KEPCO Philippines Corporation vs. Commissioner of Internal Revenue

Compliance with the invoicing requirements under Section 4.108-1 of RR No. 7-95 — including the printing of "TIN-VAT" and the imprinting of "zero-rated" on VAT invoices and official receipts covering zero-rated sales — is mandatory for a VAT-registered taxpayer claiming a refund of unutilized input VAT attributable to zero-rated sales. The revenue regulation neither expanded nor supplanted the NIRC but merely supplemented it, and non-compliance results in the disallowance of the corresponding input VAT claim.

KEPCO Philippines Corporation is a VAT-registered independent power producer engaged in generating electricity, selling exclusively to the National Power Corporation (NPC), an entity exempt from taxes under Section 13 of Republic Act No. 6395. Kepco's sales to NPC were approved as zero-rated under VAT Ruling 64-01 issued by the BIR. The dispute centers on whether Kepco properly substantiated its claim for refund of unutilized input VAT for taxable year 2002 by complying with the invoicing requirements prescribed by Revenue Regulations No. 7-95, particularly Section 4.108-1 thereof.

KEPCO Philippines Corporation is a VAT-registered independent power producer engaged in the business of generating electricity, selling exclusively to the National Power Corporation (NPC), an entity exempt from taxes under Section 13 of Republic Act No. 6395. On December 4, 2001, Kepco filed an application for zero-rated sales with Revenue District Office No. 54 of the Bureau of Internal Revenue. The application was approved under VAT Ruling 64-01.

For taxable year 2002, Kepco filed four Quarterly VAT Returns declaring zero-rated sales in the aggregate amount of ₱3,285,308,055.85, distributed across the four quarters: ₱651,672,672.47 for the first quarter, ₱725,104,468.99 for the second, ₱952,053,527.29 for the third, and ₱956,477,387.10 for the fourth. In the course of doing business with NPC, Kepco claimed expenses sustained in connection with the production and sale of electricity, calculating that it paid input VAT amounting to ₱11,710,868.86 attributable to its zero-rated sales. The corresponding purchases totaled ₱117,108,688.51 across the four quarters.

On April 20, 2004, Kepco filed before the Commissioner of Internal Revenue a claim for tax refund covering unutilized input VAT payments attributable to its zero-rated sales transactions for taxable year 2002. Two days later, on April 22, 2004, it filed a petition for review before the CTA, docketed as C.T.A. Case No. 6965. During the hearing, Kepco presented court-commissioned Independent Certified Public Accountant Victor O. Machacon, who audited its documentary evidence consisting of official receipts, invoices, and vouchers.

The CTA Second Division found that out of the total declared zero-rated sales of ₱3,285,308,055.85, Kepco only properly substantiated ₱1,451,788,865.52, yielding a substantiation rate of 44.19%. The Division likewise disallowed ₱5,170,914.20 of Kepco's claimed input VAT due to failure to comply with the invoicing requirements of Section 4.108-1 of RR No. 7-95. Specifically, input VAT on purchases supported by invoices or official receipts where "TIN-VAT" was merely stamped — not printed — was disallowed, as was input VAT on purchases supported by invoices or receipts that were not marked "NON-VAT" and thus not considered "VAT Invoices." After applying the 44.19% substantiation rate to the validly supported input VAT of ₱6,539,954.66, the CTA Second Division partially granted the claim, ordering a refund of ₱2,890,005.96.

Kepco moved for partial reconsideration, which was denied. On appeal to the CTA En Banc, Kepco argued that the CTA Second Division erred in not considering an additional ₱8,691,873.81 as refundable. The CTA En Banc dismissed the petition, ruling that Kepco must comply with the substantiation requirements under RR No. 7-95. CTA Presiding Justice Ernesto Acosta concurred with the majority on the lack of proper substantiation but dissented on the denial of certain claims, arguing that the law does not allow automatic invalidation of receipts/invoices not imprinted with "TIN-VAT" and that invoices and official receipts are used interchangeably under the law, such that both can validly substantiate a claim.

