Kepco Philippines Corporation vs. Commissioner of Internal Revenue

Failure to imprint the word "zero-rated" on VAT invoices or official receipts covering effectively zero-rated sales is fatal to a claim for refund or tax credit of unapplied input VAT. Substantiation through compliant invoicing is mandatory because it distinguishes taxable, zero-rated, and exempt sales and prevents refund of tax never collected.

KEPCO Philippines Corporation is a domestic VAT-registered corporation engaged as an independent power producer selling electricity to the National Power Corporation (NPC). NPC is a non-profit corporation declared exempt from all forms of taxes under Section 13 of Republic Act No. 6395, as amended, such that services rendered to it by VAT-registered persons are effectively subject to zero percent VAT under Section 108(B)(3) of the 1997 National Internal Revenue Code. KEPCO obtained an approved Application/Certificate for Zero Rate from the Commissioner of Internal Revenue for sales of services from January 19, 1999 to December 31, 1999.

KEPCO Philippines Corporation is a domestic corporation duly organized under Philippine laws, a VAT-registered taxpayer engaged in the production and sale of electricity as an independent power producer to the National Power Corporation. It applied for and obtained effective zero-rating of its sales of electricity to NPC, with an approved Application/Certificate for Zero Rate issued by the Commissioner on January 19, 1999, valid for sales from January 19, 1999 to December 31, 1999 and bearing the note that zero-rated sales must be indicated in the invoice/receipt.

For taxable year 1999, KEPCO alleged it incurred input VAT of ₱10,527,202.54 on domestic purchases of goods and services used in production and sale of electricity to NPC. In its 1999 quarterly VAT returns filed with the Bureau of Internal Revenue on March 30, 2000, it declared carried-over and current-quarter input taxes culminating in ₱111,091,411.68 carried over to the next quarter, with the four quarters' current input taxes totaling ₱10,527,202.54 (₱4,804,974.70 for the first quarter, ₱1,461,960.38 for the second, ₱2,563,288.00 for the third, and ₱1,696,979.46 for the fourth).

Thereafter, on January 29, 2001, KEPCO filed an administrative claim for refund of its reported unutilized input VAT for the four quarters of 1999, followed on April 24, 2001 by a petition for review before the CTA. Before the tax courts, KEPCO presented VAT official receipts for 1999 (marked as Exhibits S to S-11) to substantiate effectively zero-rated sales in the total amount of ₱860,340,488.96, later pressing a refundable amount of ₱10,514,023.92 on the ground that it sold electricity exclusively to NPC, a tax-exempt entity. The CTA found, however, that the wordings "zero-rated sales" were not imprinted on those receipts, in violation of Section 4.108-1 of Revenue Regulations No. 7-95 and the condition in its zero-rate certificate.

• Imprinting Requirement Beyond Statute: Petitioner argued that Sections 113 in relation to 237 of the 1997 Tax Code do not mandate imprinting the words "zero-rated" on receipts for zero-rated transactions, and that Section 4.108-1 of R.R. No. 7-95 cannot expand the letter and spirit of the law it implements, citing the settled rule that administrative rules cannot enlarge statutory requirements.
• No Basis for Automatic Denial: Petitioner maintained that no law, regulation, or jurisprudence, including the Atlas case, sanctions outright denial of a refund for invoicing non-compliance, and that while strict compliance may be required, automatic denial is too harsh and contrary to solutio indebiti under Article 2154 of the New Civil Code.
• Sufficient Proof of Entitlement: Petitioner argued that it sufficiently proved entitlement to refund or tax credit certificate in the amount of ₱10,514,023.92 because it sold electricity exclusively to NPC, a tax-exempt entity, making its sales effectively zero-rated.

• Failure to Substantiate Zero-Rated Sales: Respondent countered that petitioner is not entitled to refund because it failed to substantiate the ₱10,514,023.92 representing zero-rated transactions for failure to submit VAT official receipts and invoices imprinted with the wording "zero-rated" in violation of Section 4.108-1 of R.R. No. 7-95.

• Imprinting Requirement and Fatal Non-Compliance: Whether petitioner's failure to imprint the words "zero-rated" on its VAT official receipts issued to NPC justifies outright denial of its claim for refund of unutilized input tax credits.
• Entitlement to Refund: Whether petitioner sufficiently proved entitlement to refund or issuance of tax credit certificate in the amount of ₱10,514,023.92.

