Seller financing is one of the most useful tools in a small business acquisition. It is also one of the most misunderstood.
Here is the short version. In seller financing, the seller lets the buyer pay part of the purchase price over time instead of all at closing. The buyer signs a promissory note, pays the seller principal and interest on an agreed schedule, and the seller typically keeps some form of security until the note is paid off.
That sounds simple. The details are where deals get made or broken: how much of the price sits in the note, what the interest rate is, what happens if revenue drops, whether an SBA lender is also involved, and what the seller can actually do if payments stop.
This guide covers how seller financing works when you buy or sell a business, including SaaS, ecommerce, content, and agency businesses. If you came here for home-buying advice, the mechanics overlap, but real estate deals use mortgages and deeds of trust that do not apply to most online business sales.
What is seller financing?
Seller financing (also called owner financing, a seller note, or a seller carryback) is an arrangement where the seller acts as a lender for part of the purchase price.
Instead of receiving 100% of the price at closing, the seller receives:
- Cash at closing, from the buyer’s own funds, a bank or SBA loan, or both
- A promissory note for the remaining balance, repaid over an agreed term with interest
The note is a real loan. It has a principal amount, an interest rate, a payment schedule, a maturity date, and default terms. The difference is that the lender is the person who built the business, not a bank.
In Acquire.com’s August 2026 State of the Deal webinar, seller financing sat alongside full cash at close, earnouts, and equity rollovers as one of the four common deal structures. The team’s summary was blunt: useful when a buyer wants to preserve cash and the seller has high conviction in the business, with the trade-off that it creates an ongoing relationship between the two.
How seller financing works, step by step
1. The buyer proposes a structure in the LOI
Seller financing is usually proposed in the letter of intent. A strong LOI states the total price, how much is paid at closing, the note amount, the proposed interest rate and term, and any security the seller will receive. Acquire.com’s LOI Builder includes seller financing terms as a built-in option.
Vague language like “a portion of the price will be seller financed” creates problems later. The more precise the LOI, the fewer surprises in the purchase agreement.
2. Both sides negotiate the note terms
The main terms are:
| Term | What it covers | What to think about |
| Note amount | The share of the price paid over time | Larger notes mean less cash for the seller at closing and more ongoing risk |
| Interest rate | The seller’s return for carrying the debt | Often priced relative to bank and SBA rates, adjusted for risk |
| Term | How long the buyer has to repay | Shorter terms mean higher monthly payments |
| Amortization | How principal is repaid | Fully amortizing, interest-only for a period, or a balloon at the end |
| Security | What the seller can claim if the buyer defaults | Business assets, a personal guarantee, or both |
| Subordination | Who gets paid first if there is a bank loan | Senior lenders usually require the seller to sit behind them |
| Default and cure | What counts as a default and how long the buyer has to fix it | Missed payments, sale of the business, or breach of covenants |
| Prepayment | Whether the buyer can pay early | Most buyers want the right to prepay without penalty |
There is no universal “standard” seller note. Terms depend on the size of the deal, the business’s cash flow, the buyer’s experience, whether other financing is involved, and how much negotiating power each side has.
3. Due diligence happens with the note in mind
A seller who is financing part of the price has two reasons to do diligence: on the business (as usual) and on the buyer. Sellers often ask for proof of funds, a background on the buyer’s operating experience, and a plan for running the business after closing.
Buyers should still run full due diligence. A seller note does not replace verification of revenue, churn, traffic, or customer concentration.
4. The deal documents are drafted
The seller financing terms move from the LOI into the asset purchase agreement and a set of supporting documents. These typically include:
- Promissory note: the buyer’s promise to repay, with rate, term, schedule, and default terms
- Security agreement: grants the seller a security interest in specified business assets
- UCC-1 financing statement: filed to put other creditors on notice of the seller’s security interest in many U.S. deals
- Personal guarantee: optional, but common when the buyer is an individual or a new entity
- Subordination or standby agreement: required when a bank or SBA lender is also financing the deal
Each side should have its own attorney review these documents. Experienced deal counsel is especially important on security and default terms, because those are the clauses that matter most when something goes wrong.
5. Closing and transfer
At closing, the buyer pays the cash portion, usually through escrow, signs the note, and assets transfer to the buyer. The buyer owns and operates the business from that point. The seller becomes a creditor, not an owner.
6. Repayment and release
The buyer makes payments on schedule. When the note is paid in full, the seller releases the security interest (for example, by filing a UCC-3 termination) and the relationship ends.
A worked example: seller financing on a $1.2M SaaS acquisition
The example below is hypothetical. It is designed to show the mechanics, not to suggest typical terms.
A SaaS business produces $300,000 in normalized annual profit. Buyer and seller agree on a price of $1.2 million, or 4x profit. That sits inside the 3x to 5x profit range Acquire.com currently sees for many SaaS businesses, as discussed in our SaaS valuation multiples guide.
The buyer proposes:
- $840,000 (70%) cash at closing
- $360,000 (30%) seller note at 8% interest, fully amortized over 36 months
Here is what that looks like:
| Item | Amount |
| Monthly note payment | About $11,281 |
| Annual note payments | About $135,400 |
| Total interest paid to seller over 3 years | About $46,100 |
| Note payments as a share of current profit | About 45% |
What the buyer gets: $360,000 less cash needed on day one, and a seller who has a financial reason to support the transition.
