Buying an existing business is one of the smartest moves in entrepreneurship. Instead of betting on an idea, you're buying proven cash flow — real customers, real revenue, a team that already knows how to run the place. But almost no one buys a business with cash out of pocket. The deal lives or dies on financing, and the structure you use determines not just whether you close, but whether the business can comfortably carry the debt once you own it.
The challenge is that acquisition financing has its own rules. It's not like borrowing for equipment or working capital, where the lender mostly looks at you. Here the lender underwrites two things at once — the business you're buying and you, the buyer — and the deal has to be structured so the target's cash flow can service the loan with room to spare. Get the structure right and the business pays for itself. Get it wrong and you've bought a job that bleeds cash. This guide walks through how the financing actually works.
SBA 7(a): the default tool for acquisitions
If there's a single product built for buying a business, it's the SBA 7(a) loan. It exists precisely to help qualified buyers acquire existing companies, and its terms are hard to beat for the purpose.
What makes it the workhorse:
- Size: funds acquisitions up to $5 million, which covers the vast majority of small-business purchases.
- Term: roughly 10 years for a business without real estate — long enough to keep the monthly payment manageable against the target's cash flow.
- Down payment: generally around 10%, far less than a conventional acquisition loan typically demands.
- Rate: among the lowest available for this kind of borrowing, because the government guarantee reduces the lender's risk.
The trade-off is process. SBA loans require a business valuation, real due diligence on the target, and government underwriting — which is why they take longer than working-capital products. For most buyers, that patience buys the cheapest, longest-term money on the table. (Buying into a franchise system works much the same way — see Franchise Financing: How to Fund a Franchise.) Run the payment before you anchor on a purchase price.
▦Estimate your SBA acquisition paymentRun the numbers in the sba 7(a) & 504 loans estimator →▸For the full qualifying picture — eligibility, documents, and what the SBA process looks like start to finish — read The SBA Loans Guide: 7(a), 504, Rates & How to Qualify.
How seller financing stacks with the loan
The most underused lever in acquisitions is the seller themselves. A motivated seller who wants to exit cleanly will often "carry a note" — financing part of the purchase price by letting you pay them over time instead of all at closing.
This matters for two reasons:
- It reduces your cash at closing. Every dollar the seller carries is a dollar you don't need to bring up front or borrow elsewhere.
- It can count toward your SBA equity injection. When seller financing is structured on standby — meaning the seller agrees not to collect payments for a set period — lenders may allow part of it to satisfy the down-payment requirement, lowering the cash you personally inject.
It's also a confidence signal. A seller willing to leave money in the deal is telling the lender — and you — that they believe the business will keep performing after they walk away. That single fact can move an underwriter.
What lenders actually evaluate
In an acquisition, the lender is underwriting a marriage of buyer and business. Strength on one side can offset a gap on the other, but three things drive every decision.
| What lenders check | What "strong" looks like | Why it matters |
|---|---|---|
| The target's cash flow (DSCR) | Profits cover the new loan payment with ~1.25x cushion or more | Proves the business can service the debt after you buy it |
| Buyer experience | Industry or management background relevant to the business | Predicts you can keep the cash flow running post-sale |
| Down payment / equity | ~10%+ of the purchase price, cash or standby seller note | Aligns your skin in the game with the lender's risk |
| Personal credit | 660–680+ for SBA | Sets your rate tier and clears the baseline |
The number that matters most is debt-service coverage — the target's cash flow measured against the new loan payment. A business that throws off comfortably more profit than the loan costs is financeable almost regardless of other factors. A thin-margin business that barely covers the payment is a hard file no matter how strong the buyer. This is why a good acquisition starts with the target's books, not your credit score.
Acquisition funding routes compared
SBA isn't the only path. The right route depends on deal size, speed, and what's being bought.
| Route | Best for | Down payment | Speed |
|---|---|---|---|
| SBA 7(a) | Most acquisitions up to $5M | ~10% | Weeks to a couple months |
| Conventional term loan | Smaller deals, strong buyer/cash flow | Often 20%+ | Days to weeks |
| Asset-based / CRE | Deals heavy in equipment or real estate | Varies by collateral | Weeks |
| Seller financing (standalone) | Small deals, motivated seller | Negotiable | Fast |
| Startup capital | Filling a working-capital gap post-close | N/A | Days |
Many of the strongest acquisitions blend these — an SBA loan for the bulk of the price, a standby seller note to soften the down payment, and a small working-capital cushion so day one of ownership isn't a cash crunch. The art is in the stack, not any single loan.
Timeline and how to apply
Acquisition financing rewards starting early. SBA deals typically run a few weeks to a couple of months once you account for valuation, due diligence, and underwriting. The buyers who close smoothly are the ones who lined up financing before signing a purchase agreement with a tight closing date — and who built realistic financing contingencies into the contract.
A clean sequence looks like this:
- Get the target's financials — typically 2–3 years of tax returns and recent profit-and-loss statements. This is what the lender underwrites.
- Pin down your structure — purchase price, your down payment, and any seller note, ideally on standby.
- Apply once and compare. Instead of approaching banks one at a time, a single application routes your deal to lenders who fund acquisitions, and competing offers come back side by side.
Pre-qualifying is a soft pull, so seeing your real options costs nothing and never touches your credit. The same disciplined approach that wins any financing — know your need, know your numbers, apply once — is laid out in How to Get a Business Loan: A Step-by-Step Guide.
One 2-minute application, routed across our lender network. Compare side-by-side acquisition offers — SBA, conventional, and asset-based — with no effect on your credit score until you accept one.
Buying a business is a structuring exercise as much as a financing one. Anchor on the target's cash flow, use SBA 7(a) as your base, let the seller carry part of the deal, and bring a real down payment — and the business you're buying becomes the thing that pays for itself. Do it the other way, with a vague plan and a deal that barely covers its debt, and even a great company can become a burden. Structure first, then finance.