Risks of Buying a Business: Who Should Not Do It

The main risks of buying a business are overpaying for profit that is not real, borrowing more than the cash flow can carry, depending on a seller or customer who leaves, and the personal guarantee that puts your home and savings behind the loan. Most SBA acquisition loans are repaid: one analysis of SBA data found about 2% of change-of-ownership loans were charged off within five years. When a deal fails, though, the owner usually loses far more than the down payment.

The pitch for buying a business is persuasive because much of it is true. A profitable company comes with customers, staff and cash flow, and a lender will finance most of it. What the pitch leaves out is who carries the loss when it goes wrong. With an SBA loan, that person is you.

This page is the counterweight to the rest of the series. Read it before you sign a letter of intent, and again before you sign the loan.

What does a personal guarantee actually mean?

Under SBA rules, "any individual who has direct and/or indirect ownership of 20% or more of an Applicant must provide an unlimited full guaranty" (SOP 50 10 8.1). Spouses' holdings are added together for the 20% test.

Unlimited means the lender can come after your personal assets for whatever the business cannot repay, after it has sold the business's own assets. If the business's collateral does not cover the loan, the SOP says the lender must take available equity in personal real estate owned by 20% owners and guarantors, though it is not required to take a lien on a property with less than 25% equity.

So a buyer who puts $75,000 down on a $750,000 business is not risking $75,000. They are risking the down payment, the equity in their home and their savings, up to the unpaid balance of a $600,000 loan. Outside the US the pattern is similar: under the UK's Growth Guarantee Scheme, the borrower "always remains 100% liable" and lenders can take personal guarantees, though not over your main home.

How often do business acquisitions fail?

There is no good public data on how many acquired small businesses fail. The closest measure is loan performance, which counts loans written off, not owners who struggled for years and sold at a loss.

• SBA 7(a) loans overall. The SBA's own figures put the charge-off rate for regular 7(a) loans at 0.55% in fiscal 2024, measured as charge-offs in the year against the balance outstanding. That is an annual figure across all 7(a) loans, not just acquisitions.
• Acquisition loans. An independent analysis of SBA loan-level data by consultant Kamyar Shah found that 295 of 14,516 change-of-ownership loans, or 2.03%, were charged off within five years of approval, against 3.70% for loans to existing businesses and 4.69% for start-ups. Smaller loans did worse: 2.66% for loans under $150,000 and 3.10% for $150,000 to $500,000. The author notes a charge-off "is a loan outcome, not a business failure."
• Search funds, where professional searchers buy larger companies with investors: Stanford's 2024 study found 31% of acquisitions made a loss, and about a third of those were total losses. 37% of concluded searches never bought a company at all.

Read together: outright default is uncommon, losses are not, and a deal that limps along can cost years of your income without ever showing up as a statistic.

Which risks sink small business buyers?

Overpaying. Paying a high multiple for profit that turns out to include the seller's unpaid hours, one-off contracts or unreported cash. SBA rules cap the debt at the appraised value, but nothing stops you paying more with your own money.

Too much debt. A deal that covers its loan 1.25 times has little room. In the hypothetical deal in our business acquisition calculator, a 20% fall in earnings turns $47,452 of yearly cash for the owner into a $2,548 shortfall. Big private equity faces the same maths: Bain says deals bought at today's prices with borrowing costs of 8% to 9% now need 10% to 12% yearly EBITDA growth to hit their targets, against about 5% in the 2010s.

The seller was the business. Customers, suppliers and staff were loyal to a person. When that person leaves, some revenue leaves too. SBA rules stop the seller staying as an employee in a first acquisition, though they can consult for up to 24 months.

Customer concentration. One customer at 30% of revenue can cancel, cut prices or go bust.

Working capital and surprises. A broken van, a lease renewal at double the rent, a tax bill from the old owner's years. These come out of cash you may not have after the down payment.

You. Running a business is a different job from analysing one. Long hours, staff problems and cash pressure arrive together in the first year.

Rates. SBA variable loans move with Prime, which was 7.00% in October 2026 after a September rate rise. On a $600,000, 10-year loan, a rise from 10% to 11% adds about $4,000 to a year of payments.

Who should not buy a business?

Do not buy a business, at least not yet, if:

• The down payment is money you cannot lose. Your emergency fund, retirement savings, or a loan from family who need it back.
• You have no cushion after closing. You need several months of personal expenses and working capital on top of the down payment.
• Your household cannot live through a bad year. If a 20% drop in profit would mean missing the mortgage, the deal is too big.
• You are looking for passive income. Small businesses are bought with loans that are paid from the owner's work for years.
• You cannot run this kind of business. Lenders check for relevant experience for a reason.
• Your partner has not agreed. A personal guarantee on the family home is a family decision.
• You are being rushed. "Another buyer is ready" is a reason to slow down.

Building savings and skills for two years and then buying well beats buying badly this year.

How do you reduce the risk if you go ahead?

1. Verify everything. Tax returns, bank statements, transcripts. Our due diligence checklist goes through it.
2. Buy on historical cash flow, never on projections. SBA lenders cannot use projections to pass their coverage test.
3. Stress-test the deal. Run the calculator with earnings 20% lower and a rate 2% higher. If the deal fails either test, renegotiate or walk away.
4. Ask for a seller note. A seller who is owed money has a reason to make the handover work.
5. Keep a cash reserve of several months of costs after closing.
6. Get your own advisers. An accountant for the quality of earnings work, an attorney for the purchase agreement and lease. Their fees are small next to the loan.
7. Understand the guarantee before you sign it. Ask your attorney what assets are exposed, and whether a spouse must sign too.

Mistakes and scams to watch for

• Paying for a "deal flow" club or coaching programme you cannot afford. Published prices in October 2026 ran from $2,000 to $12,500. None of them checks the seller's numbers on your deal; your accountant does that.
• "No money down" promises. A first acquisition with an SBA loan needs at least 10% cash, and seller money only counts toward that if it is on full standby for the life of the loan.
• Listings with SDE that only exists in a spreadsheet. If it is not on the tax return, assume it is not there.
• Investing in someone else's deal without seeing the documents. Ask for the purchase agreement, the loan terms and the cap table.

If after all this the risk still looks worth it, you are the buyer this series is written for. The hub at how to do private equity has the full map, and how to finance a business purchase covers the loan you would be guaranteeing.

This is general information, not financial, legal or tax advice. Ask an attorney to explain any personal guarantee and loan agreement before you sign it.