How We Rank Cost Segregation Companies
Scoring Methodology
Every provider is evaluated using the same methodology. We do not adjust scores based on advertising relationships or compensation.
Property Type Scores (1-10 scale)
Each provider receives a score from 1 to 10 in each property category they serve. A dash (-) means the provider does not meaningfully serve that category.
| Category | What We Evaluate |
|---|---|
| Residential (SFR) | Pricing accessibility for standard rentals, report quality, CPA acceptance rates, value for properties under $1M. |
| STR / Airbnb | Furnished component analysis, material participation documentation, STR-specific expertise. Higher IRS scrutiny makes quality critical here. |
| Multifamily | Component-level detail for multi-unit buildings, partial dispositions handling, experience with complex unit mixes and common areas. |
| Commercial / Office | Engineering depth for building systems, on-site capability, experience with tenant improvements, HVAC systems, and specialized components. |
| Industrial / Retail | Specialty equipment knowledge, site-specific analysis, niche expertise for manufacturing, warehouse, restaurant, and retail buildouts. |
Overall Score
The overall score is the average of the property type scores for each provider. Providers that do not serve a category are excluded from that average (not penalized with a zero).
Scoring Scale
| Score | Meaning |
|---|---|
| 8.0 - 10 | Excellent -- strong reviews, few complaints, high CPA acceptance |
| 7.0 - 7.9 | Good -- positive overall, minor issues or limited data in some areas |
| 5.0 - 6.9 | Mixed -- some concerns, limited data, or inconsistent quality signals |
| Below 5.0 | Caution -- significant complaints, fraud allegations, or quality red flags |
Data Sources
Scores are derived from multiple sources, cross-referenced where possible:
- Review platforms: Google Reviews, Yelp, Trustpilot, BBB, Birdeye
- Investor communities: BiggerPockets forums, Reddit (r/realestateinvesting, r/ShortTermRentals, r/tax, r/taxpros)
- CPA feedback: Conversations with CPAs who regularly file cost segregation deductions
- IRS compliance indicators: Alignment with the IRS Audit Techniques Guide, use of recognized cost databases (RSMeans, Marshall & Swift), professional certifications (CCSP, PE licenses)
- Complaint analysis: BBB complaints, negative reviews, fraud allegations, reported CPA rejections
- Pricing data: Published pricing where available; investor-reported quotes from forums; direct inquiries
- Industry knowledge: The site operator works in this industry, which provides additional context but also introduces potential bias (see disclosures above)
What we could not verify
For many providers, we could not independently verify claims about the number of studies completed, audit defense success rates, or internal methodology. Where a provider makes a claim we could not verify, we note it but do not treat it as confirmed fact.
Company Tiers
We group providers into five tiers based on business model, not quality. A Tier 2 firm can outscore a Tier 1 firm. Tier placement reflects how the company operates, not how good it is.
| Tier | Description | Typical Pricing |
|---|---|---|
| Tier 1: Full-Service National | Established firms with 20+ years, on-site engineering, CCSP staff, large study volumes | $5,000 - $15,000+ |
| Tier 2: Mid-Market & Specialty | Innovative firms using remote/automated methods or specializing in specific property types | $500 - $10,000 |
| Tier 3: Caution / Red Flags | Providers with significant complaints, fraud allegations, or unresolved quality concerns | Varies |
| Tier 4: CPA / Accounting Firms | Accounting firms offering cost segregation as part of a broader practice | $3,000 - $25,000+ |
| Tier 5: Online / Low-Cost | DIY software, AI-guided tools, and semi-automated platforms | $100 - $4,500 |
Pricing Transparency
Most cost segregation firms do not publish pricing. We consider this a significant industry problem. Investors deserve to know what something costs before sitting through a sales call.
Where pricing is published on a provider's website, we use those figures. Where pricing is not published, we estimate ranges based on investor-reported quotes from forums, published industry data, and general market knowledge. Estimated pricing is marked as "Est." in our tables.
If you have received a quote from any provider that differs from our estimate, we welcome the correction at info@costsegregationreviews.com.
Updates, Corrections, and Feedback
Rankings are reviewed and updated periodically. Scores may change as new reviews, pricing changes, or complaints emerge.
If you are a provider listed on this site and believe your information is inaccurate, or if you are an investor whose experience differs from our assessment, we welcome your input. Send verifiable information to info@costsegregationreviews.com and we will review it for future updates.
Providers listed on this site are welcome to dispute their ranking or request corrections at any time. We review every submission and will update scores when supported by verifiable evidence.
We will not change scores based on requests alone. Changes require supporting evidence (reviews, documentation, corrected pricing, etc.).
Important Disclosures
Material relationship: We operate Cost Seg Smart, a cost segregation provider included on this site. This site is a comparison and market guide created by a market participant, not a neutral or independent publisher. We were frustrated with the lack of pricing and quality transparency in this industry and built this guide to help owners and CPAs compare providers. That said, we have a financial interest in the market we are comparing. You should weigh our rankings accordingly.
Compensation: This site may receive compensation from some providers listed, including through affiliate relationships, referral fees, or advertising. Compensation does not determine rankings -- our scoring methodology is applied consistently to all providers, including our own company.
Not tax or investment advice: The information on this site is for educational and comparison purposes only. It does not constitute tax, legal, or investment advice. Consult a qualified CPA or tax professional before making decisions about cost segregation.
Legal Notice
The information on CostSegregationReviews.com is for informational and educational purposes only. It does not constitute tax, legal, financial, or investment advice. Rankings and scores reflect the opinions of the site operator based on publicly available information and industry knowledge, and are subject to change.
The operator of this website has material financial relationships within the cost segregation industry, including ownership of or affiliation with one or more providers reviewed on this site. While we apply our scoring methodology consistently to all providers, readers should consider this relationship when evaluating rankings.
This site may receive compensation from listed providers through affiliate arrangements, referral fees, or other commercial relationships. Compensation does not determine rankings or scores.
We make no representations or warranties, express or implied, about the accuracy, completeness, reliability, or suitability of any information on this site. Use of this site and reliance on its content is at your own risk. We disclaim all liability for losses, damages, or costs arising from use of or reliance on information provided herein.
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