Introduction
When a business owner dies, their estate often includes the one asset with no price tag: a stake in a private company. There's no stock ticker, no daily quote, no easy comparable sale down the street.
Yet the IRS still expects a defensible number on Form 706. Get it wrong, and you risk an audit, penalties, or a beneficiary who inherits the wrong cost basis.
The scale of this issue is larger than most people assume. The IRS estimated 5,266,702 active S-corporation returns for tax year 2022 alone (IRS Publication 5108).
That figure doesn't even count partnerships, LLCs, and C-corporations held privately across the country. Many of those businesses will eventually pass through an estate or a lifetime gift.
This article walks through how fair market value is determined for closely held business interests in an estate tax context, what the IRS actually looks for, and where executors, attorneys, and CPAs tend to run into trouble.
Key Takeaways
- Apply fair market value as of the valuation date to the exact interest transferred.
- Revenue Ruling 59-60 guides the analysis but sets no single formula.
- Weight income, market, and asset approaches to the facts of the business.
- Set control and marketability discounts from actual rights and restrictions, not standard percentages.
- Defend the conclusion with clean records and an independent, qualified appraiser.
What Is Closely Held Business Valuation for Estate Tax?
Closely held business valuation, for estate tax purposes, means determining the fair market value of a private company interest as of a specific date, for reporting on an estate, gift, or trust tax return. There's no public exchange to check, so the number has to come from analysis rather than observation.
Treasury Regulation 26 CFR 20.2031-1(b) defines fair market value as the price a willing buyer would pay a willing seller, with neither party under compulsion and both reasonably informed of relevant facts (eCFR, 20.2031-1). The gift tax regulation uses nearly identical language. Applying that standard to a family manufacturing company or a professional services LLC is where the real work happens.
The appraiser is not valuing "the business" in the abstract. They are valuing the decedent's or donor's specific interest, and that distinction changes the analysis:
- A 100% controlling interest carries different rights than a 20% minority stake in the same company.
- Voting shares typically carry more value per unit than nonvoting shares.
- A general partner interest behaves differently from a limited partner interest in the same entity.
- An LLC membership unit with transfer restrictions may be worth less, per unit, than one freely assignable.
Common Valuation Dates
Three dates show up repeatedly in this work:
- Date of death — the default valuation date for estate tax purposes.
- Date of gift — used for lifetime transfers reported on Form 709.
- Alternate valuation date — an election under IRC Section 2032, generally six months after death, available only if it lowers both the gross estate and the combined estate and generation-skipping transfer tax.
Confirm which date applies with tax counsel before the appraiser starts work. Using the wrong date can unravel an otherwise solid report.
The resulting value also flows downstream. It affects the gross estate reported, the tax calculated, and the income tax basis beneficiaries receive in the inherited interest.
Why Revenue Ruling 59-60 and IRS Guidance Matter
Revenue Ruling 59-60 is the closest thing the IRS has to a rulebook for valuing closely held stock, and it's still cited in current IRS examination guidance. The ruling lists eight factors examiners and appraisers should weigh:
- Nature and history of the business
- Economic outlook and industry condition
- 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 being valued
- Market prices of comparable, actively traded companies
The IRS reproduces these factors in its Business Valuation Guidelines (IRM 4.48.4). Estate-tax examiners apply them when reviewing appraisals.
Here's the part that trips people up: Rev. Rul. 59-60 doesn't hand you a formula. It asks for informed judgment. A report that simply lists the eight factors without showing how each one moved the needle on this particular business hasn't actually applied the ruling. It has only quoted it.
Binding authority and helpful commentary are not the same. The Internal Revenue Code and Treasury Regulations carry legal force. Revenue Ruling 59-60, IRS manuals, NACVA standards, and professional commentary inform the analysis but don't override the Code.
A credible report cites the ruling and then demonstrates, factor by factor, why it led to a specific conclusion for this company.
How the Valuation Process Works
A sound estate tax valuation is coordinated, not isolated. The appraiser typically works alongside the executor, business owner, estate attorney, CPA, and trustee to gather facts, while keeping independent judgment over the conclusion itself.
