Business valuation services: hiring an appraiser whose number holds up under IRS review
The IRS publishes the manual its own appraisers use to pick apart a third-party valuation, and, in our reading, it doubles as a hiring guide for owners buying business valuation services.
An owner who needs a formal valuation for a gift, a buyout, a divorce or an employee stock ownership plan is not really buying a number. In our reading, the real purchase is a document that has to survive close scrutiny, whether from an IRS examiner trained in reviewing and critiquing a third-party valuation or from the lawyer across the table. The desk's view is that the most useful guide to hiring for that job is not a firm's marketing deck. It is the IRS Business Valuation Guidelines, the internal manual that tells agency appraisers how to build their own valuations and how to review the ones taxpayers hand them. Our thesis is simple: choose your appraiser against that checklist, and treat the credential on the letterhead as where your vetting begins, not where it ends.
What the reviewer is trained to test
The current version of the manual took effect on September 22, 2020, replacing guidance dated July 01, 2006. Its stated audience includes every IRS employee who provides valuation services or reviews valuations and appraisals prepared by others. That second group is the one an owner should picture when commissioning a report.
The review instructions are specific. An IRS appraiser reviewing an outside valuation is told to check whether the report is complete, whether the data is adequate and relevant, whether adjustments to that data were proper, and whether the methods chosen were appropriate, then to develop the reasons for any disagreement. Where the reviewer disputes the facts, assumptions, method or conclusion, the manual calls for more fact-finding and analysis aimed at reaching what it calls "a credible value conclusion".
One line deserves an owner's attention. The agency's appraiser is directed to weigh, under IRM 20.1.12.7, whether penalties apply because of incorrect appraisals. In our reading, that changes the cost of a thin report. A weak valuation does not simply lose the argument over value; it can invite a separate conversation about penalties. That is the strongest argument we can see for paying for rigor up front.
The checklist your appraiser should already know
Before any analysis, the manual asks its appraisers to define the assignment by pinning down the property and the interest being valued, the effective date, the purpose and intended use, the standard and definition of value, the assumptions and limiting conditions, and any restrictions, agreements and other factors that may influence value. For a buyout, the desk would put particular weight on that last item, since, in our reading, agreements among owners are exactly the kind of restriction the manual flags.
The analysis itself covers a long list: the history and nature of the business, the general economic and industry outlook, book value and financial condition, earning capacity, dividend-paying capacity, goodwill and other intangible value, prior sales of the stock and the size of the block, and the prices of comparable companies whose shares trade freely, according to the IRS guidelines. The manual names three generally accepted approaches, asset-based, market and income, and says consideration should be given to all three before professional judgment narrows the choice.
It also expects historical financial statements to be adjusted where needed, discount or capitalization rates to be matched to the benefit stream selected, and those rates to reflect the business, its industry, its risk and the stability or irregularity of earnings. Finally, where appropriate and if not already reflected elsewhere, the appraiser should separately consider lack of marketability, the degree of control the interest carries, and, consistent with the standard of value, any strategic or synergistic value.
That suggests a practical interview test. Ask a candidate to walk you through how a prior report handled each of those items, and in particular how it supported the discounts for marketability and control. An appraiser who answers fluently is describing the same framework the reviewer will apply. One who waves the list away is telling you something too.
What the credentials signal
Two of the professional bodies an owner is likely to encounter describe their work in their own materials. The American Society of Appraisers runs a business valuation discipline whose members, in its words, "provide independent opinions of value for business concerns," and lists intangible asset valuation, merger and acquisition studies and employee stock ownership plan feasibility analyses among their work. The society also maintains a separate appraisal review and management discipline, describing review as an exercise that measures an appraisal against established standards and logic, performed by someone able to deliver "credible assignment results".
The National Association of Certified Valuators and Analysts says it trains and certifies professionals whose clients need business valuations, litigation support and damages calculations. NACVA states that its CVA and MAFF designations are "the only valuation and financial forensic credentials accredited by the NCCA," and that the CVA also carries ANSI accreditation. The association reports over 7,000 members and certificants and offers an online directory, and it pitches the credential as a way to "demonstrate competency to the courts".
In our reading, the emphasis differs in ways that map onto the owner's trigger. ASA's description foregrounds transactions and ESOP work, while NACVA's foregrounds litigation and courtroom credibility, which would matter more in a divorce or a contested buyout. We limit this comparison to the two bodies whose materials we reviewed. Either way, a designation tells you what the person was trained and tested on. It does not tell you whether the particular report on your desk will hold up. That depends on the work.
Independence is part of the product
The IRS manual requires its own appraisers to reach conclusions "free from bias, advocacy, and conflicts of interest", and it asks each written report to carry a signed certification. The model statement covers no present or prospective interest in the property, no bias toward the parties, compensation that is not contingent on the conclusions, an engagement that was not contingent on predetermined results, and disclosure of any services performed on the same property within the three-year period before the assignment. It also affirms that no one provided significant assistance to the person signing it.
The manual applies that certification to IRS appraisers, not to outside firms, and it allows the wording to be amended where professional designation or state license rules apply. Still, the desk reads it as a clear signal of what the agency's reviewers consider normal. An owner can ask any candidate whether they will sign something similar. A fee tied to the outcome, or a prior advisory role for the same company that goes undisclosed, would sit poorly against that standard, and the other side's lawyer would likely find it.
Cost, timing and when a short report falls short
None of the sources we reviewed publish fee ranges or engagement timelines, so we will not supply figures. What the IRS manual does offer is a principle: its appraisers keep an activity record, and that record together with the workpapers should show that time spent is commensurate with work performed. The desk would ask any outside firm for the same discipline, meaning a fee estimate tied explicitly to the scope items above, so you can see what is included and what has been trimmed.
On timing, the manual says the aim, where possible, is to settle valuation disputes early in an examination, working with the taxpayer to close outstanding questions. In our reading, that rewards owners whose appraiser can produce supporting material quickly. The manual expects workpapers to record the steps taken and techniques used and to hold the evidence behind the facts and conclusions in the final report. Ask whether your appraiser keeps files at that standard and how fast they can be produced.
The manual concedes that the extent and content of a report depends on the needs of each customer, which leaves room for lighter deliverables. But it also sets the primary objective of an appraisal report as providing "convincing and compelling support for the conclusions reached", with enough information to show clearly how those conclusions were reached. Because completeness is one of the tests the reviewer applies, the desk's reading is that a shorter, limited-scope calculation may serve internal planning, but a document headed to the IRS or into litigation calls for the full report.
What to do before you sign
Start by writing down the purpose, the interest being valued and the effective date, because the IRS guidelines treat those as the definition of the assignment. Then shortlist candidates through the professional bodies, using the NACVA directory or the ASA business valuation discipline as a starting point, and match the emphasis to your trigger: transaction and ESOP work on one side, litigation readiness on the other.
In the interview, ask for a redacted prior report and walk through the IRS analysis factors and the treatment of marketability and control. Ask whether the firm will sign an independence certification resembling the IRS model, disclose any past work for your company, and confirm that its fee is not contingent on the result. Request a fee estimate tied to scope and a commitment on how quickly workpapers can be produced if a reviewer asks. And if the valuation will be filed with the IRS or tested by opposing counsel, budget for a full report rather than a calculation. The reviewer will ask whether your report is complete, and you want to know the answer before they do.