Title
Philippine National Bank vs. Court of Appeals
Case
G.R. No. 107569
Decision Date
Nov 8, 1994
PNB unilaterally raised interest rates on a loan secured by mortgages; Supreme Court ruled increases unauthorized, affirming mutuality of contracts and requiring borrower consent.

Case Summary (G.R. No. 153802)

Facts and Contractual Stipulations

• April 7, 1982 – Borrowers obtained a P50,000 loan at 12% annual interest, amortizable over three years, secured by (a) a real estate mortgage on 1.5542 hectares of unregistered agricultural land and (b) a chattel mortgage on a thermo-plastic forming machine.
• February 17, 1983 – An additional P50,000 loan was granted, maturing April 1, 1985, under identical terms and secured by two parcels of registered land in Guadalupe, Cebu City.
• Escalation Clauses – The Credit Agreement, Promissory Notes, and Mortgage Contracts each contained a stipulation allowing the bank to increase interest “within the limits allowed by law” and to decrease it correspondingly if regulatory ceilings were lowered.
• August 1, 1984 – PNB unilaterally raised the rate to 25% per annum plus a 6% penalty on past due amounts; October 15, 1984 to 30%; October 25, 1984 to 42%.
• December 1985 – Outstanding principal remained P62,830.32 after payments; interest and penalties totaled P57,488.89. Borrowers’ requests to restore the 12% rate and condone penalties were refused.

Procedural History

• December 15, 1987 – Borrowers filed a complaint for specific performance and damages in RTC, Branch 7, Cebu City (Civil Case No. CEB-5610).
• February 28, 1990 – Trial court dismissed the complaint.
• October 15, 1992 – The Court of Appeals set aside the dismissal as to PNB and ordered reapplication of the 12% rate, rebate of excess interest and charges, and interest on any remaining balance at 12%.
• November 8, 1994 – The Supreme Court affirmed the appellate ruling and denied PNB’s petition.

Legal Issue

Does an escalation clause that permits a bank to adjust interest rates “within the limits allowed by law” authorize unilateral increases without the borrower’s consent, or must any adjustment be mutually agreed upon?

Applicable Law

• 1987 Philippine Constitution – mandates due process and respects property and contractual rights (Art. III, Sec. 1).
• Civil Code of the Philippines, Article 1308 – “The contract must bind both contracting parties; its validity or compliance cannot be left to the will of one of them.”
• Presidential Decree No. 1684 (as amended Act No. 2655), Sec. 7-a – Parties may stipulate interest adjustments corresponding to changes in maximum legal rates, provided the agreement also stipulates reductions when ceilings are lowered and that adjustments take effect upon regulatory change.
• Central Bank Circular No. 905 (1982), Sec. 5 – Abolishes ceilings on interest and charges for loans, but does not authorize unilateral rate hikes without borrower assent.

Analysis

• Mutuality of Contracts – A valid adjustment clause under P.D. 1684 requires mutual assent; unilateral imposition negates the element of agreement essential to contract law under Article 1308.
• Contract of Adhesion – Allowing one party unchecked power to alter an essen

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