Almost nobody buys a business with their own money. They buy it with a stack of other people's money, arranged in layers, with their own cash sitting at the bottom where it absorbs the first loss.
The layers are the interesting part. A bank lends against the business's cash flow. The seller lends against their confidence that the business will keep performing. Investors put in equity in exchange for a share of the upside. And the buyer puts in enough of their own money to convince everyone else they won't walk away when things get hard.
How you arrange that stack determines what you can afford, how much risk you carry personally, and how much room you have when the first year doesn't go to plan. This guide covers how acquisition financing works, the main sources of capital and when each one fits, what lenders examine before they fund, and the risks that catch first-time buyers off guard.
What Is Acquisition Financing?
Acquisition financing is the money used to buy an existing business, as opposed to money used to start one or to grow one you already own. The distinction matters because lenders and investors underwrite an acquisition differently. They're not betting on an idea. They're betting that an established stream of profit will keep flowing after the owner changes.
What acquisition financing covers
The purchase price is only part of it. A properly financed acquisition also covers closing costs, including legal fees, lender fees, valuation and quality of earnings reports, and any loan guaranty fees. It covers working capital, meaning the cash the business needs on day one to make payroll and pay vendors while customers pay their invoices. And it sometimes covers real estate, equipment, or inventory purchased alongside the business.
Buyers who finance only the purchase price tend to discover the rest in the first few months of ownership, which is the worst possible time to go looking for more money.
Debt vs. equity financing
Every source of acquisition money falls into one of two buckets.
Debt is borrowed money you repay with interest on a fixed schedule. You keep full ownership of the business and all of the upside. In exchange, you take on a fixed obligation that has to be paid whether the business has a good month or a bad one. Bank loans, SBA loans, seller notes, and lines of credit are all debt.
Equity is money invested in exchange for ownership. There's no repayment schedule, so it doesn't strain monthly cash flow. In exchange, you give up a share of the profits, the eventual sale proceeds, and often some control over decisions. Investor capital, private equity, and your own cash are all equity.
Most acquisitions use both. Debt is cheaper as long as the business can carry it. Equity is safer because it doesn't have to be repaid. The financing question is really a question of balance: enough debt to make the deal affordable, not so much that one bad quarter puts the business in danger.
How Business Acquisition Financing Works
Most acquisition financing comes down to two numbers: what the business is worth, and how much debt its earnings can safely support. Everything else in the structure flows from those two.
How much lenders will finance, and how much you'll put in
Lenders don't lend against the purchase price. They lend against the business's ability to repay, measured by its historical cash flow. A business earning $1 million a year can support a certain amount of debt, regardless of whether you've agreed to pay $4 million or $6 million for it.
That's why the buyer's contribution varies so much from deal to deal. Under the SBA 7(a) program, an initial acquisition requires a minimum equity injection of 10% of total project cost, and part of that can come from a seller note on full standby. Conventional bank loans without a government guarantee generally require more equity, and lenders often think about how much to lend as a multiple of the business's EBITDA rather than as a percentage of the price.
The practical consequence is that the gap between what the business earns and what you've agreed to pay has to be filled by someone. If the earnings support $4 million of debt and the price is $6 million, the remaining $2 million comes from your cash, a seller note, investors, or some combination of the three.
How the purchase price is set: adjusted EBITDA and multiples
Most small and mid-sized businesses are priced as a multiple of earnings. For larger companies, the earnings figure is usually adjusted EBITDA: earnings before interest, taxes, depreciation, and amortization, adjusted for owner compensation, personal expenses, and one-time items. Smaller businesses are often priced on seller's discretionary earnings, which adds back the full compensation of one working owner.
The multiple depends on size, industry, growth, customer concentration, recurring revenue, and how much the business depends on its owner. Bigger, more diversified, less owner-dependent businesses command higher multiples. For reference, Stanford GSB's 2024 Search Fund Study put the median search fund acquisition at 7.0 times EBITDA on a median purchase price of $14.4 million. Smaller businesses typically trade lower.