• Validity of RR 7-95: Petitioner argued that Section 4.108-1 of RR No. 7-95 cannot be considered valid legislation because Sections 113 and 237 of the 1997 NIRC do not mention the requirement of imprinting the word "zero-rated" on purchases covering zero-rated transactions, and administrative rules cannot expand the letter and spirit of the law they seek to enforce.
• Penalty Rather Than Denial: Petitioner argued, citing Atlas Consolidated Mining & Development Corporation vs. Commissioner of Internal Revenue, that non-compliance with invoicing requirements should result only in penalties under Section 264 of the 1997 NIRC, not in the denial of the refund claim.
• TIN-VAT Imprinting Not Required: Petitioner insisted that Section 4.108-1 of RR No. 7-95 does not require the word "TIN-VAT" to be imprinted on a VAT-registered person's supporting invoices and official receipts, and thus its ₱4,720,725.63 claim of input tax should not be denied.
• Interchangeability of Invoices and Receipts: Petitioner argued that under Section 113(A) of the 1997 NIRC, invoices and official receipts are used interchangeably for purposes of substantiating input VAT, so the CTA should have accepted official receipts for purchases of goods (₱64,509.50) and invoices for purchases of services (₱256,689.98).

• Strict Construction of Tax Refunds: Respondent averred that claims for refund are strictly construed against the taxpayer as they are similar to tax exemptions, and that the burden to show that the taxes were erroneous or illegal lies upon the taxpayer. Failure on the part of Kepco to prove the same was fatal to its cause of action because it was its duty to prove the legal basis of the amount being claimed as a tax refund.

• Procedural Impropriety: Whether the petition, denominated as a Rule 45 petition but raising grave abuse of discretion grounds proper only under Rule 65, should be dismissed outright on procedural grounds.
• Validity of Invoicing Requirements: Whether Section 4.108-1 of RR No. 7-95 validly requires the imprinting of the word "zero-rated" on invoices and official receipts covering zero-rated sales as a substantiation requirement for input VAT refund.
• TIN-VAT Printing Requirement: Whether the CTA correctly disallowed input VAT claims supported by invoices and official receipts where "TIN-VAT" was not printed thereon.
• Distinction Between Invoices and Receipts: Whether the CTA correctly distinguished between VAT invoices (for goods) and VAT official receipts (for services) as supporting documents for input VAT refund claims.

• Procedural Impropriety: Yes. The petition could be denied outright because imputing jurisdictional errors such as grave abuse of discretion is not proper in a Rule 45 petition, which is a mode of appeal involving purely questions of law, not an original action for certiorari under Rule 65.
• Validity of Invoicing Requirements: No (against petitioner). Section 4.108-1 of RR No. 7-95 neither expanded nor supplanted the tax code but merely supplemented what the tax code already defined and discussed; the requirement to imprint "zero-rated" on invoices covering zero-rated sales is a valid substantiation requirement.
• TIN-VAT Printing Requirement: No (against petitioner). The regulation specifically requires VAT-registered persons to print — not merely stamp — TIN-VAT on invoices or receipts; purchases supported by invoices where TIN-VAT is not printed shall not give rise to any input VAT.
• Distinction Between Invoices and Receipts: No (against petitioner). Under Section 113(A) of the 1997 NIRC, a VAT invoice is required for sales of goods or properties, while a VAT official receipt pertains to leases of goods or properties and sales of services; the two are not interchangeable.

• Procedural Impropriety: The Court noted that although the petition was denominated as a Petition for Review on Certiorari under Rule 45, Kepco's assignment of errors impugned the CTA En Banc for grave abuse of discretion amounting to lack or excess of jurisdiction — grounds proper to a petition for certiorari under Rule 65, which is an original action dwelling on jurisdictional errors. A Rule 45 petition, by contrast, is a mode of appeal centering on review of the merits involving purely questions of law. Because Kepco failed to follow the correct procedure, the petition could be denied outright on this ground alone. The Court nevertheless proceeded to address the merits.

• Validity of Invoicing Requirements: The issue of whether "zero-rated" must be imprinted on invoices and official receipts was settled in Panasonic Communications Imaging Corporation of the Philippines vs. Commissioner of Internal Revenue and restated in J.R.A. Philippines, Inc. vs. Commissioner. In Panasonic, the Court held that Section 4.108-1 of RR No. 7-95 proceeds from the rule-making authority granted to the Secretary of Finance under Section 245 of the 1977 NIRC for the efficient enforcement of the tax code. The requirement is reasonable and in accord with efficient collection of VAT: the appearance of the word "zero-rated" on invoices prevents buyers from falsely claiming input VAT from purchases when no VAT was actually paid, and helps segregate sales subject to VAT from zero-rated sales. The regulation neither expanded nor supplanted the tax code but merely supplemented it. This was later confirmed when the provisions of the regulation were integrated into RA No. 9337, amending Section 113 of the 1997 NIRC to expressly require that "zero-rated sale" be "written or printed prominently on the invoice or receipt." Because Kepco failed to indicate in its VAT invoices and receipts that the transactions were zero-rated, it failed to comply with the correct substantiation requirement.

