Mindanao Shopping Destination Corporation vs. Duterte

Section 191 of the Local Government Code, which limits the adjustment of tax rates to not more than 10% of the rates fixed under the Code once every five years, does not apply to an ordinance that represents the initial implementation of the LGC rather than an upward adjustment of a tax already imposed in accordance with the LGC. The correction of an erroneous taxpayer classification — separating retailers from wholesalers pursuant to distinct statutory definitions — is a rectification, not a prohibited unilateral increase, even if it results in a higher effective tax rate for the reclassified taxpayers. However, at initial implementation, the local government must begin at the minimum rate prescribed by the Code and may only apply the 10% adjustment thereafter on a five-year cycle.

Davao City's old tax ordinance, Ordinance No. 230, Series of 1990, was enacted before the effectivity of the Local Government Code of 1991 (Republic Act No. 7160) on January 1, 1992. Under that old ordinance, wholesalers and retailers were grouped as one class and taxed at the same rate — 50% of 1% (0.5%) of gross receipts exceeding ₱2,000,000.00. The LGC, however, introduced separate definitions for "wholesale" and "retail" under Section 131 and prescribed different tax bases and rates for each under Sections 142 and 143. For over a decade, Davao City did not revise its ordinance to conform to the LGC, resulting in retailers paying lower taxes than what the LGC authorized. In 2005, the Sangguniang Panglungsod enacted Ordinance No. 158-05, which for the first time implemented the LGC's classification and tax treatment for retailers.

Parties: Petitioners — Mindanao Shopping Destination Corporation, Ace Hardware Philippines, Inc., International Toyworld, Inc., Star Appliance Center, Inc., Surplus Marketing Corporation, Watsons Personal Care Stores (Philippines), Inc., and Supervalue, Inc. — are domestic corporations engaged in retail business within Davao City. Respondents are then-Davao City Mayor Rodrigo R. Duterte, then-Vice Mayor Sara Duterte as Presiding Officer of the Sangguniang Panlungsod, and the Sangguniang Panlungsod itself.

The Old Tax Ordinance (Ordinance No. 230, Series of 1990): Under the pre-LGC ordinance, Davao City classified wholesalers and retailers as one category and imposed a uniform business tax of 50% of 1% (0.5%) on gross sales or receipts exceeding ₱2,000,000.00. This ordinance was enacted in 1990, before the LGC took effect on January 1, 1992.

The Assailed Ordinance (Ordinance No. 158-05, Series of 2005): Section 69 of the new Revenue Code imposed distinct graduated business tax schedules: Section 69(b) taxed wholesalers, distributors, or dealers at 55% of 1% on gross receipts exceeding ₱2,000,000.00, while Section 69(d) taxed retailers at 2% on gross receipts up to ₱400,000.00 and 1.5% on the excess over ₱400,000.00.

The Amended Ordinance (Ordinance No. 0253, Series of 2006): While the appeal was pending, Davao City reduced the retailer tax rate on excess gross receipts from 1.5% to 1.25% (1¼%).

Impact on Petitioners: Petitioners, who previously paid 0.5% of gross receipts under the old ordinance, now faced a tax rate of 1.5% (later 1.25%) on gross receipts exceeding ₱400,000.00 — an effective increase of approximately 200% from the prior rate. Petitioners did not dispute their classification as retailers.

• Violation of Section 191 of the LGC: Petitioners argued that the maximum adjustment allowed under Section 191 is 10% of the rates fixed under the Code once every five years, or 0.15% of the maximum 1.5% rate for cities. The assailed ordinance increased the tax rate on retailers from 0.5% to 1.5% (later 1.25%), far exceeding the 0.15% maximum allowable adjustment, in violation of Section 191 in relation to Sections 143 and 151 of the LGC.

• Unconstitutionality and Illegality: Petitioners maintained that the tax rate increase was unjust, excessive, oppressive, confiscatory, and contrary to the 1987 Constitution and the provisions of the LGC. They prayed that Section 69(d) be declared null and void ab initio.

• Initial Implementation, Not an Adjustment: Respondents maintained that the 2005 ordinance was Davao City's initial implementation of the LGC's tax provisions, not an upward adjustment of an existing LGC-compliant tax. The old 1990 ordinance predated the LGC and had erroneously lumped retailers with wholesalers. Section 191, which governs adjustments, was therefore inapplicable.

• Tax Rate Below LGC Ceiling: Respondents pointed out that the amended tax rate of 1.25% on retailers with gross receipts exceeding ₱400,000.00 was below the 1.5% maximum rate that highly urbanized cities may impose under Sections 143(d) and 151 of the LGC (50% above the 1% municipal maximum). Thus, no violation of the LGC's rate ceilings occurred.

