SBA Loan vs. Conventional Loan: Breaking It Down with a $5 Million Example
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TL;DR: On a $5 million acquisition over ten years, the SBA route prices higher than a keen conventional quote, and the rate difference alone costs several hundred thousand dollars in interest. That is not the deciding factor. Eligibility is: a buyer who cannot meet the conventional lender’s equity and credit test does not get to choose the cheaper route, and a buyer who can should be told so before they start an SBA file. Price both before the letter of intent. The rates and terms in full; run your own numbers
Research date: October 2, 2026. First published February 26, 2025. Sources are listed at the end of the post.
There are two common routes to financing a business acquisition: an SBA 7(a) loan or a conventional loan. They differ in cost, in timeline and in the rules attached to the money, so the right one depends on the buyer and the target. This page works one $5 million acquisition through both, so the difference is a figure rather than an impression.
The Setup: A $5 Million Example
Take a $5 million business, financed in full over 10 years. The SBA leg is priced at prime plus 3.00, and the conventional leg at prime plus 0.50. Prime is 7.25% as of September 17, 2026, from the Federal Reserve’s H.15 selected interest rates, which puts the SBA leg at 10.25% and the conventional leg at 7.75%.
Two things this example does not do. It does not net one origination fee against another: fees vary by lender and by file, and a fee quoted without its source is not evidence. It compares interest alone, which is reproducible from the rates above. And it is illustrative, not a quote — actual pricing depends on the lender, the buyer and the target.
The Costs: What You’d Pay
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SBA loan. At 10.25%, the monthly payment is $66,770. Over 10 years that is $8,012,340 paid in total, of which $3,012,340 is interest.
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Conventional loan. At 7.75%, the monthly payment is $60,005. Over the same term that is $7,200,638 paid in total, of which $2,200,638 is interest.
The rate difference alone costs $811,702 more in interest over the ten years. Fees sit on top of both figures and move the comparison in either direction, which is why they are excluded here rather than guessed at.
Every figure above is computed from the published prime rate by the same amortization engine that drives the acquisition loan calculator. When prime moves, this page moves with it. To run your own price, term and structure, use the calculator.
The Trade-Offs: SBA Rules vs. Conventional Ease
Cost is one piece—how you get there matters too. SBA loans have some extra steps, while conventional loans keep it smoother. Here’s the breakdown:
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Source of Funds: SBA loans need your cash—like a down payment—“seasoned” for 90 days, sitting in your account to prove it’s yours. Conventional loans just ask for proof of funds—no waiting. If your money’s ready now, conventional gets you moving faster.
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Closing Time: The SBA route adds steps a conventional file does not have, and those steps take time. How much depends on the quality of the information package and on third parties nobody in the transaction controls, so this page does not publish a day count for either route. How the timeline is actually built sets out what each stage waits on.
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Extra Restrictions: SBA loans come with more hoops—extra paperwork, tighter rules on fund use. Conventional loans cut through that quicker, assuming your finances line up.
A Quick Side-by-Side (for $5 Million)
| What you’re comparing | SBA loan | Conventional loan |
|---|---|---|
| Interest rate | 10.25% | 7.75% |
| Monthly payment | $66,770 | $60,005 |
| Interest over 10 years | $3,012,340 | $2,200,638 |
| Total paid | $8,012,340 | $7,200,638 |
| Source of the equity | Seasoning rules apply | Proof of funds |
Our Take at Duneland Financial
Duneland Financial is an independent capital advisory firm and does not extend credit. We structure the capital stack, prepare the lender package, and run the process to close through a network of banks, credit unions and private credit lenders. Which route a buyer ends up on is the lender’s decision, not ours.
That is the position this section is written from, and it is why the point below is worth making at all. The SBA program is a good instrument for a buyer who needs it. What we see across the files that reach us is an overreliance on it: strong-credit buyers taken down an SBA path when a conventional term loan was available to them, paying a higher rate and a longer timeline for a guaranty their file never needed. Testing both routes before the letter of intent costs a buyer nothing and occasionally saves them a figure of the size shown above.
What This Means for You
On the example above, the conventional route costs less in interest over the ten years and carries no seasoning requirement. If your credit and liquidity support it, that difference stays with you. If they do not, the SBA route exists precisely for that case, and an SBA lender is the right place to take the file.
Your acquisition is probably not $5 million, and the arithmetic changes with the price, the rate and the structure. The method does not: price both routes before you sign the letter of intent, because after it you are negotiating against a clock that is already running. That pricing is the work we do.
Sources
- H.15 selected interest rates — Federal Reserve, the prime rate every figure on this page is computed from
- SOP 50 10 8.1, effective October 1, 2026 — the SBA maximum spread, term and equity rules
- SBA 7(a) loan program
- Twenty-scenario model and methodology — the amortization engine behind the figures
- Comptroller’s Handbook: Commercial Loans — Office of the Comptroller of the Currency, on conventional underwriting
Where to go next
The rates and fees above are illustrative. To run your own numbers, including a seller note, use the DSCR calculator. For the qualification rules behind each route, see non-SBA acquisition financing.