SBA 504 Loan for Real Estate: Structure & Requirements

An SBA 504 loan for real estate can help an eligible small business purchase, construct, or improve commercial property that it will occupy and use for its operations. The program combines financing from a third-party lender with a loan arranged through a Certified Development Company (CDC), typically allowing the business to contribute a smaller share of the eligible project cost than some conventional property-financing structures.

The often-cited 10% borrower contribution is a starting point, not a universal down-payment promise. Newer businesses and certain special-purpose properties may require larger contributions. The property must also meet SBA occupancy, eligibility, underwriting, and economic-development requirements. Before choosing this structure, compare the full financing package, expected business use, and cash needed after closing.

What Is an SBA 504 Loan for Real Estate?

The SBA 504 program supports qualifying major fixed-asset investments, including owner-occupied commercial real estate, building construction and improvements, and certain long-life machinery and equipment. The financing is arranged with a CDC and a participating third-party lender. The CDC portion is typically funded through an SBA-guaranteed debenture; the senior lender provides a separate loan.

504 is not a general-purpose source of operating cash. Ordinary working capital, payroll, inventory, and speculative investment in rental property are not eligible uses for a standard 504 project. Some qualifying existing fixed-asset debt may be refinanced under separate 504 rules.

Review the official SBA 504 program overview for the agency’s current description of eligible uses and program requirements.

How the SBA 504 Financing Structure Works

A standard SBA 504 project is often described as a 50/40/10 structure. In a typical eligible transaction:

• A third-party lender, often a bank, provides at least 50% of eligible project financing.
• The CDC-arranged SBA 504 portion covers up to 40% of the eligible project.
• The business contributes at least 10% of eligible project costs.

These percentages describe a common structure, not three universal commitments. The required borrower contribution, CDC percentage, lender terms, and eligible costs depend on the transaction. The senior lender loan and CDC-backed loan have separate documents, rates, and repayment conditions.

When the Borrower Contribution Is 10%, 15%, or 20%

Under the general borrower-contribution rule in 13 CFR 120.910, the borrower generally contributes at least 10% in a standard eligible project. The minimum generally increases to 15% if the business has operated for two years or less, or if the project involves a limited- or single-purpose building. When both circumstances apply, the minimum generally increases to 20%.

For example, on a hypothetical $1 million eligible project, the minimum contribution would be $100,000 at 10%, $150,000 at 15%, or $200,000 at 20%, before considering other cash requirements and the lender’s final underwriting. These figures illustrate the percentages; they are not financing offers or statements that every project qualifies at those amounts.

A CDC should confirm the project’s total eligible cost, how contributions can be sourced and documented, and whether other expenses must be paid outside the financed budget. Do not assume that purchasing property with 10% cash automatically means the business is ready to close.

Owner-Occupancy Requirements for Commercial Property

504 property financing generally supports an operating business’s own facility rather than a passive rental-property investment. A property can have other tenants under permitted conditions, but the operating business must satisfy SBA occupancy requirements.

Purchasing or Renovating an Existing Building

For an existing building, the operating business generally must occupy and use at least 51% of the rentable property. Subject to applicable rules, the balance may be leased to other tenants. The rentable-property calculation and any eligible passive company structure must be reviewed with the CDC.

Constructing a New Building

For new construction, the operating business generally must initially occupy and use at least 60% of the rentable property. SBA also limits permanent leasing to other tenants and requires plans for the business to occupy additional space as the project matures. The applicable regulation provides for planned use of some remaining space within three years and all space not permanently leased within ten years.

See 13 CFR 120.131 for the existing-building and new-construction occupancy framework. A building with excessive third-party rental use may not qualify merely because the applicant plans to own it through a business entity.

Which Real Estate Costs May Qualify?

An eligible 504 fixed-asset project may involve purchasing an existing building, acquiring land for an eligible business facility, constructing a new building, renovating qualifying space, or making certain site improvements. Examples may include an owner-occupied warehouse, manufacturing facility, medical office, restaurant building, or company headquarters.

Appraisals, construction budgets, environmental evaluations, title work, permits, and other project documents may affect which costs qualify and how much cash the business needs at closing. A project involving specialized property or extensive renovations may also face additional requirements.

