SBA loan personal guarantee: who signs and what it covers
Anyone who will own 20% or more of the business after the sale must promise personally to repay a Small Business Administration (SBA) 7(a) loan, and spouses' shares are added together. At least one owner always signs. Collateral is a separate question that depends on loan size and type. The sections below explain both.
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Who must give a personal guaranty
The SOP starts with a floor: "at least one of the owners must provide a full unconditional guaranty," so every loan has a guarantor. Beyond that floor, owners of 20% or more "must provide an unlimited full guaranty." The percentage is measured after the sale, so for an acquisition it is the buyer's post-closing ownership that counts.
Source: SOP 50 10 8.1, Section A, Ch. 5, Guaranties; Appendix 15, Personal Guaranties
- Spouses. The stakes of spouses are combined. "Each spouse owning less than 20% of an Applicant must personally guarantee the loan in full" when family ownership is 20% or more. A non-owner spouse signs collateral documents only, and "The spouse’s guaranty secured by jointly held collateral will be limited to the spouse’s interest in the collateral."
- Entities and trusts. An entity or trust that owns 20% or more guarantees, and "the Trustor must also personally guarantee the loan." A trust does not avoid the guaranty.
- Key non-owners. A person who is "critical to the operation of the business may be required to provide a personal guaranty," full or limited (Form 148L). The SOP calls these Supplemental Guarantors.
- A selling owner who stays. In a partial change of ownership, a seller who keeps less than 20% "must provide a full guaranty for the full loan amount." "The term of the guaranty must be for at least two years after final loan disbursement," and "Lender may use SBA Form 148L or Lender’s equivalent."
Source: SOP 50 10 8.1, Section A, Ch. 5, Guaranties; Appendix 15, Personal Guaranties; Partial Change of Owner
Limited versus unlimited guaranties
An unlimited full guaranty is the standard for owners of 20% or more. The SOP also uses a limited guaranty, in two places: for key non-owners asked to support the loan, and for an Ineligible Person, other than an undocumented alien, who "may provide a limited guaranty." The second case is the exception to the citizenship rule described on the citizenship requirements page. SOP 50 10 8.1 states no dollar cap or formula for a limited guaranty beyond the spouse clause above, so confirm the amount with the lender.
Source: SOP 50 10 8.1, Section A, Ch. 5, Guaranties; Section A, Ch. 1, Citizenship And Residency Requirements
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Collateral rules and thresholds
Collateral is separate from the guaranty. For SBA Express and 7(a) Small loans of $50,000 or less, "collateral is not required." A Standard 7(a) loan "must be fully secured." For a change of ownership, Appendix 15 says the fully secured provisions apply to 7(a) Small and SBA Express loans as well, except that the lender need not take other commercial real estate. The SOP does not say how that interacts with the $50,000 rule, so confirm with the lender. SOP 50 10 8.1 states no tiers at $25,000, $350,000 or $500,000, so none are stated here.
Source: SOP 50 10 8.1, Appendix 19, SBA Express Loans; 7(a) Small Loans; Standard 7(a) Loans
"Fully secured" is measured at discounted values. Under Appendix 19, new machinery and equipment may be valued at no more than 75% of price, used equipment at no more than 50% of net book value (or 80% with an Orderly Liquidation Appraisal), improved real estate at no more than 85% and unimproved real estate at 50% of market value, and furniture and fixtures at no more than 10% of net book value or appraised value. Appendix 19 leaves trading assets to the lender's discretion and values them at no more than 10% of current book value if a lien is taken. For a change of ownership, Appendix 15 is stricter: "Lenders must take a security interest in the accounts receivable and inventory of the operating entity," valued at no more than 10% of current book value. The same Appendix requires evidence that all assets conveyed in the purchase, "including transferable licenses (e.g., liquor license)," are secured as collateral.
Source: SOP 50 10 8.1, Appendix 19, Standard 7(a) Loans; Appendix 15, Collateral Requirements for 7(a) Change of Ownership Loans; Change of Ownership Requirements
Personal real estate and life insurance
When the business assets fall short of "fully secured," the lender "Must take available equity in the personal real estate" that is solely owned by Co-Borrowers, owners of 20% or more and guarantors other than Supplemental Guarantors. The SOP does not require a lien on real estate when the equity is less than 25% of its fair market value. The lender may limit the lien: "Liens on personal real estate may be limited to the amount of the collateral shortfall," and also to 150% of the equity in the collateral. Real estate transferred to a non-owning spouse or minor children within 6 months of the application is not exempt. For a change of ownership, Appendix 15 says the fully secured provisions apply to 7(a) Small and SBA Express loans as well, except that the lender need not take other commercial real estate.
Source: SOP 50 10 8.1, Appendix 15, Collateral shortfall; Appendix 19, SBA Express Loans
Life insurance follows the shortfall: for owner-dependent businesses, "life insurance is required in the amount of the collateral shortfall," which in practice means single-owner businesses with a gap. "Credit life insurance or whole life insurance should not be required," existing policies may be pledged. For 7(a) Small and SBA Express loans the SOP says lenders "may follow their internal written policy" on life insurance; it does not say whether that displaces the shortfall rule for an acquisition, so confirm with the lender.
