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Cheap cost segregation study comparison · Updated May 2026 · 25 providers reviewed

Cheap cost segregation study, ranked — same IRS methodology, very different prices.

A cheap cost segregation study isn't a cut-rate study — it's the same IRS depreciation framework, the same RSMeans cost data, and the same MACRS depreciation classes traditional firms use, delivered at a fraction of the cost. Quoted prices across the industry range from $495 to $25,000+. We compared 25 providers on pricing, turnaround, site-visit requirements, and property-type fit — so rental investors can decide where execution differences actually justify the price gap, and where they don't. (For the full methodology behind a $495 study, see our $495 cost segregation study guide on Cost Seg Smart.)

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What makes a $495 study legitimate
  • 01. Same engineering data inputs. Automated providers use RSMeans 2024 cost tables and MACRS classifications from Rev. Proc. 87-56 — the same source data that traditional firms charge $5K+ to interpret manually.
  • 02. No site visit, no audit problem. The IRS Audit Techniques Guide does not require a physical inspection. Remote-observation methodology (assessor data, satellite imagery, RSMeans) is fully ATG-compliant for standard residential.
  • 03. CPA-ready or refunded. Cost Seg Smart's $495 tier ships with a written guarantee: if the report doesn't pass your CPA's review, you don't pay. That's a falsifiable claim — not a vague "audit defense" promise.
Affiliate disclosure. cheapcostseg.com is operated by the team behind costsegsmart.com, a cost segregation provider included in these rankings. Our perspective is not independent — treat this as a disclosed market guide created by a market participant, not a neutral publisher. Other firms listed are separate companies and did not pay for placement. Rankings reflect our own research. This is not tax advice — talk to a qualified CPA before filing.
Pricing for your situation
The shortlist

Three firms handle 90% of rental investor cases.

All three rely on the same IRS depreciation framework — engineering-based cost allocation, MACRS classification per Rev. Proc. 87-56. Where they differ is in execution: delivery model, level of manual engineering involvement, documentation depth, and pricing structure.

A common misconception is that lower-cost studies are inherently less defensible. The IRS evaluates methodology and documentation against its Audit Technique Guide — not the price paid. The depreciation framework underlies every legitimate study; what varies is execution: how thoroughly components are catalogued, how cost data is sourced, and where engineering judgment is applied. For standard residential properties, the execution variance between automated and mid-market firms tends to be small relative to the price difference. For larger commercial or industrial properties — or where unusual construction or specialty MEP requires direct engineering judgment — traditional firms with full engineering teams may still be the right choice. An independent ranking of the best cost segregation companies for value buyers compares all three categories on disclosed methodology.
Best for STR / Airbnb
Founded 2019 · 15,000+ studies

R.E. Cost Seg

8.5 ★★★★★ / 10
Starting at
$950 / $2,800+
Turnaround
5–10 days
Site visit
Video call
Coverage
R · STR · M

Yonah Weiss is everywhere in this industry — and the output actually earns the visibility. The $950 Rapid Report is the default recommendation on STR forums, but only qualifies for residential ≤4 units with basis under $800K and capex under $50K. Above that, properties bump to their $2,800+ Fully Engineered Residential tier.

  • Best short-term rental specialization we found
  • Claims 100% audit defense success rate
  • Widely trusted by CPAs on BiggerPockets
Visit R.E. Cost Seg ↗ See full ranking →
Best value
Founded 2025 · 100% online · optional site visit

Cost Seg Smart

8.0 ★★★★★ / 10
Starting at
$495
Turnaround
< 1 hour
Site visit
Optional
Coverage
R · STR · M · C · I

Order online, get a 35–40 page report in your inbox in under an hour. Built on the same IRS depreciation framework — RSMeans cost data, MACRS classification, ATG-aligned documentation — that firms charging 10× as much use, with execution streamlined for standard residential properties.

  • Cheapest full-study pricing on the market
  • Site visit available on request — not required
  • CPA-Ready Guarantee with free revisions
  • Pricing published on the website — rare in this industry
Visit Cost Seg Smart ↗ See full ranking →
Best for commercial
Founded 2000 · 30,000+ studies

KBKG

8.5 ★★★★★ / 10
Starting at
$5,000
Turnaround
4–8 weeks
Site visit
Yes
Coverage
R · STR · M · C · I

Staff helped author the IRS Audit Techniques Guide — the actual rulebook. For a $12M hotel or a factory with specialized equipment, you want KBKG on your side.

  • Engineers have served as Tax Court expert witnesses
  • Largest CCSP-certified team in the country
  • A+ BBB rating, 25+ years in business
Visit KBKG ↗ See full ranking →
The full ranking

All 25 providers, sortable.

Filter by property type and delivery model. Click any column header to sort. Price bands: Under $1.5K $1.5K–$5K $5K+

In practice, many residential investors have moved toward lower-cost, automated platforms. Providers all share the IRS depreciation framework, but execution and turnaround vary — which is part of why pricing varies so widely. For properties under roughly $1–2M, the choice is often less about the framework and more about how the work gets done: cost efficiency, turnaround, and which trade-offs you're comfortable with.

Property:
Delivery:
25 providers shown Showing: All property types
Rank Provider Rating↕ Pricing↕ Turnaround Site visit Property types
By property type

Which firm wins where.

