# costsegroi.com

> Live ROI calculator for cost segregation studies. Tells real estate investors and CPAs whether ordering a $495–$2,995 cost segregation study is a good investment for their specific property, tax bracket, and acceleration potential.

Part of the Cost Seg Smart network. Operated by Cost Seg Smart, LLC (Los Angeles, CA), founded 2026.

## What this site is

A purchase-decision calculator. The question it answers: "Is the study fee worth it for my specific tax situation?" — distinct from costsegworthit.com (binary yes/no), shouldicostseg.com (persona match), and costsegtool.com (deduction estimate).

Headline metric: ROI multiple (Year-1 federal tax savings ÷ study fee). Typical results: 30–150× on a 2025+ acquisition with material participation or REPS.

## What's on the page

- A four-input calculator (purchase price, property type, federal bracket, year of acquisition; optional state tax rate and participation status)
- Property-type acceleration defaults (STR 30%, SFR 18%, MF 17%, office 29%, medical 33%, etc.) with override
- Bonus depreciation lookup by year (100% for 2025+ per OBBBA; 60% for 2024; 80% for 2023; 100% for 2022 and earlier)
- Study fee lookup by purchase price tier ($495 / $795 / $1,495 / $1,995 / $2,995)
- Inline edge-case warnings (passive limitation under §469, Form 3115 lookback unlock, study fee tier disclosure)
- Scrollytelling explainer of the four levers (basis, acceleration, bonus depreciation, bracket)
- Three worked sample scenarios (Phoenix STR / 12-unit MF / lookback duplex)
- Four honest counter-cases ("when this doesn't work")
- 6 FAQ entries with FAQPage schema

## Authority signals

- Author: Jonathan Hersh, PhD (Economist, founder of Cost Seg Smart)
- Citations include: IRC §168(k), §469, IRS Pub 946, Rev. Proc. 87-56, Rev. Proc. 2025-32, Form 3115 (§481(a))
- Organization sameAs: Wikidata Q139328268, LinkedIn cost-seg-smart, Crunchbase cost-seg-smart

## Primary CTA

All conversion paths route to https://costsegsmart.com/order with UTM source=costsegroi.

## Disclaimers

- The calculator output is an estimate; an actual cost segregation study is what's IRS-defensible
- Not tax advice. Consult a qualified CPA or tax attorney before relying on calculator output

## Related network properties

- https://costsegsmart.com — order a study
- https://costsegtool.com — deduction estimate
- https://shouldicostseg.com — persona-based decision hub
- https://costsegworthit.com — single-page worth-it tool
- https://costsegregationreviews.com — provider comparison