The adjusted earnings figure deserves more scrutiny than the multiple. A seller who claims $1.6 million of adjusted EBITDA and can document only $1.4 million has just inflated the price by the multiple times $200,000. At 4.5 times, that's $900,000. For how buyers test those adjustments, see our guide to how buyers calculate adjusted EBITDA.
Example: how a typical acquisition is structured
Here's an illustrative deal that's too large for an SBA loan alone, which forces the kind of layering most buyers above the lower end of the market deal with.
A business produces $1.6 million of verified adjusted EBITDA and sells for 4.5 times, or $7.2 million. Add $250,000 in closing costs and $300,000 of working capital, and total uses come to $7.75 million.
The sources look like this:
| Source | Amount | Share | Terms (illustrative) |
|---|---|---|---|
| Senior bank term loan | $4,000,000 | 52% | 7-year amortization at 8.5% |
| Seller note | $1,200,000 | 15% | 5-year amortization at 6% |
| Buyer and investor equity | $2,550,000 | 33% | No repayment schedule |
| Total | $7,750,000 | 100% |
Annual debt service on the senior loan comes to about $760,000. The seller note adds about $278,000. Together that's roughly $1.04 million a year against $1.6 million of EBITDA, a debt service coverage ratio of about 1.54 times.
That looks comfortable, and on paper it is. Now drop EBITDA by 20%, which can happen when a key customer leaves or a new owner loses a few relationships during the transition. Coverage falls to about 1.23 times. Still paying the bills, but with little room for anything else. That thin cushion is why the structure matters as much as the price, and why the risks section below spends so much time on working capital.
Types of Acquisition Financing
There are more ways to finance an acquisition than most buyers realize. They differ in cost, speed, how much of your own money they require, and how much control you give up.
SBA 7(a) loans
The SBA 7(a) program is the most common financing for small business acquisitions. A bank lends the money and the SBA guarantees much of it, which lets the bank finance goodwill-heavy deals with as little as 10% down and a 10-year amortization. The maximum loan is $5 million.
The tradeoffs are real: personal guarantees, a slower process, no earnouts, and since October 2026, stricter underwriting that sizes the loan on historical earnings at 1.25 times coverage, plus a lender-ordered quality of earnings report on deals of $3 million or more. Our full guide to SBA loans for buying a business covers the rules in detail.
Conventional bank term loans
A conventional term loan has no government guarantee, so the bank carries all of the risk itself. Expect it to ask for more equity, more collateral, and a shorter amortization than an SBA loan, with terms on the business portion usually well short of the SBA's 10 years.
What you get in return is flexibility. Conventional loans aren't bound by SBA rules, so the seller can keep a minority stake, an earnout is possible, and the process is usually faster and lighter on paperwork. Conventional financing tends to suit buyers with strong personal balance sheets, deals larger than the SBA cap, and businesses with substantial hard assets.
Asset-based loans
An asset-based loan is secured by specific assets of the business: accounts receivable, inventory, and sometimes equipment. The amount you can borrow is set by a borrowing base, a percentage of eligible receivables plus a smaller percentage of eligible inventory.
Asset-based lending works well for distributors, manufacturers, and other businesses with large balance sheets of receivables and inventory. It works poorly for service businesses, where most of the value is goodwill and there's little to lend against. And because availability depends on collateral, it can shrink when you need it most. Receivables that age past 90 days typically fall out of the borrowing base, so a slowdown in collections reduces your available credit at the same moment cash gets tight.
Seller financing and seller notes
In a seller-financed deal, the seller accepts part of the purchase price as a promissory note, paid over time with interest. Seller notes are common in small business deals because they bridge the gap between what a bank will lend and what the seller wants, and because they signal something every buyer should want to hear: the seller believes the business will keep producing enough cash to pay them.
Terms vary widely, and in SBA deals they're tightly regulated. A seller note counts toward the required equity injection only if it's on full standby, with no payments for the life of the SBA loan. Our guide to seller notes walks through how they're structured.
