When Can a Party Be Held Liable for Another Person's Debt? A Philippine Supreme Court Guide

The General Rule on Contracts

A contract is a meeting of minds between two parties. As a general rule, it affects only those who entered into it. This principle, rooted in Article 1311 of the Civil Code, states that contracts take effect only between the parties, their assigns, and heirs. A third person cannot be forced to comply with an agreement they never made, nor can they be made to pay for another's obligation.

The Supreme Court reaffirmed this in Manlar Rice Mill, Inc. v. Deyto (G.R. No. 191189, January 29, 2014), a case that clarifies when — and when not — a person may be held liable for someone else's debt. The ruling serves as a warning to creditors who sue third parties without solid evidence of their involvement in the transaction.

The Case: A Mother, a Daughter, and Unpaid Rice Deliveries

The petitioner, Manlar Rice Mill, Inc., supplied rice worth over ₱3.8 million to Jennelita Deyto Ang, who paid with nine postdated checks drawn from her personal bank account. All checks were dishonored — the first two for insufficient funds, the rest because the account was already closed.

Manlar sued both Ang and her mother, Lourdes Deyto, who operated the JD Grains Center. Manlar claimed that Deyto induced the company to deliver rice by showing her business permits, certificates of registration, and land titles to prove her creditworthiness. Manlar also alleged that Deyto verbally guaranteed Ang's checks.

The trial court ruled in Manlar's favor, holding both mother and daughter solidarily liable. The Court of Appeals reversed, and the Supreme Court affirmed the reversal.

The Issue: Who Actually Contracted with Manlar?

The central question was whether Deyto was a party to the rice supply contract or merely the mother of the person who bought the rice.

The evidence pointed to Ang alone. The checks came from Ang's personal account. Manlar's own witness testified that Deyto was not present during deliveries, that Ang alone issued and delivered the checks, and that deliveries actually went to Ang's residence, not Deyto's. The bank's operations head confirmed that Ang was the sole account owner.

The Court found it improbable that Deyto, an elderly and reputable businesswoman from Isabela, would need to prove her creditworthiness to Manlar — a company in the same line of business in the same province. The Court also noted that Ang had been removed from JD Grains Center years earlier and that mother and daughter were estranged.

Solidary Liability Cannot Be Lightly Inferred

Manlar argued that Deyto verbally guaranteed Ang's checks. The Court rejected this. Under well-settled doctrine, solidary liability exists only when the obligation expressly states it, when the law provides for it, or when the nature of the obligation requires it. A mere verbal assurance does not suffice.

The Court saw the case for what it was: an attempt to recover losses from a solvent party — Deyto — because the actual debtor, Ang, had absconded. This, the Court held, cannot be allowed. A contract binds only its parties, and Deyto was not one of them.

Burden of Proof in Civil Cases

The ruling also underscores a basic evidentiary rule: he who alleges must prove. In civil cases, the plaintiff must establish its claim by preponderance of evidence — evidence that is more convincing and of greater weight than the opposing party's. Manlar failed to meet this standard against Deyto.

Practical Takeaways

• A contract binds only its parties. Before suing a third person for another's debt, verify that the person actually participated in the transaction. A family relationship alone is not enough.
• Solidary liability must be proven. It cannot be inferred from a verbal assurance or from the mere fact that a person vouched for a debtor. Look for express stipulation, a legal provision, or the nature of the obligation.
• Document everything. Verbal guarantees are difficult to enforce. If a third party guarantees payment, reduce the guarantee to writing and have it signed.
• Prepare evidence of delivery and participation. In claims for unpaid goods, documentary proof of delivery and of the defendant's involvement is critical. Hearsay testimony from a sales manager who did not personally witness deliveries will not suffice.
• Burden of proof is on the creditor. A creditor who fails to prove its case against a third party cannot recover from that party, even if the actual debtor is insolvent or missing.

This article is general information and not legal advice. For your specific situation, consult a lawyer or ask ASG Legal AI.