Owning or managing an LLC does not make someone personally liable for its debts. A valid personal guaranty can, depending on its terms and the guarantor’s defenses.
When a business customer stops paying, creditors often look to the person behind it. California law generally treats an LLC’s debts as the company’s own. Whether an owner can be pursued personally usually turns on what that person signed.
What Creates a Personal Guaranty?
A guaranty is the individual’s own promise to answer for the business’s debt if the business does not pay. The business remains the principal debtor; the guarantor’s liability comes from the guarantor’s separate undertaking.
That is different from alter ego, which asks a court to impose an existing company obligation on its owner, and from direct liability for a person’s own wrongful conduct. Enforcing a valid guaranty does not require piercing the corporate veil. Our article on corporate judgments and alter-ego liability explains that separate theory.
Does the Guaranty Have to Be in Writing?
Generally, yes. A special promise to answer for the debt or default of another is invalid unless it, or a note or memorandum of it, is in writing and subscribed by the party to be charged or that party’s agent. 1
Section 2794 identifies limited circumstances in which such a promise is treated as an original obligation that need not be in writing. Those exceptions depend on specific facts; an owner’s financial interest in the business does not automatically satisfy them, and oral promises should not be assumed either enforceable or unenforceable without analysis. 2
A guaranty does not always appear in a separate document titled “Personal Guaranty.” It may be included in a credit application or another agreement. The language and signature block matter.
Does Signing as “President” or “Manager” Prevent Personal Liability?
Not necessarily. In Sebastian International, Inc. v. Peck (1987) 195 Cal.App.3d 803, 807–809, the court enforced a guaranty that expressly bound the officer personally even though a corporate title accompanied his signature. 3
But the title is not always irrelevant. In Home Federal Savings & Loan Assn. v. Ramos (1991) 229 Cal.App.3d 1609, 1613–1615, the court looked to the agreement and the relevant circumstances. The decisions do not establish a universal rule either way. 4
Signing an ordinary contract for an LLC as its manager or officer does not, without more, make the signer a guarantor of the company’s debts.
What Should a Creditor Check?
Before demanding payment from an individual, review:
- The guarantor’s identity and evidence that the guarantor agreed.
- Which transactions are covered, any dollar limits, and the guaranty’s duration.
- Proof of the underlying debt and the business’s default.
- Notice, demand, and other contractual conditions.
- Amendments, releases, consent provisions, and waivers.
- Applicable deadlines and realistic collection prospects.
An invoice is useful evidence, but it does not by itself conclusively prove the amount owed. The underlying agreement, delivery or performance records, and payment history usually matter as well.
Must the Business Be Sued First? What Defenses May Apply?
There is no single answer. The guaranty’s terms and applicable law control.
Civil Code section 2845 allows a surety to require the creditor to proceed against the principal, or to pursue other specified remedies that would lighten the surety’s burden. If the creditor neglects to do so, the surety is exonerated to the extent of resulting prejudice. 5
Section 2856 permits a guarantor to waive specified suretyship rights and defenses. Whether a particular waiver is effective depends on its language and scope; a waiver clause does not necessarily defeat every defense. 6
Under section 2819, a surety may be exonerated if the creditor, without the surety’s consent, alters the original obligation or impairs the creditor’s remedies against the principal. Consent and enforceable waivers matter, and not every amendment automatically releases a guarantor. 7
Practical Next Steps
Gather the signed guaranty, the underlying agreement, invoices, delivery or performance records, payment history, any modifications, and related communications. If the business also breached the underlying contract, our article on contract termination after breach may help frame the options.
Enforceability and collectability are separate questions. A valid guaranty does not guarantee payment, recovery of attorney fees, or access to every personal asset. Our business litigation practice can evaluate both.
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Discuss Your Matter
If a business customer has defaulted and you hold a personal guaranty, you may contact Mahrouyan Law to review the documents and your options. Outcomes depend on the agreement, the evidence, and applicable law.
Omeed Mahrouyan is the founder of Mahrouyan Law, P.C., a California firm handling business and commercial litigation, property and cargo damage claims, personal injury, landlord representation, startup transactions, and practical intellectual property matters. Clients work directly with him on strategy, drafting, and case decisions.
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