VAT Liability and Contractual Stipulations: Lessons from Mendiola v. Commerz Trading

The Supreme Court’s 2013 decision in Mendiola v. Commerz Trading Int’l., Inc. (G.R. No. 200895) offers a clear lesson for businesses: a contractual agreement on who bears the economic burden of a tax does not change who is legally liable to pay it to the government. The case shows how the VAT system operates when parties to a commercial transaction try to allocate tax responsibilities between themselves.

The Facts of the Case

Dr. Rolando Mendiola was the exclusive Philippine distributor of laparoscopic instruments made by Genicon, a Florida-based corporation. He entered into a Memorandum of Agreement (MOA) with Commerz Trading Int’l., Inc., allowing Commerz to use its name, office, invoices, and official receipts for the sale of Genicon products in the Philippines. In exchange, Commerz would receive P100,000.00 for every complete set sold.

When a hospital purchased a laparoscopic instrument for P2,600,000.00, Commerz issued the official receipt and collected the full amount from the buyer. Commerz then deducted its P100,000.00 fee and remitted only P2,430,000.00 to Mendiola—P70,000.00 short of what he expected. Commerz claimed the withheld amount represented part of the expanded VAT (EVAT) due on the transaction, which it said was Mendiola’s responsibility under the MOA.

The Issue Before the Court

The central question was whether Commerz had the right to retain the P70,000.00 from the sale proceeds. This required the Court to determine who bore the VAT burden as between the parties—and whether Commerz could unilaterally withhold the amount for tax purposes.

The Court’s Ruling

The Supreme Court denied Mendiola’s petition, ruling in favor of Commerz. The Court applied the basic principle that a contract is the law between the parties. Paragraph V of the MOA stated that “[a]ll taxes/expenses and expenses related to Genicon transactions shall be the responsibility of [Mendiola].” Mendiola himself admitted he was responsible for paying the EVAT, not Commerz, which merely acted as marketer.

However, the Court made an important distinction. While the MOA shifted the economic burden of the VAT to Mendiola, the legal liability to pay the VAT to the Bureau of Internal Revenue (BIR) fell on Commerz. This was because Commerz, as a VAT-registered entity, was the seller on record. It issued Official Receipt No. 11148 to evidence the sale, and the buyer paid the purchase price to Commerz.

The Court reasoned that allowing Mendiola to escape payment would operate to defraud the government of the correct amount of taxes due on the sale. It also cited the Civil Code provision on human relations, which requires every person to act with justice, give everyone his due, and observe honesty and good faith. The exact text of this provision is not reproduced in the decision, but the Court invoked it to underscore that contractual arrangements cannot be used to defeat the government’s right to collect correct taxes.

Because the MOA did not expressly authorize Commerz to withhold tax amounts from the proceeds, the Court allowed the retention of the P70,000.00 only for the purpose of paying it to the BIR as the estimated tax due on the sale. The Court also ordered that a copy of the Decision be forwarded to the BIR for appropriate action, noting a dispute over whether the official receipt issued was only for P520,000.00 instead of the full P2,600,000.00 purchase price.

Key Principles on VAT in Commercial Transactions

The decision clarifies several important points about VAT in the Philippines:

• VAT is a pass-on tax. The seller is legally liable to remit VAT to the BIR, even if the buyer or another party contractually assumes the economic burden.
• Contractual stipulations bind the parties. A contract can validly shift the economic burden of a tax between private parties, and courts will enforce such stipulations.
• Contracts cannot override tax law. No private agreement can change the statutory obligation of the seller to pay VAT to the government.
• Withholding requires authority. A party cannot unilaterally withhold amounts from proceeds unless the contract expressly authorizes it—though the Court here allowed retention for the specific purpose of remitting taxes to the BIR.

Practical Takeaways

• Draft tax allocation clauses carefully. Specify not only who bears the economic burden of taxes, but also how and when payments will be made or withheld.
• Understand the difference between economic burden and legal liability. Even if a contract shifts the cost of VAT to another party, the seller remains legally accountable to the BIR.
• Document VAT computations properly. Issue official receipts for the correct amount and maintain clear records to avoid disputes over tax due.
• Do not rely on verbal agreements. The Court enforced the written MOA provision on taxes; a clear paper trail protects all parties.
• Seek professional advice. VAT rules interact with contractual obligations in complex ways; consult counsel or a tax specialist before structuring transactions.

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