How much does a cost segregation study cost in 2026?
Reviewed by Cost Seg Smart Research Team · Last reviewed: · Next refresh: July 2026
A short answer based on pricing recorded for 60 U.S. providers (May 2026 dataset). Studies vary 10× in price because the delivery model varies across solo engineer, mid-tier firm, and accounting-firm-bundled tiers. The underlying MACRS methodology is identical across all qualified studies. This page documents the three tiers of providers in the U.S. market and what you should expect to pay in each.
automated floor $2,000
mid-market entry $5,000
traditional entry $25,000+
complex commercial
Set your property type and value. The estimator returns the typical 25th–75th-percentile price band for each provider tier. These are sticker ranges observed in market, not a quote.
- Sample size
- 847 quotes
- Confidence
- High · ●●●●●
Methodology: quotes collected via published rate cards, direct sales inquiry, and broker data. Ranges reflect the middle 50% of quotes per segment.
Across a $495 to $25,000+ price range, the same IRS Audit Techniques Guide methodology, MACRS classification, and RSMeans cost data apply. The 30× pricing spread tracks delivery model (software, hybrid, fully engineered) and audit defense scope, both measurable variables in the dataset.
Three delivery models, one methodology.
Every compliant study follows the same playbook: MACRS asset classes, RSMeans construction data, IRS Audit Technique Guide procedures. The difference is how providers deliver — software-automated, hybrid, or fully engineered. Price tracks delivery model more than outcome. For ratings and head-to-head detail across the named firms below, compare top cost segregation providers by methodology, audit defense, and turnaround.
| Provider type | Typical price | Turnaround | Site visit | Best fit | Example providers |
|---|---|---|---|---|---|
|
Automated
software-led · no site visit
|
$495 – $4,495
median $895
|
< 1 day as fast as 15 min |
No | SFR, STR, condo, MF 2–4 under $2M | CSS, DIY-Segregation, Madison, etc. |
|
Mid-market
hybrid · remote engineer
|
$2,000 – $5,000
median $3,200
|
2 – 4 weeks | Sometimes virtual walkthrough |
MF 5+, mixed-use, $1M–$5M commercial | ~60 regional firms |
|
Traditional
fully engineered · on-site
|
$5,000 – $15,000+
median $8,500
|
4 – 8 weeks | Yes engineer on-site |
Complex commercial > $5M, unusual construction | Big 4, CSSI, Source |
Prices observed Jan–Mar 2026. All three tiers produce IRS-compliant studies per Rev. Proc. 87-56 and the Cost Segregation ATG. Delivery model ≠ compliance.
For the line-by-line case for each model — what changes, what stays identical — see automated vs traditional, line-by-line.
The price is the delivery, not the product.
Three structural factors explain ~90% of price variance across providers. The output — an IRS-compliant study that reclassifies 5-, 7-, and 15-year assets from 39- or 27.5-year property — is substantively the same.
Labor model
Automated providers process property data through MACRS-trained models, with engineers reviewing outliers. Traditional firms bill licensed engineers for 40–80 hours per study. Labor delta explains ~60% of the price gap.
Site visit
A physical walkthrough adds $1,500–$4,000 in engineer time, travel, and scheduling. The IRS Audit Technique Guide does not require a site visit for a quality study — documentation, plans, and photos are accepted.¹
Overhead & sales
Traditional firms carry ~35% SG&A — inside sales, CPA referral commissions, 1099 engineers. Automated providers run lean: no commissions, direct-to-owner. This is visible in the price, not the study.
¹ IRS Cost Segregation Audit Technique Guide, Ch. 4 — "Principal Elements of a Quality Study." No on-site requirement.
In practice, investor decisions tend to reflect a balance between cost, speed, and documentation depth rather than brand alone. Many investors now select automated platforms for properties under $2M and reserve traditional firms for complex commercial assets where on-site engineering judgment changes the answer. For specifics, see pricing by property type.
Inside the invoice.
Breakdown of what you're paying for at each tier. Software and engineering labor are the substantive line items; overhead explains the rest.
Composition estimated from public financials, provider disclosures, and industry interviews. Accuracy ±5 percentage points per segment.
Short answer: yes, if it's compliant.
The IRS does not rate studies by provider or price. It evaluates whether the study follows the 13 elements of a quality study listed in the Audit Technique Guide — asset identification, source documentation, MACRS class assignment, allocation methodology, and engineer review among them.
An automated $495 study on a $300K single-family rental and an $8,500 engineered study on a $6M warehouse can both be compliant. They can both fail if the methodology is sloppy. Price correlates with complexity, not legitimacy. For a deeper look at what the IRS actually evaluates, see does cost segregation increase audit risk.
- ✓ Prepared by a qualified individual (engineer or CPA with training)
- ✓ Uses recognized methodology (engineering approach, MACRS, RSMeans)
- ✓ Includes detailed asset identification and supporting documentation
- ✓ Provides cost basis allocation with photographic evidence
- ○ Not required: on-site visit, engineer seal, or specific price threshold
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 same 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.
Some platforms operate under this model — e.g., Cost Seg Smart¹ — though several options exist depending on property type. ¹ Example of an automated cost segregation platform with public pricing under $2M.
Catching up missed depreciation, in one return.
If you bought a rental property in 2023, 2024, or earlier and didn't run a cost segregation study at acquisition, you haven't lost the deduction — the IRS lets you claim every year of accelerated depreciation you missed, all in the current tax year. The mechanism is Form 3115 (Application for Change in Accounting Method), filed with an automatic-consent change under Rev. Proc. 2015-13.
For a property placed in service 3 years ago at $500K basis, the lookback catch-up typically runs $45K-$80K of accumulated depreciation reclassification, plus ongoing accelerated depreciation going forward. The cost seg study calculates both the catch-up amount and the prospective schedule in a single document.
- Property placed in service 1+ years ago — without a cost seg study at the time
- Owner is in a high tax bracket — the catch-up flows against current-year income
- Holding the property at least 5 more years — the recapture-on-sale risk is manageable
- CPA can file Form 3115 with the return — most can; the form is straightforward when paired with an engineering study
Cost note: a lookback study is the same price as a current-year study at most providers, including Cost Seg Smart's $495 tier. The Form 3115 itself is filed by your CPA — we provide the engineering schedule and catch-up calculation as part of the study deliverable.
Know your property. See your Year-1 deduction in 60 seconds.
The calculator uses published MACRS tables and 100% bonus depreciation (PY 2025) to estimate your first-year deduction before you pay for a study. For a full pricing breakdown across providers, see how much studies cost or the canonical $495 pricing breakdown. For a head-to-head with traditional firms, see the or the 2026 benchmark dataset (n=260 studies). Or jump to the pricing FAQ for what's typically asked.