By GFB Loans Editorial · Published June 21, 2026
SBA 504 Loan: Real Estate & Equipment Financing Guide
How the SBA 504 loan lets owners buy commercial real estate or heavy equipment with as little as 10% down at a low, long-term fixed rate — structure, terms, and how to qualify.
The SBA 504 loan finances major fixed assets — owner-occupied commercial real estate and heavy equipment — with as little as 10% down at a low, long-term fixed rate. It's structured as a partnership: a bank funds ~50%, a Certified Development Company (CDC) funds ~40% with an SBA-backed debenture, and you contribute ~10%. For buying the building you operate from, it's usually cheaper and lower-down than a conventional commercial mortgage.
When the asset you're buying will outlive most loans — a building, a production line — you want financing that matches: long term, fixed rate, low down. That's exactly what the SBA 504 is built for, and it's where it beats both a conventional mortgage and the more flexible SBA 7(a).
The short version
The 504 is the fixed-asset specialist: ~10% down, a long-term FIXED rate, for owner-occupied real estate or heavy equipment. Its three-way structure (bank + CDC + you) is what delivers the low down payment and rate certainty. Don't reach for it for working capital — that's the 7(a)'s job.
What the 504 funds (and what it doesn't)
Pros
- Buying owner-occupied commercial real estate
- Building or renovating your own facility
- Heavy equipment / machinery with long useful life
- Long-term, fixed-rate certainty on a big asset
Cons
- Working capital or payroll
- Inventory
- Refinancing general business debt
- Investment / rental property you don't occupy
If your need is on the right column, use the 7(a) or a line of credit instead.
How the structure works
This is the part that makes the 504 special:
| Source | Share | Notes |
|---|---|---|
| Bank (first lien) | ~50% | Conventional loan, lender-set terms |
| CDC + SBA debenture | ~40% | Long-term FIXED rate — the 504's edge |
| You (down payment) | ~10% | Vs. 20–30% on a conventional CRE mortgage |
A Certified Development Company is a nonprofit, SBA-approved lender that handles the SBA-backed portion. You work with both the bank and the CDC, but the result is one project with far less cash down than going to a bank alone.
Rates, terms, and amounts
The CDC portion's long-term fixed rate is the headline: terms of 10, 20, or 25 years, locked — so a rate spike years from now never touches your largest financed asset. Project sizes routinely reach into the millions. The low down payment (~10% vs. the 20–30% a conventional commercial mortgage often wants) preserves the cash you need to actually run the business after the purchase.
Owner-occupied is a hard requirement
The 504 is for property your business occupies (generally 51%+ for an existing building, 60%+ for new construction). It is not a vehicle for passive real-estate investment. If you won't operate from it, it won't qualify.
How to qualify
Confirm the use is a fixed asset
Real estate you'll occupy, or long-life heavy equipment. Working capital disqualifies the 504.
Bring ~10% down and solid cash flow
Lenders and the CDC underwrite on the business's ability to service the debt; expect a personal guarantee. Newer or special-use properties may require a bit more down.
Engage a CDC early
The CDC drives the SBA side. Starting with both a bank and a CDC up front keeps the (multi-week) process moving.
Ready to see your options?
Tell us what your business needs and review relevant financing options.
The bottom line
For buying the building you operate from — or a major piece of equipment — the SBA 504 is hard to beat: ~10% down and a fixed rate locked for decades, via a bank-plus-CDC structure designed exactly for long-lived assets. Keep it in its lane (fixed assets, owner-occupied), pair it with a 7(a) for the flexible needs, and you finance the big purchase without draining the cash that keeps the business running.
Ready to see your options?
Tell us what your business needs and review relevant financing options.