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.

• Cost Seg Smart · 9.5/10 · From $495 · Under 1 hour

  Engineering-based (RSMeans 2024) · All residential and commercial

• KBKG · 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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