Small SBA Loans Cost More: The Size-Spread Relationship
Data analysis showing how SBA loan size directly affects the spread you pay. Smaller loans carry significantly wider spreads than larger ones.
The Hidden Cost of Small SBA Loans
There's a structural fact about SBA lending that most borrowers don't know until they get their first quote: smaller loans carry wider spreads. This isn't a bug — it's how the economics of lending work. Underwriting a $100K loan costs nearly as much as underwriting a $2M loan, so lenders compensate with higher spreads.
But how much more? We analyzed nearly 900,000 SBA 7(a) approvals to quantify the exact relationship between loan size and pricing.
Median Spread by Loan Size
| Loan Size↑ | Total Deals | Median Spread | Best Rate (P10) | Highest Rate (P90) |
|---|---|---|---|---|
| $0-$150K | 477,956 | P + 2.75% | P + 1.50% | P + 4.75% |
| $150K-$350K | 163,235 | P + 2.50% | P + 1.00% | P + 3.00% |
| $350K-$500K | 60,803 | P + 2.25% | P + 1.00% | P + 2.75% |
| $500K-$1M | 90,119 | P + 2.25% | P + 0.95% | P + 2.75% |
| $1M-$2M | 62,545 | P + 2.00% | P + 0.75% | P + 2.75% |
| $2M-$5M | 41,736 | P + 1.97% | P + 0.50% | P + 2.75% |
See which lenders offer better pricing
LenderHawk shows real spreads from 2,500+ lenders, based on real SBA lending data.
Search Lenders →Deal Volume and Median Spread by Size Band
What This Means
Borrowers seeking loans under $150K face a median spread about 0.75 percentage points wider than borrowers at $1M+ — and among the highest-priced lenders (P90), the gap widens to 2 full percentage points. That translates to thousands of dollars per year in additional interest.
This makes comparison shopping even more important for smaller loans. The spread difference between the best-priced lender (P10) and the median (P50) can save you over 1% — and for a 10-year loan, that's real money.
Find the Best Rate for Your Loan Size
LenderHawk shows you which lenders consistently offer lower spreads in your size range.
Search by Loan Size →Data & Methodology
Source: real SBA lending data, publicly available from sba.gov. Over 1,000,000+ loan approvals analyzed.
Spread methodology: Spread over Prime Rate, calculated from loan approval data. Deal-count-weighted averages are used for lender rankings. This is one component of total cost — fees, terms, and prepayment penalties also matter.
Minimum threshold: Lenders must have at least 10 qualifying deals to appear in named rankings.
Limitations: Data reflects loan approvals, not final terms. Some loans may have been modified after approval. Spread estimates are based on available fields and may not capture all fee structures.
See our full methodology for details.
Frequently Asked Questions
Why do small SBA loans have higher rates?
Fixed underwriting costs are spread across a smaller principal amount. A lender spends nearly the same effort on a $100K loan as a $2M loan, so the per-dollar cost is higher for smaller deals.
What is a good rate for a small SBA loan?
For loans under $150K, a spread at or below the P50 (median) for that size band is competitive. Use LenderHawk to see where specific lenders fall in the spread distribution.