Seller Financing Agreements for Business Acquisitions: Terms and Examples
Key terms in a seller financing agreement for buying a business: interest, amortization, balloon payments, collateral, guarantees, subordination, and payment examples.
A seller financing agreement is the set of documents under which the seller lets the buyer pay part of the purchase price over time. It usually includes a promissory note, a security agreement, and often a personal guarantee, with the key terms also reflected in the purchase agreement. When it is drafted well, it gives the seller a real claim on repayment and gives the buyer a predictable obligation the business can carry.
This guide covers the terms that matter most and shows how different choices change the buyer’s payments. For an overview of the different forms seller financing can take, see types of seller financing. If an SBA loan is involved, the SBA rules on seller notes override many of these choices; see SBA seller note standby requirements.
The documents involved
| Document | Purpose |
|---|---|
| Promissory note | The buyer’s promise to repay: amount, rate, schedule, default terms. |
| Security agreement | Grants the seller a lien on business assets as collateral. |
| UCC financing statement | Public filing that perfects the seller’s lien on personal property. |
| Personal guarantee | The buyer individually guarantees the note if the business cannot pay. |
| Subordination agreement | Sets the seller’s priority relative to a bank lender. |
| Purchase agreement provisions | Ties the note to the sale, including setoff and default rights. |
Key terms and how they are negotiated
Principal amount
Seller notes in small business deals often cover a minority of the price. The size depends on the seller’s need for cash at closing, the buyer’s other financing, and how confident the seller is in the business continuing to perform.
Interest rate
The rate is negotiated. There is no standard market rate for seller notes, and rates vary with prevailing interest rates, risk, and what else the parties trade. Sellers sometimes accept a lower rate in exchange for a higher price or a shorter term. For tax purposes, notes with very low stated interest can be subject to imputed interest rules; the IRS explains these in Publication 537. A CPA should review the rate.
Amortization and term
Amortization determines the payment size. The term determines when the remaining balance is due. They do not have to match.
Balloon payment
A balloon is the remaining balance due at the end of a term shorter than the amortization. It lowers payments but requires the buyer to refinance or pay a lump sum later. Buyers should model whether that is realistic.
Payment examples for a $300,000 note at 7%
The examples below use a hypothetical $300,000 seller note at 7% interest to show how structure changes cash flow.
Annual payment by structure, $300,000 at 7%
- $71k5-year full amortization$71,284, Paid off in year 5
- $42k10-year amortization, 5-year balloon$41,799, About $175,911 balloon due at year 5
- $21kInterest-only for 2 years, then 3-year amortization$21,000, Rises to about $111,158 per year in years 3 to 5
| Structure | Monthly payment | Total over 5 years | Balance at year 5 |
|---|---|---|---|
| 5-year amortization | $5,940 | About $356,400 | $0 |
| 10-year amortization, 5-year balloon | $3,483 | About $208,980 plus balloon | About $175,911 |
| 2 years interest-only, then 3-year amortization | $1,750, then $9,263 | About $375,470 | $0 |
The lowest early payment is not automatically the best choice. The interest-only structure leaves the buyer with very large payments in years 3 through 5, and the balloon structure depends on refinancing. Model each one against the business’s cash flow after the owner’s salary and any bank debt.
Coverage near 1.0x leaves no margin. In this example, a longer amortization on the seller note would be safer for both parties, because a buyer who cannot make payments does not help the seller either.
Collateral, guarantees, and subordination
- Collateral: sellers usually take a security interest in the business assets they sold. If a bank lender is involved, the bank will typically require a first-priority lien, and the seller takes a second position or is unsecured.
- Personal guarantee: sellers commonly ask the buyer to guarantee the note personally, especially when the buyer is a new entity. Buyers can negotiate limits, such as a guarantee that reduces as the balance is paid.
- Subordination: with bank financing, the seller signs an agreement placing the note behind the bank. The agreement may restrict payments if the bank loan is in default. In SBA deals, the lender may require the note to be on full standby.
Default and setoff provisions
The note should define what counts as a default (missed payments, sale of the business, bankruptcy), any notice and cure period, and the seller’s remedies. Buyers often negotiate a right of setoff, letting them reduce note payments for proven indemnification claims, such as undisclosed liabilities. Sellers usually resist broad setoff rights, so the language needs care.
Selected promissory note terms
Principal: $300,000. Interest: 7.0% per year, fixed. Payments: 120 equal monthly installments of principal and interest, beginning 30 days after Closing, with all remaining principal and accrued interest due on the 60th month (the "Maturity Date").
