USDA B&I vs SBA 504 for a rural facility: which to start with, and when to run both

Put a manufacturing plant or a processing facility in a small town and two federal programmes may both be worth a call: the USDA Business & Industry guaranteed loan and the SBA 504 loan. They are not asking the same question of your project, and which question you pass decides more than any rate.

We place both, so we have no reason to steer you to one. Every figure and quotation below was fetched from the source linked beside it on 22 September 2026 and is what that source said on that date. Where a regulation is cited from eCFR, its “up to date as of” date is given where the page is first cited.

The two tests are different in kind

B&I asks where the project is. USDA Rural Development’s Business and Industry Guaranteed Loan page describes eligible areas as “Rural areas not in a city or town with a population of more than 50,000 inhabitants,” and adds that the borrower’s headquarters may be based within a larger city as long as the project is located in an eligible rural area. The regulation is fuller. 7 CFR 5001.3, up to date on eCFR as of 17 September 2026, defines a rural area as one “not in a city or town that has a population of more than 50,000 inhabitants,” according to the latest decennial census, “and not in the urbanized area contiguous and adjacent to” such a city or town. That second half catches the suburb that is small on paper but sits against a large city. The test attaches to an address, not to your company. We walk through how to check an address in our guide to the B&I rural test.

504 asks how much of the building you will use. 13 CFR 120.131, up to date on eCFR as of 18 September 2026, sets an occupancy rule that applies whether the SBA financing is 7(a) or 504. For an existing building, the borrower may permanently lease up to 49 percent of the rentable property if it permanently occupies and uses no less than 51 percent. For new construction, the borrower may permanently lease up to 20 percent if it occupies no less than 60 percent, with plans to occupy some of the remaining space within three years and all of it within ten.

Two consequences follow. A project inside a large city will generally fail the B&I location test, however strong the business. And a building you mainly intend to lease to others fails the 504 occupancy rule, however rural it is — SBA’s 504 loans page also lists “speculation or investment in rental real estate” among the things 504 cannot fund.

If your project is rural and mostly owner-occupied, you pass both tests. That is when the rest of this comparison matters.

Term length: up to 40 years against fixed 10, 20 or 25

USDA’s programme page states: “The loan term will not exceed 40 years.” The regulation qualifies that ceiling. 7 CFR 5001.402, up to date on eCFR as of 17 September 2026, limits final maturity to “the justified useful life of the project or assets used as collateral but may not exceed 40 years or limitations in the applicable State statute, whichever is less.” So 40 years is a cap tied to what the money buys, not a term every B&I loan receives. On rate, § 5001.401 allows B&I interest to be “fixed or variable, or a combination thereof,” and USDA’s page says rates are negotiated between the lender and borrower.

SBA’s 504 page describes the programme as “long-term, fixed rate financing for major fixed assets that promote business growth and job creation,” and lists 10-, 20- and 25-year maturity terms as available. The maturities are set by notice rather than written into the regulation: 13 CFR 120.933 says SBA publishes the available maturities in the Federal Register and that they remain in effect until changed by a later publication. The notice of 4 April 2018 states that the available terms “have been 10 and 20 years since 1986,” and made a 25-year debenture available for 504 projects approved on or after 2 April 2018.

The practical reading: B&I can stretch amortisation further on long-lived assets, which lowers the payment, and lets you and the lender choose the rate structure; 504 offers a shorter menu of fixed maturities from a programme SBA itself describes as fixed-rate. Which is worth more depends on whether your constraint is monthly cash flow or interest-rate exposure.

The guarantee structure, and who it protects

B&I is a lender’s loan with a federal guarantee on part of it. USDA’s page says the programme “offers loan guarantees to lenders for their loans to rural businesses.” USDA’s fiscal year 2026 OneRD notice, published in the Federal Register on 9 March 2026 with fees effective 1 October 2025, sets these B&I terms:

B&I loan size (FY2026)	Guarantee	Guarantee fee	Annual retention fee
Less than $5 million	85%	3.0%	0.55%
$5 million to $25 million	80%	3.0%	0.55%

These are fiscal-year figures, so confirm the notice in force when you apply. USDA’s page adds that the lender “may be located anywhere in the United States,” so the bank does not have to be in your town.

