How to Vet a Cost Segregation Provider: 12 Questions to Ask (and the Answers You Want)

The short version

A cost segregation study is a tax position. You will sign a return that relies on it, and if the IRS asks, the study is what you will hand over. That makes choosing a provider closer to choosing an attorney than to buying an appliance: the person, the method and the evidence matter more than the price.

Below are twelve questions, grouped into four themes, each followed by the answer a careful buyer wants. Most take a provider a minute to answer. The pattern of answers tells you nearly everything.

A note on where we stand. Every Caliber Cost Segregation Professional is CCSS-certified by the National Board of Cost Segregation Specialist (NBCSS), and Caliber is an NBCSS member. These questions are the ones we would want to be asked, and the ones we would ask of anyone else.

Who does the work

Question 1. Who will actually prepare my study? You want a named individual, not "our team" or "our engineering department." Ask for the name, and ask whether that person will inspect the evidence for your property personally or supervise someone who does. The IRS Audit Techniques Guide (Pub. 5653, Ch. 4) lists "Preparation by an Individual with Expertise and Experience" as the first element of a quality study. An individual. If nobody can be named, nobody is accountable.

Question 2. Who signs it? You want the preparer, or a credentialed reviewer who has actually reviewed it, to sign the report by name and to be reachable under audit. A report signed by a firm, or by nobody, leaves you alone in the room later. Ask whether the signer will be the one answering an examiner's questions.

Question 3. What credentials does the preparer hold, and how do I verify them? You want credentials that were earned by assessment and that you can check against a public record. Verification is the part most buyers skip. For the CCSS, NBCSS states that membership and certification are separate statuses and that payment, membership approval and course completion never award the credential. Credentials are publicly verifiable, with standing changes shown immediately. The NBCSS directory lists current Professional Members and Organization Members who have opted in, searchable by location, study type, property type, language and coverage. Self-reported statements in listings are labelled as such. Remember the board's own distinction: membership is admission to the organization, and certification is a separate, assessed decision, so look for the certified status in its own right. Whatever credential a provider cites, ask where you can confirm it.

What backs the numbers

Question 4. Where do the quantities come from? This is the question that separates a study from a spreadsheet. You want each reclassified component to carry a quantity with a source: construction drawings, contractor invoices, on-site measurements, or geometry derived from plans and photographs and labelled as such. The answer you do not want is "estimated" with nothing behind it, or a percentage of building cost applied by property type. If a provider's method is to apply a typical reclassification percentage and work backwards into components, you are buying a benchmark, not a study.

Question 5. How does the study reconcile to what I paid? You want the components, plus the building shell, plus any land allocation, to sum to the purchase price or depreciable basis exactly, with the shell shown as its own costed line rather than whatever is left over. Ask how land is handled and what source supports the land value. A study that cannot show you the reconciliation is hiding either an over-allocation or a plug.

Question 6. What authority supports each classification? You want citations on each component or component type: Revenue Procedure 87-56 asset classes, the relevant ATG sections, and case law where a classification is contested. You also want the preparer to name the contested items in your property, such as pool shells, suspended ceilings or dedicated electrical, and explain which way they went and why. An honest study has a few lines the preparer will tell you are judgment calls.

What happens later

Question 7. What happens if the IRS questions the study? You want a clear answer on who responds, at what cost, and with what. The useful answer is that the named preparer, with the evidence chain already in the report, answers the examiner's questions about method and classification while your CPA handles the return. Ask whether audit support is included, offered as an add-on, or not offered. Any of those can be acceptable; silence is not.

Question 8. Can the study support a lookback and Form 3115? If you have owned the property for one or more tax years already, you want the provider to say yes and to explain what they deliver: the catch-up depreciation computation and the schedule your CPA needs to prepare the change in accounting method. A provider who has never heard of Form 3115 is not experienced with acquired property.

Question 9. How does the study handle my state? States do not all follow federal bonus depreciation. You want a provider who knows that, asks where you file, and either addresses conformity in the report or tells you plainly that your CPA will need to adjust. Our state conformity guide summarises the position state by state; use it to check the provider's answer.

The commercial terms

Question 10. Is the price fixed, or is this a proposal? You want a fixed price stated before you commit, and you want to know what it covers. Some firms issue a proposal priced as a percentage of projected savings or requiring a phone consultation before any number appears. There are legitimate reasons for a quote on complex commercial property, but for residential and small commercial work a published price is a sign the provider has a repeatable method. Our studies start at $3,995 and the full schedule is on the pricing page.

Question 11. What is the turnaround, and when does the clock start? You want a stated delivery window and a clear trigger: usually the date you finish providing documents and photographs, not the date you pay. Ask what happens if evidence is missing, because the honest answer is that the study waits for it.

Question 12. How is my data secured? A study involves closing statements, loan documents, floor plans and photographs of your property. You want encrypted upload, named storage practices, access limited to the people working your file, and a clear statement of how long documents are retained. A provider asking you to email a settlement statement as an attachment has not thought about this.

How to read the pattern of answers

No single answer disqualifies a provider. A firm may offer no audit support but produce excellent work; another may have a fixed price and thin evidence. Read the twelve together.

Three patterns are worth naming. First, if questions 1 through 3 produce no names and nothing verifiable, stop there. Everything else depends on an accountable person. Second, if question 4 produces a percentage instead of a source, the study will not stand on its own under examination regardless of how the other answers sound. Third, if the answers to 10 through 12 are vague while the answers to 4 through 6 are strong, you have found a careful practitioner with a weak front office, which is a far better problem to have than the reverse.

If you want to compare providers side by side, the NBCSS lists cost segregation specialists by state so you can see who practises in your area and what they say about their coverage. The board is clear that a listing is not a promise of anything; it is a starting point for exactly these questions.

What to do next

Write the twelve questions down and ask every provider you are considering, including us. Our how it works page answers most of them in advance, from who prepares and signs to how quantities are sourced and reconciled. To see who else is practising in your area and start the same conversation with them, the NBCSS directory is searchable by location and study type.