Source: SOP 50 10 8.1, Section A, Ch. 5, Insurance Requirements
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SBA's guaranteed share is not the personal guaranty
Two different guarantees share a name. The SBA guaranty is the government's promise to repay the lender for a share of a defaulted loan: 85% up to $150,000 and 75% above, to a $3,750,000 maximum guaranty. The personal guaranty is the owner's promise, to the lender, to repay the loan. They are separate commitments. The SBA file records the first, not the second.
Source: SOP 50 10 8.1, Appendix 16, General Requirements
In the file, SBA guaranteed 75.8% of acquisition loan dollars across 48,902 loans (FY2018 to FY2026). The site's data does not break the guaranteed share out by approval year, so only the all-years figure and the industry figures below are shown.
| Industry | Loans | Median loan | SBA guaranteed share |
|---|---|---|---|
| All acquisition loans | 48,902 | $645,250 | 75.8% |
| Full-Service Restaurants | 2,797 | $411,700 | 75.5% |
| Hotels and Motels | 2,310 | $2,621,250 | 76.1% |
| Limited-Service Restaurants | 2,222 | $350,000 | 75.8% |
| Beer, Wine, and Liquor Retailers | 1,736 | $650,000 | 76.2% |
| Gasoline Stations | 1,347 | $1,436,000 | 76.1% |
| General Automotive Repair | 1,089 | $562,500 | 75.5% |
| Plumbing, Heating, and Air-Conditioning Contractors | 921 | $734,000 | 74.6% |
| All Other Specialty Trade Contractors | 884 | $673,500 | 75.0% |
| Child Care Services | 850 | $763,300 | 75.4% |
| Insurance Agencies and Brokerages | 832 | $720,000 | 76.8% |
A guaranteed share near 75% reflects the 75% guaranty on loans above $150,000. It says nothing about who signed personally.
What this means for a business acquisition
In an acquisition the guaranty follows the post-closing ownership, so the people who will own 20% or more after the sale are the ones who sign, with spouses counted together. The median acquisition loan is $645,250, so a guarantor is typically signing for a loan of that size, with collateral in the business assets and, if there is a shortfall, in personal real estate. The complete buyer guide covers the full underwriting sequence, and the default-rate page shows how often acquisition loans are charged off.
Questions buyers ask
Who has to sign a personal guaranty on an SBA 7(a) loan?
Every owner of 20% or more provides an unlimited full guaranty, measured after the sale, and the stakes of spouses are combined. The SOP also says at least one owner must always provide a full unconditional guaranty. The SOP sets further triggers for spouses, trusts and key people.
Does my spouse have to sign?
Each spouse owning less than 20% of an applicant must personally guarantee the loan in full when family ownership reaches 20% or more. A spouse who owns nothing signs collateral documents only. A spouse who is an Ineligible Person may give a limited guaranty.
Can I avoid a guaranty by putting the business in a trust?
No. The SOP says a trust owning 20% or more guarantees, and "the Trustor must also personally guarantee the loan." Entities owning 20% or more guarantee as well.
Does an SBA loan require collateral?
Standard 7(a) loans must be fully secured, at discounted asset values, and a change of ownership loan requires liens on the receivables and inventory of the operating entity. For SBA Express and 7(a) Small loans of $50,000 or less, collateral is not required. For a change of ownership, Appendix 15 says the fully secured provisions apply to 7(a) Small and SBA Express loans as well, except that the lender need not take other commercial real estate. SOP 50 10 8.1 states no other collateral tiers.
Can an SBA loan take your house?
The SOP has no primary-residence exemption. When collateral falls short on an acquisition loan, the lender "Must take available equity in the personal real estate," and a solely owned home with at least 25% equity can be required, with a lien limited to the shortfall. Property in a wholly owned entity counts as solely owned, and homes held jointly with a spouse fall under "must consider." The lender makes the call (Appendix 15, Collateral shortfall).
Sources
SBA SOP 50 10 8.1 (effective October 1, 2026), headings cited:
- Section A, Ch. 5: Guaranties; Insurance Requirements
- Appendix 15: Personal Guaranties; Partial Change of Owner; Collateral Requirements for 7(a) Change of Ownership Loans; Collateral shortfall; Change of Ownership Requirements
- Section A, Ch. 1: Citizenship And Residency Requirements
- Appendix 19: Standard 7(a) Loans; SBA Express Loans; 7(a) Small Loans
- Appendix 16: General Requirements
SBA pages: 7(a) loans. Loan data: SBA 7(a) FOIA file, data.sba.gov, as of September 30, 2026.
Cite this page: SBA Acquisition Data, "SBA loan personal guarantee: who signs and what it covers", https://sbaacquisitiondata.com/sba-loan-personal-guarantee, published November 1, 2026 (data as of September 30, 2026).
Terms signed in the LOI shape the purchase agreement that follows.
Request Engagement AssessmentAlex Lubyansky leads every engagement.
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