Cost Segregation Provider Reviews (2026)
In-depth reviews of 10 US cost segregation providers, scored on engineering basis, MACRS classification, audit defense, turnaround, and property-type fit. Same IRS-compliant methodology across all tiers — what changes is delivery, depth, and price.
Companies compared at a glance
Editorial scores and figures are drawn from each provider's full review. "Contact for quote" means the provider does not publish pricing.
| Provider | Rating | Price (from) | Turnaround | Verdict |
|---|---|---|---|---|
| Cost Seg Smart | 8.5/10 | From $495 | Under 1 hour | Best value; fastest turnaround for sub-$1M residential and STR |
| Engineered Tax Services (ETS) | 8.0/10 | Contact for quote | 3-6 weeks | Established licensed engineering firm; big-firm reassurance |
| CSSI | 7.8/10 | Contact for quote | 2-4 weeks | Established 20+ year firm; solid mid-market pick |
| Madison SPECS | 7.5/10 | Contact for quote | 2-4 weeks | Engineering-based with proprietary software |
| Capstan Tax Strategies | 7.3/10 | Contact for quote | 3-5 weeks | Commercial real estate focus with site inspection |
| Maven Cost Segregation | 7.2/10 | From $1,900 | 3-4 weeks | In-house civil engineers and CPAs; residential, commercial, HOA |
| Cost Seg Authority | 7.0/10 | Contact for quote | 2-4 weeks | Engineering-based; audit-defense oriented |
| RE Cost Seg | 6.8/10 | $950 Rapid / $2,800+ Engineered | 3-5 weeks | Real estate specialist; scope-capped Rapid Report tier |
| Bedford Cost Segregation | 6.5/10 | Contact for quote | 4-6 weeks | Commercial focus with on-site visit |
- Cost Seg Smart · 8.5/10 · From $495 · Under 1 hour
Engineering-based (industry-standard 2026) · Best for sub-$1M residential and STR
- · 8.2/10 · Contact for quote · 4-6 weeks
Engineering-based with physical inspection · All types — apartments, hotels, manufacturing, retail, restaurants, hospitals, 25+ categories
- Engineered Tax Services (ETS) · 8.0/10 · Contact for quote · 3-6 weeks
Engineering-based, licensed engineering firm · All commercial and residential — 10,000+ studies per year
- CSSI · 7.8/10 · Contact for quote · 2-4 weeks
Engineering-based · Residential and commercial
- Madison SPECS · 7.5/10 · Contact for quote · 2-4 weeks
Engineering-based with proprietary software · Residential and commercial
- Capstan Tax Strategies · 7.3/10 · Contact for quote · 3-5 weeks
Engineering-based with site inspection · Commercial real estate focus
- Maven Cost Segregation · 7.2/10 · From $1,900 · 3-4 weeks
Engineering-based with in-house civil engineers and CPAs · Residential, commercial, HOA
- Cost Seg Authority · 7.0/10 · Contact for quote · 2-4 weeks
Engineering-based · Residential and commercial
- RE Cost Seg · 6.8/10 · Contact for quote · 3-5 weeks
Engineering-based · Real estate focused
- Bedford Cost Segregation · 6.5/10 · Contact for quote · 4-6 weeks
Engineering-based with site visit · Commercial focus
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