What the seller gets: $840,000 at closing, $1,246,100 in total proceeds if the note is paid in full, and a buyer willing to meet the asking price.
What both sides should notice: almost half of current profit goes to note payments for three years. If revenue drops 20% after the handover, the buyer’s cushion gets thin quickly. That is why the interest rate is only one of the terms worth negotiating. Payment schedule, cure periods, and what counts as a default matter just as much.
Seller financing vs. earnouts, holdbacks, and SBA loans
Seller financing is often confused with other ways of deferring part of the price. They work differently.
| Structure | How it works | Is the amount fixed? | Main risk |
| Seller financing | Buyer owes a fixed amount and repays it with interest | Yes | Buyer default |
| Earnout | Part of the price depends on hitting future performance targets | No | Disputes over metrics and control |
| Seller holdback | Part of the price is held back, often in escrow, to cover claims or confirm representations | Usually, subject to claims | Release conditions and indemnity disputes |
| SBA or bank loan | A lender funds most of the price, and the seller is paid at closing | Yes | Underwriting, eligibility, and timeline |
The key difference: with seller financing, the buyer owes the money whether the business grows or not. With an earnout, the buyer only pays if targets are met. That makes seller notes more predictable for sellers, and earnouts more protective for buyers.
Many deals blend structures. A buyer might combine an SBA loan, a seller note, and a small earnout. Our guide to how offer components affect acquisition goals covers how to weigh those trade-offs.
How seller financing works with an SBA loan
In U.S. small business acquisitions, seller notes frequently sit alongside an SBA 7(a) loan. The rules matter, because they decide when the seller can actually be paid.
Under SBA SOP 50 10 8, effective June 1, 2025, a seller note can count toward the buyer’s required equity injection only if it is on full standby for the life of the SBA loan and makes up no more than half of the required injection. As this SBA down payment explainer lays out, with a 10% minimum injection, that caps the equity-eligible seller note at 5% of the total project cost.
“Full standby” means the seller receives no principal or interest payments while the SBA loan is outstanding. That can be 10 years. Sellers who expect monthly payments need to know this before they agree to a structure.
Seller notes that do not count toward the injection can often be repaid on a normal schedule, but they remain subordinate to the SBA lender and must fit the lender’s cash flow requirements. The August 2026 State of the Deal webinar noted that lenders typically look for at least 1.25x debt service coverage.
SBA procedures are updated periodically, and lenders often add requirements on top of the SBA minimum. Confirm current rules with your lender before signing an LOI. Acquire.com’s work with Franchable, covered in the State of the Deal recap, is designed to screen SBA eligibility early so financing issues surface before diligence. For more on the loan side, see how to get an SBA loan and SBA loan alternatives for acquisition financing.
Benefits of seller financing
For buyers
- Less cash at closing. Buyers can preserve capital for growth, working capital, or a second acquisition.
- Access to deals banks will not finance. Many online businesses have few hard assets, which can make traditional lending difficult.
- A seller with skin in the game. A seller who is owed money has a clear reason to support the transition and share what they know.
- A diligence signal. A seller who agrees to finance part of the price is expressing confidence in the business. A seller who refuses outright is not necessarily hiding something, but it is a fair question to ask.
- Flexible terms. Payment schedules can be tailored in ways a bank cannot match, such as interest-only months during the handover.
For sellers
- A larger buyer pool. Qualified operators without full cash can compete for the business.
- Support for price. Acquire.com’s January 2026 Multiples Report notes that higher multiples may involve conditions such as earnouts or seller financing, while all-cash deals often trade simplicity for a lower headline price.
- Interest income. The seller earns a return on the financed portion.
- Potential tax deferral. In the U.S., an installment sale can let a seller spread recognition of some gain over the years payments are received. More on that below.
Risks and downsides of seller financing
For sellers
- Default risk. This is the big one. If the buyer stops paying, the seller has to enforce the note. In an online business, the collateral may have lost much of its value by the time a default happens.
- Collateral that can decay. A SaaS product with rising churn, or a content site that lost search traffic, may be worth far less than the unpaid balance.
- Subordination. If a bank or SBA lender is involved, the seller is usually paid only after the senior lender.
- Less cash now. Money in a note is not money a seller can use for their next project.
- An ongoing relationship. The seller remains tied to the buyer’s performance for the life of the note.
For buyers
- Fixed debt on an uncertain business. The payments are due even if revenue dips during the handover.
- Personal exposure. A personal guarantee can put the buyer’s own assets on the line.
- Balloon payments. A large lump sum at the end of the term can force a refinancing at a bad time.
- Restrictive covenants. Some notes limit how the buyer can run, change, or sell the business until the note is paid.
How sellers can protect themselves
- Keep the note a manageable share of the price. The more cash at closing, the lower the risk.
- Vet the buyer, not only the offer. Operating experience, proof of funds, and a credible transition plan matter. The highest offer is not always the strongest one.
