Contractual Obligations Upholding Agreed Upon Interest Rates in Construction Disputes

The Supreme Court, in Arwood Industries, Inc. v. D.M. Consunji, Inc. (G.R. No. 142277, December 11, 2002), affirmed that parties to a construction contract are bound by their agreed-upon interest rates for delayed payments. The ruling reinforces the principle that contracts are the law between the parties, and courts will uphold stipulated penalty interest even when the exact nature of the unpaid amount is disputed.

The case arose from a Civil, Structural and Architectural Works Agreement dated February 6, 1989, between Arwood Industries, Inc. (owner) and D.M. Consunji, Inc. (contractor) for the construction of the Westwood Condominium in Greenhills, San Juan. The contract price was P20,800,000.00. After completion of the project, a balance of P962,434.78 remained unpaid despite repeated demands.

The Contractual Dispute

The contractor filed a complaint for recovery of the unpaid balance, specifically praying for interest at 2% per month from November 1990 until full payment. The trial court ruled in favor of the contractor, awarding the balance with 2% monthly interest and attorney's fees. The Court of Appeals affirmed the interest award but deleted the attorney's fees for lack of proper justification in the body of the decision.

The owner appealed to the Supreme Court, arguing that the interest provision in the contract applied only to "monthly progress billings" and not to the final balance claimed. The owner also contended that the interest provision was not formally offered as evidence during trial.

The Contract as Law Between Parties

The Supreme Court rejected the owner's arguments. The Court emphasized that when parties reduce their agreement to writing, that document contains all the terms agreed upon, and no other evidence of those terms can be presented. The contract is the best evidence of the parties' intention.

The Court found that the owner's delay in paying the balance was never disputed. From the moment the contractor completed the construction and the owner refused to pay in full, there was delay on the owner's part. The Court noted that delays in law are odious, and the contractor suffered damages from the owner's failure to comply with its obligation on time.

Interpreting "Monthly Progress Billings"

The Court addressed the owner's argument that the unpaid amount did not constitute "monthly progress billings." The Court found this to be a "semantics problem." The phrase "monthly progress billings" refers to a portion of the contract price payable by the owner to the contractor based on the percentage of completion of the project. It represents that portion of the contract price still to be paid as work progresses, after the downpayment is made.

The Court reasoned that if the amount claimed was not the monthly progress billings provided in the contract, then what did it represent? The owner failed to supply a convincing answer. Even assuming a different interpretation, the contract provision was stipulated for the contractor's benefit and must be interpreted in favor of the contractor.

Legal Basis for Interest Recovery

The Court also noted that even without the contractual stipulation, the contractor could still recover interest under Article 2209 of the Civil Code. This provision states that when an obligation consists of the payment of a sum of money and the debtor incurs delay, the indemnity for damages shall be the payment of the interest agreed upon, and in the absence of stipulation, the legal interest of six percent per annum.

The Court cited State Investment House, Inc. v. Court of Appeals (198 SCRA 390 [1991]), which explained that the appropriate measure of damages for delay in paying a sum of money is the penalty interest at the rate agreed upon. Only in the absence of a stipulated rate would the regular monetary interest or legal interest apply.

Practical Takeaways

• Contracts bind parties to their stipulated terms. Courts will enforce agreed-upon interest rates for delayed payments even when the exact nature of the unpaid amount is disputed.
• Written agreements are conclusive. When a contract is reduced to writing, it is considered to contain all terms agreed upon, and parties cannot introduce evidence of other terms.
• Timely objections are essential. A party cannot raise objections to contract provisions for the first time on appeal. Failure to object during trial means the contract and its contents form part of the evidence.
• Interest provisions apply to portions of the contract price. Monthly progress billings include the balance of the contract price payable as work progresses, not just interim billing statements.
• Even without a stipulation, interest may be recovered. Article 2209 of the Civil Code provides for legal interest of six percent per annum when no rate was agreed upon.

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