• Applicability of Section 191: Whether Section 191 of the Local Government Code, which limits tax rate adjustments to not more than 10% once every five years, applies to Davao City Ordinance No. 158-05, Series of 2005.

• Validity of the Tax Rate Increase: Whether the increase in the business tax rate imposed on retailers from 0.5% to 1.5% (later 1.25%) under the assailed ordinance was valid and in accordance with the Local Government Code.

• Procedural Issues: Whether the Court of Appeals erred in failing to address procedural deficiencies relating to the timeliness of petitioners' appeal before the DOJ.

• Procedural Issues: The issue of timeliness of appeal was deemed moot and academic. Both the Office of the President and the Court of Appeals had decided the appeal on the merits rather than on technical grounds. The Supreme Court proceeded directly to the substantive issues.

• Applicability of Section 191: Section 191 of the LGC did not apply. Two requirements must concur for Section 191 to operate: (i) a first tax ordinance that imposes a tax in accordance with the provisions of the LGC, and (ii) a second tax ordinance that adjusts the tax rate fixed by the first. Neither requirement was present. The old 1990 ordinance was enacted before the LGC and therefore was not imposed "in accordance with the provisions of the LGC." The 2005 ordinance was the first to impose the retailer tax pursuant to the LGC. It introduced both a new tax base and a new tax rate appropriate for retailers, not merely a change in rate. Section 191 contemplates only a change in tax rate for an existing LGC-compliant tax.

• Validity of the Reclassification and Resulting Increase: No prohibited unilateral increase occurred. The 2005 ordinance merely rectified the erroneous classification of wholesalers and retailers that had persisted under the old ordinance. Under the LGC, "wholesale" and "retail" are distinctly defined (Section 131) and subjected to different tax treatments (Sections 142 and 143). The differential classification rests on substantial distinctions and satisfies the requisites of valid classification: it is germane to the purpose of the law, not limited to existing conditions only, and applies equally to all members of the same class. The resulting increase in retailers' tax liability was merely incidental to the correction. Estoppel does not lie against the government on matters of taxation.

• Proper Initial Tax Rate: Although the city validly implemented the LGC, it could not impose a straight 1.25% rate upon initial implementation. Davao City was required to start at the minimum rate of 1% as provided under Section 143(d) of the LGC. Considering that 11 years had elapsed since implementation in 2006, two five-year adjustment cycles had passed, yielding an allowable adjusted rate of 1.21% (1.0% from 2006-2011; 1.1% from 2011-2016; 1.21% for 2017-2021). The rate of 1.25% was therefore reduced to 1.21%.

• Requisites for Application of Section 191, LGC — Section 191, which limits tax rate adjustments to 10% once every five years, applies only when: (i) there is an existing tax ordinance that imposes a tax in accordance with the provisions of the LGC, and (ii) a subsequent tax ordinance adjusts the tax rate fixed by the first. Both requisites must concur. An ordinance that represents the initial implementation of the LGC — introducing a new tax base and tax rate consistent with the Code — is not an "adjustment" within the meaning of Section 191.

• Rectification of Erroneous Classification Not an "Adjustment" — When a local government corrects a pre-LGC ordinance that erroneously grouped distinct classes of taxpayers (e.g., wholesalers and retailers) to conform with the LGC's separate definitions and tax treatments, the resulting increase in tax liability for the reclassified group is incidental and does not constitute a prohibited unilateral increase of tax rates. Such reclassification is a rectification, not an adjustment subject to the 10% cap.

• Validity of Classification for Taxation — A tax ordinance based on reasonable classification does not violate the equal protection clause. The four requisites for valid classification are: (1) it must rest on substantial distinctions; (2) it must be germane to the purpose of the law; (3) it must not be limited to existing conditions only; and (4) it must apply equally to all members of the same class. The LGC's differentiation between wholesalers and retailers, based on whether the purchaser buys for consumption or resale, satisfies all four requisites.

• Non-Applicability of Estoppel Against the Government in Taxation — The government is not estopped by its failure to immediately implement a tax law. Taxes are the lifeblood of the government, and the State cannot be precluded from correcting an erroneous tax classification that resulted in lower revenues, even if the error persisted for over a decade.

• Presumption of Constitutionality of Ordinances — Every law, including ordinances, is presumed valid. To strike down an ordinance as unconstitutional, the petitioner must prove a clear and unequivocal breach of the Constitution. In case of doubt, the ordinance must be sustained.

• Initial Implementation Must Begin at Minimum Rate — At the initial implementation of the LGC's tax provisions, a local government unit must begin at the minimum rate prescribed by the Code. It may only apply the 10% adjustment on a cumulative five-year cycle thereafter.

