When Banks Cannot Unilaterally Raise Interest Rates: The Florendo Rule

The Florendo Case: Protecting Borrowers from Unilateral Interest Rate Hikes

In Spouses Florendo v. Court of Appeals (G.R. No. 101771, December 17, 1996), the Supreme Court laid down an important rule for borrowers and banks alike: a bank cannot unilaterally raise the interest rate on an existing loan merely because the borrower resigned from employment, unless the loan contract expressly allows it and a valid Central Bank issuance supports it. The ruling reinforces the principle of mutuality of contracts — that both parties must agree to any change in their agreement.

The Facts: A Resignation Triggered a Rate Hike

Gilda Florendo was an employee of the Land Bank of the Philippines. In 1983, she obtained a housing loan of P148,000 from the bank's Provident Fund, payable over 25 years at 9% per annum. The loan was secured by a Real Estate Mortgage and covered by a Housing Loan Agreement.

In March 1985, after Gilda voluntarily resigned from the bank, Land Bank increased the interest rate on her loan from 9% to 17% per annum. The bank cited a Management Committee Resolution (ManCom Resolution No. 85-08) and a Provident Fund Memorandum Circular, which authorized higher rates for employees who resigned. The Florendos protested, arguing the increase was unilateral and had no basis in their contracts.

The Issue: Was the Unilateral Rate Increase Valid?

The central question was whether Land Bank had a valid legal basis to impose the increased interest rate on the Florendos' housing loan. The bank relied on an escalation clause in the Real Estate Mortgage, which stated that the interest rate would be subject to increases or decreases "in accordance with prevailing rules, regulations and circulars of the Central Bank" as the bank's Provident Fund Board may prescribe.

The Ruling: No Central Bank Issuance, No Valid Escalation

The Supreme Court ruled in favor of the Florendos, reversing the Court of Appeals. The Court held that while escalation clauses are generally valid, the bank could not apply the increase in this case for two key reasons.

First, the ManCom Resolution was not a valid basis for the escalation. The Court noted that the escalation clause specifically required any rate change to be in accordance with Central Bank rules, regulations, or circulars. The ManCom Resolution was merely an internal bank issuance — not a law or a resolution of the Monetary Board. The Court applied its earlier rulings in Banco Filipino Savings & Mortgage Bank v. Navarro and Philippine National Bank v. Court of Appeals, which disallowed interest rate increases based solely on a bank's own board resolutions or circulars.

Second, the Court found that no Central Bank issuance had been passed after the loan was perfected that would trigger the escalation clause. The loan was executed on July 20, 1983. By that time, Central Bank Circular No. 905 (lifting interest rate ceilings under the Usury Law) and other relevant issuances were already in effect. The bank knowingly agreed to a 9% rate despite being able to charge more. The Court reasoned that if the bank intended resignation to be a ground for escalation, it should have expressly included that condition in the loan agreement.

The Principle of Mutuality of Contracts

The Court also emphasized that the unilateral imposition of increased rates violated the principle of mutuality of contracts under Article 1308 of the Civil Code. A contract that makes fulfillment dependent on the uncontrolled will of one party is void. The Court quoted its ruling in PNB v. Court of Appeals: a contract where the weaker party is reduced to a "take it or leave it" position is a "veritable trap" that courts must protect against.

While the bank argued that Florendo, as a former employee, was knowledgeable about lending rates, the Court rejected this. She may have been on equal footing when entering the original loan, but she had no voice in the preparation and application of the ManCom Resolution that raised her rates.

Practical Takeaways

• Banks cannot raise interest rates based solely on internal resolutions. Any escalation must be anchored on a valid Central Bank issuance or a clear contractual ground.
• Escalation clauses are valid but strictly construed. A bank cannot rely on an escalation clause to impose conditions (like resignation) that were not expressly stated in the contract.
• Mutuality of contracts is a fundamental principle. Both parties must consent to changes in a loan agreement; unilateral impositions are void.
• Borrowers should read loan documents carefully. The absence of a specific ground for escalation (e.g., resignation) can protect a borrower from future rate hikes.
• Contracts of adhesion are interpreted against the drafter. Where a loan agreement is prepared by the bank, any ambiguity is resolved in favor of the borrower.

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