What Is an SBA 504 Loan? A Simple Guide

If you’ve spent five minutes researching how to buy a commercial building, you’ve seen it.

SBA 504.

It shows up everywhere because it does one thing better than almost any other loan: it lets a small business buy its own building with a smaller down payment and a long fixed rate.

But most explanations bury that under acronyms. Let’s skip them.

The Short Answer

An SBA 504 loan is a government-backed loan that helps small businesses buy or build the property they operate in.

Instead of one lender, there are two, plus you:

• A bank lends about 50%.
• A Certified Development Company (CDC), a nonprofit lender backed by the SBA, lends about 40%.
• You put in about 10%.

The CDC’s piece carries a long-term fixed rate. That’s the part people love.

How Does the 50/40/10 Split Work?

In the standard setup, a bank funds half, the CDC funds 40%, and the borrower contributes 10%. The CDC portion runs from $25,000 up to $5 million, with some manufacturing and energy projects eligible for $5.5 million, and repays over 10, 20, or 25 years, according to NerdWallet. 

Math time (illustrative):

Our HVAC contractor is buying the $1.2M flex building with a standard 504.

• Bank loan (50%): $600,000
• CDC loan (40%): $480,000
• Contractor’s down payment (10%): $120,000

Two loans, two payments, one building.

The bank’s loan usually comes with its own terms, which can be fixed or variable. The CDC’s loan is fixed for its full term. The rate gets set when the SBA sells the bonds that fund it, so it moves with the market month to month. Ask your CDC for the current number before you run your numbers.

Not every borrower gets 10%. Startups and special-purpose buildings put down more. 

What Can You Use an SBA 504 Loan For?

The 504 is built for long-term assets your business uses:

• Buying an existing building
• Buying land and building from the ground up
• Renovating or expanding a building you own
• Long-life machinery and equipment

What it doesn’t cover: the money can’t go toward working capital or inventory. And it’s not for landlords. The property has to be used mainly by your own business, so rental and investment properties don’t qualify. 

Who Qualifies for an SBA 504 Loan?

Three tests matter most.

1. You have to move in. Your business must occupy at least 51% of an existing building, or 60% of a newly built one, according to CDC New England. 

The rest you can lease out.

Math time (illustrative):

• Building size: 6,000 sq ft
• Contractor must occupy 51%: 3,060 sq ft
• Space they could lease to a tenant: up to 2,940 sq ft

That tenant’s rent helps cover the mortgage. It’s one of the quiet perks of the program.

2. Your business has to be “small” by SBA standards. The SBA’s size test looks at businesses with no more than $15 million in tangible net worth and average net income under $5 million over the last two years. Most small and mid-sized owner-operators clear that easily. 

3. It has to be a for-profit business operating in the U.S. Nonprofits and passive investment companies are out.

What’s the Catch?

There’s always one. Here are the real ones.

You’re locked in for a while. The CDC loan has a prepayment penalty that declines over the first half of the term, which means ten years on a typical real estate loan. It exists because the investors who buy SBA 504 debentures are promised a set return. If you think you’ll sell or refinance in three years, the 504 may be the wrong tool. 

There are fees. The CDC and SBA charge fees on their portion. The good news: those fees can usually be rolled into the loan instead of paid out of pocket. 

Two lenders means two sets of paperwork. The bank and the CDC each underwrite the deal. Expect more documents and more time than a single bank loan.

It’s for owner-users only. We’ve said it twice already. It’s the most common reason people get turned down.

None of these are deal-breakers for a business planning to stay put. All of them are deal-breakers for someone who isn’t.

Recap

• An SBA 504 loan helps small businesses buy or build the property they operate in.
• Standard split: bank 50%, CDC 40%, you 10%.
• The CDC portion is fixed for 10, 20, or 25 years.
• Your business must occupy at least 51% of an existing building (60% for new construction).
• No investment properties, no working capital, no inventory.
• The prepayment penalty runs for half the term, so it’s built for long-term owners.

Final Word

The SBA 504 isn’t a shortcut.

It’s a trade. You get a low down payment and a long fixed rate. In exchange, you commit to the building, and the building commits you to staying.

For a business that plans to be in the same place in ten years, that’s not a catch. That’s the point.

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