Earnouts
An earnout makes part of the purchase price contingent on the business hitting performance targets after closing, typically revenue, gross profit, or EBITDA over one to three years. If the targets are met, the seller gets paid more. If not, they don't.
Earnouts bridge valuation gaps. When a seller insists the business will keep growing and a buyer isn't convinced, an earnout lets both sides bet on the outcome. They also generate disputes. After closing, the buyer controls the business, so the seller often ends up arguing about how the metric was calculated, which expenses were allocated, and whether the buyer ran the business in a way that hurt the numbers. Define the metric, the accounting method, and the measurement period precisely, or expect a fight.
Earnouts aren't allowed in SBA-financed deals, so they belong in conventional and privately financed acquisitions.
Equity investors, search funds, and private equity
Equity investors provide capital in exchange for ownership, and there are several kinds.
In a traditional search fund, investors back a searcher's salary and expenses while they look for a business, then get the first right to fund the acquisition, usually ending up with a majority of the equity while the searcher earns a meaningful stake over time. Self-funded searchers pay their own way during the search and raise equity deal by deal, keeping more ownership.
Private equity firms buy businesses outright, usually with a mix of their fund's equity and significant debt, and often fold the company into a larger platform. Individual investors, family offices, and friends and family fill the gaps in smaller deals.
The cost of equity isn't an interest rate. It's ownership. Every dollar of outside equity reduces your share of the profits and of the eventual sale. In exchange, it carries no fixed repayment and often brings expertise and networks along with the money.
Mezzanine financing
Mezzanine financing sits between senior debt and equity. It's subordinated to the senior lender, meaning it gets repaid only after the bank, so it carries more risk and costs more. Lenders often combine interest payments with interest that accrues and gets paid later, and sometimes take warrants or a small equity stake on top.
Mezzanine debt mostly appears in larger lower middle market and middle market deals, where it fills the space between what a bank will lend and what the buyer and investors want to contribute. It's rarely used in small acquisitions, and when it is, the cost needs to be modeled carefully against the earnings it depends on.
Bridge loans
A bridge loan is short-term financing that covers a timing gap, such as closing before longer-term financing is in place or before an asset is sold. Bridge loans are fast and expensive, and they come with one non-negotiable requirement: a clear, realistic way to pay them off. A bridge without a confirmed exit is just an expensive problem with a deadline.
Lines of credit for working capital
A revolving line of credit isn't usually used to pay the purchase price, and it shouldn't be. Its job is to fund the business's day-to-day cash needs after closing: payroll during a slow collection cycle, inventory ahead of a busy season, the expenses that land before the revenue does.
It's one of the most important parts of the financing package, and one of the most often forgotten. More on why in the risks section.
Personal funds, 401(k) rollovers, and online lenders
Personal savings and home equity are the most common sources of the buyer's own equity. Lenders will want to see where the money came from and how long it's been in your account, and they generally won't count borrowed money toward your required equity.
A 401(k) rollover arrangement, known as Rollovers as Business Start-ups or ROBS, lets buyers use retirement funds to buy a business without an early withdrawal penalty. The structure requires a C corporation, a qualified retirement plan that buys the company's stock, and ongoing compliance, including annual plan filings. The IRS doesn't consider ROBS abusive by definition, but it has called the arrangements questionable, and its compliance project found that many businesses funded this way failed, with owners losing both the business and their retirement savings. If you're considering it, work with a specialist, and be honest with yourself about what happens to your retirement if the business doesn't work.
Online lenders can fund quickly with less paperwork, but usually at much higher rates and shorter terms than banks. For an acquisition, where the debt has to be repaid from the business's cash flow over years, short-term high-cost debt is rarely a good fit.
How to Choose the Right Financing Structure
There's no single best structure. The right one depends on the size of the deal, the type of business, how much cash you have, how much risk you'll accept personally, and how much control you want to keep.
Combining financing sources
Most deals combine sources, and the combinations follow a recognizable pattern.