• Imprinting Requirement and Fatal Non-Compliance: Yes. Failure to imprint "zero-rated" violates the mandatory invoicing requirements under Sections 113 and 237 of the 1997 NIRC as implemented by Section 4.108-1 of R.R. No. 7-95, precluding zero-rating and refund.
• Entitlement to Refund: No. For failure to substantiate effectively zero-rated sales for 1999 with compliant receipts, the claimed input VAT cannot be refunded, tax refunds being strictly construed against the taxpayer.

• Imprinting Requirement and Fatal Non-Compliance: Services rendered by a VAT-registered person to NPC, an entity exempt under its special charter, are effectively subject to zero percent under Section 108(B)(3) of the 1997 NIRC in relation to Section 13 of R.A. No. 6395, as amended. Effective zero-rating, however, requires compliance with invoicing requirements under Sections 113 and 237 as implemented by Section 4.108-1 of R.R. No. 7-95, which mandates imprinting "zero-rated" on invoices covering zero-rated sales, a condition likewise stated in petitioner's approved zero-rate certificate. The requirement is mandatory and reasonable because it distinguishes 10% VAT sales from 0% and exempt sales, enables enforcement of provisions on zero-rated sales, exempt transactions, tax credits, and refunds, segregates taxable components, and prevents buyers from falsely claiming input VAT where no VAT was paid. Far from expanding the statute, the regulation is a precautionary measure for effective implementation, its validity confirmed by incorporation in Section 113(B)(2)(c) of R.A. No. 9337 under legislative approval by reenactment. Reliance on Intel Technology Philippines, Inc. vs. Commissioner of Internal Revenue is misplaced because that case involved absence of BIR authority to print, not a statutory or regulatory requisite, whereas absence of "zero-rated" directly violates Section 4.108-1. Section 264 on failure to issue or print receipts does not excuse substantive invoicing compliance needed to justify input VAT refund.
• Entitlement to Refund: The wordings "zero-rated sales" were not imprinted on the VAT official receipts presented for taxable year 1999, so the claimed zero-rated sales of ₱860,340,488.96 and attributable input VAT were not substantiated. Denial is not a harsh penalty but the only way to determine veracity, consistent with Panasonic Communications Imaging Corporation of the Philippines vs. Commissioner of Internal Revenue, J.R.A. Philippines, Inc. vs. Commissioner of Internal Revenue, Hitachi Global Storage Technologies Philippines Corp. vs. Commissioner of Internal Revenue, and KEPCO Philippines Corporation vs. Commissioner of Internal Revenue, which consistently treat omission of "zero-rated" as fatal. Actions for tax refund are claims for exemption construed strictissimi juris against the taxpayer, with evidence strictissimi scrutinized and duly proven.

• Effectively zero-rated sales to tax-exempt entities — Services performed in the Philippines by VAT-registered persons for persons or entities whose exemption under special laws effectively subjects the supply to zero percent, under Section 108(B)(3) of the 1997 NIRC, are subject to 0% VAT. Applied here, sales of electricity by VAT-registered KEPCO to NPC, exempt under Section 13 of its Revised Charter, were effectively zero-rated in principle, subject to compliance with invoicing requisites.
• Mandatory invoicing requirement for zero-rating — All VAT-registered persons must issue duly registered receipts or invoices showing, among others, the word "zero-rated" imprinted on invoices covering zero-rated sales under Section 4.108-1 of R.R. No. 7-95 implementing Sections 113 and 237 of the NIRC. Applied here, omission of that imprint prevented qualification for zero-rating and substantiation of the refund claim.
• Legislative approval of administrative interpretation by reenactment — Validity of an administrative interpretation is confirmed when the legislature reenacts the statute incorporating that interpretation. Applied here, incorporation of the imprinting rule in Section 113(B)(2)(c) of R.A. No. 9337 confirmed the validity of Section 4.108-1 of R.R. No. 7-95 even prior to amendment.
• Strict construction of tax refunds — Actions for tax refund are in the nature of claims for exemption; the law is construed strictissimi juris against the taxpayer and evidence of entitlement is strictissimi scrutinized and must be duly proven. Applied here, KEPCO's non-compliant receipts could not sustain the burden to prove refundability.

