Seller Note vs SBA Loan: Financing an Ecommerce Deal

Seller note or SBA loan? Use the seller note as your base when the first 90 days carry real risk, and use the SBA loan as your base when the business is stable and you want to keep your cash. If you remember one line, make it that. The rest of this post is the reasoning, run through one illustrative deal.

I have reviewed 50+ ecommerce acquisitions and the financing question comes up on almost every one. Most content treats it as a rate comparison. It is not. It is a question about who is exposed when things go sideways, and they go sideways more often than the listing suggests. If you are earlier in the process, start with my guide to how to acquire an ecommerce business, then come back.

One illustrative deal

Everything below is a hypothetical. It is not a real deal and not a client. I built it to make the tradeoffs visible, and the rates are my assumptions, not quotes.

The setup: an Amazon-led ecommerce brand with $500,000 in SDE, bought at a 3x multiple for $1,500,000. If the multiple logic is new to you, read how to value an ecommerce business first.

Two paths:

• Path A, SBA-led. 10% down ($150,000), a $1,350,000 bank loan, assumed 10% interest, 10-year term.
• Path B, seller-note-led. 30% down ($450,000), a $1,050,000 seller note, assumed 8% interest, 7-year term.

I gave Path B a bigger down payment on purpose. A seller carrying paper usually wants more of your own money in the deal than a bank with a government guarantee behind it. That is the first real difference, and most comparisons skip it.

I am not stating current SBA rates, guarantee percentages or down-payment minimums here. Those change, and lenders add their own rules on top. The SBA publishes program terms on its 7(a) loans page, which lists a $5 million maximum loan amount. Confirm everything else with your lender before you model a deal. My deeper take on the lender side is in SBA loans for buying an ecommerce business.

Total cost: what each path actually costs

Here is the math on my assumptions.

Item	Path A: SBA-led	Path B: Seller note
Cash at close	$150,000	$450,000
Amount financed	$1,350,000	$1,050,000
Assumed rate and term	10% over 10 years	8% over 7 years
Monthly payment	about $17,840	about $16,366
Total interest paid	about $791,000	about $325,000
Down payment plus all payments	about $2.29M	about $1.82M

Path A needs $300,000 less cash at close. Path B costs roughly $465,000 less over the life of the debt, because the term is shorter and the rate is lower in my assumptions. Change the assumptions and the gap moves. A 12-year bank term or a 10% seller note would shift it. The shape is what matters: the bank path is cheaper to enter and more expensive to carry.

Monthly payments land close together, about $17.8K vs $16.4K. The shorter note term eats most of the rate advantage in the monthly number. That means Path B only works if the business throws off enough cash to carry a short amortization.

Total cost is not the whole answer. A deal that is cheaper on paper and fails in month three is the most expensive deal you can do. The next two sections matter more than the table.

Seller alignment: who wants you to succeed

A bank wants to be repaid. That is all it wants. It does not care whether you restock correctly, whether the listing you inherited gets suppressed, or whether the supplier relationship transfers. It checks that your payment arrived.

A seller holding a note has a different interest. Their money is tied to the business after close. If you fail, they get back a damaged brand and a missed payment stream. That is why seller notes tend to come with better transition behavior: answered calls, introductions to the supplier, honest answers about the SKU that always acts up in Q4.

On the deals I have looked at, the sellers who offer to carry paper without being asked are usually the ones who believe their own numbers. A seller who refuses to carry any paper on a deal priced at the top of the range is telling you something. For what else I screen for, see what I look for when acquiring an ecommerce business.

There is a flip side. A seller holding a big note also has a say. They may want reporting, a covenant, or a security interest in the assets. If you disagree with them in year two, you are negotiating with someone who is owed money. A bank does not call to ask why you changed your ad strategy. A seller might.

An earnout is the cousin of the seller note. Use one only if the seller can actually influence the result. On an owner-operated brand, a lot of the value leaves with the owner, so a performance-linked piece can be fair to both sides. On a brand run by a team, it mostly creates arguments.

