The most useful sentence in the SBA’s collateral rules is a negative one: the SBA does not require a loan to be fully collateralized, and a loan may not be declined solely because it cannot be. Everything else is detail about what a lender must take when collateral exists. This guide sets out those rules by loan size under SOP 50 10 8, explains the valuation math behind “fully secured,” separates collateral from the personal guarantee, and shows how often SBA loans are actually secured across the 1,036,074 loans in the public record.
The rules by loan size
$50,000 or less. The SBA does not require collateral on 7(a) Small or SBA Express loans of this size. International Trade loans are the exception.
$50,001 to $350,000 (7(a) Small). The lender must follow the written collateral policy it uses for similarly sized non-SBA commercial loans. A loan is not to be declined solely on the basis of inadequate collateral. SBA Express lenders may apply their own policy above $50,000 on loans up to $500,000.
Above $350,000 (Standard 7(a)). The lender must collateralize the loan to the maximum extent possible up to the loan amount. The SBA considers a loan “fully secured” when the lender holds security interests in all assets acquired, refinanced, or improved with the loan plus the applicant’s available fixed assets, with a combined adjusted value up to the loan amount. If that is not enough, the lender must take available equity in personal real estate owned by 20% owners and guarantors. If the loan is still short after that, the SBA still allows it.
How “fully secured” is measured
The test is not market value. SOP 50 10 8 applies haircuts to every asset class:
| Asset | Value counted toward “fully secured” |
|---|---|
| New machinery and equipment | Up to 75% of price, less prior liens |
| Used machinery and equipment | Up to 50% of net book value, or 80% with an orderly liquidation appraisal |
| Improved real estate | Up to 85% of market value |
| Unimproved real estate | Up to 50% of market value |
| Furniture and fixtures | Up to 10% of net book value or appraised value |
| Receivables and inventory | Up to 10% of current book value, and only if the lender chooses to take them |
A first security interest is required in whatever the loan buys, refinances, or improves, with narrow exceptions for improvements to assets already carrying reasonable debt. Vehicles need a lien only when worth more than $10,000. Real estate that the loan finances must be appraised under the SOP’s appraisal rules.
When personal real estate comes in
On a Standard 7(a) loan with a shortfall, the lender must take available equity in personal real estate, residential or investment, that is owned by any direct or indirect owner of 20% or more and by guarantors other than supplemental guarantors. Three limits protect the owner:
- the lien may be limited to the amount of the shortfall, and to 150% of the equity in the property;
- the SBA does not require real estate to be pledged at all when the equity in it is less than 25% of its fair market value, and the lender must document the source of that determination;
- real estate transferred to a non-owner spouse or minor children within six months of the application is still counted as available.
Where an owner holds the property jointly with a spouse, the lender must consider a lien on it, and the spouse may be asked for a limited guarantee solely to reach the jointly owned asset. What those liens mean if the loan later fails is covered in SBA default and your house.
Collateral is not the personal guarantee
The two are separate obligations, and the guarantee is the one that never goes away. Under 13 CFR 120.160, every holder of 20% or more of the business generally must guarantee the loan in full, and the lender may require guarantees from others when credit warrants it. A guarantee is a promise to repay from anything you own; collateral is a lien on specific property. A borrower with no collateral still signs the guarantee, and a fully secured borrower still signs it too. The SBA personal guarantee guide covers what it exposes. Hazard insurance is required on collateral for loans above $500,000, and the lender may require life insurance under its own policy.
Collateral on a 504 loan
A 504 loan finances the asset that secures it. Under 13 CFR 120.801 the bank holds a first lien on the project property and the CDC’s debenture a second lien, and additional collateral may be required where the project alone is not enough. The personal guarantees apply the same way.
What the record shows
The SBA’s public loan record carries a collateral indicator on each loan. Across every loan funded from fiscal year 2010 through March 31, 2026:
| Program | Loans | Secured at approval |
|---|---|---|
| 7(a) | 919,729 | 75.9% |
| 504 | 116,345 | 98.4% |
| All SBA loans | 1,036,074 | 78.4% |
Nearly a quarter of 7(a) loans, 24.1%, were made without collateral. That is the rule working as written: small loans need none, and larger loans on strong cash flow are approved short. The 504 figure reflects a program whose loans are secured by definition. Whether collateral predicts survival is a separate question; the site’s charge-off analysis finds loan size and industry matter far more than the interest rate, and SBA loan mechanics sets the collateral figure alongside the guarantee, term, and pricing facts from the same record.
What to do with this
Lead with cash flow, because that is what the rules test first; estimate what your business supports with the affordability calculator and read how much you can borrow. List your business assets with realistic values under the haircuts above, so you know before the lender does whether a Standard 7(a) loan will reach your home. If it would, ask whether the request can be structured under $350,000, split between a 7(a) loan and a 504 loan for the real estate, or reduced to what the business assets secure. And when the loan is paid, make sure every lien is released; payoff and lien release covers that step. Collateral rules follow the SOP in effect when the SBA issues a loan number, and lenders may be stricter than the SBA within them; confirm specifics with a participating lender.