Breach of Trust: When Banks Overstep Their Authority Over Depositor Accounts

The relationship between a bank and its depositor is one of trust. When a bank exceeds its authority in deducting amounts from a depositor's account, it breaches that trust and may be held liable for damages. In Metropolitan Bank and Trust Company v. Larry Mariñas (G.R. No. 179105, July 26, 2010), the Supreme Court clarified the limits of a bank's right to offset deposits against loan obligations, emphasizing that this right is not absolute.

The Facts of the Case

In April 1998, Larry Mariñas returned to the Philippines from the United States and opened a dollar savings account with Metropolitan Bank and Trust Company (Metrobank) by depositing US$100,000.00. Shortly after, he obtained a loan of P2,300,000.00 from the bank, secured by a portion of his dollar deposits through a Deed of Assignment with Power of Attorney.

Mariñas later opened two more foreign currency accounts and obtained a second loan of P645,150.00, again secured by one of his dollar accounts. When he inquired about his deposits, he discovered that the bank had made deductions from all his accounts—including those not assigned as security for his loans.

The bank claimed the deductions were authorized by the Deeds of Assignment and were used to pay interest due on the loans. Mariñas disputed this, insisting he signed the loan documents in blank and that the deductions were unauthorized. He filed a complaint for damages against the bank and its branch manager.

The Issue

The central question before the Supreme Court was whether the bank had the authority to deduct from Mariñas's dollar accounts amounts representing interest on his loans, and whether the total depletion of his accounts was proper.

The Ruling

The Supreme Court affirmed with modification the Court of Appeals decision, holding that while the bank had authority to make deductions from the assigned accounts, it still had to account for any excess amounts taken.

Limited authority to deduct. The Court found that the Promissory Notes and Deeds of Assignment executed by Mariñas gave the bank a general lien and right of set-off over his deposits. Under Article 1159 of the Civil Code, obligations arising from contracts have the force of law between the parties and must be complied with in good faith. The bank was therefore authorized to deduct the principal amounts of the loans plus stipulated interest.

But the authority is not unlimited. The Court emphasized that while the bank had the right to offset unpaid interest against the deposits, the question of whether it acted judiciously was a different matter. The total depletion of Mariñas's accounts was not warranted when considering his total deposits inclusive of earned interest against his total obligations.

Fiduciary duty of banks. The Court reiterated that banks, as businesses affected with public interest, are under obligation to treat the accounts of their depositors with meticulous care, always mindful of the fiduciary nature of their relationship. The bank was ordered to account for the deposits and restore any excess amounts deducted, including earned interest.

Practical Takeaways

• Banks have a fiduciary duty to depositors and must exercise meticulous care in handling accounts, even when contractually authorized to make deductions.
• Contractual authority has limits. A bank's right to offset deposits against loans is not absolute; it must act judiciously and cannot deplete accounts beyond what is necessary to satisfy the obligation.
• Document everything. Depositors should keep copies of all loan documents and account statements, and should review them carefully before signing.
• Excess deductions are recoverable. If a bank deducts more than what is owed, the depositor can compel the bank to account for and return the excess, plus earned interest.
• Damages may be awarded. Banks that breach their fiduciary duty may be liable for moral and exemplary damages, as well as attorney's fees, especially when depositors are compelled to litigate to protect their interests.

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