National Waterworks v. Quezon City
REITERATIONFacts
The Antecedents: The National Waterworks and Sewerage Authority (NWSA) owned parcels of land in Balara, Quezon City, for which it paid real property taxes from 1951 to 1962, totaling P984,494.54. Only the taxes for 1957 and 1961 were paid under protest. NWSA is a government corporation. Procedural History: Pursuant to a Supreme Court decision declaring NWSA exempt from real property tax as a government corporation owning properties of the Republic of the Philippines, NWSA demanded a refund. Upon Quezon City's failure to refund, NWSA filed an action for recovery. The Court of First Instance ordered Quezon City to refund the taxes, except those paid more than six years prior to the filing of the complaint. The Petition: Quezon City appealed, arguing that NWSA's exemption only started with Republic Act 3597 (June 22, 1963), that the prior Supreme Court ruling was inapplicable, that payment under protest was required for refund, and that exemption should not apply to lands leased to private entities.
Issue(s)
Whether the National Waterworks and Sewerage Authority (NWSA) is exempt from real property taxes under the Quezon City Charter. Whether the principle of 'stare decisis' makes the ruling in the 'Laguna' case applicable to Quezon City. Whether 'payment under protest' is a mandatory requirement for a tax refund suit under the Revised Charter of Quezon City (Republic Act No. 537). Whether the six-year prescriptive period under Article 1145 of the Civil Code bars the recovery of taxes paid in 1957.
Ruling
The Supreme Court modified the appealed judgment, allowing NWSA to recover only the realty taxes paid under protest for the year 1961, in the amount of P55,160.15. Taxes paid prior to 1957 were deemed prescribed, and taxes paid from 1958 to 1962, though potentially recoverable, were not allowed due to the lack of protest as required by law.
Ratio Decidendi
On Issue 1: The Court held that the properties of the National Waterworks and Sewerage Authority (NWSA) are exempt from real property tax as properties owned by the Republic of the Philippines under Section 47(a) of Republic Act No. 537. The Court rejected the argument that the 1963 amendment (Republic Act No. 3597) marked the beginning of the exemption, stating that the authority was already exempt under existing laws. This exemption applies regardless of whether the property is public or patrimonial in nature. Even if some lots were leased to private entities like the Capitol Hills Golf Club, they remained exempt so long as the ownership resided with the Republic through the NWSA. Therefore, the substantive right to exemption existed throughout the period in question. On Issue 2: The Court ruled that the statutory construction made in the 'Board of Assessment Appeals of Laguna' case applies under the principle of 'stare decisis'. While Quezon City was not a party to that specific litigation, the legal interpretation of NWSA’s tax status under Commonwealth Act No. 470 and similar charter provisions is a settled judicial precedent. 'Stare decisis' ensures consistency in the law, and once a statute has been interpreted by the Supreme Court, that interpretation becomes part of the legal system and applies to all similar circumstances. Consequently, the declaration of NWSA as a tax-exempt entity in the 'Laguna' case is binding and governs the present controversy regarding the validity of the tax assessment. On Issue 3: The Court emphasized that Section 63 of Republic Act No. 537 (the Revised Charter of Quezon City) is a jurisdictional limitation on courts, stating that 'No court shall entertain any suit' unless the tax was paid under protest. NWSA's contention that the payments were 'solutio indebiti' and thus exempt from the protest requirement was rejected. The Court noted that NWSA demonstrated its awareness of the protest requirement by actually paying under protest in 1957 and 1961. The 'solutio indebiti' concept from the Civil Code cannot override the specific procedural mandate of the City Charter, which requires a protest at the time of payment to challenge a tax assessment. Thus, any payments made without protest between 1958 and 1962 (except 1961) are not recoverable. On Issue 4: Regarding the 1957 taxes which were paid under protest, the Court ruled that the action for refund was barred by prescription. The parties had stipulated that the prescriptive period for the refund of erroneously paid taxes is six years under Article 1145 of the Civil Code. Since the 1957 tax payment occurred more than six years before the filing of the complaint on July 7, 1964, the right to recover that specific payment had already lapsed. This highlights that even a validly protested payment must be followed by a timely judicial action to be successful. Consequently, only the 1961 payment was both protested and within the six-year window for recovery.
Main Doctrine
Properties owned by a government corporation, even if patrimonial, are exempt from real property tax if they are considered properties of the Republic of the Philippines. Payments made without protest, except for those made under protest within the prescriptive period, are generally not recoverable, even if made erroneously, unless the exception of solutio indebiti applies and is properly invoked.