ProAdvisor for QuickBooks Online and QuickBooks Payroll, a graduate of Limestone University, and currently resides in Greenville, South Carolina.
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