The buyer is asking us to carry a seller note for twenty percent of the enterprise value but is refusing to pay interest on it, claiming the tax benefits of an installment sale make up for the lack of yield. How do we structure interest rates and amortization on seller financing to preserve our return?

Question

Tyler Smith · Accepted Answer

Accepting a zero-interest seller note is a valuation discount in disguise. The IRS will impute interest on interest-free notes anyway under Section 1274, meaning you will pay tax on phantom interest you never actually received. To protect your returns, you must negotiate a market-rate coupon that reflects your risk. As a junior lender, you are taking on unsecured or subordinated risk, and your interest rate should reflect that reality. Start by demanding an interest rate that sits comfortably above the Applicable Federal Rate, typically matching or exceeding the interest rate on the buyer's senior bank debt. If the buyer is cash-constrained immediately post-close, you can propose a payment-in-kind structure. This allows a portion of the interest to accrue and compound into the principal balance rather than being paid monthly in cash. You must also negotiate a structured amortization schedule rather than a simple interest-only balloon payment at the end of the term. A standard quarterly or semi-annual principal reduction plan lowers your risk profile over time. Ensure the note includes a cash-flow sweep clause, requiring the buyer to use a percentage of excess cash flow to pay down your note early. Use your weekly leadership sessions to model these scenarios. Treat this seller note as a capital allocation decision. Frame this to the buyer as a non-negotiable cost of capital. If they want you to act as their bank, they must pay bank-equivalent yields.