The most common small business structure pairs an SBA 7(a) loan with the buyer's cash and a seller note on full standby. Larger deals often use a conventional senior loan, a seller note that's actually paid, and buyer and investor equity, as in the example above. Asset-heavy businesses may add an asset-based facility. And almost every deal should include a working capital line of credit alongside the acquisition debt.
When you combine sources, the order of repayment matters. Senior lenders are repaid first and will insist on it in writing through subordination agreements. Seller notes and mezzanine debt sit behind them. Equity gets what's left. Each layer's cost reflects its position in that line, which is why debt further back costs more.
Comparing your options: cost, speed, down payment, and control
The table below compares the main sources on four dimensions buyers usually care about most. Actual terms vary by lender, deal, and market conditions.
| Financing source | Cost | Speed | Buyer cash needed | Control given up |
|---|---|---|---|---|
| SBA 7(a) loan | Low to moderate | Slow | Low (10% minimum) | Low, but personal guarantee required |
| Conventional bank term loan | Low to moderate | Moderate | Moderate to high | Low, with covenants |
| Asset-based loan | Moderate | Moderate | Varies with collateral | Low, with collateral reporting |
| Seller note | Low to moderate | Fast | Reduces buyer cash | Low |
| Earnout | Contingent | Fast | Reduces upfront cash | Low, but seller scrutiny after close |
| Mezzanine financing | High | Moderate | Reduces equity needed | Moderate, sometimes includes equity |
| Equity investors | Highest (ownership) | Varies | Reduces buyer cash | Moderate to high |
| Bridge loan | High | Fast | Varies | Low, but tight deadline |
| ROBS (401(k) rollover) | Low cash cost, high personal risk | Moderate | Uses retirement savings | Low |
| Online lender | High | Fast | Varies | Low |
What Lenders Check Before They Fund an Acquisition
Lenders are asking one question in five different ways: will this loan get repaid from the business's cash flow, and if not, how do we recover our money?
Your credit, experience, and equity contribution
Lenders look at the buyer as closely as the business. Personal credit history shows how you've handled obligations. Industry and management experience show whether you can run what you're buying, which matters a great deal when the seller is leaving. And your equity contribution shows how much you have at risk, which lenders read as a measure of commitment.
They also check where your equity comes from. Money that appears in your account shortly before you apply will get questions, and borrowed money generally can't count as your equity.
The target business's financials
Expect to provide at least three years of the business's tax returns and financial statements, year-to-date interim financials, accounts receivable and payable agings, a debt schedule, and customer revenue information. Lenders will usually order IRS tax transcripts to confirm the returns match what was filed.
What they're looking for is consistency and trend. Do the internal financials tie to the tax returns? Is revenue stable or growing? Are margins holding? Does one customer account for too much revenue? A business with three years of clean, consistent, monthly financials is far easier to finance than one whose numbers have to be reconstructed.
Debt service coverage ratio (DSCR)
The debt service coverage ratio is the central test in acquisition lending. It divides the business's available cash flow, usually EBITDA, by total annual debt payments after the acquisition. A ratio of 1.25 means the business earns $1.25 for every $1 of debt payments.
Lenders set minimums, and they vary. For SBA initial acquisitions, the floor is 1.25 times, measured on historical earnings. Conventional lenders set their own thresholds, and many use a more conservative version of cash flow that subtracts capital expenditures and taxes.
You can run this yourself in a spreadsheet before you ever talk to a lender. In Excel or Google Sheets, =EBITDA/(-PMT(rate/12, years*12, loan_amount)*12) gives you coverage on a single loan. Add a line for each additional loan, then rerun the calculation with EBITDA reduced by 10% and 20%. If coverage drops below 1.25 at the lower figure, the deal is fragile, and you want to know that before you sign a letter of intent.
Collateral and personal guarantees
Lenders take a lien on the business's assets. In goodwill-heavy deals, those assets rarely cover the loan, so lenders look to the buyer personally. Owners with meaningful stakes are typically required to personally guarantee the debt, and lenders may also take liens on personal assets, including real estate.
A personal guarantee means the bank can come after your personal assets if the business can't repay. For most small business acquisitions, it's not optional.
