How Much Business Can You Actually Afford? (And the Hard Truth About Seller Financing)

If we had to name the single most common gap we see in buyers on SMB.co, it's this: most people don't actually know what they can afford. They inquire on businesses far outside their range, and they tend to fall into one of two camps — either they assume they need to write a check for the full asking price, or they assume a seller will simply finance the whole thing for them. Both are wrong, and both waste everyone's time.

So let's fix that. Below we'll walk through how acquisition financing actually works — SBA loans, seller notes, and the other tools in the stack — bust the myths we hear every single day, and give you a calculator you can play with to answer the question every buyer is really asking: "What could I realistically buy today?"

Myth #1: "I need $2M cash to buy a $2M business"

This is the big one, and it's simply not how small business acquisitions are financed. A large share of Main Street and lower-middle-market deals are bought with an SBA 7(a) loan — and the SBA was built specifically so that qualified operators can buy good businesses without writing a check for the full price.

Here's the reality. For a business acquisition, the SBA 7(a) program will typically finance up to 90% of the deal. A single 7(a) loan is capped at $5M, while a combined 7(a) + 504 package can now reach up to $10M when the deal includes real estate or equipment. That means the buyer's required equity injection is usually around 10% — not 100%. On a $2M business, that's roughly $200,000 of equity, not $2,000,000 of cash.

And it can get lighter than that. The SBA allows up to half of that 10% injection to come from a seller note on full standby (meaning the seller agrees to receive no payments while the SBA loan is active). Use that structure and a buyer might bring closer to 5% of their own cash — about $100,000 on that same $2M business.

How SBA acquisition financing actually breaks down

For a typical 7(a) acquisition, the capital stack looks like this:

• SBA 7(a) loan — ~90% of the total project cost, amortized (commonly over 10 years for a business without real estate).
• Your equity injection — ~10%, of which up to half can be a standby seller note.
• Cash reserve — closing costs + working capital. This is the part buyers forget. You need cash on hand after closing to actually run the business: payroll, inventory, rent, and a cushion for the first few months.

Plug your own numbers into the calculator below. Start with "What can I afford?" to get a realistic target price, then switch to "Can I afford this deal?" to pressure-test a specific business.

Myth #2: "I'll just get the seller to finance the whole thing"

This is the other side of the same coin, and it's just as common. In fact, BizBuySell's research found that 61% of buyers hope seller financing will be part of their deal. The instinct is understandable — if the seller carries the paper, you need less cash and less bank involvement. The problem is the gap between what buyers want and what sellers will actually do.

The data is blunt: sellers rarely finance the majority of a deal, and almost never finance all of it. The IBBA's Q3 2025 Market Pulse report — the most authoritative source on how these deals are actually structured — shows that the overwhelming share of deal value still arrives as cash at close:

• Deals under $500K: ~83% cash at close, ~12% seller financing, ~4% earnout
• Deals $500K–$1M: ~87% cash at close, ~9% seller financing
• Deals $1M–$2M: ~81% cash at close, ~14% seller financing, ~4% earnout

That "cash at close" figure includes the buyer's down payment and the bank or SBA loan proceeds — money the seller walks away with on closing day. The seller-financing slice is just the part they agree to wait for. When sellers do carry a note, the typical range is modest: common broker guidance lands around 10–40% of the sale price, with some deals stretching toward 50–60% when there's significant leverage or a highly motivated seller. A note covering the majority of a deal is well outside the norm.

Why 100% seller financing is essentially a unicorn

So why won't a seller just finance the entire purchase? Broker Clint Fiore puts it bluntly: there are really only two reasons a seller takes on 100% of the financing risk — (1) they can't sell the business any other way, or (2) they have a very high-trust relationship with the buyer (family, a longtime employee). For a deal between strangers, both are red flags. The first means something is likely wrong with the business; the second simply doesn't apply to you.

There's so little real-world activity here that the data doesn't even track "100% seller financing" as a category — it's too rare to measure consistently. Even the most seller-friendly sources describe it as happening only "in rare cases," and almost always still requiring a 15–20% cash down payment from the buyer first. The realistic ceiling for a deal between two parties who didn't know each other beforehand is somewhere around 50–60% seller financing — and even that takes real leverage or a motivated seller.

