Key Takeaways

• The same property, financed three different ways, produces three different cash positions, tax profiles, and legal structures — the loan choice shapes the entity and lease structure for a decade.
• SBA 7(a): up to $5 million, broad eligible uses, at least 51% owner-occupancy for existing buildings, variable-rate exposure common.
• SBA 504: a 50/40/10 structure (bank / CDC debenture / borrower equity), long-term fixed rate on the CDC piece, fixed assets only, same owner-occupancy thresholds.
• Conventional: typically larger down payment, tighter covenants, no occupancy minimum — used when the property is pure investment or the occupancy thresholds can’t be met.
• For an owner-user buying the building their own practice will occupy, SBA 504 is frequently the strongest fit — but the right answer is fact-specific, and the financing choice drives legal structure, not the other way around.

Financing a Commercial Acquisition: SBA 7(a) vs. 504 vs. Conventional

The short answer

Three financing paths dominate owner-user commercial acquisitions, and they are not interchangeable. SBA 7(a) offers broad flexibility up to $5 million but often carries variable-rate exposure. SBA 504 uses a 50/40/10 structure that locks in a long-term fixed rate on a large piece of the debt and preserves working capital, but is limited to fixed assets. Conventional financing imposes no occupancy minimum and suits pure investment property, but typically demands a larger down payment. For a professional buying the building their own practice will occupy, SBA 504 is frequently the strongest fit — but the loan choice is a legal-structure decision as much as a banking one, because it shapes the entity, the lease, and the exit for years.

Why the loan choice is really a structure choice

It is tempting to treat financing as a banking question — find the lowest rate and move on. For an owner-user acquisition, that framing misses the point. The financing path you choose constrains how you hold the property, how the operating business and the real estate relate, what guaranties you sign, and how cleanly you can exit or refinance later.

A loan with an owner-occupancy requirement, for instance, presumes a specific relationship between your operating business and the building — which interacts directly with the self-rental and entity-structure questions covered elsewhere in this series. A loan with personal guaranty demands shapes your asset-protection posture. The point is that the loan documents and the legal documents are the same project. Choosing the financing without the legal structure in view is how owner-users end up with arrangements that fight each other.

SBA 7(a): the flexible workhorse

The SBA 7(a) program is the most flexible of the three, designed for a broad range of business purposes.

The core features: loans up to $5 million; broad eligible uses including acquiring or improving real estate, working capital, refinancing business debt, and buying equipment; and, for real estate, an owner-occupancy requirement that the operating business occupy at least 51% of the space in an existing building (more for new construction). Maturities run up to 25 years for real estate. Rates are commonly variable, tied to a benchmark plus a spread, which means interest-rate exposure over the life of the loan.

The 7(a)’s strength is flexibility — it can fund a mix of needs in one facility, including working capital that the 504 cannot. Its trade-off, for a real estate acquisition, is that variable-rate exposure, which can matter a great deal over a 25-year hold. For a borrower whose primary goal is to acquire and hold real estate at a predictable cost, that variability is the feature to weigh most carefully.

SBA 504: built for the owner-user real estate purchase

The SBA 504 program is purpose-built for exactly the acquisition this series is about: an operating business buying the building it will occupy.

The structure is the defining feature — a 50/40/10 split: roughly 50% from a conventional bank lender (first lien), 40% from a Certified Development Company through an SBA debenture (second lien), and 10% borrower equity. The CDC debenture typically carries a long-term, fixed, below-market rate, and the program is limited to fixed assets, real estate and long-life equipment, not working capital. Owner-occupancy thresholds mirror the 7(a): at least 51% occupancy for an existing building, more for new construction.

Why it fits the owner-user so well: the low 10% equity requirement preserves working capital that a professional would otherwise tie up in a down payment; the long-term fixed rate on the 40% CDC piece removes a large chunk of interest-rate risk over the hold; and the structure aligns naturally with the depreciation and cost-segregation strategy, because the borrower owns the real estate and the improvements. For a physician acquiring a medical office building their practice will occupy, the 504 frequently checks every box — fixed-rate stability, preserved capital, and an ownership structure that supports the broader tax plan.

The trade-off is rigidity: fixed assets only, more moving parts (two lenders plus a CDC), and a process that rewards planning. The rate stability and capital preservation are why it remains, for many owner-users, the first option to evaluate — though “first to evaluate” is not “automatically right,” and the comparison has to be run on real numbers.

Conventional financing: when the SBA box doesn’t fit

Conventional commercial financing is the path when the property is pure investment, when the owner-occupancy thresholds cannot be met, or when the borrower simply prefers to stay outside the SBA framework.

