The short answer: To buy a business, use the 7(a). It finances goodwill, working capital, and intangibles, the bulk of what you're actually paying for. The 504 is a fixed-asset loan for commercial real estate and heavy equipment, structured as a bank loan plus a CDC/SBA debenture with about 10% borrower equity. It can't fund goodwill or working capital, so it's the wrong tool for a straight acquisition. Compare with a conventional loan if you have the collateral.
Two programs, two jobs
The names look similar and both carry an SBA guarantee, but they were built for different purchases.
The 7(a) is the SBA's flexible, general-purpose loan. One loan can cover a business acquisition, working capital, inventory, and even some real estate, which is exactly why it dominates business buying. See the 7(a) acquisition guide for the full walkthrough.
The 504 is a specialized loan for long-term fixed assets: buying or building commercial real estate, or purchasing large, long-life equipment. It is not designed to buy a business's goodwill the way a 7(a) is, and it can't be used for working capital.
The 7(a) buys the business. The 504 buys the building.
How each one is put together
The 504's two-part structure is its defining feature. Instead of one loan, you get a first-position bank loan and a second-position debenture from a Certified Development Company (CDC) that the SBA backs.
| Piece | Share of project | Who provides it |
|---|---|---|
| First mortgage | ~50% | Bank / conventional lender |
| CDC / SBA debenture | ~40% | CDC, backed by SBA |
| Borrower equity | ~10% | You |
A 7(a), by contrast, is a single loan from one lender, simpler to manage, and it can bundle all the pieces of an acquisition into one payment.
504 vs 7(a), side by side
| Factor | SBA 7(a) | SBA 504 |
|---|---|---|
| Best for | Buying a business (goodwill, working capital) | Real estate & heavy equipment |
| Finances goodwill/intangibles? | Yes | No |
| Working capital? | Yes | No |
| Structure | One loan, one lender | Bank loan + CDC/SBA debenture |
| Borrower down / equity | 10% minimum injection | ~10% equity |
| Max loan | $5,000,000 | Larger for fixed assets (per SBA limits) |
| Term | 10 yr (25 w/ real estate) | Long, 10 to 25 yr on fixed assets |
| Rate type | Usually variable | Debenture portion often fixed |
Which one for buying a business?
Line it up against what a typical acquisition actually consists of. Most of the price of a small business is goodwill, the customers, cash flow, and reputation, not hard assets. Only the 7(a) can finance that, plus the working capital you need to run the company on day one.
Use the 7(a) when…
- You're buying a business, especially a service, e-commerce, or agency deal that's mostly goodwill.
- You need working capital rolled into the loan.
- You want one loan and one lender.
Use the 504 when…
- The purchase is real estate, buying the building the business operates from.
- You're financing major long-life equipment.
- You want a long, often fixed-rate loan on those fixed assets.
You can use both
A common combo: a 7(a) to buy the operating business and its goodwill, plus a 504 to buy the real estate it sits on. Different tools for different parts of the same deal.
Model the acquisition
See the 7(a) payment and what you can afford to pay for the business.
Frequently asked questions
For buying a business, the 7(a) is almost always right. It can finance goodwill, working capital, and the intangible value that makes up most of a business's price. The 504 is built for real estate and heavy equipment, not for buying a company's goodwill.
A 7(a) is a single flexible loan that can fund an acquisition, working capital, and inventory. A 504 is a two-part structure, a bank loan plus a CDC/SBA debenture, designed for long-term fixed assets like real estate and large equipment, with about 10% borrower equity.
No. The 504 funds fixed assets, real estate and equipment, not goodwill or working capital. If a deal is mostly goodwill, as most business acquisitions are, the 7(a) is the tool that fits.
A 504 project typically needs about 10% borrower equity, and a 7(a) change-of-ownership deal needs a minimum 10% injection. The percentages are similar, but they apply to different purchases, fixed assets for the 504, the whole business for the 7(a).
Sources
- 7(a) uses (acquisition, working capital, goodwill), $5M cap, and 10% injection, sba.gov 7(a) program; SBA SOP 50 10 8 (effective June 1, 2025).
- 504 structure (bank loan + CDC/SBA debenture, ~10% equity, fixed-asset use), sba.gov loan programs; SBA 504/CDC program materials (2025 to 2026).