Because 504 proceeds are tied to eligible fixed assets, businesses that also need working capital or inventory should evaluate those needs separately. Our SBA 7(a) versus 504 comparison explains the different permissible uses of the two programs.

SBA 504 Interest Rates, Terms, and Total Costs

The SBA-backed CDC debenture portion generally carries a fixed interest rate, with 10-, 20-, and 25-year maturity options available under the program. That does not mean the entire project has one fixed rate for its full term. The third-party lender provides a separate loan whose interest rate, amortization, maturity, and other terms are negotiated under its own financing structure.

The CDC portion’s effective rate depends on the debenture and applicable charges. The total financing cost can also include CDC and SBA-related fees, closing expenses, lender fees, appraisal and environmental expenses, interim-financing costs, and prepayment provisions. A rate quoted in June 2026 should not be presented as a rate available to borrowers today.

Ask for a written explanation of both loans, their payments, rate-adjustment provisions if any, the combined cash requirement, projected closing costs, and any prepayment premiums. Compare the complete economic obligation rather than a single advertised 504 rate. Our guide to comparing financing offers provides a broader review framework.

How Much Financing Is Available Through SBA 504?

The SBA currently describes the maximum 504 loan portion as up to $5.5 million, subject to the project’s eligibility and applicable program provisions. The complete property project may cost more because the 504 structure also includes third-party financing and borrower funds. The $5.5 million figure is not a universal cap on total real estate project value.

Effective July 4, 2026, SBA also revised its cumulative 7(a) and 504 financing policy. Qualified borrowers may be eligible for up to $10 million in combined SBA-backed financing when the two programs are used under the applicable rules. This does not create a $10 million maximum for a single 504 loan, guarantee that both programs are available, or remove normal lender underwriting. See the SBA’s July 2026 announcement.

Eligibility Beyond the Property Itself

The applicant generally must be an eligible operating, for-profit small business located in the United States, meet applicable SBA size requirements, and demonstrate sufficient repayment ability. SBA also considers whether the business type, ownership, project, and economic-development objectives meet program rules. The CDC and third-party lender conduct their own reviews.

For size eligibility, an applicant may be evaluated under applicable industry standards or the alternative business-loan size standard, as permitted. The alternative standard currently includes tangible net worth no greater than $20 million and average net income after federal taxes no greater than $6.5 million for the preceding two full fiscal years. That does not mean a business that meets those figures is automatically eligible or approved.

SBA’s ownership and residency policy effective March 1, 2026, also affects 504 eligibility. Under the current published rules, direct and indirect ownership generally must meet the U.S. citizen or U.S. national and principal-residence requirements. Complex ownership structures should be reviewed early with the CDC and lender. Refer to the SBA’s ownership procedural notice and the current governing SOP.

For more context, see our SBA financing eligibility guide.

Job Creation, Economic Development, and Other Project Requirements

The 504 program supports economic development and job creation or retention. Qualifying transactions generally must meet applicable job-opportunity benchmarks or satisfy an eligible public-policy or community-development objective. Do not assume that one fixed jobs-per-dollar ratio applies to every applicant, sector, or project.

Other reviews may include a feasibility assessment, environmental requirements, appraisals, zoning, construction plans, insurance, title and lien issues, collateral, and personal guarantees. Business owners should ask the CDC which conditions apply before signing a purchase agreement or committing to a construction schedule.

SBA 504 Versus 7(a) for a Real Estate Purchase

Both SBA 504 and SBA 7(a) financing can support eligible business real estate, but they use different structures. A 504 transaction is specifically designed around eligible major fixed assets and commonly combines a third-party lender loan with an SBA-backed CDC loan.

A 7(a) transaction generally involves a participating lender and may offer more flexibility when the business also needs eligible working capital, inventory, or other permitted uses. The appropriate program depends on the property, financing purpose, business profile, equity available, loan terms, and repayment capacity.

Neither program automatically provides the lowest rate, the smallest required contribution, or the quickest closing. Consider both if the business’s purchase requires more than a straightforward real-estate loan.

Can SBA 504 Refinance a Commercial Mortgage?

Potentially. Separate 504 refinancing provisions permit some qualifying fixed-asset debt to be refinanced, with requirements that depend on whether the refinancing is associated with expansion. Restrictions can cover the age and purpose of the debt, payment history, collateral, business operations, and eligible expenses.