Step 1 – Define the Assignment
Before any analysis starts, the appraiser needs clarity on:
- The valuation purpose (estate, gift, or related tax reporting)
- The valuation date
- Entity type and the specific ownership interest being valued
- The standard of value and intended users
- Reporting requirements tied to the filing
One mistake shows up constantly: reusing a valuation built for a different purpose. A report built for a sale negotiation, divorce, buy-sell agreement, financial statement audit, or Section 409A compliance check rests on different assumptions and a different standard of value. It should not be repurposed for Form 706 or 709 without a fresh, purpose-built analysis.
Step 2 – Gather and Validate Information
The appraiser requests a stack of documents, including:
- Historical financial statements and tax returns, plus interim results
- Ownership schedules and governing agreements, including buy-sell provisions
- Debt agreements, budgets, and forecasts
- Owner and related-party compensation data
- Customer concentration and nonoperating asset detail
Management interviews fill in the gaps numbers alone can't explain. Why did revenue spike in one year? Is that customer relationship contractual or personal? These conversations validate unusual results and surface risks a spreadsheet won't show.
Step 3 – Analyze the Business and Normalize Financial Results
This step looks at industry conditions, competitive position, management depth, and how dependent the company is on one or two key people. The analysis also flags customer and supplier concentration, intangible assets, and the split between recurring and one-time revenue.
Normalization adjustments come next: strip above-market owner compensation, personal expenses run through the business, related-party rent that doesn't match market rates, and unusual gains or losses. Each adjustment needs evidence behind it, not an assumption that it's standard practice.
Step 4 – Apply Relevant Valuation Approaches
Appraisers typically consider three approaches:
- Income approach: capitalizes earnings or cash flow, or discounts projected cash flows, when projections are supportable and risk can be quantified.
- Market approach: compares the company to guideline public companies, private transactions, or prior sales of the interest, adjusted for size, growth, profitability, industry, and geography.
- Asset approach: values net assets directly; often primary for asset-intensive, holding, investment, or real estate companies, and a check for distressed ones.
A credible report explains why each approach was used, limited, or set aside. The final number should not be a simple average of whatever indications came out. That's a shortcut, not an analysis.
Step 5 – Evaluate Control and Marketability
Two adjustments frequently apply to closely held interests:
- Discount for lack of control: reflects missing rights a controlling owner would have, such as setting compensation or directing a sale.
- Discount for lack of marketability: reflects the lack of a ready market, expected holding period, and limited access to information.
Neither is automatic, and neither should come from a generic percentage range pulled off a chart. NACVA's educational materials reference empirical studies (including the Moroney and Maher restricted-stock data and the Emory pre-IPO studies) as reference points for marketability, not as fixed numbers to plug in (NACVA, Valuation Discounts and Premiums).
Buy-sell agreements add another layer. IRC Section 2703 generally disregards restrictions on sale or price unless the arrangement meets three conditions (26 U.S. Code § 2703):
- Bona fide business arrangement
- Not a device to transfer wealth to family for less than full value
- Terms comparable to an arm's-length deal
A buy-sell price that fails this test won't control the federal tax value, no matter what the agreement says.
Step 6 – Reconcile, Document, and Report
The final step weighs how reliable each indication is, tests the underlying assumptions, and reconciles everything into one conclusion for the specific interest, not the whole enterprise. A complete report documents the assignment scope, valuation date, interest description, standard of value, financial analysis, methods applied, assumptions, discounts, limitations, and sources.
Every judgment call should trace back to a source document. If the IRS asks a follow-up question two years later, the file should answer it.
Example Case Walkthrough
Here's a simplified, illustrative scenario: not a real engagement, and not a source of specific percentages or values.
An estate includes a minority interest in a family-controlled operating company. The work typically moves through these stages:
The executor and estate attorney confirm the date of death, ownership percentage, voting rights attached to the shares, and any governing or buy-sell agreements. They also check for prior transfers of the same stock, since those sales can serve as evidence of value.