• TIN-VAT Printing Requirement: Section 4.108-1 of RR No. 7-95 expressly provides that only VAT-registered persons are required to print their TIN followed by the word "VAT" in their invoices or receipts, and such shall be considered a "VAT Invoice," with all purchases covered by invoices other than a "VAT Invoice" not giving rise to any input tax. The Court agreed with the CTA that to be considered a "VAT invoice," the TIN-VAT must be printed and not merely stamped. Purchases supported by invoices or official receipts where TIN-VAT is not printed shall not give rise to any input VAT. Kepco's claim that the regulation does not require TIN-VAT imprinting was thus unfounded.

• Distinction Between Invoices and Receipts: Under Section 113(A) of the 1997 NIRC, a VAT invoice is necessary for every sale, barter, or exchange of goods or properties, while a VAT official receipt properly pertains to every lease of goods or properties and every sale, barter, or exchange of services. In Commissioner of Internal Revenue vs. Manila Mining Corporation, the Court distinguished an invoice as a written account of goods sold or services rendered indicating prices charged, from a receipt as a written acknowledgment of payment. The VAT invoice is the seller's best proof of the sale, while the VAT receipt is the buyer's best evidence of payment. Taken collectively, they substantiate both the transaction and the input VAT payment. The two should not be confused as referring to the same thing, and the law does not intend them to be used alternatively. Although the CTA is not strictly governed by technical rules of evidence, the invoicing and substantiation requirements must nevertheless be followed because they are the only way to determine the veracity of the claims. The CTA En Banc's expertise in tax matters was accorded due deference, and absent any abuse or reckless exercise of authority, its decision was upheld.

• Tax Refunds as Tax Exemptions — Tax refunds are in the nature of tax exemptions representing a loss of revenue to the government. They must not rest on vague, uncertain, or indefinite inference but should be granted only by a clear and unequivocal provision of law on the basis of language too plain to be mistaken. Such exemptions must be strictly construed against the taxpayer, as taxes are the lifeblood of the government. The Court applied this doctrine to deny Kepco's refund claim for portions of input VAT that were not properly substantiated.

• Validity of Administrative Regulations Supplementing the Tax Code — Administrative rules and regulations issued pursuant to the rule-making authority of the Secretary of Finance may prescribe reasonable requirements that supplement — without expanding or supplanting — the provisions of the tax code. Section 4.108-1 of RR No. 7-95, requiring the imprinting of "zero-rated" on invoices covering zero-rated sales and the printing of "TIN-VAT" on invoices and receipts, was held to be a valid supplement to Sections 113 and 237 of the 1997 NIRC. The validity of the regulation was further confirmed when its provisions were later integrated into RA No. 9337, the amendatory law.

• Distinction Between VAT Invoice and VAT Official Receipt — A VAT invoice is required for every sale, barter, or exchange of goods or properties, while a VAT official receipt is required for every lease of goods or properties and every sale, barter, or exchange of services. An invoice is a written account of goods sold or services rendered indicating prices charged; a receipt is a written acknowledgment of payment. The two are not interchangeable and must not be confused as referring to one and the same thing. The Court applied this distinction to reject Kepco's argument that official receipts could substantiate input VAT on purchases of goods and invoices could substantiate input VAT on purchases of services.

• "Section 4.108-1 of RR 7-95 proceeds from the rule-making authority granted to the Secretary of Finance under Section 245 of the 1977 NIRC (Presidential Decree 1158) for the efficient enforcement of the tax code and of course its amendments. The requirement is reasonable and is in accord with the efficient collection of VAT from the covered sales of goods and services." — This passage, quoted from Panasonic, articulates the ratio decidendi for upholding the validity of the "zero-rated" imprinting requirement as a reasonable administrative regulation.

• "The appearance of the word 'zero-rated' on the face of invoices covering zero-rated sales prevents buyers from falsely claiming input VAT from their purchases when no VAT was actually paid. If, absent such word, a successful claim for input VAT is made, the government would be refunding money it did not collect." — This passage explains the practical rationale for the "zero-rated" imprinting requirement and is frequently cited in subsequent VAT refund jurisprudence.

