Compare the Best DIY Cost Segregation Companies in 2026
See why Cost Seg EZ is the most affordable and safest option on the market
When comparing DIY cost segregation tools, focus on what matters: transparent pricing, speed to a usable report, support in case of an audit, and credibility
2026 DIY Cost Segregation Software Tool Comparison
| Price | Speed | Audit Support | Credibility | |
|---|---|---|---|---|
Cost Seg EZRecommended | $595 flat | Minutes | Optional add-on | 20+ years; $7B+; 100% IRS acceptance; KPMG pedigree |
| DIYCostSeg | Up to $2,495 | Minutes | Optional add-on | Team and experience is unclear |
| KBKG Residential | Up to $1,795 | Minutes | Yes | Experienced firm |
| RE Cost Seg | Unclear, requires a quote | 5-20 business days | Yes | Experience is unclear |
| Remote Cost Seg | Unclear, requires a quote | 2 hours of calls then several weeks | Yes | Experience is unclear |
Evaluating another firm that isn’t listed above? Feel free to reach out to us, and we’ll gladly share our honest opinion. What matters most to us is that cost segregation remains a reputable practice with the IRS.
Detailed Comparison
Cost Seg EZ – Best for DIY or Expert Review
The most accessible and flexible cost segregation option: transparent flat pricing at $595 for a DIY report. The option for an engineer to review and for audit protection. No consultation calls.
Pros: Reports in minutes; flat pricing with no surprises; KPMG-backed methodology; 100% IRS acceptance rate; simple interface; optional audit-support; no correction fees for same property.
Best for: Small landlords, Airbnb and short-term rental owners, first-time cost seg users, investors who want DIY speed with the option of expert review, and anyone who values transparent pricing.
DIYCostSeg – Budget-Friendly Speed
Offers a fast process as a DIY tool. Uses a tiered pricing structure based on property type and basis.
Pros: Fast processing; handles both residential and light commercial; optional audit assistance.
Cons: Nameless, faceless company with unclear experience and creditability; unclear engineering methodology; unclear pricing that escalates for complex or higher-basis properties; $49 report correction fee.
Best for: Investors who don’t need specialized support, STR-specific guidance, or expert-review options.
KBKG Residential – Tiered & Credit-Based
Uses a tiered pricing structure based on property type and basis. Their credit-based pricing system is for experienced users.
Pros: Handles both residential and light commercial; audit support; good reputation in the industry.
Cons: System can be confusing for individual investors with a longer learning curve; unclear engineering methodology; unclear pricing that escalates for complex or higher-basis properties.
Best for: Properties with unique or complex components; investors who don’t need specialized support, STR-specific guidance, or expert-review options.
RE Cost Seg – Traditional Advisory
A team-based, advisory approach rather than self-serve DIY.
Pros: Full-service support; emphasis on tax and cash-flow outcomes; team of advisors and engineers.
Cons: Less emphasis on instant or same-day reports; higher pricing with less transparency because quote-based; unclear engineering methodology.
Best for: Investors who prefer a hands-off, full-service experience and don’t need same-day or DIY reports.
Remote Cost Seg – Consultation-Led
3-step process requires several hours of calls before report delivery.
Pros: Structured process; audit-focused messaging; personal consultation.
Cons: Not self-serve; unclear engineering methodology; 2+ hours of calls before delivery; no instant or same-day DIY option; quote-based, non-transparent pricing.
Best for: Investors who prefer a consultation-first experience and don’t need instant or DIY reports.
Why Cost Seg EZ stands out
DIY and engineer review in one place. Get an IRS-ready cost segregation report instantly, or choose the engineer-reviewed option for expert validation in 3–5 business days, without lengthy consultation calls.
Transparent pricing. Flat $595. No charging you more because your property is larger. No hidden correction fees for the same report.
Methodology you can trust. Our founder led cost segregation at KPMG for over a decade. 20+ years combined experience, $7B+ in cost basis analyzed, and a 100% IRS acceptance rate on our studies.
Audit protection when you need it. Add-on audit protection to work with your tax professional, to get documentation, and to get IRS response support if you are ever under audit.
Cost Seg EZ's Experience
Why Choose Cost Seg EZ
Nationwide experience
We have completed cost segregation studies in all 50 states over the past 20+ years.
Audit protection available
Add audit protection for comprehensive support if your study is ever questioned by the IRS.
IRS-accepted studies
100% IRS acceptance rate thanks to our engineering-based methodology and report quality.
What to Look for When Choosing a Provider
Unfortunately, some firms make aggressive claims without the experience or transparency to back them up. When evaluating a cost segregation provider, look for these signs of credibility—and watch for claims that seem excessive.
- 1
Experienced engineers are named
Look for experienced engineers who are clearly listed on the firm’s website or About page.
- 2
Engineering methodology is clear
Choose a provider that explains its engineering methodology and how property components are classified.
- 3
Corporate history is established
Look for a clear, long-standing corporate history that can be independently verified.
- 4
Size and savings claims are credible
Treat excessive or poorly supported claims about firm size or projected tax savings as a warning sign.
- 5
Report sign-off is transparent
It should be clear who reviews and signs off on each report, including their qualifications.
- 6
Leadership has cost segregation experience
Make sure the firm is led by people with real cost segregation experience—not only general real estate experience.
If you’re unsure about a firm, feel free to contact us. We’d be happy to share our honest opinion.