The short answer
An SBA 504 loan is long-term, fixed-rate financing for major fixed assets — buildings, land and long-life equipment. It's made through a Certified Development Company (CDC), a nonprofit authorized and regulated by the SBA, working together with a senior lender such as a bank. The SBA lists the maximum 504 loan amount as $5.5 million, and 10-, 20- and 25-year terms are available. Owners use 504 loans to buy or build the building they operate in instead of renting.
How a 504 project is structured
A 504 project usually has three pieces. The common structure is a first loan from a senior lender, a second loan from the CDC (backed by an SBA-guaranteed debenture), and the owner's equity. A widely used split is 50% / 40% / 10%; startups and special-purpose properties often require more equity. Exact percentages come from the SBA's operating procedures and the lender.
Project cost = senior lender loan + CDC/SBA loan + owner equity
Typical split: 50% + 40% + 10% (higher equity for startups or special-purpose property)
What a 504 loan can finance
According to the SBA, 504 loans can be used for:
- Buying, constructing or renovating buildings or land
- Long-term machinery and equipment with a remaining useful life of at least 10 years
- Refinancing or consolidating qualified debt under the conditions in 13 CFR 120.882
What it can't finance
- Working capital or inventory
- Debt that doesn't meet the SBA's definition of qualified debt
- Speculation or investment in rental real estate — the business generally must occupy the property
Eligibility basics
The SBA says a 504 borrower must be an operating, for-profit business located in the U.S., small under SBA size standards and not an ineligible business type. Other standards include qualified management, a feasible business plan, good character and the ability to repay. 504 loans also carry job-creation or public-policy goals that the CDC will review.
Rates and fees
The CDC portion's rate is pegged to an increment above the current market rate for 10-year U.S. Treasury issues and is fixed for the term. The SBA notes that fees total roughly 3% of the debt and may be financed with the loan. The senior lender's portion has its own rate and terms, which may be fixed or variable.
Worked example (hypothetical)
- Project: buy a $2,000,000 building for your business
- Senior lender (50%): $1,000,000 at 7.5% over 25 years ≈ $7,390 a month
- CDC/SBA loan (40%): $800,000 at 6.5% fixed over 25 years ≈ $5,402 a month
- Owner equity (10%): $200,000 cash at closing
- Combined payment ≈ $12,792 a month, or ≈ $153,500 a year
- Compare: current rent of $14,000 a month — similar cash outlay, but you build equity
- Check DSCR: business cash flow of $230,000 ÷ $153,500 ≈ 1.50x
504 vs. 7(a) for real estate
Both programs can finance owner-occupied real estate. A 504 loan often suits large real estate or long-life equipment projects where a fixed rate on a big portion of the debt and a lower equity requirement matter. A 7(a) loan is more flexible: it can combine real estate with working capital, inventory or a business purchase in one loan. Many acquisitions that include a building use a 7(a) loan for the business and sometimes a 504 loan for the property — run both payments to see what your cash flow supports.
How to start a 504 project
- Get a realistic project budget: price, renovations, closing costs and equipment
- Estimate both loan payments and your combined DSCR
- Confirm the business will occupy the property as the SBA requires
- Talk with a CDC (the SBA lists them by state) and a senior lender, or work with a financing specialist to prepare the package
Questions to ask a CDC and senior lender
Because a 504 loan involves two lenders, ask both the same questions so you can compare the full picture rather than one piece of it.
- What equity percentage will you require for my business and property type?
- What will the senior loan's rate, term and reset schedule be?
- What are total fees on each portion, and which can be financed?
- Are there prepayment penalties on either loan?
- What third-party reports are needed, and who orders them?
- How long do you typically take from application to closing on a project like mine?
Common questions
What is the maximum SBA 504 loan?
The SBA lists the maximum 504 loan amount as $5.5 million. That figure refers to the SBA/CDC portion, not the total project.
Can I use a 504 loan for working capital?
No. The SBA says 504 loans cannot be used for working capital or inventory. A 7(a) loan can.
Do I have to occupy the building?
Yes, 504 loans are for owner-occupied property used by the business, not speculation or investment in rental real estate.
Is the 504 rate fixed?
The CDC portion is fixed and pegged above 10-year Treasury rates. The senior lender's portion has its own terms.
Sources
Next step: see SBA 504 loans: rates, requirements and how they work or use the calculator below.
Model combined real estate and business debtEstimates only. Results vary. No guarantee of approval, rates or savings.
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Examples use hypothetical numbers. Educational content, not financial, legal or tax advice. Profit Theory is not a lender; lenders set their own requirements and make all credit decisions.