Valuation and verified earnings
Lenders increasingly want an independent view of what the business is worth and whether its earnings are real. On SBA acquisitions, an independent valuation is now required on every change of ownership, and a lender-ordered quality of earnings report is required on initial acquisitions and expansions of $3 million or more. Conventional lenders and private equity buyers have relied on quality of earnings work for years.
The reason is simple: every lending decision depends on the earnings figure. If the seller's adjusted EBITDA includes add-backs that won't survive scrutiny, the loan was sized on a number that isn't real. A quality of earnings review ties reported profit back to bank statements, separates recurring from one-time revenue, tests each adjustment, and produces the figure lenders actually underwrite to. Our guide to quality of earnings reports explains what they examine and why lenders now depend on them.
How to Finance a Business Acquisition, Step by Step
Here's the sequence that tends to produce the fewest surprises. Several steps overlap in practice, but the order of the thinking matters.
Know what you're buying and what it really earns
Start with the earnings, not the price. Get three years of tax returns and financial statements, ask the seller to walk you through every add-back, and apply your own skepticism. Expenses labeled one-time that show up every year aren't one-time. An owner's spouse doing the books for free is a cost the new owner will pay.
A quick proof of cash helps here. Total the deposits on the bank statements month by month and compare them to recorded revenue. Large unexplained gaps are worth understanding before you go further.
Assess your own financial position
Figure out how much cash you can put in without leaving yourself exposed, and keep a personal reserve separate from what you'll invest. Pull your credit reports and fix anything you can. Decide honestly how much personal risk you're willing to accept, including a personal guarantee on debt that could exceed your net worth.
Budget for the full cost of the deal
The purchase price is the biggest number, not the only one. Budget for legal fees, lender fees, any SBA guaranty fee, the valuation, a quality of earnings review, working capital for day one, and transition costs while you learn the business.
Then add a cushion for things you can't see yet. Tom Dillon, founding partner of Frak Finance, puts it plainly: "you're still going to need probably more cash than you expect." New owners find equipment that should have been replaced years ago, subscriptions the business needs, and small fixes the previous owner kept putting off. Each is minor. Together they add up fast.
Talk to lenders before you sign the letter of intent
Most buyers do this backward. They negotiate a price, sign a letter of intent, and then find out what a lender will actually finance.
Talk to two or three lenders early, with the seller's financials in hand. Ask what they'd lend against those earnings, what equity they'd want, how they treat seller notes, and how long their process takes. Then write the letter of intent around a structure you already know can be financed, with financing and diligence contingencies in case the lender's valuation or earnings review comes in lower than expected.
Prepare your loan package
A complete, organized package moves faster and makes a better impression. It typically includes personal financial statements and tax returns for each owner, a résumé showing relevant experience, proof of your equity and its source, the target's financial statements and tax returns, the letter of intent, and a business plan covering how you'll run the business after closing.
Lenders want to see that you understand the business you're buying. A plan that explains the first year in concrete terms, including who stays, what changes, and how you'll protect the key customer relationships, carries real weight.
Complete due diligence and close
Run your own diligence alongside the lender's underwriting, not after it. Confirm the earnings, review contracts and leases, check customer concentration, interview key employees if the seller allows it, and agree on how working capital will be measured at closing. A quality of earnings review is the most direct way to confirm the earnings figure the entire deal rests on.
At closing, the loan documents, purchase agreement, seller note, and any subordination agreements get signed together, your equity gets verified, and the funds move. Then the transition starts.
Risks to Watch in Acquisition Financing
Most acquisitions that fail financially don't fail because the business was bad. They fail because the financing left no room for the normal bumps of a change in ownership.
Taking on more debt than the business can support
The temptation is to finance as much as lenders will allow. Resist it. Lenders size debt to historical earnings, but your first year as owner will rarely match the seller's best year. Customers test new owners. Key employees sometimes leave. You'll make decisions that cost money before they pay off.