The typical features: a larger down payment, often in the range of 25–35%; tighter covenants; and — importantly, no owner-occupancy minimum. That last feature is the key. If you are buying a building as an investment rather than to occupy with your own business, or if your business will occupy less than the SBA’s threshold, the SBA programs are off the table and conventional financing is the route.

The trade-off is the larger equity check and the loss of the SBA’s rate and capital advantages. For a pure investment acquisition, that is simply the cost of the deal. For an owner-user who could qualify for an SBA program, choosing conventional means weighing the flexibility of no occupancy rules against the capital and rate benefits given up.

How to think about the choice

A simplified way to frame the decision, recognizing that every real situation is more nuanced and belongs in front of advisors:

• Are you occupying the building with your own operating business at the required threshold? If yes, the SBA programs are in play. If no, you are likely looking at conventional.
• Do you need working capital as part of the financing, not just the real estate? That points toward 7(a), which the 504 cannot cover.
• Is long-term rate stability a priority, and can you preserve capital with a low equity contribution? That points toward 504.
• Is this a pure investment property, or will occupancy fall short of the thresholds? That points toward conventional.

These are starting questions, not answers. The real decision depends on your numbers, your business, your hold horizon, and how the financing interacts with the entity and lease structure — which is why it belongs in a coordinated conversation with your lender, your CPA, and counsel, not decided on rate alone.

The structure that surrounds the loan

Whichever path you choose, the financing sits inside a legal structure that has to be built alongside it: the entity that owns the real estate, the lease between that entity and your operating business, the personal guaranties the lender will require, and the indemnities and protections that go with them. Each of these affects both your cost and your exit, and each interacts with the tax and asset-protection strategy covered elsewhere in this series. The owner-users who do this well treat the loan and the legal structure as one decision, designed together before the letter of intent — which is the through-line of this entire playbook.

Work with Bay Legal

The financing path you choose shapes your entity structure, your lease, the guaranties you sign, and your exit options for the next decade — which makes it a legal decision as much as a banking one. The owner-users who get the best outcomes design the loan and the legal structure together, before the letter of intent. To do that with a California attorney, call Bay Legal at (650) 668-8000 or reach us through baylegal.com/contact.

We sit at the table with your lender, your CPA, and your broker so the legal documents support both the financing and the tax strategy — the entity that owns the building, the lease back to your practice, and the protections around the guaranties. To start, reach a California attorney at (650) 668-8000 or baylegal.com/contact.

Because the right financing and structure depend on your business, your numbers, and your hold horizon, the useful next step is a conversation about your situation. Call (650) 668-8000.

Frequently Asked Questions

What is the difference between SBA 504 and 7(a) loans?

The SBA 7(a) is a flexible program up to $5 million that can fund real estate, working capital, equipment, and debt refinancing, often at variable rates. The SBA 504 uses a 50/40/10 structure (bank, CDC debenture, borrower) limited to fixed assets like real estate, and offers a long-term fixed rate on the CDC portion. For acquiring a building your business will occupy, the 504’s rate stability and low equity requirement frequently make it the stronger fit.

What is the owner-occupancy requirement for an SBA loan?

For both the 7(a) and 504 programs, the operating business must occupy at least 51% of an existing building, with a higher threshold (commonly 60%) for new construction. This requirement is why these programs suit owner-users — businesses buying the space they will operate in, rather than pure investors.

How should a physician finance a medical office building?

For a physician buying a building their own practice will occupy, the SBA 504 is frequently the strongest option: it preserves working capital with a low equity requirement, locks in a long-term fixed rate on a large portion of the debt, and supports the depreciation strategy. The right choice is fact-specific, however, and should be evaluated with a lender, CPA, and counsel together.

When does conventional financing make more sense than an SBA loan?

Conventional financing is typically the route when the property is a pure investment, when the business will occupy less than the SBA occupancy threshold, or when the borrower prefers to stay outside the SBA framework. It imposes no occupancy minimum but usually requires a larger down payment, often 25–35%, and gives up the SBA’s rate and capital advantages.

Does the type of loan affect my legal structure?

Yes, significantly. The financing path shapes how you hold the property, the relationship between your operating business and the real estate, the personal guaranties you sign, and your exit options. Because the loan documents and legal documents are effectively one project, the financing and the entity and lease structure should be designed together.

This article is general legal information, not legal, tax, or financial advice. Reading this article and contacting Bay Legal, PC do not create an attorney-client relationship; that relationship is formed only by a signed engagement agreement. This article addresses California law and is written for California residents; other states differ. The law changes, and the figures and rules described here are current only as of drafting and may have changed since publication.