Demurrage and Detention Fees: Supreme Court Clarifies Tax Treatment for International Shipping

The Supreme Court has settled a significant tax question for international shipping lines operating in the Philippines: demurrage and detention fees are subject to the regular corporate income tax rate, not the preferential rate for Gross Philippine Billings (GPB). The ruling in Association of International Shipping Lines, Inc. v. Secretary of Finance clarifies how these fees should be treated under the National Internal Revenue Code (NIRC) and affirms the validity of Revenue Regulation (RR) 15-2013.

The Dispute: Which Tax Rate Applies?

The case arose when the Association of International Shipping Lines (AISL) challenged RR 15-2013, which classified demurrage and detention fees as income subject to the regular corporate income tax rate rather than the preferential rate for GPB. Under Section 28(A)(I)(3a) of the NIRC, as amended by Republic Act (RA) 10378, GPB refers to gross revenue from the carriage of passengers, cargo, or mail originating from the Philippines up to final destination, regardless of where the sale or payment occurs.

AISL argued that these fees should form part of GPB, entitling carriers to the lower tax rate. The petitioners also invoked res judicata, citing a previous court decision that allegedly treated similar fees as part of GPB. They further claimed that RR 15-2013 was invalid for lack of public hearing.

Res Judicata Did Not Apply

The Supreme Court rejected the res judicata argument. The doctrine prevents relitigation of issues conclusively decided by a court, but it requires identity of parties and subject matter. Here, the Secretary of Finance was not a party in the previous case, and the present case challenged a different issuance—RR 15-2013, not the earlier Revenue Memorandum Circular 31-2008.

Citing Heirs of Marcelino Doronio v. Heirs of Fortunato Doronio, the Court emphasized that judgments bind only the parties involved. Since the respondents were not parties in the earlier case, they were not bound by that decision.

Procedural Remedy: From Declaratory Relief to Prohibition

The petitioners filed a petition for declaratory relief, but the Court noted that this remedy is inappropriate for questioning tax liabilities under Commonwealth Act (CA) 55. However, recognizing the far-reaching implications of RR 15-2013 for the maritime industry and the long-pending nature of the case, the Court exercised its discretion to treat the petition as one for prohibition. This approach, drawn from Diaz v. Secretary of Finance, allows the Court to resolve substantive questions when the case has significant public importance.

Why Demurrage and Detention Fees Fall Outside GPB

The core issue was whether RR 15-2013 correctly interpreted the law. The Court analyzed the statutory definition of GPB, which covers revenue from passenger, cargo, or mail transportation. Applying the principle of expressio unius est exclusio alterius—the express mention of one thing excludes others—the Court reasoned that demurrage and detention fees, not being derived from transportation itself, fall outside GPB.

The Court defined these fees, quoting Black's Law Dictionary: demurrage is compensation due to the shipowner for the vessel's detention beyond the agreed time under the contract of affreightment or charter-party. Detention fees similarly compensate carriers for the use of containers beyond the allotted free time. These are income from the use of property, not from carriage, and therefore subject to the regular corporate income tax rate.

RR 15-2013 Is an Interpretative Regulation

The Court also addressed the procedural objections. RR 15-2013 is an interpretative regulation—it clarifies existing statutory provisions rather than creating new rules. As such, it does not require a public hearing or registration with the U.P. Law Center for its effectivity. Citing ASTEC v. ERC, the Court noted that not all agency rules must be filed with the U.P. Law Center; interpretative regulations and internal rules are exempt.

Practical Takeaways

• Tax rate confirmed: International shipping carriers must apply the regular corporate income tax rate to demurrage and detention fees collected in the Philippines.
• Scope of GPB is narrow: GPB covers only revenue from transporting passengers, cargo, or mail; fees for vessel or container detention are separate income.
• Interpretative regulations stand: RR 15-2013 remains valid and binding, having been issued to clarify, not expand, RA 10378.
• Compliance matters: Shipping lines should review their tax filings to ensure demurrage and detention fees are properly reported and taxed.
• Precedents are limited: Court decisions bind only the parties in that case; tax regulations may still be challenged on their own merits.

This ruling provides much-needed clarity for international carriers, confirming that income from the use of property within the Philippines is taxable under standard income tax rules. Shipping companies should ensure their tax compliance reflects this distinction.

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