Business Valuation

Estate and Gift Tax Valuation Discounts

DLOM and DLOC discounts can reduce the taxable value of a transferred business interest by 30–50%. Here's how they work and what survives IRS scrutiny.

By Harry Prabandham3 min · 5 slidesUpdated July 26, 2026

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Why Discounts Matter for Estate & Gift Tax

The federal estate and gift tax exclusion is generous (adjusted annually), but the rate above the exclusion is 40%.
Transferring business interests to children, trusts, or family-limited partnerships at fair market value with appropriate discounts can shift significant value out of the taxable estate.
A combined 30–40% discount on a $5M minority interest reduces the taxable transfer by $1.5–2M, saving $600K+ in tax.
But discounts must be defensible: the IRS aggressively challenges aggressive discounts, and the Tax Court has reduced or rejected many.

Lack of Marketability Discount (DLOM)

Reflects that private company shares can't be quickly converted to cash; there's no liquid market.
Typical range: 15–35% for private companies, depending on profitability, dividend policy, expected holding period, and restrictions on transfer.
Empirical support: pre-IPO studies (Mandelbaum factors), restricted stock studies, and option-pricing models.
Higher for closely-held businesses with restrictive shareholder agreements; lower for businesses with active buyer pools or imminent liquidity events.

Lack of Control Discount (DLOC) / Minority Discount

Reflects that a minority owner can't unilaterally direct the company and can't force a sale, dividends, hiring, or strategy.
Typical range: 15–25%, derived from the inverse of control premiums observed in public-company acquisitions.
DLOC applies to minority interests being valued; doesn't apply to controlling interests.
Combined with DLOM, the two discounts compound (multiply, not add): a 25% DLOC + 30% DLOM = 47.5% combined discount.

What the IRS and Tax Court Look For

Qualified appraiser: credentialed (ASA, CVA, or ABV) and independent. DIY valuations are nearly always rejected.
Documented methodology: every discount supported by empirical data and case-specific analysis, not just rules of thumb.
Adequate disclosure on Form 709 (gift tax return): using the 'adequate disclosure' rules starts the 3-year statute of limitations.
Real economic substance: courts have rejected discounts where the family-limited partnership had no real business purpose other than tax reduction.
Consistency: discounts claimed for gift tax must be defensible if challenged later for estate tax.

Common Pitfalls

Claiming discounts on revocable trust transfers or transfers between spouses: neither typically supports discounts.
Using overly aggressive discount percentages (50%+ combined) without strong supporting analysis invites audit.
Failing to update valuations as the business changes; old appraisals don't survive scrutiny.
Treating valuation as a one-time event: succession planning needs periodic re-valuation as values shift.
Anti-clustering rules and Chapter 14 (Section 2701–2704) impose specific requirements on family transfers, so coordination with estate counsel is essential.
Need an estate or gift valuation? Rubric Financial works with estate planning attorneys to deliver valuations that hold up.

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Educational content, not tax, legal, or accounting advice. Confirm with a CPA before acting.

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