Minority Interest in an S Corporation Distributor with Related-Party Lease and Customer Concentration
Subject: 30% noncontrolling interest in Riverton Color & Chemical, Inc., a Subchapter S specialty-chemical distributor. The engagement is for gift-tax reporting as of December 31, 2024. Revenue has grown from $18.2 million to $21.5 million over three years, but one customer provided 31% of 2024 revenue under a contract that expires in 14 months. EBITDA was $2.05 million, $2.31 million and $2.42 million; the owner's total compensation was $610,000 versus market compensation of $340,000 for a general manager. The company leases its warehouse from the owner's LLC at $210,000 per year; market rent is $360,000. Net working capital is $1.4 million versus a normalized requirement of $1.1 million. The company owns no real property. Management projects 4% growth, but the industry is mature. The shareholder agreement contains no put rights or transfer restrictions beyond a right of first refusal.
1. Normalize 2024 EBITDA. Address each adjustment, including the related-party lease and the excess working capital, and explain how customer concentration should be treated.
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Start with reported 2024 EBITDA of $2,420,000. Add back $270,000 of excess owner compensation ($610,000 paid less $340,000 market). The below-market warehouse lease benefits the company: market rent exceeds contract rent by $150,000, so normalize by deducting $150,000 from EBITDA, or alternatively add the leasehold benefit as a separate intangible asset and use market rent in the income statement. Do not adjust EBITDA for the $300,000 of excess working capital; that is a balance-sheet item affecting equity value, not operating earnings. Normalized EBITDA is therefore $2,540,000. Customer concentration is not a mechanical dollar adjustment. It belongs in the company-specific risk premium, or in a probability-weighted or scenario-based earnings estimate if there is evidence the customer will leave. A direct deduction requires support, such as a lost-contract scenario with quantified cost savings.
2. Develop and support a discount rate and the minority-interest discounts. Explain the S-corporation tax-affecting choice and how to avoid double counting.
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Use a build-up or modified CAPM with a consistent tax assumption. Illustratively: risk-free 4.3%, equity risk premium 5.5%, size premium 4.0%, industry risk 1.0%, and company-specific risk 2.5% for customer concentration, key-person dependence and the related-party lease, giving 17.3% cost of equity. For an S corporation, either tax-affect earnings at 21% and use a C-corporation-derived rate, or use an S-corporation rate without tax-affecting; the key is consistency. Do not tax-affect earnings and then also apply a pre-tax discount rate. A 30% noncontrolling interest receives no control premium. Apply a discount for lack of marketability, commonly 15-25% for a private company with only a right of first refusal, and document the evidence. A separate lack-of-control discount is generally not applied on top of a minority interest unless the interest lacks ordinary minority protections, and company-specific risk should not be counted again inside the DLOM.
3. The client supplies a broker letter opining $4.2 million for the 30% interest based on 0.65x revenue. Identify the errors in that approach and explain what a reviewer should require.
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A revenue multiple ignores profitability, working capital, debt, customer concentration and the related-party lease. Two companies with identical revenue can have very different EBITDA and risk. Applying 0.65x to $21.5 million gives about $14.0 million enterprise value, or $4.2 million for 30%, before any minority or marketability discount. That result is inconsistent with normalized EBITDA of $2.54 million and a capitalization rate in the high teens: at a 17.3% cap rate, enterprise value is roughly $14.7 million only if no growth and no tax adjustment are assumed, and the 30% interest would still require lack-of-marketability and possibly lack-of-control discounts. The broker also fails to deduct debt or adjust for excess working capital. A reviewer should require a normalized earnings-based valuation, a supported discount rate, reconciliation of the enterprise value to equity value, and explicit support for any discounts.