The point isn't that seller financing is bad — it's one of the best tools you have. The point is that seller financing is almost always a piece of the puzzle, not the whole picture.

So what are your real financing options?

Most acquisitions come together as a stack of sources, not a single loan. Here are the tools buyers actually use:

• SBA 7(a) loan — the workhorse for most Main Street acquisitions. Up to 90% financing, up to $5M, amortized over ~10 years for a goodwill business. The best leverage available to a self-funded buyer.
• SBA 504 loan — for deals with owner-occupied real estate or heavy equipment. Often stacked with a 7(a); combined, the two can now reach $10M.
• Conventional bank loan — an option for strong buyers or asset-rich businesses, but usually requires a larger down payment (often 20–30%+) and tougher terms than the SBA. Faster and lighter on paperwork when it fits.
• Seller note — a slice of the price the seller agrees to be paid over time. Typically 10–40% of the deal, and on full standby it can also count toward part of your SBA equity injection. Powerful as a complement, rarely the whole deal.
• Earnouts — a portion of the price tied to the business hitting future targets. Helps bridge a price gap between buyer and seller, and shows up in roughly 4% of smaller deals.
• Your own equity (and partners) — the cash injection that anchors the whole structure. If you're short, raising a small amount from partners or investors is usually more realistic than hoping a seller carries everything.

For the typical owner-operator buyer, the highest-leverage realistic path is still an SBA 7(a) loan plus a partial standby seller note — which is exactly what the calculator above models.

The hard truth about "I have no cash"

Put the two myths together and you get the most important reality of all: a true zero-down acquisition is rare, and it's almost never an SBA deal. The SBA requires a minimum equity injection — and at least 5% of the project must come from the buyer's own cash (the rest of the injection can be a standby seller note). The program is built so that no qualified buyer puts in literally nothing. A lender advertising a "100% financed, no money down" SBA acquisition isn't following the rules, and that deal won't close.

So if you're genuinely short on cash:

• Seller financing is a bridge, not a substitute for equity. A standby seller note can cut your cash requirement roughly in half — real, meaningful help. But it doesn't take you to zero, and the seller still has to agree to it.
• Sellers carry notes to get deals done, not as a favor. A motivated seller will often hold a note because it helps the deal close and signals confidence in the business — but they'll scrutinize you harder when they have money on the line, not less.
• "No cash at all" usually means "not yet." The honest path is to raise a small amount of equity (partners, investors, an SBA-eligible co-owner who's a U.S. citizen), target a smaller business where 5% is an achievable number, or build up a down payment first. Chasing $1M+ deals with $0 in the bank is the single fastest way to lose credibility with sellers and brokers.

Two numbers that decide every deal: working capital and debt service

Even when a buyer has the down payment, two things quietly kill deals:

1. Working capital. The day after closing, you still have to make payroll and buy inventory. Buyers who put every last dollar into the down payment and keep nothing in reserve get squeezed in month one. Build a cushion in — that's why the calculator includes a reserve line.

2. Debt service coverage (DSCR). This is the number your lender cares about most. It compares the business's cash flow to its annual loan payment. Lenders generally want a DSCR of at least 1.25x — meaning the business earns $1.25 for every $1 of debt payment, after you've paid yourself a reasonable salary. If a business is priced so high that the loan payment eats all the profit, it won't get financed at that price, no matter how much cash you have. That's often the real ceiling on what you can afford — not your bank balance.

What to do next

Before you inquire on your next listing, run it through the calculator. Know your realistic price range, know the cash you'll actually need at closing, and know whether the business throws off enough cash flow to cover the loan. Then think about your structure honestly — which mix of SBA financing, a seller note, and your own equity actually gets the deal done. Showing up with that clarity instantly puts you ahead of most buyers, and it's exactly the kind of buyer sellers and brokers want to work with.

When you're ready, browse real opportunities on SMB.co and talk to an SBA-preferred lender early. The goal isn't to buy the biggest business you can borrow for — it's to buy the right business you can comfortably afford to own and operate.