504 is a bank loan and a CDC loan side by side. SBA’s CDC/504 lender page describes a private-sector loan with a senior lien, a loan from a Certified Development Company “backed by a … SBA-guaranteed debenture” with a junior lien, and an equity contribution from the borrower. The regulations set the proportions. 13 CFR 120.920, up to date as of 17 September 2026, requires third-party loans “totaling at least as much as the 504 loan,” and at least 50 percent of total project cost where the business has operated for two years or less or the project is a limited or single purpose asset. 13 CFR 120.910, up to date as of 18 September 2026, sets the borrower’s contribution at:

• at least 10 percent of project cost in ordinary cases;
• at least 15 percent if the business has operated for two years or less, or the project is a limited or single purpose building;
• at least 20 percent if both apply.

So be clear about who each guarantee is for. B&I’s protects the lender on the guaranteed share of its loan. 504’s sits on the debenture that funds the CDC’s junior piece; the bank’s senior loan is a separate loan. What a guarantee changes is the lender’s appetite: a bank may lend at a leverage it would not accept alone with most of its exposure guaranteed (B&I), or with a CDC taking the junior position behind it (504).

Eligible uses side by side

	USDA B&I	SBA 504
Land and buildings	Purchase and development of land, buildings and associated infrastructure for commercial or industrial properties	Purchase, construction or renovation of existing buildings or land
Machinery and equipment	Purchase of machinery and equipment	Long-term machinery and equipment, subject to a minimum remaining useful life set on SBA’s page
Working capital and inventory	Eligible, as a permanent working capital term loan	Not eligible
Business acquisition	Eligible, provided that jobs will be created or saved	Not on SBA’s list of 504 uses
Refinancing	Refinancing, under the conditions in § 5001.102(d)	Qualified debt consolidation and refinancing
Housing and rental property	Owner-occupied and rental housing ineligible	Speculation or investment in rental real estate ineligible

The B&I column comes from 7 CFR 5001.121, except the housing row, which is from USDA’s programme page; the 504 column is from SBA’s 504 page.

Who can borrow differs too. USDA lists for-profit and non-profit businesses, cooperatives, federally recognised tribes, public bodies, and individuals engaged or proposing to engage in a business as eligible B&I borrowers. SBA’s 504 page requires the business to operate for profit, be located in the US and be small under SBA size requirements. A rural non-profit therefore has a B&I path and not a 504 one.

Loan size

7 CFR 5001.406, up to date as of 17 September 2026, caps total B&I guaranteed loans to a borrower at $25 million, with up to $40 million possible for rural cooperatives that process value-added agricultural commodities.

The 504 ceiling depends on the project. 13 CFR 120.931, up to date as of 17 September 2026, limits 504 loans to an outstanding balance of $5,000,000 for each borrower and its affiliates, and $5,500,000 for each project only in three cases: small manufacturers (NAICS 31–33) with all production facilities in the United States; projects that reduce energy consumption by at least 10 percent; and certain renewable energy and renewable fuel projects.

Which one to start with

This is judgement, not regulation, but it is the order we would work in.

Start with 504 if the business will occupy most of the building, the project is mainly real estate and long-life equipment, and the business is established enough to qualify for the lowest equity tier. For a straightforward owner-occupied purchase, the low equity requirement is hard to beat. If you are also weighing 7(a), our 504 vs 7(a) comparison covers that choice.

Start with B&I if the project is rural and any of these apply: you need working capital or inventory inside the same facility; you are buying a business rather than a building; the borrower is a non-profit; or the financing need is larger than the 504 limits above. The longer maximum term also helps when early cash flow is tight.

Run both in parallel if the project passes both tests and the answer is not obvious. The quotes will differ on rate type, term, equity and fees, and those differences only become real once a lender prices your deal. Duplicated paperwork costs less than months lost on the wrong one.

Neither fits if the project is inside a large city and you will lease out most of it. That is an investor property and needs a different kind of capital — conventional debt, or, if the scope includes energy or resilience upgrades, possibly C-PACE.

What to have ready

Bring the project address (it settles the B&I location test), the share of the space the business will occupy (it settles the 504 occupancy test), how long the business has operated and what kind of building it is (they set the 504 equity tier), the cost split between land, building, equipment and working capital, and recent financials.

We can tell you in one call which programme your project fits and put it in front of lenders who write that paper. Read more on USDA B&I and SBA 504, or send us the project.