Letter of Undertaking Enforceability and Independence From Negotiable Instruments

In Velasquez v. Solidbank Corporation (G.R. No. 157309, March 28, 2008), the Supreme Court settled an important question in Philippine commercial law: does a bank's failure to protest a dishonored sight draft extinguish a borrower's liability under a separate letter of undertaking? The Court ruled it does not. A letter of undertaking is an independent contract with its own obligations, and a party who has benefited from it cannot escape liability by pointing to defects in the underlying negotiable instrument.

Facts of the Case

Petitioner Marlou Velasquez, engaged in the export business under the name Wilderness Trading, sold dried sea cucumber to a South Korean buyer. To facilitate payment, the buyer opened a letter of credit with the Bank of Seoul. Velasquez obtained pre-shipment financing from Solidbank Corporation for his export transactions.

For his third shipment, Velasquez negotiated a documentary sight draft drawn on the letter of credit. As a condition for the bank to advance payment, he executed a letter of undertaking. In that document, he warranted that the draft would be accepted and paid according to its tenor, and he agreed to pay the bank on demand the full amount of the draft if it was dishonored for any reason.

The bank advanced the value of the shipment. However, the Bank of Seoul dishonored the sight draft by non-acceptance, citing late shipment, a forged inspection certificate, and other discrepancies. The buyer also issued a stop payment order because most of the bags shipped contained soil instead of dried sea cucumber. The bank demanded restitution, and when Velasquez failed to pay, it filed a collection suit.

The Issue

The central question was whether Velasquez could be held liable under the letter of undertaking even though the bank failed to protest the dishonor of the sight draft, which would ordinarily discharge him from liability under the Negotiable Instruments Law (NIL).

Velasquez argued that the letter of undertaking was merely an accessory contract to the sight draft. Since the bank's failure to protest discharged him from liability on the draft, he claimed he could not be held liable on the accessory contract either.

The Ruling

The Supreme Court denied the petition and affirmed the Court of Appeals' decision holding Velasquez liable. The Court made two key rulings.

First, the Court acknowledged that Velasquez was discharged from liability under the sight draft itself. Under Section 152 of the NIL, a foreign bill of exchange that is dishonored by non-acceptance must be duly protested. A sight draft payable outside the Philippines is a foreign bill. The bank's failure to protest the non-acceptance resulted in the discharge of the drawer from liability on the instrument.

Second, and more importantly, the Court held that this discharge did not extinguish Velasquez's liability under the letter of undertaking. The letter of undertaking is a separate and independent contract from the sight draft. It is not merely an accessory obligation. The Court explained:

"The liability of petitioner under the letter of undertaking is direct and primary. It is independent from his liability under the sight draft. Liability subsists on it even if the sight draft was dishonored for non-acceptance or non-payment."

The Court rejected the argument that Velasquez was a mere guarantor. A person cannot be both the primary debtor and the guarantor of his own debt. The letter of undertaking was supported by consideration: the bank agreed to advance payment only because Velasquez promised to reimburse the amount if the draft was dishonored.

The Court also held that the bank need not prove that Velasquez violated the letter of credit. Mere non-acceptance of the sight draft was sufficient to trigger liability under the letter of undertaking. The terms of the undertaking were clear, and the parties are bound by what they expressly stipulated.

Practical Takeaways

• A letter of undertaking is an independent contract. Its enforceability does not depend on the validity or status of the underlying negotiable instrument.
• Failure to protest a foreign bill discharges the drawer only on the instrument itself. It does not extinguish separate contractual obligations the party may have signed.
• Banks can structure credit accommodations with layered protection. A letter of undertaking gives the bank a direct contractual claim that survives defects in the negotiable instrument process.
• Parties who benefit from advance payments cannot later disown their contractual promises. The Court emphasized that Velasquez received the advance and cannot impugn the contract after gaining its benefit.
• For lenders, clear drafting matters. A well-drafted letter of undertaking that states liability is "direct and primary" and independent of the instrument will be enforced according to its terms.

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