• "If, absent such word, a successful claim for input VAT is made, the government would be refunding money it did not collect." — Explains why imprinting "zero-rated" is necessary to prevent false input VAT claims and justifies denial where proper invoices are not submitted.
• "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." — Upholds the regulatory basis for the imprinting requirement as reasonable and in accord with efficient VAT collection.
• "Well-settled in this jurisdiction is the fact that actions for tax refund, as in this case, are in the nature of a claim for exemption and the law is construed in strictissimi juris against the taxpayer." — States the interpretive rule requiring strict scrutiny of evidence for VAT refund claims.

• Panasonic Communications Imaging Corporation of the Philippines vs. Commissioner of Internal Revenue, G.R. No. 178090, February 8, 2010 — Followed as controlling authority that the imprinting requirement is reasonable, prevents false input VAT claims, and that failure to submit proper invoices defeats refund.
• Intel Technology Philippines, Inc. vs. Commissioner of Internal Revenue, G.R. No. 166732, April 27, 2007 — Distinguished because denial there rested on absence of BIR authority to print, which was not legally required to appear on invoices, unlike the "zero-rated" imprint expressly required by regulation.
• J.R.A. Philippines, Inc. vs. Commissioner of Internal Revenue, G.R. No. 177127, October 11, 2010; Hitachi Global Storage Technologies Philippines Corp. vs. Commissioner of Internal Revenue, G.R. No. 174212, October 20, 2010; KEPCO Philippines Corporation vs. Commissioner of Internal Revenue, G.R. No. 181858, November 24, 2010 — Cited as string of recent decisions consistently holding failure to print "zero-rated" fatal to refund or credit of input VAT on zero-rated sales.
• Atlas Consolidated Mining and Development Corporation vs. Commissioner of Internal Revenue, 376 Phil. 495 (1999); G.R. No. 159490, February 18, 2008 — Cited by petitioner as not sanctioning automatic denial; cited by the Court for the strictissimi juris rule on tax exemptions and refund evidence.
• Tropitek International, Inc. vs. Commissioner of Internal Revenue, CTA Case Nos. 6422 & 6499, July 13, 2005; KEPCO Philippines Corporation vs. Commissioner of Internal Revenue, CTA E.B. Case No. 107, June 29, 2007 — Cited by CTA En Banc for the mandatory nature of imprinting and its rationale in distinguishing taxable, zero-rated, and exempt sales.

• Section 108(B)(3), 1997 National Internal Revenue Code — Subjects to zero percent VAT services by VAT-registered persons to persons exempt under special laws or international agreements; applied to treat KEPCO's services to NPC as effectively zero-rated if invoicing requisites are met.
• Section 113, 1997 National Internal Revenue Code, in relation to Section 237 — Imposes invoicing and accounting requirements for VAT-registered persons, including statements of VAT registration and tax-inclusive amounts; implemented to require "zero-rated" imprint and basis for denying unsubstantiated claims.
• Section 4.108-1, Revenue Regulations No. 7-95 — Requires duly registered receipts/invoices to show seller and buyer details and the word "zero-rated" imprinted on invoices covering zero-rated sales; violation found fatal to KEPCO's refund.
• Section 13, Republic Act No. 6395 (Revised NPC Charter), as amended by P.D. Nos. 380 and 938 — Declares NPC non-profit and exempt from all taxes; basis for effective zero-rating of services rendered to it.
• Section 113(B)(2)(c), Republic Act No. 9337 — Provides that if sale is subject to zero percent VAT, the term "zero-rated sale" shall be written or printed prominently on invoice or receipt; invoked as legislative approval confirming prior regulatory imprinting requirement.
• Section 112(A), 1997 National Internal Revenue Code — Grants refund of unutilized input taxes attributable to zero-rated or effectively zero-rated sales; procedural basis for KEPCO's CTA petition.
• Section 264, 1997 National Internal Revenue Code — Penalizes failure or refusal to issue receipts or violations related to printing; held not to excuse compliance with substantive invoicing requirement for input VAT refund.

Associate Justice Antonio T. Carpio (Chairperson), Associate Justice Antonio Eduardo B. Nachura, Associate Justice Diosdado M. Peralta, and Associate Justice Roberto A. Abad concurred. No separate concurring opinions adding significant reasoning were recorded.