How much does a cost segregation study cost? 2026 price guide by property type and size

Prices as of October 28, 2026 · Last updated October 28, 2026

This page is for general educational purposes and is not tax, legal or accounting advice. Fees shown are published by providers or market sources on the dates shown. They are not quotes or guarantees, and your fee may differ. Whether a study benefits you depends on your property, your tax situation, passive activity and other limits, how long you hold the property and the tax law in effect. CostSegTrust does not perform cost segregation studies. Consult your CPA, tax advisor or attorney before acting.

The short answer

Prices as of 2026-10-28: Published cost segregation study fees in 2026 run from about $495 for software-generated residential reports to $15,000 or more for traditional engineering firms. Engineer-reviewed residential studies commonly list at $2,000 to $4,500, and commercial studies at about $5,000 and up. Property type, size, inspection method and scope explain most of the gap.

• A cheaper study is not automatically worse, and a costlier one is not automatically better. Compare what each fee includes.
• Fees often leave out Form 3115 work, return implementation and audit representation. Ask for an itemized written scope.
• Whether a fee pays off depends on whether you can use the deduction, how long you hold the property and what happens at sale. Ask your CPA.

A cost segregation study is a report that sorts a building's parts into depreciation categories. That is all it does. This guide covers what providers say they charge, and why two quotes for the same building can look so different.

One property, three quotes: what the spread looks like

Published price lists show what providers advertise. They do not show what happens when several providers price the same building.

Here is one example from CostSegTrust's own published article, how three providers quoted the same property. It is one anonymized engagement, three quotes. It shows the spread in that one case only.

In the published example, the $9,500 quote also lists a site fee. It illustrates a spread. It is not an average or a typical price.

The highest quote was more than double the lowest. The property was the same. What differed was the scope, the method and the extras in each proposal. That is why the first step in comparing quotes is to line up what each one covers. We make no claim that any one of these quotes was better or worse than the others.

Want fees for your own property? Get side-by-side quotes.

Cost by property type and size

The right number for you depends on what you own and how big it is. Below, the table shows one provider's published ranges by property type next to a second market source.

Cost by property type

Single-family, condo and short-term rental (1 unit). Entry prices are the lowest here. One provider publishes $495 to $7,995, depending on purchase price. Another source puts these at “a few hundred dollars to about $3,500.”

Duplex to fourplex and small multifamily. One provider publishes $995 to $8,495 depending on purchase price. We found no second published range.

Apartment buildings (5+ units). One provider publishes $1,995 to $10,495. Another source puts multifamily at “$5,000 to $10,000 or more.”

Office, retail, industrial and specialty commercial. Published ranges are wider and start higher, and they run higher still for hotels and medical or restaurant space. See the table.

Table 1. Fee by property type, all as of 2026-10-28. Column 2 comes from a single provider's published price list. Column 3 is the other source we could find, and “not published” means we found no published range. Ranges depend on each provider's scope and are not comparable line by line.

Does the fee follow square footage or purchase price?

Both models exist. AE Tax Advisors publishes a per-square-foot rate of $1 per sq ft with a $2,000 minimum (Oct 6, 2026), and states this is not an industry average. Cost Seg Smart publishes price bands based on purchase price; for a single-family home, short-term rental or condo they run from $495 under $300K to $3,995 for $4M to $6M (read 2026-10-28). These are two examples of how providers set fees. They are not averages, and neither is a “typical” price.

What drives the fee

Providers describe the same handful of factors.

• Property type and complexity. A simple rental house is less work than a hotel or a medical building, and published fees reflect that.
• Size and basis. Larger or costlier buildings generally list at higher fees, either by square foot or by price band (see above).
• Inspection method. A study can be software-based, done virtually, or include an on-site visit. The IRS audit guide, Pub 5653, says “a quality study includes a site visit.” The same guide also says the IRS “has not established any requirements or standards for the preparation of cost segregation studies.” Both statements are in the guide, so read them together.
• Records and renovations. Clean construction records and a clear list of improvements can reduce work. Missing records can add to it.
• Look-back work. For a property placed in service in earlier years, a provider may quote Form 3115 and a Section 481(a) computation. Ask who prepares them and whether they are in the fee.
• Audit support. Some fees cover a written response to IRS questions. Others cover representation. The scopes differ, so ask.

What is and is not included in the fee

Two quotes with the same headline number can cover different work. Ask each provider to mark these items as included, extra, or not offered.

Table 2. A checklist, not a price list. “Often” describes common practice and varies by provider. No provider is singled out.

