A comparison of 6 providers — what each does best, at what price, with what turnaround.
Different providers fit different buyer profiles. Here's the short version:
| Provider | Price range | Turnaround | Site visit | Audit support |
|---|---|---|---|---|
| Cost Seg Smart (this site's operator) | $495–$2,995 | Under 1 hour | Remote (photos + assessor data + plan documents) | Written audit defense included with every study |
| KBKG | $3,000–$25,000+ | 4–8 weeks | On-site required for most engagements | Add-on retainer |
| CSSI (Cost Segregation Services, Inc.) | $5,000–$30,000 | 6–10 weeks | On-site | Included; expert testimony available |
| Engineered Tax Services (ETS) | $5,000–$50,000 | 6–12 weeks | On-site | Included |
| Capstan Tax | $4,000–$20,000 | 4–8 weeks | On-site | Included |
| Local CPA + engineering review | Varies — typically $2,500–$10,000 | Varies | Depends | Depends — verify in engagement letter |
Tahoe's cross-state CA/NV property mix benefits significantly from a CPA who explicitly understands California's §168(k) decoupling and the Schedule CA (540) addback mechanics. For California-side properties, the on-site engineer-led firms often haven't built the addback nuance into their standard workflow — verify it explicitly in your engagement letter. Cost Seg Smart's remote-first approach handles the CA addback math directly in the study output, with separate federal-and-CA depreciation schedules where applicable.
Three questions to answer before contacting any provider:
Price ranges are based on publicly stated tiers and industry sources as of 2026. Turnaround times reflect typical engagement lengths and may vary. We do not receive compensation from any other provider listed; this is not affiliate content.
The "best for" framing reflects each provider's actual public sweet spot — not paid placement. We don't claim to be #1 for every customer profile. We're the best fit for the segment described in our row (fast, affordable, remote-first, residential + STR + small commercial under $5M). For larger commercial portfolios, engineer-led firms with on-site capacity are the right choice.
See the Tahoe engine benchmarks Start a Cost Seg Smart study