By Tera Loans Editorial · Published June 18, 2026
SBA 504 Loans: How They Work and Who Qualifies
An SBA 504 loan funds owner-occupied real estate and heavy equipment with low fixed rates and 10% down. See how the structure works, who qualifies, and the real costs.
An SBA 504 loan is a fixed-asset loan that lets a business buy owner-occupied real estate or major equipment with as little as 10% down. It uses a three-part structure: a bank funds ~50%, a Certified Development Company (CDC) funds ~40% with a government-backed, long-term fixed rate, and you contribute ~10%. Terms run 10, 20, or 25 years.
If your business is outgrowing its leased space or you're pouring money into someone else's building, the SBA 504 program is one of the most powerful tools in small-business finance. It's purpose-built for the moment a company stops renting and starts owning — or makes a heavy, long-life equipment purchase. The tradeoff is a slower, more documentation-heavy process. Here's exactly how it works and whether you qualify.
The short answer
An SBA 504 loan finances owner-occupied commercial real estate and heavy equipment with ~10% down, long terms (10/20/25 years), and a below-market fixed rate on the CDC portion. It's ideal for buying or building a facility you operate from — not for working capital. Expect weeks of underwriting in exchange for the lowest long-term cost.
How does an SBA 504 loan actually work?
The defining feature of the 504 program is its split structure. Unlike a single loan, a 504 deal stacks three pieces of money on the same project:
The bank loan (~50%)
A conventional lender — usually a bank or credit union — provides roughly half the project cost as a first-lien loan. This portion is on standard commercial terms and is not guaranteed by the SBA.
The CDC / SBA debenture (~40%)
A Certified Development Company, a nonprofit licensed by the SBA, provides about 40% as a second-lien loan backed by a 100% SBA-guaranteed debenture. This is where the long term and low fixed rate come from — the rate is set when the debenture is sold to investors and is locked for the life of the loan.
Your down payment (~10%)
You inject roughly 10% of the total project cost as equity. This rises to 15% for startups under two years old and 20% for special-purpose properties — and 20% when both conditions apply.
That 50/40/10 split is the standard case. Because the SBA-backed piece sits in second position, the bank takes on less risk, which is what makes the low down payment possible. SBA sets the program guidelines, but individual lenders and CDCs add their own overlays on credit, cash flow, and project type.
What can — and can't — an SBA 504 loan pay for?
The 504 program is narrow on purpose. It exists to finance long-life fixed assets that help a business grow and create or retain jobs.
Pros
- Buying an existing commercial building you'll occupy
- Ground-up construction of an owner-occupied facility
- Major renovations or building improvements
- Heavy machinery and equipment with a 10+ year life
- Soft costs tied to the project (some fees, appraisals)
- Limited refinancing of qualifying 504-eligible debt
Cons
- Working capital or day-to-day operating cash
- Inventory or supplies
- General debt consolidation
- Goodwill in many acquisition scenarios
- Investment or rental real estate you won't occupy
The occupancy rule is critical: for an existing building you must occupy at least 51% of the space, and for new construction at least 60% (with a plan to reach occupancy of more over time). If you need cash for operations or inventory, look at working capital or a business line of credit instead — and for standalone gear, plain equipment financing is often faster.
Who qualifies for an SBA 504 loan?
Eligibility runs on two tracks: the SBA's program rules and the lender's own underwriting. You generally need to clear both.
| Requirement | Typical standard |
|---|---|
| Business type | For-profit, operating in the U.S. |
| Size | Tangible net worth under $20M; avg. net income under $6.5M (2 yrs) |
| Owner occupancy | 51%+ of existing space, 60%+ for new construction |
| Personal credit | High 600s+ at most lenders (overlay, not an SBA rule) |
| Time in business | 2+ years preferred; startups face higher down payment |
| Use of funds | Owner-occupied real estate or long-life equipment |
| Job creation | Meet a job-creation or public-policy goal (CDC tracks this) |
There's no single magic credit score because the SBA sets guidelines and individual lenders add overlays. What consistently matters: documented repayment ability, a reasonable debt-service coverage ratio, owner equity in the deal, and a clean recent credit history. A personal guarantee from anyone owning 20% or more of the business is standard.
The job-creation angle
The 504 program is tied to economic development, so your CDC will look at jobs. The common benchmark is creating or retaining one job per a set dollar amount of the SBA debenture — but if your project doesn't hit that, it can still qualify by meeting a public-policy goal (e.g., rural development, energy efficiency, or being a veteran- or minority-owned business). Your CDC handles this analysis.
What does an SBA 504 loan cost?
The headline appeal is the fixed rate on the CDC portion, which is typically below conventional commercial real estate financing. But the all-in cost has three parts: the bank's rate on its ~50%, the CDC debenture rate on its ~40%, and program fees that are usually financed into the loan.
| Feature | SBA 504 | SBA 7(a) | Conventional CRE loan |
|---|---|---|---|
| Down payment | ~10% | ~10-15% | 20-30% |
| Rate type (real estate) | Fixed on CDC portion | Often variable | Fixed or variable |
| Max term | 25 years | 25 years | 5-20 years (often balloons) |
| Best for | Owner-occupied RE & equipment | Flexible / mixed uses | Strong-credit buyers w/ cash |
| Speed | Weeks (slowest) | Weeks | Days to weeks |
Fees on the 504 typically include a CDC processing fee, an SBA guarantee fee on the debenture, and standard closing costs (appraisal, environmental, legal, title). Most are rolled into the loan, so your out-of-pocket is largely the down payment. The long amortization keeps monthly payments low — the whole point of stretching real estate over 20 or 25 years.
Estimate your monthly payment
A representative estimate at 6%–9% APR. Actual rates and terms vary by business and product.
Run your own project numbers above, or use the full payment calculator to compare a 504 structure against a conventional term loan.
SBA 504 vs. 7(a): which should you choose?
Both are flagship SBA programs, but they solve different problems. Choose the 504 when your need is a specific fixed asset and you want the longest term at the lowest fixed cost. Choose the 7(a) when you need flexibility — working capital, a business acquisition, inventory, or a mix of uses — and can accept a usually-variable rate.
A quick decision rule
If the entire use of funds is "buy or build the building (or equipment) I operate from," the 504 almost always wins on cost. The moment you need to mix in working capital, inventory, or refinancing of general debt, the 7(a) is the more practical single-loan path. Many growing businesses end up using both over time.
Is the slower process worth it?
The honest tradeoff: a 504 loan takes weeks, sometimes a couple of months, because you're underwriting through both a bank and a CDC, plus appraisals and environmental reviews on real estate. If you need money in days, this isn't your product — look at fast working capital or equipment financing. But if you're making a generational decision to own your space, the combination of 10% down and a locked, long-term fixed rate is hard to beat, and the patience usually pays for itself many times over.
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