If you own the building your business operates in and you’re carrying a conventional commercial mortgage with a balloon payment coming due, the SBA 504 refinance program is worth a serious look. Most business owners I talk to don’t realize it exists — they assume the 504 is only for purchasing real estate, not refinancing what you already own. It does both.
Here’s a straightforward breakdown of how the SBA 504 refinance works, who qualifies, what it costs, and when it makes sense versus staying conventional.
What You’ll Learn
- How the SBA 504 refinance differs from a standard commercial refi
- Eligibility rules: occupancy, debt age, and original loan requirements
- Current rate ranges and how they compare to conventional terms
- The cash-out equity option and what it can be used for
- The two-lender structure and what to expect on timeline
- When the 504 refi is the right move — and when it isn’t
What Is the SBA 504 Refinance Program?
The SBA 504 refinance program allows business owners who occupy their commercial real estate to refinance existing mortgage debt into a long-term, fixed-rate SBA-backed structure. The SBA authorizes Certified Development Companies (CDCs) — nonprofit intermediaries — to originate the SBA-backed portion of these loans under the 504 program.
The structure mirrors a 504 purchase loan: a conventional first mortgage from a bank covers roughly 50% of the project, a CDC-originated SBA debenture covers up to 40%, and the borrower contributes a minimum 10% equity. For refinances, your existing equity in the property typically satisfies that contribution.
The big draw is the CDC debenture portion. The SBA sells these in pools on the capital markets, which is how borrowers access fixed rates tied to current Treasury yields — not a bank’s cost of funds. That’s why the SBA 504 program consistently offers some of the lowest long-term fixed rates available for owner-occupied commercial real estate.
Who Qualifies for an SBA 504 Refinance?
The eligibility rules are specific. Here’s what the SBA requires:
Business requirements:
- Operates as a for-profit business in the United States
- Net worth under $20 million and average net income under $6.5 million (SBA size standards)
- In business for at least 2 years at the time of application
Property requirements:
- Owner-occupied — your business must occupy at least 51% of the rentable square footage
- Commercial real estate: office, retail, industrial, warehouse, or flex space (not investment property)
Debt eligibility:
- The loan being refinanced must be at least 6 months old
- At least 85% of the original loan proceeds must have gone toward an SBA 504-eligible purpose — typically purchasing or improving the property
- The loan cannot be currently delinquent or have been delinquent in the prior 12 months
Financial benchmarks most lenders target:
- DSCR of 1.15 or better
- Credit score 680+
- Clean federal tax record — no outstanding federal judgments or delinquencies
One thing that trips people up: if your original mortgage used some proceeds for working capital or non-real estate purposes, that may disqualify the loan from refinance eligibility. The 85% rule applies to the original loan’s use of proceeds — not just what the property is worth today.
Current SBA 504 Refinance Rates (Mid-2026)
As of June 2026, SBA 504 refinance debenture rates are running approximately:
| Term | Fixed Rate (Approx.) |
|---|---|
| 25-year | 6.11% |
| 20-year | 6.16% |
| 10-year | 5.88% |
These are the CDC debenture rates — the rate on the SBA-backed second piece. The bank first mortgage carries a separate rate, often floating or fixed at a shorter term. The blended effective rate on the full financing typically runs 20-50bps above the debenture rate once both tranches are combined.
Compare that to conventional 5-7 year balloon commercial mortgages, which are pricing in the 6.75-7.5% range in mid-2026 with 5-year balloon maturities. The 504 gives you a true 25-year fixed on the SBA piece with no balloon. For a business owner who values predictability and doesn’t want to refinance every five years, that’s a real structural advantage.
The Cash-Out Option: Using Your Equity for Business Expenses
This is the feature most borrowers miss. If your property has appreciated since you bought it, you can access up to 20% of the appraised value through an SBA 504 refinance for what the SBA calls “eligible business expenses.”
Eligible uses include wages, rent on other business locations, utilities, inventory, and operating costs incurred but not yet paid or due within 18 months of application. What’s not eligible: capital expenditures, paying off other business debt, and business credit card balances.
The cash-out is capped at an 85% combined LTV. So if your building appraises at $2 million and you owe $1.2 million, you may be able to refinance the $1.2 million and pull up to $400,000 in additional proceeds — as long as total financing stays at or below $1.7 million (85% of $2M). According to Pursuit Lending’s updated 2026 guidance, the SBA has also removed the prior 20% cap on the business expense portion, giving borrowers more flexibility than earlier versions of the program.
