Business Acquisition Financing: How to Fund Buying a Business

The Small Business Administration (SBA) 7(a) program is the default financing path for buying a small business in the United States. Loans run up to $5 million, and for business acquisitions a 10 year term is typical, with no balloon payment at the end. The government guarantees a large share of the loan, which is what convinces banks to lend against a service business with few hard assets: they are effectively underwriting the company's documented cash flow, not its equipment list.

Buyers usually contribute a down payment of 10 to 20 percent of the total project cost, which includes the purchase price, working capital, and closing costs. The lender will require the target's federal tax returns, a review of the buyer's experience and personal finances, and, on larger deals, an independent business valuation that supports the purchase price. Underwriting takes time, so engage an SBA lender early, ideally before you sign a letter of intent, and get pre-qualified so sellers treat your offers seriously.

The practical implication of SBA leverage is striking: a buyer with $150,000 in cash can credibly pursue businesses priced around $1 million. Before you get attached to a listing, run the numbers through our SBA 7(a) loan payment calculator to see the monthly payment the business would need to support.

Seller financing means the owner accepts part of the purchase price as a promissory note, paid by the buyer over time out of the business's cash flow. Seller notes commonly cover anywhere from 10 to 60 percent of the price, with terms of 5 to 10 years and interest rates that typically run 6 to 10 percent. In deals that also include an SBA loan, the seller note is usually subordinated to the bank and may sit on a standby agreement that defers its payments for an initial period.

For buyers, a seller note does three jobs at once. It fills the gap between the down payment and what the bank will lend. It keeps the seller invested in a smooth handover, since they only collect in full if the business keeps performing. And it acts as a confidence signal: a seller who refuses to carry any paper on a business they describe as healthy is quietly telling you how they rate its future. You can model a seller note alongside your bank debt to see the combined payment burden.

Negotiate the note's terms as carefully as the price. Interest rate, amortization schedule, security, and what happens if the business hits a rough quarter all belong in the letter of intent. If you want to understand the other side of the table, read our companion piece on the seller's side of financing a sale.

Conventional (non-SBA) bank loans are an option when the deal is strong enough to stand without a government guarantee: substantial hard collateral, a buyer with deep experience and liquidity, or an existing banking relationship. Conventional acquisition loans often close faster than SBA loans and carry fewer program rules, but they typically demand larger down payments and shorter terms, which raises the annual debt service the business must cover. Compare structures side by side with our business loan payment calculator.

Equipment financing can carve out part of the purchase when the target owns significant machinery, vehicles, or fixtures. Because the loan is secured by the equipment itself, rates and approval standards are often more favorable than for cash-flow lending, and the equipment loan reduces the amount that must be financed through the main acquisition facility. The same logic applies to real estate: if the deal includes the building, a separate commercial mortgage with a longer amortization usually beats rolling the property into the business loan.

An earnout is a contingent portion of the price paid only if the business hits agreed targets after closing, usually revenue or gross profit measured over one to three years. Earnouts bridge valuation gaps: when the seller prices the business on its momentum and the buyer prices it on its history, an earnout lets both be right. The seller gets upside if the growth is real; the buyer avoids paying today for growth that never arrives.

Structure matters enormously. Tie the earnout to metrics the seller can verify and the buyer cannot easily manipulate (revenue is cleaner than net profit, which the new owner's spending decisions distort). Define the measurement period, the accounting rules, and the payment schedule in writing. Earnouts also interact with lender rules, and SBA-financed deals restrict how contingent payments can be structured, so raise any earnout with your lender before the letter of intent is signed.

Every stack starts with buyer equity: the cash you inject at closing. Lenders require it because a buyer with real money at risk behaves differently from one playing entirely with other people's capital. Beyond savings, common equity sources include home equity lines, retirement rollover structures set up with professional guidance, and family investment. Keep reserves outside the deal; the first year of ownership always brings surprises, and a buyer who spends every dollar at closing has no shock absorber.

If your target is larger than your capital allows, outside equity can scale you up. A search fund is the formalized version: investors back a searcher's hunt for a company, then fund the equity portion of the acquisition in exchange for ownership, leaving the searcher to run the business with meaningful upside. Informal versions exist too, such as a wealthy operating partner funding the down payment while you run the company. Both routes trade ownership percentage for reach, so model your personal outcome carefully before taking the money.

Whatever the mix, every lender runs the same test: the debt service coverage ratio (DSCR), which divides the business's annual cash flow by the annual payments on all acquisition debt. Lenders want 1.25x or better, meaning the business generates at least 25 percent more cash than the debt requires. That cushion is what absorbs a slow quarter, an equipment failure, or the revenue dip that often follows an ownership change.

DSCR is also the fastest way to sanity-check an asking price. If the listed price, financed at typical terms, produces a coverage ratio below 1.25x on the verified earnings, the price is too high for the cash flow no matter how attractive the business looks. Check any deal in minutes with our DSCR calculator, and remember that lenders compute coverage after subtracting a living salary for you, the new owner. A deal that only works if you pay yourself nothing does not work.

Consider a business priced at $1,000,000 with verified seller's discretionary earnings (SDE) of $250,000. A typical structure: the buyer injects $100,000 (10 percent), the seller carries a $150,000 note over 7 years, and an SBA 7(a) loan funds the remaining $750,000 over 10 years. At interest rates in the typical ranges, combined annual debt service lands in the neighborhood of $130,000 to $140,000, which puts the coverage ratio near 1.8x, comfortably above the 1.25x threshold, with room left to pay the new owner a real salary.

Notice what makes the example work: the price is a reasonable multiple of the earnings. Small businesses typically sell for 1.5x to 4x SDE, and this deal sits at 4x only because the financing terms are favorable and the earnings are verified. Before you commit to any structure, pressure-test the asking price with a data-driven valuation of the target, and walk the full acquisition process in our step-by-step guide to buying a business. Financing amplifies a good purchase and multiplies a bad one; the valuation discipline comes first.