The appraiser reviews five years of financial statements, normalizes owner compensation and a few nonrecurring items, and investigates customer concentration and key-person risk. If the company has growth projections, the appraiser tests whether those forecasts are realistic given historical performance.
The appraiser develops indications under the income, market, and asset approaches. Depending on the company's characteristics (for example, an operating business with steady cash flow rather than an asset-holding entity), one approach may carry more weight than the others. The report explains why.
Because this is a minority interest, the appraiser examines the actual rights and restrictions attached to it: Can the holder force a sale? Are distributions discretionary? Is there a market for the shares outside the family? Those specific facts, not a generic rule of thumb, drive any control or marketability adjustment.
The final conclusion goes into a formal report, which the estate's CPA and attorney review before it's attached to Form 706. If the IRS has questions later, the underlying workpapers and source documents support the conclusion.
How Business Valuation Writers Can Help
Business Valuation Writers prepares formal business valuations for estates, trusts, gifting, and other IRS-related purposes for clients across the United States. The firm focuses specifically on situations where a closely held interest needs a defensible, independent number, not a generic template.
Owner and valuator Jack Schroeder holds the Certified Valuation Analyst (CVA) credential through NACVA and the Mergers and Acquisitions Master Intermediary (M&AMI) designation through M&A Source. He's prepared more than 80 business valuations, with direct experience valuing both controlling and minority interests in closely held companies.
What this means for an estate tax engagement:
- Independent analysis built around the specific interest, not a reused report from another purpose
- Clear explanation of methods and assumptions so the executor's attorney and CPA can see how the number was reached
- Attention to IRS reporting needs, including the documentation Form 706 and 709 filings require
- Fast turnaround and transparent pricing scaled to entity complexity and available information
This process helps:
- CPAs and tax firms that need an outside appraiser for a client's filing
- Estate attorneys handling a business interest in a trust
- Executors facing a filing deadline
- Family business owners gifting shares to the next generation
Ready to discuss a valuation need? Before reaching out, have the valuation date, the specific ownership interest, the entity type, and the filing deadline in hand. It speeds up scoping the engagement.
Conclusion
Closely held business valuation for estate tax purposes is fair market value analysis built around the specific company, interest, valuation date, and tax purpose—not a revenue multiple applied in isolation.
Accurate records, appropriately applied methods, evidence-backed adjustments, and transparent reporting all strengthen the credibility of the final number. At Business Valuation Writers, Jack Schroeder's 80-plus completed valuations apply that standard across controlling and minority interests and varied ownership structures.
Loop in a qualified, independent valuator alongside your tax and legal advisors early. Filing deadlines and IRS questions are much easier to handle when the documentation is already in order, not assembled after the fact.
Frequently Asked Questions
How do you value a business for estate tax purposes?
An appraiser determines fair market value as of the valuation date. The work covers the business and the specific ownership interest, applies the income, market, and asset approaches, and documents any control or marketability adjustments.
What is a qualified appraisal for estate tax purposes?
The term "qualified appraisal" is defined specifically for noncash charitable-contribution deductions under IRC Section 170(f)(11). Estate and gift tax filings use related but distinct documentation standards. Confirm current requirements with your tax advisor.
What are the IRS business valuation guidelines?
IRS valuation guidance draws from the Internal Revenue Code, Treasury Regulations, Revenue Ruling 59-60, and IRS examination guidance. Reports are expected to explain the data, methods, assumptions, and reasoning behind the conclusion, not just cite authority.
What documents are needed for a closely held business valuation?
Typically: financial statements, tax returns, ownership and governing agreements, buy-sell provisions, forecasts, debt details, compensation information, and records of related-party transactions or nonoperating assets.
Can valuation discounts apply to a closely held business interest?
Yes. Discounts for lack of control or marketability may apply depending on the specific rights, restrictions, and liquidity involved. They aren't automatic and shouldn't be pulled from a generic percentage range.