From a recent deal: I worked with a manufacturing business owner in the Hartford area who’d bought his building in 2019 on a conventional loan that was now ballooning. The property had appraised up meaningfully since purchase, and the business was carrying a working capital shortfall after a supply chain disruption. We structured a 504 refinance that retired the balloon, locked in a 25-year fixed rate, and pulled roughly $280,000 in equity for operating cash. The blended rate landed around 6.4% — a material improvement from the variable-rate exposure he’d been facing. From complete application to closing took about 75 days.
Carrying a commercial mortgage balloon coming due? We can run the 504 refi numbers alongside a conventional option and give you a direct comparison. Schedule a call →
The Two-Lender Structure: What to Expect
SBA 504 refinances involve two lenders: a bank for the first mortgage and a CDC for the SBA debenture. The CDC is typically your primary contact — they coordinate SBA approval, underwriting, and debenture funding.
Here’s how the money moves at closing:
- The bank closes on its first mortgage and funds at the closing table
- The CDC closes simultaneously, but the SBA debenture is not funded at closing — the CDC issues interim financing to bridge the gap
- The CDC pools the debenture with others and sells it through the SBA’s guaranteed debenture program
- Sale proceeds pay off the CDC interim loan and lock in the borrower’s long-term fixed rate
This two-step process is standard for all 504 loans and explains the 60-90 day timeline from a complete application. It’s not right if you have a balloon maturing in 30 days, but for most business owners who are planning ahead, the timeline is manageable.
For a side-by-side comparison of 504 vs. the SBA’s other flagship program, see our breakdown of SBA 7(a) loans for commercial real estate. The 7(a) can also refinance owner-occupied property and moves somewhat faster, though typically at floating rates and shorter amortization.
Documents You’ll Need
For a 504 refinance, be ready with:
- The existing recorded mortgage and deed, including any amendments
- 12 months of mortgage payment statements
- 3 years of business tax returns
- 3 years of personal tax returns for any principal owning 20%+
- Current business financial statements (P&L, balance sheet)
- Current rent roll if any portion of the property is leased to a third party
- A current appraisal (ordered by the CDC or bank during underwriting)
- Documentation of eligible business expenses, if taking cash-out
Showing up with a complete package from day one is the single biggest thing you can do to keep the 60-day timeline from stretching to 120.
When the 504 Refi Is the Right Move — and When It Isn’t
Good fit:
- You have a balloon payment coming due in 3-12 months
- You want to lock a long-term fixed rate and eliminate refinancing risk
- Your property has appreciated and you want tax-efficient equity for business use
- You’re on a variable-rate commercial mortgage and want rate certainty
Not the right fit:
- You need to close in under 60 days — a conventional refi will move faster
- Your business occupies less than 51% of the property
- The original loan didn’t use at least 85% of proceeds on the property
- You want to use cash-out for capital expenditures — a conventional cash-out refinance on commercial property may be more flexible on use of funds
- Your business has significant recent losses on tax returns — the DSCR requirements are firm
The 504 refinance is a specific tool for a specific situation. When it fits, it’s genuinely one of the better financing structures available to a small business owner. When it doesn’t, there’s no point forcing it.
Frequently Asked Questions
Can I refinance an existing SBA 504 or SBA 7(a) loan with a new 504?
Yes. The program explicitly allows refinancing of existing SBA 7(a) and SBA 504 debt. The same 6-month seasoning requirement and 85% eligible-use test apply.
Can I refinance if I have tenants in part of my building?
Yes, as long as your business occupies at least 51% of the rentable square footage. Partial tenant occupancy is common in mixed-use owner-occupied properties.
How is the SBA 504 refinance rate set?
The CDC debenture rate is set at debenture funding — after closing — based on the 10-year or 20-year Treasury yield plus a spread. CDCs can provide a close estimate based on current market rates before you commit.
What’s the maximum loan amount for a 504 refinance?
The SBA 504 maximum is $5.5 million per borrower for standard projects, with higher limits available for certain energy-efficient or manufacturing projects. The bank first mortgage has no SBA cap.
Ready to Run the Numbers on a 504 Refinance?
We work with SBA 504 borrowers nationally across most property types — office, retail, warehouse, flex, and industrial. If you’re carrying a balloon or a variable-rate commercial mortgage and want to see how the 504 stacks up against a conventional refi, send us your scenario. We’ll respond within one business day with realistic terms.
Get a Quote → | Call (860) 999-7539
This article is for informational purposes only and does not constitute financial, legal, or tax advice. Loan terms, rates, and availability vary by borrower, property, and market conditions. Consult Willowbrook Capital for scenario-specific guidance.
