Why This Comparison Matters
Many borrowers compare SBA to conventional on rate alone and miss the bigger picture. Conventional rates can be 0.5-1.5% lower than SBA — but conventional loans typically require 25-40% down (vs 10% SBA), don't finance goodwill, and balloon every 5-10 years. For most small business owners, the SBA's structural advantages outweigh a rate premium.
Side-by-Side
| Factor | SBA | Conventional Commercial |
|---|---|---|
| Typical rate | Prime + 2.25% (7a) or 5.5-6.5% (504 CDC) | 6.5-8.5% depending on lender and risk |
| Down payment (CRE) | 10% (504) or 10-15% (7a) | 25-40% |
| Down payment (business acq) | 10% | 40-50% if available at all |
| Goodwill financing | 100% (7a) | 0-50% typical cap |
| Max term | 25 years | Often balloon at 5-10 years |
| Fully amortizing? | Yes | Usually no (balloon) |
| Working capital | Yes (7a) | Rare for small businesses |
| Closing time | 45-90 days | 30-60 days |
| Fees | SBA guarantee fee 1.7-3.75% | Bank origination 1-2% |
| Prepayment penalty | None on 7(a); declining on 504 | Often yield maintenance or 3-5% penalty |
| Approval certainty | Higher (SBA guarantee derisks lender) | Lower for smaller / less-collateralized deals |
When SBA Wins
- You don't have 25-40% to put down. The SBA's 10-15% down payment is the single biggest reason most small business owners use it.
- Goodwill is a significant portion of the deal. Service businesses, healthcare practices, restaurants, and most acquisitions have 60-90% goodwill. Only the SBA finances this.
- You want long-term rate certainty. 25-year fixed (504) or 25-year amortization without balloon (7a) protect against rate volatility.
- You're acquiring a business with thin collateral. Conventional banks need hard collateral. SBA can lend against cash flow + guarantee.
When Conventional Wins
- You have substantial equity to inject (25%+) and want the lowest absolute rate.
- You need to close in 30 days and the deal is structurally clean (strong collateral, strong borrower).
- You want a line of credit as part of the package — SBA term loans don't include revolvers (use SBA Express CAPLines as alternative).
- The deal is too large for SBA — over $5M (7a) or over the 504 stack capacity.
- You're refinancing an SBA-ineligible debt structure like a multi-property investment portfolio.
The Real Math: A $2M CRE Example
Buying a $2M owner-occupied commercial building, comparing the two structures:
- Conventional: $600K down (30%), $1.4M loan at 7.5% over 25 years with 10-year reset. Monthly P&I: $10,348. Rate risk at year 10.
- SBA 504: $200K down (10%), $1M bank first at 7.25% / 25yr + $800K CDC at 6% fixed / 25yr. Monthly P&I: ~$12,375 combined. Zero rate risk on CDC portion.
SBA payment is $2,000/month higher, but the borrower saves $400K in down payment and locks $800K of debt for 25 years fixed. Over a 10-year hold the SBA structure usually wins on total cost of capital, especially if rates rise.
The hidden cost most borrowers miss: conventional CRE loans typically reset every 5-10 years. If rates rise 2% during your hold, you're refinancing into a much higher payment — or worse, finding new financing in a tight credit market. SBA's 25-year amortization eliminates this entirely.
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