Refinancing is not unrestricted cash-out financing, and not every commercial mortgage qualifies. For those rules, use our dedicated SBA loan refinancing options guide rather than assuming the same conditions apply as to a new property purchase.

How to Prepare for an SBA 504 Property Application

A useful first step is to speak with an SBA-approved CDC and participating third-party lender before relying on any specific purchase or closing deadline. They can evaluate the proposed project and identify what remains to be verified.

Depending on the transaction, requested records may include:

• Business financial statements, tax returns, bank statements, and existing debt schedules.
• Business formation, ownership, citizenship, residency, and identification information.
• Purchase agreements, property details, intended occupancy calculations, and lease information.
• Appraisals, environmental reports, title information, zoning or permit records, and insurance requirements.
• Construction estimates, renovation budgets, contractor bids, or equipment quotes.
• Evidence of required equity and a breakdown of all anticipated project and closing costs.
• A business explanation of how the property supports operations and how future cash flow will support repayment.

Not every transaction needs every document. A lender may request additional information after its initial review. Gathering accurate records early can reduce avoidable questions, but it cannot guarantee approval or a particular funding date. See our business financing readiness checklist.

What to Consider Before Replacing a Lease With Ownership

Purchasing property can provide more control over a location and the possibility of building equity, but the decision adds obligations that a lease may not involve. Property taxes, repairs, insurance, maintenance, improvements, and potential changes in market value all affect the true cost of ownership.

Compare expected occupancy needs and operating cash against the complete project payment, not just today’s rent. Consider how much cash remains after the borrower contribution and closing expenses, and whether the business could sustain payments during a slow period. Buying a building should support the company’s operations, not leave it unable to fund payroll or essential inventory.

Frequently Asked Questions About SBA 504 Real Estate Loans

Does an SBA 504 loan always require only 10% down?

No. A standard eligible project generally requires at least 10% borrower contribution, but the minimum generally increases to 15% for a business that has operated for two years or less or for a limited- or single-purpose property. When both conditions apply, the minimum is generally 20%. Other transaction costs and lender requirements may increase the cash needed.

Can SBA 504 finance a building with tenants?

Potentially, if the operating business meets the occupancy rules. For an existing building, it generally must occupy at least 51% of rentable property. New construction generally requires at least 60% initial occupancy and additional future-use conditions. The structure cannot be used primarily for passive investment in rental real estate.

Is the entire SBA 504 financing package fixed-rate?

Not necessarily. The CDC-backed debenture portion generally carries a fixed rate. The separate third-party lender loan may have different rate and repayment terms, so borrowers should review both obligations.

Can SBA 504 funds pay for inventory or payroll?

No. Standard 504 proceeds support eligible fixed assets, not ordinary working capital, inventory, or payroll. Qualifying debt-refinancing structures have separate rules and should not be confused with unrestricted operational funding.

How long does SBA 504 approval and funding take?

There is no universal number of days. The CDC, third-party lender, appraisals, environmental work, SBA requirements, underwriting, closing conditions, and debenture funding process can all affect timing. Obtain a project-specific estimate instead of relying on a fixed 60- or 90-day promise.

Can SBA 504 financing be combined with SBA 7(a)?

Potentially. Under SBA’s July 2026 cumulative-financing policy, eligible borrowers may combine 7(a) and 504 financing within the applicable aggregate rules. The change does not guarantee approval, change each individual program’s loan limits, or permit 504 funds to be used for ordinary working capital.

Explore Real Estate Financing That Fits the Business

An SBA 504 loan for real estate may be appropriate when an eligible business needs qualifying owner-occupied commercial property or major fixed assets and has a realistic plan for the required contribution and long-term repayment. The key decision is whether the project structure, total cost, occupancy requirements, and business cash flow work together.

Bright Side Capital uses a multi-program approach to help business owners explore and compare commercial financing programs and providers. Specific SBA eligibility, financing availability, costs, closing conditions, and funding timelines depend on the participating lender, CDC, transaction, and current program rules.

To explore financing options for your business, complete the Bright Side Capital Business Survey. An initial inquiry is not an SBA application approval or a guarantee of financing.