• "Section 191 has no bearing in the instant case because what actually took place in the questioned Ordinance was the correction of an erroneous classification, and not an upward adjustment or increase of tax rates. The fact that there occurred an increase in payment due to the reclassification is of no moment, because: (1) reclassification is not prohibited; (2) reclassification was made to effect a correction; and (3) the taxes imposed upon the reclassified taxpayers, was not amended or increased from that stated in the Local Government Code." — Quoted with approval from the Court of Appeals' ruling, this passage captures the ratio decidendi distinguishing between an impermissible unilateral rate increase and a permissible rectification of classification.

• "To rule otherwise is tantamount to pronouncing that Davao City can no longer correct the apparent error in classifying wholesaler and retailer in the same category under its old tax ordinance. Such proposition runs counter to the well-entrenched principle that estoppel does not apply to the government, especially on matters of taxation." — The Court's statement affirming that local governments retain the power to correct pre-LGC classification errors despite prolonged non-implementation.

• "Taxes are the nation's lifeblood through which government agencies continue to operate and with which the State discharges its functions for the welfare of its constituents." — A restatement of the lifeblood doctrine applied in the context of local government taxation.

• PLDT, Inc. vs. City of Davao, 399 SCRA 442 — Cited by the Office of the President and referenced by the Court for the rule that statutes in derogation of sovereignty, such as those containing exemption from taxation, should be strictly construed in favor of the State.

• Commissioner of Internal Revenue v. Petron Corporation, 685 Phil. 118 (2012) — Cited for the lifeblood doctrine supporting the principle that estoppel does not apply to the government in taxation matters.

• Ferrer, Jr. v. City Mayor of Quezon City, et al., G.R. No. 210551, June 30, 2015, 760 SCRA 652 — Cited for the requirements of a valid and reasonable classification for taxation purposes and the principle that inequities from singling out one class for taxation do not infringe constitutional limitations.

• Smart Communications, Inc. v. Municipality of Malvar, Batangas, 727 Phil. 430 (2014) — Cited for the rule that a clear and unequivocal breach of the Constitution is required to nullify a law; doubtful proof of unconstitutionality demands that legislation be sustained.

• Lawyers Against Monopoly and Poverty (LAMP) v. Secretary of Budget and Management, 686 Phil. 357 (2012) — Cited for the presumption of constitutionality and the high evidentiary threshold required to overcome it.

• Section 191, Republic Act No. 7160 (Local Government Code) — Authorizes local government units to adjust tax rates not oftener than once every five years, but in no case shall such adjustment exceed 10% of the rates fixed under the Code. Held inapplicable where the ordinance represents initial implementation of the LGC rather than an adjustment of an existing LGC-compliant tax.

• Section 143(d), Republic Act No. 7160 — Prescribes the municipal business tax rates on retailers: 2% on gross sales or receipts of ₱400,000.00 or less; 1% on gross sales or receipts exceeding ₱400,000.00. Serves as the baseline rate for cities, which may impose up to 50% more under Section 151, or 1.5% maximum. The Court held that initial implementation must begin at 1%.

• Section 151, Republic Act No. 7160 — Provides that highly urbanized and independent component cities may levy taxes exceeding the maximum rates allowed for provinces or municipalities by not more than 50%, except for professional and amusement taxes. Confers authority on Davao City to impose up to 1.5% on retailers.

• Section 131, Republic Act No. 7160 — Defines "retail" as a sale where the purchaser buys the commodity for his own consumption, and "wholesale" as a sale where the purchaser buys or imports commodities for resale to persons other than the end user. These definitions justified the separate classification and tax treatment of retailers and wholesalers.

• Section 142, Republic Act No. 7160 — Provides the scope of taxing powers for municipalities, including the graduated tax schedule for wholesalers, distributors, or dealers, further supporting the distinct treatment of these business activities.

Chief Justice Maria Lourdes P.A. Sereno, Associate Justice Antonio T. Carpio, Associate Justice Presbitero J. Velasco, Jr., Associate Justice Teresita J. Leonardo-De Castro, Associate Justice Lucas P. Bersamin, Associate Justice Mariano C. Del Castillo, Associate Justice Jose Catral Mendoza, Associate Justice Bienvenido L. Reyes, Associate Justice Estela M. Perlas-Bernabe, Associate Justice Marvic M.V.F. Leonen (with a separate Concurring Opinion), Associate Justice Francis H. Jardeleza, Associate Justice Alfredo Benjamin S. Caguioa, Associate Justice Samuel R. Martires, and Associate Justice Noel Gimenez Tijam.

• N/A — The decision was unanimous; no dissenting opinions were registered. (Justices on official leave or wellness leave are noted in the footnotes but not identified by name in the concurrence list.)