Stress-test the structure before you commit. If a 20% drop in EBITDA would push coverage close to or below 1.25 times, you're carrying more debt than the business can comfortably support. Reduce the debt, lower the price, or add equity before closing, because fixing it after closing is far more expensive.
Personal guarantees
A personal guarantee turns business debt into personal debt. If the business can't repay, the lender can pursue your savings, your investments, and often your home. In some states and situations, a spouse's assets may also be exposed, depending on how property is owned and what was signed.
Understand exactly what you're guaranteeing before you sign. Read whether the guarantee is limited or unlimited, whether it's joint with other owners, and what collateral backs it. Then confirm the earnings you're relying on are real. A guarantee on debt sized against inflated earnings is the single most expensive mistake an acquirer can make.
Running short on working capital after closing
This is the risk that catches the most buyers, because it shows up after closing when everyone's attention has moved on.
A business needs a normal level of working capital to operate, enough cash to keep paying people and vendors while receivables come in. The amount left in the business at closing gets negotiated, and the seller generally wants to take as much cash as possible. Even when the working capital target is set fairly, new owners almost always need more than they planned.
Tom's advice is to arrange the solution before you need it. In his words, having a "working line of credit alongside your acquisition is important," because "it can help with growth. It can help with stress." He's equally clear about the other side of it. A line of credit is a bridge for timing gaps, not a source of permanent funding. Borrow from banks that offer reasonable terms, and "make sure that there's an ability to pay down." Owners who lean on the line month after month without paying it back find that the hole gets deeper every quarter.
Arrange the line at the same time as the acquisition debt, while the lender is already underwriting the business. Size it to cover a realistic shortfall, such as a slower collection cycle or a seasonal low. Then build a 13-week cash forecast in the first month of ownership, so you can see the tight weeks coming instead of discovering them.
Frequently Asked Questions
Quick answers to the questions buyers ask most.
What is the best way to finance a business acquisition?
For most small business acquisitions below $5 million in financing, an SBA 7(a) loan combined with the buyer's cash and a seller note is the most common and affordable structure. Larger deals usually combine conventional senior debt, a seller note, and buyer or investor equity. The best structure is the one where the business's verified earnings comfortably cover all debt payments, even if earnings dip after closing.
How much money do I need to buy a business?
It depends on the price and the financing. Under the SBA 7(a) program, an initial acquisition requires at least 10% of total project cost, including closing costs and working capital, and at least half of that has to be your own money. Conventional financing usually requires more. Beyond the down payment, budget for closing costs, due diligence, and a personal cash reserve.
Can I get 100% financing to buy a business?
Rarely, and usually not wisely. SBA initial acquisitions require a 10% equity injection that can't be waived, and at least half must come from the buyer. Conventional lenders typically want more. Structures that combine heavy seller financing with bank debt can reduce how much cash you put in, but a deal with no buyer equity leaves no cushion when earnings dip, and most lenders won't fund it.
How hard is it to get an acquisition loan?
It's achievable for buyers with good credit, relevant experience, enough cash for the down payment, and a target business with steady, documented earnings. It gets harder when earnings are volatile, records are disorganized, the buyer lacks industry experience, or the price is high relative to cash flow. Since October 2026, SBA acquisition loans are also sized on historical earnings only, so businesses whose value rests on future growth are harder to finance.
Can I combine an SBA loan with seller financing?
Yes, and it's one of the most common structures. A seller note on full standby, with no payments for the life of the SBA loan, can count toward the required equity injection, but standby debt and passive investor money together can cover no more than half of it. Seller financing beyond that can be repaid on a normal schedule, but those payments count in the debt service coverage calculation, and the seller must subordinate to the SBA lender.
What is the biggest risk in acquisition financing?
Borrowing against earnings that aren't real or won't continue. If the earnings figure the deal was priced and financed on includes unsupported add-backs or one-time revenue, the debt payments are fixed while the cash to pay them isn't there. With a personal guarantee, that shortfall becomes the buyer's personal problem. Verifying earnings before closing, keeping debt at a level the business can carry through a bad year, and arranging working capital up front address most of the risk.