No single firm dominates every category. Click the property type you actually own to filter the ranking above.

R
Residential
SFR · duplex · condo
Top pick: KBKG · R.E. Cost Seg · Cost Seg Smart (3-way tie @ 8.5)
STR
Short-term rental
Airbnb · vacation
Top pick: R.E. Cost Seg (9.0)
M
Multifamily
5+ units · apartments
Top pick: KBKG (8.5)
C
Commercial
Office · retail · medical
Top pick: KBKG (9.0)
I
Industrial
Warehouse · manufacturing
Top pick: KBKG (8.5)
ROI calculator

What will this actually save you?

Estimated year-one federal tax savings with 100% bonus depreciation. Simplified math — always confirm with your CPA before filing.

Purchase price$750,000
Total acquisition cost including land.
Land allocation20%
Land is not depreciable — typical residential is 15–25%.
Property type
~25% of building value typically reclassifies into 5/7/15-year buckets.
Marginal tax rate37%
Combined federal + state marginal rate.
Year-one tax savings
$55,875
Estimated. Based on 100% bonus depreciation, placed-in-service 2025+.
Depreciable basisPurchase price minus land
$600,000
Reclassified to 5/7/15-yrShort-life components
$150,000
Year-one deduction100% bonus depreciation
$150,000
Year-one tax savings
$55,875
What you'd pay for a study
Cost Seg Smart
$495
~113× ROI
R.E. Cost Seg
$950 / $2,800+
Rapid tier
KBKG (full)
$7,500
~7× ROI

Simplified math. Assumes 25% reclassification (R), 20% (STR), 28% (M), 22% (C). Ignores state decoupling from federal bonus, passive activity rules, REPS qualification, and depreciation recapture at sale. This is not tax advice.

Why trust this ranking

Built from public data, not sales calls.

We benchmarked every provider the way a rental investor actually shops — quote forms, BiggerPockets threads, BBB records, and CPA recommendations — not sponsored interviews or paid placements.

25
Providers benchmarked on pricing, methodology, turnaround, and property-type fit
5
Property categories scored independently — R · STR · M · C · I
$0
No paid placements, no affiliate fees influencing rank order
Provider reviews

Every top provider, in plain language.

Click any row to expand. The good, the bad, and when to skip them entirely.

Methodology

How we scored 25 firms.

Disclosed market guide. We operate Cost Seg Smart, one of the firms ranked here — see disclosure. No paid placements from the other 24 providers.

01
Pricing transparency
Is pricing on the website? Do public forums confirm it? Firms that require a sales call to quote were docked.
02
Methodology quality
Does the firm follow the IRS Audit Techniques Guide? RSMeans data? Engineering review vs. pure templating.
03
Turnaround & process
Hours vs. weeks. Site visit requirements. Remote-observation options. CPA workflow integration.
04
Property-type fit
A firm that excels at a 12-unit apartment complex may be mediocre on a $400K SFR. Scoring is per-category.
Questions

Things people ask us.

How much should a cost segregation study actually cost?
For a standard residential rental or STR under $2M, anything over ~$2,000 is mostly paying for delivery model and brand — not for tax-rule access. Every legitimate provider draws on the same IRS depreciation framework (RSMeans cost data, MACRS classification per Rev. Proc. 87-56). Where firms differ is in execution: documentation depth, manual engineering involvement, and turnaround. Your CPA files the same forms either way. Premium pricing genuinely earns its keep on complex commercial ($3M+), mixed-use buildings, and industrial facilities with specialized equipment, where direct engineering judgment changes the answer.
Does the IRS require a site visit?
No. The IRS ATG recommends "detailed engineering" — component-level cost allocation using recognized databases. That does not require a person physically entering your property. For standard residential properties, remote-data-driven approaches using assessor records, satellite imagery, and cost databases can be sufficient. For a manufacturing plant or hospital with specialized equipment, a site visit adds genuine value.
Can I do a study on a property I bought years ago?
Yes. Your CPA files IRS Form 3115 (change of accounting method) and you take all the missed depreciation in the current tax year — no amended returns required. If you bought a rental in 2015 and never did a study, you can claim a decade of missed accelerated depreciation on this year's return in one shot.
Is 100% bonus depreciation still available in 2026?
Yes. The One Big Beautiful Bill Act (signed July 2025) permanently restored 100% bonus depreciation for qualifying property placed in service after January 19, 2025. All your 5-, 7-, and 15-year components can be fully deducted in year one.
What's the difference between a "full engineering" study and an automated report?
Full engineering: human engineers review your property (sometimes on-site, sometimes via video) and classify each component by hand. Automated: same cost databases, same IRS depreciation framework, software does the cataloguing. For standard residential properties, the execution variance between the two tends to be small relative to the price difference. The difference starts mattering for complex commercial where human judgment on edge cases — unusual basis allocations, specialty MEP, mixed-use ratios — can change the deduction outcome.
Is cheapcostseg.com affiliated with any provider?
Yes — disclosure. cheapcostseg.com is operated by the team behind costsegsmart.com, a cost segregation provider included in these rankings. Our perspective is not independent. Treat this as a disclosed market guide created by a market participant, not a neutral publisher. Other firms listed are separate companies and did not pay for placement. Rankings reflect our own research — you should do your own due diligence before choosing a provider.

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