What's Inside a Cost Segregation Study Sample Report

Why report structure matters more than the final number

The number on the cover of a cost segregation report, the first-year deduction, is only as strong as the documentation behind it. If an IRS examiner questions the study, the report itself is the evidence. A thin report that shows a rounded percentage with no supporting detail invites more scrutiny than one that documents, asset by asset, how each classification was reached. That is the whole reason a real engineered report runs long: length here is documentation, not padding.

Section-by-section anatomy of a 70-page report

What the asset classification section actually looks like

This is the section most owners underestimate. Rather than saying "15% of the building is 5-year property," a real report lists individual components: carpet in the reception area, decorative lighting fixtures, cabinetry in the break room, electrical serving the specialized equipment, each tied to a class and a dollar figure. Land improvements (parking lot paving, site lighting, landscaping) get their own line items in the 15-year bucket. The building's structural shell and its central HVAC stay on the long schedule; those two are commonly assumed to qualify for faster depreciation and they do not, which is exactly the kind of distinction a defensible report has to get right and document clearly.

A worked example: what the report produced on a medical clinic

On a delivered medical clinic study, the building basis was $1,404,500. The asset classification section identified $241,839 in first-year deductions for a $10,000 fee, a 24.2 to 1 ratio. The report's classification detail covered exam room fixtures, flooring throughout patient areas, decorative lighting, and site improvements around the building, each documented individually rather than estimated as a lump percentage. That level of detail is what let the number stand on its own.

Look-back studies carry one extra section

For a property owned for years, the report includes the section 481(a) catch-up computation, the calculation of missed depreciation that gets claimed in the current tax year through Form 3115 (automatic consent), with no amended returns required. That section is what the client's CPA uses directly when filing, which is why it needs to be as documented as the classification detail itself.

A new-purchase study skips this section entirely, since there is no missed depreciation to catch up on. The report is shorter in that one respect, though the asset classification work underneath is identical either way.

What a thin report looks like by comparison

A software-only estimate typically produces a document a few pages long: a property summary, an assumed percentage of basis reclassified, and a resulting deduction figure. What it usually lacks is the cost documentation section and the asset-by-asset detail, the parts of a real report that let an examiner trace a specific dollar figure back to a specific component and a specific pricing source. That gap does not necessarily mean the estimate is wrong. It means there is less behind it if anyone asks how the number was reached.

For a small residential property, a lighter report tier can still be entirely defensible if it retains the asset-level detail and cost documentation, just at a scope matched to a smaller building. The distinction that matters is not page count alone; it is whether the classification and cost data are actually present, not whether the report happens to run 70 pages or 40.

How an examiner actually works through the report

An IRS examiner reviewing a cost segregation study typically starts at the executive summary, then moves to methodology to confirm the process followed a recognized approach, then spot-checks specific line items in the asset classification section against the cost documentation. That spot-check is the moment the report either holds up or does not. A report built with that review process in mind documents each classification with enough specificity, an exact component, a construction cost source, a depreciation class, that a spot-check confirms rather than raises new questions.

Requesting a sample

A sample pull of a real report, with identifying details removed, is available as part of the estimate process. The 60-second qualifier at /qualify is the starting point; from there, a real report on a comparable property can be shared so you can see the depth described above before deciding whether to run your own study. See also the questions worth asking any firm about what its own report includes.

Comparing a sample against a firm's own actual output, rather than a marketing description of what the firm claims to deliver, is the more reliable way to judge report quality before committing to a study.

Frequently asked questions

How long is a typical cost segregation study report?

A real engineered report runs about 70 pages, covering methodology, property description, asset-by-asset classification, cost documentation, and the resulting depreciation schedule. Length reflects documentation depth, not padding.

What's the difference between a sample report and my actual study?

A sample report shows the structure and depth of a real delivered study, usually with identifying details removed. Your actual study reflects your specific property's components, basis, and classification, which will differ from any sample.

Does the report include the section 481(a) computation?

For a look-back study on a property owned for years, yes. That computation calculates the missed depreciation now claimed in the current year through Form 3115, and it feeds directly into the CPA's filing.

Why does the report classify assets individually instead of by percentage?

Individual classification lets an IRS examiner trace any specific line item back to its supporting rationale and cost data. A rounded percentage with no underlying detail is much easier to challenge than a documented, asset-by-asset breakdown.

Can I see a sample report before committing to a study?

Yes. A sample pull is available through the estimate process at /qualify, showing the structure and depth of a real delivered report on a comparable property before you decide whether to move forward.