SBA Loan vs. Conventional Loan: Breaking It Down with a $5 Million Example
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TL;DR: Compare SBA and conventional acquisition loans using the same principal, payment period and cost definitions, then test whether either structure is available for the actual deal. A lower modeled rate does not establish a better available offer. Equity, eligibility, collateral, fees, maturity and repayment capacity can change the comparison. Compare the financing requirements.
Research date: October 6, 2026. First published February 26, 2025. The rate observation used below is dated separately.
What does this $5 million example compare?
This is a $5 million loan-principal comparison, not a proposal to finance 100% of a $5 million business purchase. Both legs amortize over 10 years. For an SBA Initial Acquisition, the current minimum equity injection is 10% of total project cost; a $5 million purchase and a $5 million acquisition loan are not interchangeable assumptions. How project cost and equity interact.
The selected pricing assumptions are prime plus 3.00 percentage points for the SBA illustration and prime plus 0.50 for the conventional illustration. The conventional spread is an assumption chosen for comparison, not an available quote, market average or Duneland offer.
The base rate is 7.00%, observed as of October 2, 2026 in the Federal Reserve’s H.15 release. This produces illustrated rates of 10.00% and 7.50%.
The model holds each illustrated rate constant for the whole term. A real variable-rate loan can reprice. This calculation neither forecasts future prime rates nor reproduces an actual fixed-rate offer. The SBA example uses the spread listed for loans above $350,000 under the SOP’s variable-rate caps; fixed-rate limits are separate.
Payments and interest under those assumptions
| Measure | SBA illustration | Conventional illustration |
|---|---|---|
| Principal | $5,000,000 | $5,000,000 |
| Annual note rate held constant | 10.00% | 7.50% |
| Monthly payment | $66,075 | $59,351 |
| Interest over 10 years | $2,929,044 | $2,122,106 |
| Principal and interest paid | $7,929,044 | $7,122,106 |
The modeled interest difference is $806,939. It results from the selected rate difference; it is not evidence that conventional financing is always cheaper.
Fees, taxes, closing expenses, prepayments and changes in rates are excluded. The displayed rate is a note rate, not APR, and the totals are not total acquisition costs. The figures use the same amortization engine as the acquisition loan calculator and update when the site’s dated assumptions are refreshed. They are not historical quotes from this post’s original publication date.
Which terms should you compare beyond rate?
| Question | Why it changes the decision |
|---|---|
| How much equity and post-close liquidity are required? | Equal loan principal can require different amounts of buyer cash |
| What is the loan maturity as well as amortization? | A lower monthly payment may leave a balloon due sooner |
| Is the rate fixed or variable, and when does it reset? | A constant-rate illustration cannot show repricing risk |
| Which fees and prepayment terms apply? | Interest alone does not measure the total financing cost |
| What collateral and personal guarantees are required? | Similar payments can involve different obligations |
| What conditions remain before closing? | A preliminary indication is not a funding commitment |
SBA 7(a) has program rules as well as lender underwriting. Conventional lenders have their own policies; “non-SBA” does not mean unrestricted or automatically faster. Compare written terms and outstanding conditions for the same transaction.
Does SBA require cash to sit in an account for 90 days?
Do not rely on a blanket waiting-period statement. The question is whether the source, availability and injection of the funds satisfy the applicable requirements. Appendix 15 of the current SOP distinguishes permitted sources, limited sources and standby treatment. Ask the lender which records and history it requires for your contribution.
The earlier version of this article described a universal 90-day seasoning requirement and contrasted it with “no waiting” for conventional loans. Neither is a reliable description of every file. Conventional lenders also need satisfactory evidence of the funding source and availability.
See equity injection evidence and proof of funds.
Which route fits the acquisition?
The SBA 7(a) overview lists creditworthiness, repayment ability and inability to obtain the desired credit on reasonable terms from non-government sources among eligibility considerations. A buyer must meet the program and lender requirements; SBA financing is not simply the default when another lender declines.
A conventional quote must also be evaluated for the buyer, business and terms. Use the SBA versus conventional guide to compare the financing questions, then bring the transaction for review. Duneland advises on the structure and process; lenders decide whether to extend credit.
Sources
- Federal Reserve H.15 — bank prime observation. The observation date is shown with the model above.
- SBA SOP 50 10 8.1 technical policy updates, effective October 1, 2026 — Appendix 18, variable-rate caps; Appendix 15, acquisition equity, source and term requirements.
- SBA 7(a) program overview — eligibility, maximum loan amount and lender application process.
- Loan calculator — payment methodology and term/amortization inputs.