Month three: what happens when the first 90 days go badly

This is the part that decides which path you pick.

Say the worst plausible thing happens. The seller's reported numbers were slightly rosy, a key listing gets suppressed, and your cash flow drops 40%. On $500,000 of annual SDE that is about $41,700 a month before the hit and about $25,000 after. These are round illustration numbers, not a forecast. For what the first quarter looks like when it goes well, see the first 90 days after buying a business.

Now run each path through it.

Path A, SBA-led. Your payment is about $17,840 against about $25,000 of cash flow. You still pay, and you have roughly $7,000 a month left to restock, run ads and pay yourself. The lender does not know or care that month three was ugly. Expect to be asked for a personal guarantee, and confirm exactly what you are signing, because your exposure may not stop at the business. If you miss payments, you deal with a lender process, not a conversation.

Path B, seller-note-led. Your payment is about $16,366 against the same $25,000, leaving about $8,600. The bigger difference is what you can do. If the problem traces back to something the seller represented and got wrong, the offset clause lets you reduce payments while the dispute is resolved. If it is bad luck, you can call the seller and ask for a few months of interest-only payments. Some will say yes, because the alternative is worse for them. Some will say no. At least you have someone to ask.

A fixed bank payment is a floor under your cost structure. A seller note with the right clauses is a negotiating position. When the business is fragile, I want the negotiating position.

When the business is not fragile, the picture flips. A stable brand with diversified channels, a clean supplier relationship and 24 months of steady earnings does not need an offset clause. It needs cheap capital and a smaller check from you. That is where the SBA loan earns its place.

When to stack both

Many deals use both. The SBA loan funds most of the price and the seller carries a smaller note to close the gap. Lenders often want the seller note subordinated or on standby so it does not take cash ahead of the bank. Standby terms are set by the lender at the time you apply, so get them in writing before you promise anything to the seller.

Stacking works when:

1. The price sits at the top of what the cash flow can support.
2. The seller will carry 10 to 20 percent and you want their interest aligned.
3. The seller can live with being paid later than they would like.

It works badly when the seller needs the cash and only agreed to a standby note because there was no other buyer. That resentment shows up in the transition.

Where each path breaks

Risk	SBA-led	Seller note-led
Cash you need at close	Lower	Higher
Cost of capital over the term	Higher in my example	Lower in my example
Flexibility if month three goes bad	Little to none	Offset clause and a person to call
Seller stays engaged after close	Depends on the seller	Built into the structure
Speed to close	Lender timeline	Mostly legal drafting
Personal exposure	Expect a personal guarantee	Negotiable

The biggest trap on the SBA side is not the rate. The lender underwrites its own version of cash flow, not the seller's SDE, so the number you agreed to pay may not be the number the bank approves. Run the due diligence checklist before you commit to either structure. Financing a business that does not earn what the books say is how a 3x deal quietly becomes a 5x deal.

The biggest trap on the seller note side is the document. A casual note is a lawsuit waiting to happen. Get a lawyer. Define the payment schedule, the security, what happens on default, how the offset clause works, and what the seller is allowed to ask for.

The decision rule

Here is how I decide, in order.

1. Is the first 90 days a real risk? Single channel, one hero SKU, owner-dependent, account health questions, supplier concentration. If yes, lead with the seller note. You need the offset clause and the person to call.
2. Is the business stable and well documented? Two years of consistent cash flow, diversified channels, clean books. If yes, lead with the SBA loan and keep your cash.
3. Is the price at the top of what the cash flow supports? Stack them. SBA for the base, a seller note for the gap, and the seller's confidence on the table.
4. Will the seller not carry any paper at all? Treat that as a diligence finding. Ask why. If the answer is weak, the financing question is moot because you should not be buying.

Do not pick on rate alone. Pick on what happens in month three.

If you are on the other side of the table and wondering what a buyer will ask of you, read about selling your business before you accept a first offer. If you are buying and want a second read on a structure, my active criteria and how I evaluate deals are on the deals page.

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