Prepayment: Maker may prepay in whole or in part at any time without penalty.
Security: secured by a security interest in the assets of the Business, subordinate to the lien of [Senior Lender] under the Subordination Agreement.
Default: failure to pay within 15 days after written notice; sale of substantially all assets of the Business without Holder’s consent; or bankruptcy of Maker.
Setoff: Maker may set off amounts finally determined to be owed by Holder under Section [X] (Indemnification) of the Purchase Agreement.
Negotiation considerations for each side
| Term | Buyer usually wants | Seller usually wants |
|---|---|---|
| Amortization | Longer, lower payments | Shorter, faster repayment |
| Balloon | None, or far out | Earlier, to reduce exposure |
| Rate | Lower | Higher, or a higher price |
| Guarantee | Limited or burn-off | Full personal guarantee |
| Setoff | Broad rights for indemnity claims | Narrow or none |
| Prepayment | No penalty | Sometimes a minimum interest period |
Before you sign
- Model payments against conservative cash flow, including bank debt.
- Confirm how a bank or SBA lender will require the note to be structured.
- Align the LOI, purchase agreement, and note so the terms match.
- Have a CPA review interest and installment sale tax treatment for both sides.
- Decide in advance how disputes over indemnification interact with note payments.
How amortization and a balloon change the payment
Hypothetical assumptions: the seller carries a $200,000 note at 6% interest. The two common ways to structure repayment produce very different monthly obligations for the buyer and very different risk for the seller.
The balloon structure lowers the buyer's payment by roughly $11,300 a year, which can make the deal fit the business's cash flow. In exchange, the buyer must refinance or pay about $124,400 in year three. If the business has a weak year or rates rise, that balloon can become a crisis. Sellers accept balloons because they shorten their exposure; buyers should only accept one with a realistic refinancing plan.
Which terms are usually negotiable
| Term | Buyer usually wants | Seller usually wants | Common middle ground |
|---|---|---|---|
| Interest rate | Lower rate | Rate that reflects the risk of a subordinated loan | A fixed rate set at signing |
| Term | Longer amortization | Shorter payoff | Moderate term with prepayment allowed without penalty |
| Collateral | Business assets only | Business assets plus a personal guaranty | Guaranty that reduces as the balance is paid down |
| Default cure period | Long notice and cure period | Short cure period | Written notice with a defined cure window |
| Covenants | Few restrictions | Limits on distributions and asset sales | Covenants tied to reporting and major transactions only |
If a senior lender is involved, its terms override many of these points. A bank will typically require the seller to subordinate the note and may restrict payments. In an SBA deal, the lender's standby agreement controls, as explained in our guide to SBA seller note standby requirements.
Common mistakes in seller financing agreements
- Leaving the note terms to the purchase agreement drafting stage instead of setting the main terms in the LOI.
- Agreeing to a balloon with no plan for how it will be paid.
- Failing to define what happens to the note if the buyer resells the business.
- Not coordinating the note with the senior lender's requirements, which forces renegotiation late in the process.
- Mixing contingent payments into a note without clear definitions of how performance is measured.
- Signing without each side's own attorney reviewing the documents.
Frequently asked questions
What interest rate is typical for seller financing?
There is no standard rate. The rate reflects the seller's risk, the senior debt, and the negotiation. Because the note is often subordinated, sellers commonly ask for a rate at or above what a bank would charge. Tax rules on minimum interest can also apply, so involve a tax advisor.
Can a seller financing agreement include an earnout?
Outside SBA financing, the parties can agree to contingent payments if they are clearly defined. In 7(a) change of ownership financing, the SOP prohibits seller earnouts. See SBA acquisition deal structures for compliant alternatives.
How much seller financing should a buyer ask for?
Enough to make the deal work, but not so much that total debt service strains the business. Test the combined payments against adjusted cash flow before agreeing. Our types of seller financing guide compares the main options.
Sources and references
Confirm transaction-specific requirements with your broker, lender, and advisors.
- IRS Publication 537: Installment Sales (opens in a new tab)Installment sale reporting and imputed interest considerations for seller-financed sales.
- IRS: Sale of a business (opens in a new tab)Tax treatment of business sales.
- SBA SOP 50 10: Lender and Development Company Loan Programs (opens in a new tab)SBA rules on seller notes when an SBA lender is involved.
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The BuyerPass Editorial team writes practical guidance for business buyers, brokers, and sellers. Articles are educational and are not legal, tax, lending, or investment advice.