The Short Answer: $4,000 to $70,000
The cost of a cost segregation study depends almost entirely on who performs it. Traditional engineering firms typically charge $5,000 to $15,000 for a small property and $15,000 to $50,000 or more for larger or complex assets — with the most involved studies running toward $70,000. AI-assisted providers like ClickDrag deliver the same engineering-based methodology for $4,000 to $14,000, often roughly 80% less than a legacy firm, and in days rather than months.
The reason for the spread is not the IRS methodology — that is the same regardless of provider. The reason is labor.
A traditional study is built by engineers and tax specialists doing manual site visits, manual document review and manual component classification. That billable time is what you are paying for. When the heavy lifting is done by AI that reads your construction documents and applies the IRS classification rules directly, the cost of that labor collapses — and the savings pass to you.
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What Actually Drives the Price
Whether you go with a legacy firm or an AI-assisted provider, the same handful of factors move the number up or down:
- Property type and complexity: A single-tenant retail building is simpler to classify than a multi-building apartment complex or a manufacturing facility with heavy process systems. More component categories means more analysis.
- Building size and basis: Larger depreciable basis usually means more line items to review. Many traditional firms price as a percentage of basis or of the tax benefit, which is why large properties get expensive fast.
- Quality of your documentation: If you have AIA pay applications (G702/G703), construction drawings, and a trial balance, the analysis is faster and cheaper. If costs must be reconstructed from estimates, expect more billable hours.
- Methodology required: The IRS Engineering Approach using actual cost data is the gold standard. A residual or estimate-based study is cheaper but rests on weaker support if the IRS reviews it.
- Site visit: Traditional firms often charge travel and on-site engineering time. Document- and photo-driven providers remove that line item entirely.
"The preparation of cost segregation studies requires knowledge of both the construction process and the tax law involving property classifications for depreciation purposes." — IRS Cost Segregation Audit Techniques Guide, Chapter 1
Beware "Free" and Contingency Pricing
Some firms advertise "no cost unless we save you money" or price the study as a percentage of the tax benefit they generate. This sounds attractive, but it creates a clear incentive problem: the more aggressively a component is reclassified into a shorter recovery period, the more the firm earns. The IRS is well aware of this dynamic, and overly aggressive studies are exactly what draw scrutiny. A flat, transparent fee tied to the actual work — not to your tax outcome — keeps the analysis honest and well-documented.
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The ROI: Why the Fee Is Almost Always the Smaller Number
A cost segregation study is one of the few professional services where the return is straightforward to estimate before you commit. The study accelerates depreciation by reclassifying parts of your building from 27.5- or 39-year property into 5-, 7-, and 15-year property. That acceleration produces a large first-year deduction, and the tax saved from that deduction is the return on the fee.
As a rule of thumb, a well-built study on a commercial or residential rental property reclassifies a meaningful share of the building's basis into short-life property. On a property with a depreciable basis in the low millions, the resulting first-year tax savings frequently land in the tens or hundreds of thousands of dollars. Against a study fee of a few thousand dollars, the payback is often realized in the first tax filing — a return measured in multiples, not percentages.
You do not have to take that on faith. You can estimate your own savings with our free cost segregation calculator before spending a dollar, then compare that figure to the study fee. If the math does not work for your property, the calculator will show you.
A Simple Way to Decide
- Estimated first-year tax savings ÷ study fee gives you a rough ROI multiple. If it is well above 1x — and for most income-producing properties it is dramatically higher — the study pays for itself immediately.
- Factor in your time horizon. The benefit is largest for owners who will hold the property long enough to use the deductions, though even shorter holds can benefit when paired with the right exit planning.
When a Cost Segregation Study Is Worth It
A study tends to make clear financial sense when:
- Your building's depreciable basis is roughly $500,000 or more (the threshold where AI-assisted pricing makes even modest properties worthwhile).
- The property is income-producing — commercial, multifamily, self-storage, short-term rental, or other rental real estate.
- You have tax liability to offset, or you can use the deductions against other income within the applicable passive-activity rules.
- You acquired, built, or substantially improved the property recently — though a look-back study can still capture missed depreciation on properties placed in service in prior years without amending old returns.
It tends to be less compelling for small properties with minimal basis, owners about to sell with no exit-tax planning, or entities with no taxable income to shelter now or in the near term.
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What You Should Pay in 2026
If a provider quotes you $40,000 to $70,000, you are paying for legacy labor, not better results. The IRS methodology is identical to what an AI-assisted study applies. With ClickDrag, a documented, engineering-based study runs $4,000 to $14,000, is grounded in your actual construction cost documents, and is delivered in days. Every study is built on the same IRS Cost Segregation Audit Techniques Guide standards a legacy firm would use — just without the legacy price tag.
The most reliable way to know your number is to start the process and let the documents drive the quote. Start your cost segregation study or review the full pricing comparison to see exactly how AI-assisted pricing stacks up against traditional engineering firms.
Frequently Asked Questions
How much does a cost segregation study cost?
A cost segregation study typically costs between $4,000 and $70,000. Traditional engineering firms charge roughly $5,000–$15,000 for smaller properties and $15,000–$70,000 for larger or complex ones. AI-assisted providers like ClickDrag deliver the same engineering-based methodology for $4,000–$14,000, often about 80% less, in days rather than months.
What factors affect the price of a cost segregation study?
The biggest driver is who performs the study, followed by property type and complexity, building size and depreciable basis, the quality of your cost documentation, whether an on-site engineering visit is required, and the methodology used (actual-cost engineering studies carry the strongest support).
Is a cost segregation study worth the cost?
For most income-producing properties with a depreciable basis of roughly $500,000 or more, yes. The accelerated first-year depreciation deduction commonly produces tax savings that exceed the study fee many times over, frequently paying for itself in the first tax filing. You can estimate your own savings with the free calculator before committing.
Why are some cost segregation studies so much cheaper than others?
The IRS methodology is the same across providers — the price difference is labor. Traditional firms bill manual engineer and specialist hours for document review, site visits, and classification. AI-assisted providers automate the document reading and IRS component classification, which removes most of that billable time and passes the savings to the property owner.
Should I avoid contingency or percentage-of-savings pricing?
Be cautious with it. Pricing a study as a percentage of the tax benefit rewards more aggressive reclassification, which can invite IRS scrutiny. A flat, transparent fee tied to the work performed keeps the analysis supportable.