- Take real security. A security interest in the business assets, a filed UCC-1, and a personal guarantee where appropriate.
- Keep access to the assets that matter. For online businesses, that can include domains, code repositories, and key accounts. Define in the documents what happens to them on default.
- Add reporting covenants. Monthly or quarterly financial reporting gives the seller early warning before a missed payment.
- Define default and cure periods clearly. Include acceleration, so the full balance comes due after an uncured default.
- Restrict the resale of the business before the note is paid, or require the note to be paid off from the proceeds.
How buyers can protect themselves
- Model the payments against conservative cash flow. Stress test a 20% to 30% revenue decline, not only the current run rate.
- Negotiate the right to prepay without penalty, so you can refinance when it makes sense.
- Ask for a cure period on late payments, so one missed payment does not trigger a default.
- Consider a right of offset. Some buyers negotiate the ability to reduce note payments if the seller breaches representations about the business. Sellers often resist this, so expect it to be a real negotiation.
- Limit or avoid personal guarantees if you can, or cap them.
- Avoid a balloon you cannot fund. If there is a balloon, have a realistic plan to pay or refinance it.
Tax considerations
Seller financing often qualifies as an installment sale in the U.S. According to the IRS (Topic No. 705, Installment Sales), gain on an installment sale is generally reported under the installment method, which recognizes gain as payments are received, unless the seller elects out.
There are important limits:
- Depreciation recapture on depreciable assets is taxed as ordinary income in the year of sale, even if the cash has not been received.
- Inventory cannot be reported on the installment method, which matters for ecommerce sales.
- Interest the seller receives on the note is generally taxed as ordinary income.
- Purchase price allocation across assets affects both sides’ taxes and should be agreed in the purchase agreement.
Tax treatment depends on the deal structure, the entity type, and where each party is based. Both buyer and seller should get advice from a tax professional before agreeing on terms.
How to negotiate seller financing terms
Start with the business’s cash flow, not the price. The note has to be paid from what the business earns after the buyer’s own compensation and operating needs. If the payments do not fit, the structure does not work at any interest rate.
Trade terms, not only numbers. A seller may accept a larger note in exchange for a higher rate, a personal guarantee, or a shorter term. A buyer may accept a higher rate in exchange for interest-only months during the transition.
Put it in the LOI. Acquire.com’s team advises buyers to have financing arranged before submitting an LOI, because it builds seller confidence. A clear, specific seller financing proposal does the same.
Think about the relationship. A seller note means the two of you will be working together for years. Clear communication and reasonable terms tend to hold up better than a note that is aggressive on either side.
Is seller financing a good idea?
It can be, for both sides, when:
- The business has stable, verifiable cash flow that comfortably covers the payments
- The buyer has relevant experience and meaningful cash in the deal
- The seller is comfortable being paid over time and has real security
- The note is one part of a structure, not a substitute for proper diligence
It is a weaker fit when the business is in decline, the buyer has little of their own money at risk, or the payments would consume most of the business’s profit.
Buying or selling with seller financing on Acquire.com
On Acquire.com, buyers can browse vetted businesses for sale and propose seller financing directly in their LOI. Sellers can list their business and compare offers on price, structure, and certainty of close, not only the headline number.
If you are planning an exit and want to know what your business could be worth before you think about structure, start with a free, confidential valuation.
Frequently asked questions
How does seller financing work?
The seller lets the buyer pay part of the purchase price over time. The buyer pays the rest at closing, signs a promissory note for the balance, and repays the seller principal and interest on an agreed schedule. The seller usually holds a security interest in the business assets until the note is paid.
What is another name for seller financing?
Seller financing is also called owner financing, a seller note, a seller carryback, or vendor financing. In real estate, similar arrangements include land contracts and purchase-money mortgages.
Is seller financing a good idea?
It can be when the business has stable cash flow that comfortably covers the payments, the buyer has meaningful cash in the deal, and the seller has proper security. It is riskier when the business is declining or the payments would consume most of its profit.
What are the downsides of seller financing?
For sellers, the main risks are buyer default, collateral that loses value, being subordinated to a bank lender, and receiving less cash at closing. For buyers, the risks include fixed payments on an uncertain business, personal guarantees, balloon payments, and restrictive covenants.
Is seller financing legal?
Yes. Seller financing is legal and common in business sales. Some real estate seller financing is subject to additional consumer lending rules, and state laws vary, so both parties should use attorneys to document the note and security correctly.
Can seller financing be combined with an SBA loan?
Yes. Under SBA SOP 50 10 8, a seller note can count toward up to half of the buyer’s required equity injection if it is on full standby for the life of the SBA loan. Other seller notes may be allowed but are subordinate to the SBA lender. Confirm current requirements with your lender.
What is the difference between seller financing and an earnout?
With seller financing, the buyer owes a fixed amount regardless of performance. With an earnout, part of the price is only paid if the business hits agreed targets after closing.
What happens if the buyer defaults on a seller note?
The seller can enforce the remedies in the note and security agreement. These can include accelerating the full balance, claiming secured business assets, or pursuing a personal guarantee. The practical value of those remedies depends on how well the documents were drafted and the condition of the business at the time.