Does a higher fee mean a better study?

Not by itself. The IRS audit guide lists 13 principal elements of a quality study, and a fee level is not one of them. It says there are no prescribed qualifications for preparers, and that a study by a construction engineer is generally more reliable than one by someone with no engineering or construction background.

The same guide tells examiners to determine how a provider's fee is set, whether by size or as a contingency, and to look closely at contingency-fee arrangements. It refers readers to Circular 230. We describe this here without drawing a conclusion about any provider.

A word on very low-priced and do-it-yourself studies. A software-generated report, including the $495 kind, can be a reasonable starting point, but it leaves more room for costly mistakes. The IRS audit guide says a quality study includes a site visit and that a study by a construction engineer is generally more reliable, so a report prepared without those may be harder to defend if the IRS asks questions. Errors in the asset breakdown, the land allocation or the property type can lead to deductions that are reduced or disallowed, plus possible interest and penalties. Before you rely on a low-priced study, ask whether anyone visited the property, who reviewed the report, and whether the provider will support it in an audit.

So a low quote and a high quote both need a reason. Ask each provider what the fee includes, who prepares and reviews the report, and how the property will be inspected.

Is it worth it? Questions to ask first

A fee is only half of the picture. A deduction is not cash. Ask these questions before you pay:

• What is the depreciable basis of the property?
• Can you actually use the loss, given passive activity rules, short-term rental rules or real estate professional status?
• How long will you hold the property, and what happens when you sell?
• Does your state follow the federal treatment?
• What is the all-in cost, including Form 3115 and implementation?

It may not be worth it when the loss cannot be used, the hold period is short, or the all-in cost is large compared with the benefit. Your CPA can tell you which of these applies.

To see how the numbers could look for your property, run your own estimate in the calculator.

How to compare cost segregation quotes

1. Give every provider the same property data. Same price, purchase date, address and improvements.
2. Compare the same scope. Use Table 2 as your checklist.
3. Ask who prepares and who reviews. Get names and credentials in writing.
4. Ask how the property will be inspected. Software, virtual or on-site.
5. Ask what audit support covers. A written response and representation are different.
6. Add up the total cost. Include Form 3115, Section 481(a) work and implementation.

For a real example, see how three providers quoted the same property.

Cost segregation cost FAQ

How much does a cost segregation study cost?

Published 2026 fees run from about $495 for software-generated residential reports to $15,000 or more for traditional engineering firms. Engineer-reviewed residential studies commonly list at $2,000 to $4,500, and commercial studies at about $5,000 and up (as of 2026-10-28).

Is a $495 cost segregation study legitimate?

Price alone does not tell you. The IRS audit guide says it has set no standards for preparing studies, and it lists elements of a quality study, such as documented methodology and an expert preparer. Ask who prepares and reviews the report, how the property is inspected, and what audit support covers.

Does a more expensive study mean a better one?

Not by itself. The IRS audit guide lists 13 elements of a quality study, and none is a fee level. A higher fee can reflect an on-site inspection, a complex building or extra services. A quote well above others should come with a reason specific to your property.

What is included in a cost segregation study fee?

Usually a report that classifies building components into recovery periods and depreciation schedules. Many quotes leave out extras such as Form 3115 and Section 481(a) work, return implementation, in-person inspection and audit representation. Ask for an itemized written scope.

Who pays, and how is the fee treated for tax?

The property owner pays the provider. How the fee is treated for tax depends on your facts, so this page does not say. Ask your CPA how it applies to your property.

Get side-by-side quotes for your property

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You can also run an estimate in the calculator.

Sources, method and last updated

How we collected these figures: we read each provider or market page listed below and copied the range it published, with the date shown on that page. We did not calculate averages or fill gaps. Where we found no published range, the table says “not published.” Prices change, so re-check before you rely on any figure.

• Taxstra, residential and commercial fee ranges (updated August 28, 2026; price tiers checked August 2026)
• Cost Seg Smart, price list and blog (updated October 17, 2026)
• R.E. Cost Seg, pricing tiers (page dated October 20, 2025)
• AE Tax Advisors, per-square-foot pricing (updated October 6, 2026)
• Whetzel & Co., fee ranges (October 26, 2026)
• IRS Pub 5653, Cost Segregation Audit Technique Guide. The guide states it “is not an official pronouncement of the law or the position of the Service.” We describe what it says, and nothing here means the IRS has approved a provider or method.
• CostSegTrust, how three providers quoted the same property

Change log: 2026-10-28, first published.