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Deal Structure & Financing

Seller Financing: How It Works and Why Sellers Offer It

Updated September 10, 20268 min read

A practical guide to seller financing: typical terms, negotiation strategies, and why it can be a win-win deal structure.

Seller financing is one of those concepts that confuses first-time buyers until it clicks, and then it seems obvious. The seller agrees to accept a portion of the purchase price not as cash at closing, but as a promissory note that you pay back over time with interest. The seller becomes your lender for part of the deal.

This is not unusual or exotic. Seller financing appears in 60 to 90 percent of small business transactions, according to data from the Pepperdine Private Capital Markets Project. The average seller-financed portion is roughly 37 percent of the total purchase price when seller financing is the primary financing method, and 10 to 20 percent when combined with SBA or conventional bank lending. It is a standard, expected part of how small businesses change hands.

How It Works Mechanically

At closing, you pay the seller a portion of the purchase price in cash (your equity plus the bank loan proceeds). The remaining portion is documented as a promissory note: a legal agreement specifying the principal amount, interest rate, payment schedule, term, and any conditions or security interests.

A typical seller note on a $500,000 deal might look like this: principal of $75,000 (15 percent of the purchase price), interest rate of 7 percent, amortized over 5 years with monthly payments of approximately $1,485, secured by the business assets (subordinated to the senior bank or SBA loan).

You make monthly payments to the seller just as you would to a bank, except the seller holds the note rather than a financial institution. The seller receives their full purchase price, just spread over time rather than all at closing.

Why Sellers Agree to Finance Part of the Deal

This is the question first-time buyers always ask: why would the seller leave money on the table instead of getting cash? There are several reasons, and understanding them helps you negotiate better terms.

It makes the deal possible. Most small business buyers cannot write a check for the full purchase price. Banks will not lend 100 percent of the value. The gap between what the buyer can bring (equity) and what the bank will lend (typically 70 to 80 percent of the project cost) is filled by the seller note. Without seller financing, many deals simply would not close.

It signals confidence. When a seller agrees to leave money in the deal, they are making a bet that the business will continue to perform well enough for you to make the payments. This is a powerful signal to both the buyer and the lender. An SBA lender looks much more favorably on a deal where the seller is financing 10 to 15 percent than one where the seller demands all cash. The seller's willingness to take risk alongside the buyer is one of the strongest indicators of deal quality.

It achieves the seller's price. Sellers often face a choice: reduce the price to a level where a buyer can finance the deal entirely with equity and bank debt, or maintain the price and bridge the gap with a seller note. Many sellers would rather get their asking price paid over five years than accept a 15 to 20 percent haircut for an all-cash deal.

Tax advantages. By structuring the sale as an installment sale, the seller can spread their capital gains tax liability over multiple years rather than recognizing it all in the year of closing. This can result in a lower effective tax rate, particularly if the sale would otherwise push the seller into a higher bracket. Sellers should consult their own tax advisor, but this benefit is well-established under IRS installment sale rules (Section 453).

Typical Terms

While every deal is different, these ranges represent the broad market for seller-financed notes in small business acquisitions:

Amount: 10 to 30 percent of the purchase price when combined with SBA financing. 30 to 60 percent when seller financing is the primary financing method (no bank loan).

Interest rate: 5 to 10 percent. Below-market rates (2 to 4 percent) sometimes appear as a form of price concession. Above-market rates (above 10 percent) are uncommon and may signal a seller who is trying to extract maximum value from the note.

Term: 3 to 7 years. Five years is the most common term for notes combined with SBA financing. Shorter terms (3 years) increase monthly payments but reduce total interest cost. Longer terms (7 to 10 years) reduce monthly payments but keep the seller involved longer.

Amortization: most notes are fully amortizing (equal monthly payments that retire the principal over the term). Some include a balloon payment at the end of a shorter amortization schedule.

Security: the seller note is typically secured by the business assets but subordinated to the senior bank or SBA loan. This means if the business fails, the bank gets paid first and the seller gets what is left. This subordination is a meaningful risk for the seller, which is why sellers scrutinize buyers carefully.

Standby vs. Amortizing: A Key Distinction

When seller financing is combined with an SBA loan, the SBA has specific rules about how the seller note must be structured.

A full-standby note has no principal or interest payments during standby. Under SBA SOP 50 10 8, seller debt counted toward required equity must remain on standby for the SBA loan's entire life and cannot exceed half the required injection. A 24-month deferral is not enough. Confirm the applicable rules with your lender; the SBA publishes its SOP versions and effective dates.

An amortizing seller note repays principal over time. If payments begin immediately, include them alongside bank payments when reviewing the business's cash flow. Whether a particular structure is eligible depends on the lender's underwriting and the applicable program rules.

The distinction matters because it changes monthly cash flow. A $75,000 seller note repaid over five years at 7 percent costs approximately $1,485 per month. If payments are deferred for two years with no interest accrual, then repaid over three years, the payment is about $2,316. That is a mathematical comparison, not an SBA-compliant equity structure. If interest accrues during the deferral, the amount owed will be higher.

How Seller Financing Interacts with SBA Loans

The standard SBA-financed deal structure looks like this:

10 to 15 percent buyer equity (cash down payment). 70 to 80 percent SBA 7(a) loan. 10 to 20 percent seller note.

Ask the lender to separate the proposed funding into buyer cash, bank debt, and seller debt, and to document which amounts qualify toward required equity. A note in the funding stack is not automatically eligible equity.

Do not assume an advertised "zero down" deal meets your lender's requirements. Obtain written confirmation of the cash injection, standby period, permitted interest accrual, and repayment terms before relying on that structure.

Sellers have been using note terms as a negotiating lever, particularly in recent years. Rather than reducing their asking price, many sellers are offering larger seller notes with more favorable terms (lower interest, longer amortization, or standby periods). The effect is the same as a price reduction in terms of monthly cash flow, but the headline purchase price stays the same, which matters to sellers for ego and tax reasons.

When to Worry About the Absence of Seller Financing

Not every deal includes seller financing, and the absence is not automatically disqualifying. But it does warrant investigation.

If the seller is unwilling to carry any note, ask why. Acceptable answers include liquidity needs (medical expenses, divorce, another investment opportunity) and tax planning considerations. Less acceptable answers include vague reluctance or "our attorney advised against it." If the seller does not believe the business will perform well enough to support a note, that is information you should take seriously.

The absence of seller financing also affects your deal structure. Without a seller note, you need either more equity (20 percent or higher), a larger SBA loan (which means higher monthly payments), or a lower purchase price that allows the bank to finance a larger percentage. Any of these changes the economics of the deal.

Build the note structure

Principal carried by the seller

Enter the rate offered by the seller

From close of deal to final payment

Model assumes no payments or interest accrual during this period.

Lump-sum payoff before end of term

The defaults model immediate monthly repayment. Optional standby assumes no payments or interest accrual. The calculator does not determine SBA eligibility. Open the seller financing calculator for an explanation of the payment and balloon calculations.

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