What a Cost Segregation Report Should Contain

The report is the thing you pay for and the thing your return will rely on. Reading a sample before you hire a provider is one of the most useful steps you can take. Here is a list of elements that commonly appear in a well-prepared report.

Identification and scope

The report should identify the property, the owner, the placed-in-service date, the total cost basis studied, and the purpose of the study. It should state which buildings and which cost items are covered. If something is excluded, the report should say so.

Preparer qualifications

Look for a description of who performed the work and their qualifications and experience. If engineers or construction professionals were involved, the report should say what they did.

Methodology

A good report explains how the study was done: how information was gathered, whether there was a site visit, what documents were reviewed, how components were identified, and how costs were determined. The IRS audit techniques guidance has emphasized the importance of documenting methodology. See The IRS Audit Techniques Guide in Plain Terms.

Cost sources

For each cost figure, the reader should be able to tell whether it came from actual invoices, a published cost reference, or a proportional allocation. Look for a reconciliation showing that allocated costs equal the cost basis and that land was properly excluded.

Classification reasoning

The report should identify the legal basis or reasoning for classifying components in the 5, 7, or 15 year categories versus the structure. It does not need to be a legal treatise, but it should not be a bare list either.

Asset schedule

The core deliverable is a schedule listing assets, their costs, their recovery periods, and the depreciation method and convention. Your preparer will use it to compute depreciation. It should be organized so future dispositions can be tracked. See Form 4562 and Reporting Basics After a Study.

Photographs and supporting exhibits

Photographs, drawings, and lists of items support the classification. They help a reader who was not on site understand what was found.

Treatment of indirect costs

The report should explain how design fees, permits, contractor overhead, and similar costs were allocated. Unexplained treatment invites questions.

Limitations and assumptions

Every study rests on assumptions. A report should state them. Look for statements about what the provider relied on and what it did not verify.

What a report is not

A report is not a legal opinion, and it does not guarantee acceptance of a return position. It is evidence. See Audit Defense and Documentation for Cost Segregation.

A short review checklist

1. Is the property and basis clearly identified?
2. Are qualifications and methodology described?
3. Are cost sources disclosed?
4. Is the classification reasoning explained?
5. Does the asset schedule reconcile to the total?
6. Are photographs and exhibits included?
7. Are assumptions and limitations stated?

If several answers are no, ask the provider to explain or improve the report before you accept it.

Involving your preparer

Send a sample or the draft to your tax preparer early. They will spot practical issues, such as the level of detail needed to prepare the return and track dispositions.

Reading a sample with a critical eye

When you review a sample, choose three items and trace them. Pick an item classified as personal property and ask what supports the classification. Pick an item with a cost and ask where the cost came from. Pick a land improvement and ask how it was distinguished from land. If the report answers each question clearly, it is probably well built. If you cannot follow the trail, ask the provider how they would answer the question if it came from a reviewer.

Length is not quality

A long report is not necessarily better. Some reports are padded with generic text. Look for property-specific content: photographs, drawings, a list of components particular to your building, and cost derivations tied to your numbers. Generic boilerplate that could describe any building is not evidence about yours.

Getting the report in usable form

Ask for the asset schedule in a format your preparer can import, and for the narrative in a document you can store. Ask whether the provider will answer your preparer's questions without extra charge. Small matters like these can save money and time later.

Questions to ask about disclosures

Ask whether the report discloses any limits on the provider's inspection, for example areas not accessed or items assumed. Ask whether it says how costs for items that could not be observed were estimated. Ask whether it describes conflicts of interest or fee arrangements. A candid report that discloses limitations is generally more credible than one that presents everything as certain.

Retention

Keep the report, the supporting documents, and correspondence with the return files. Retention periods depend on the return and the assets involved, and depreciation records should generally be kept long after the property is sold, so ask your preparer. See How to Vet a Cost Segregation Provider for choosing who prepares it.