• "Tax refunds are in the nature of tax exemptions which represent a loss of revenue to the government. These exemptions, therefore, must not rest on vague, uncertain or indefinite inference, but should be granted only by a clear and unequivocal provision of law on the basis of language too plain to be mistaken." — This is the canonical formulation of the strict construction doctrine applied to tax refund claims, central to the Court's disposition.

• "Hence, VAT invoice and VAT receipt should not be confused as referring to one and the same thing. Certainly, neither does the law intend the two to be used alternatively." — This passage establishes the mandatory distinction between VAT invoices and VAT official receipts, rejecting the argument that they are interchangeable for substantiation purposes.

• Panasonic Communications Imaging Corporation of the Philippines vs. Commissioner of Internal Revenue, G.R. No. 178090, February 8, 2010, 612 SCRA 28 — Controlling precedent. The Court relied on Panasonic as the settled authority holding that Section 4.108-1 of RR No. 7-95 validly requires the imprinting of "zero-rated" on invoices covering zero-rated sales, and that such requirement is a reasonable administrative regulation that supplements the tax code.

• J.R.A. Philippines, Inc. vs. Commissioner of Internal Revenue, G.R. No. 177127, October 11, 2010 — Followed. The Court cited this case as restating the Panasonic ruling on the "zero-rated" imprinting requirement.

• Atlas Consolidated Mining & Development Corporation vs. Commissioner of Internal Revenue, 376 Phil. 495 (1999) — Distinguished. Kepco cited Atlas to argue that non-compliance with invoicing requirements should result only in penalties, not denial of refund. The Court found no categorical ruling in Atlas supporting that proposition; the case merely recited the penalty provision and did not state that a claimant should be refunded despite non-compliance.

• Commissioner of Internal Revenue vs. Manila Mining Corporation, 505 Phil. 650 (2005) — Followed. The Court relied on Manila Mining to distinguish a VAT invoice (proof of transaction) from a VAT receipt (proof of payment) and to hold that the two are not interchangeable.

• Silkair (Singapore) Pte. Ltd. vs. Commissioner of Internal Revenue, G.R. No. 184398, February 25, 2010 — Followed. Cited for the doctrine that tax refunds are in the nature of tax exemptions strictly construed against the taxpayer.

• KEPCO Philippines Corporation vs. Commissioner of Internal Revenue, G.R. No. 179356, December 14, 2009, 608 SCRA 207 — Followed. Cited for the proposition that the CTA's expertise in tax matters should be accorded due deference absent abuse or reckless exercise of authority.

• Section 113, 1997 NIRC, as amended by RA No. 9337 — Prescribes the invoicing and accounting requirements for VAT-registered persons, including the requirement that "zero-rated sale" be written or printed prominently on the invoice or receipt for zero-rated transactions, and that a VAT invoice be issued for sales of goods while a VAT official receipt be issued for sales of services. The Court applied this provision (as later amended) to confirm the validity of the "zero-rated" imprinting requirement and the distinction between invoices and receipts.

• Section 237, 1997 NIRC — Requires all persons subject to internal revenue tax to issue duly registered receipts or sales or commercial invoices showing the date, quantity, unit cost, and description of merchandise or nature of service. The Court referenced this provision in analyzing whether the invoicing requirements were properly supplemented by RR No. 7-95.

• Section 4.108-1, Revenue Regulations No. 7-95 — Requires VAT-registered persons to print "TIN-VAT" on invoices or receipts (considered a "VAT Invoice"), to imprint the word "zero-rated" on invoices covering zero-rated sales, and provides that purchases covered by invoices other than a "VAT Invoice" shall not give rise to any input tax. The Court upheld this regulation as a valid exercise of the Secretary of Finance's rule-making authority, supplementing rather than expanding the tax code.

• Section 264 (formerly Section 263), 1997 NIRC — Provides penalties for failure or refusal to issue receipts or sales or commercial invoices. The Court held that this provision was not intended to excuse compliance with the substantive invoicing requirement needed to justify a claim for refund on input VAT payments.

• Section 13, Republic Act No. 6395 — Exempts the National Power Corporation from taxes, providing the statutory basis for Kepco's zero-rated sales of electricity to NPC.

Antonio T. Carpio (Chairperson), Antonio Eduardo B. Nachura, Diosdado M. Peralta, and Roberto A. Abad concurred with the majority opinion. No separate concurring opinions were written.