An honest, side-by-side comparison of the leading cost segregation options in 2026 — pricing, speed, methodology, and what you actually get.
There are three categories of cost segregation services: DIY software (you do the work), automated done-for-you (you provide basics, they handle the rest), and traditional engineering firms (full-service, premium price). Here's how they compare.
| Cost Seg Smart | KBKG / CostSegregation.com | Traditional Firms | |
|---|---|---|---|
| Type | Done-for-you (automated) | Self-guided DIY software | Full-service engineering |
| Residential Price | $795 all-in | $495+ (varies by basis; add-ons extra) | $3,000 – $8,000 |
| Commercial Price | $1,295 – $6,995 | $1,295+ | $5,000 – $25,000+ |
| Turnaround | <1 hour | Varies (self-serve, requires data entry) | 4 – 8 weeks |
| You Do the Work? | No — we handle it | Yes — you input all data | No — full service |
| Engineering-Based | ✓ | ✓ | ✓ |
| Site Visit Required | No | No | Sometimes |
| Report Length | 35+ pages | Varies | Varies |
| Component Breakdown | ✓ 200+ components | ✓ | ✓ |
| FF&E / STR Support | ✓ Full modeling | ✓ | ✓ |
| Audit Documentation | ✓ Included | ✓ | ✓ |
| Audit Support | ✓ Included | — | Varies (often extra fee) |
| CPA-Ready Guarantee | ✓ Money-back | — | Varies |
| Commercial Properties | ✓ Full support | Limited | ✓ |
| Typical ROI | 30–60x | 10–40x | 5–15x |
You provide basic property info (address, purchase price, year built, square footage). We pull county assessor data, run 200+ component models calibrated to your region, and deliver a 35+ page CPA-ready PDF report in under 1 hour. No data entry, no site visit, no waiting.
KBKG is a respected national cost segregation provider. Their self-guided software at CostSegregation.com lets property owners input their own data to generate a report. Base price starts at $495, but scales with property basis and additional features — the final cost is often higher.
National and regional firms (CSSI, McGuire Sponsel, Capstan, etc.) that assign a dedicated engineer. Includes on-site inspections, detailed blueprints review, and extensive documentation. The gold standard — at a gold-standard price.
If you want the lowest starting price and don't mind doing the work yourself, KBKG's self-guided software starts at $495 — though the final cost scales with your property's basis and any add-ons. You'll need to input all property data accurately, and the quality of your report depends on the quality of your inputs.
If you want a hands-off experience with fast delivery, Cost Seg Smart ($795) is the clear choice. You provide basic property info and receive a 35+ page CPA-ready report in under 1 hour — with a money-back guarantee if your CPA can't use it.
If you have a large commercial property or need expert witness support, a traditional engineering firm is worth the premium. For a $5M+ commercial building, paying $10,000 for a study that identifies $500K+ in accelerated deductions is still an excellent ROI.
For most residential investors — especially STR/Airbnb owners — the automated options deliver the same IRS-defensible results as traditional firms at a fraction of the cost and time. The math is simple: a $795 study on a $750K property typically identifies $50,000–$70,000 in Year 1 tax savings. That's a 60x+ return on investment.
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