Commissioner of Internal Revenue vs. Kudos Metal Corporation

Waivers of the statute of limitations on tax assessments must strictly comply with the procedural requirements under RMO 20-90 and RDAO 05-01; non-compliance renders the waiver invalid and does not toll the prescriptive period. Furthermore, the doctrine of estoppel cannot be invoked to validate a waiver that is defective or prohibited by law, nor to excuse the BIR's failure to follow its own mandatory procedures.

The case involves the assessment of internal revenue taxes for taxable year 1998. The BIR initiated audit proceedings after the taxpayer failed to comply with notices to present records. To extend the prescriptive period for assessment, the BIR obtained waivers from the taxpayer's accountant, which were later challenged as defective.

• April 15, 1999: Respondent filed its Annual Income Tax Return for taxable year 1998
• September 7, 1999: BIR issued Letter of Authority for investigation
• December 10, 2001: First Waiver of the Defense of Prescription executed by respondent's accountant
• January 22, 2002: First waiver notarized; subsequently received by BIR and accepted by Assistant Commissioner Percival T. Salazar
• February 18, 2003: Second Waiver executed (notarized February 19, 2003; received by BIR February 28, 2003)
• August 25, 2003: BIR issued Preliminary Assessment Notice
• September 26, 2003: Formal Letter of Demand with Assessment Notices issued; received by respondent November 12, 2003
• December 3, 2003: Respondent filed protest
• June 22, 2004: BIR rendered final decision demanding payment of P25,624,048.76
• August 27, 2004: Respondent filed Petition for Review with the CTA
• October 4, 2005: CTA Second Division cancelled the assessment notices for having been issued beyond the prescriptive period
• April 18, 2006: CTA Second Division denied motion for reconsideration
• March 30, 2007: CTA En Banc affirmed the cancellation
• May 18, 2007: CTA En Banc denied motion for reconsideration
• Present: Petition for Review on Certiorari filed with the SC

• Respondent Kudos Metal Corporation filed its Annual Income Tax Return for taxable year 1998 on April 15, 1999
• Pursuant to a Letter of Authority dated September 7, 1999, the BIR served three Notices of Presentation of Records upon respondent, which respondent failed to comply with
• The BIR issued a Subpoena Duces Tecum dated September 21, 2000, acknowledged by respondent's President on October 20, 2000, followed by an audit
• Nelia Pasco, respondent's accountant, executed a First Waiver of the Defense of Prescription on December 10, 2001, notarized on January 22, 2002, received by the BIR on January 31 and February 4, 2002, and accepted by Assistant Commissioner Percival T. Salazar
• Pasco executed a Second Waiver on February 18, 2003, notarized on February 19, 2003, received by the BIR on February 28, 2003, and accepted by Assistant Commissioner Salazar
• The BIR issued a Preliminary Assessment Notice on August 25, 2003, followed by a Formal Letter of Demand with Assessment Notices dated September 26, 2003, received by respondent on November 12, 2003
• Respondent challenged the assessments by filing a protest on December 3, 2003, and supplemental arguments on February 2, 2004
• On June 22, 2004, the BIR rendered a final decision demanding payment of deficiency income tax, VAT, withholding taxes, and penalties totaling P25,624,048.76

• The government's right to assess taxes is not barred by prescription because the two waivers executed by respondent's accountant effectively tolled or extended the assessment period
• Respondent is estopped from denying the validity of the waivers because it acquiesced to the audit during the period specified in the waivers, leading the government to believe the delay would not be used against it
• Respondent cannot repudiate the validity of the waivers after benefiting from the additional time to submit documents

• Prescription had set in due to the invalidity of the waivers executed by Pasco, who acted without written authority from respondent in violation of RDAO No. 05-01
• The principle of estoppel applies only when the law is doubtful; here, the law and regulations governing waivers are clear and mandatory
• The defects in the waivers are fatal and cannot be cured by equitable considerations

• Procedural Issues: N/A
• Substantive Issues:
  • Whether the government's right to assess unpaid taxes prescribed due to the invalidity of the waivers
  • Whether the doctrine of estoppel applies to prevent respondent from invoking prescription

• Procedural: N/A
• Substantive:
• The waivers were invalid and did not extend the prescriptive period. The SC identified three fatal defects:
  • Pasco executed the waivers without a notarized written authority from respondent to sign on its behalf, violating RDAO 05-01 which requires such delegation to be in writing and duly notarized
  • The waivers failed to indicate the date of acceptance by the BIR
  • The original copies failed to indicate receipt by respondent of its file copy, which is necessary to show the taxpayer was notified of the BIR's acceptance and the perfection of the agreement
  • The second waiver was void. Under Section 222(b) of the NIRC, a subsequent agreement to extend must be executed before the expiration of the previously agreed period. The first waiver expired on December 31, 2002; the second waiver was executed on February 18, 2003, making it ineffective to toll the prescriptive period
  • Estoppel does not apply. The doctrine cannot validate an act prohibited by law or against public policy. The BIR cannot invoke estoppel to cover its failure to comply with RMO 20-90 and RDAO 05-01, which are mandatory procedures the BIR itself issued. Unlike in Suyoc Consolidated Mining, where the taxpayer made repeated requests causing the government to delay collection, here there was no showing respondent requested postponement of the assessment, and the assessments were issued beyond the statutory period. The BIR, having caused the defects, must bear the consequence

• Strict Construction of Exceptions to Prescription — Exceptions to the law on prescription must be strictly construed because the prescriptive period benefits both the government and the taxpayer. A waiver of the statute of limitations, being a derogation of the taxpayer's right to security against prolonged and unscrupulous investigations, must be carefully and strictly construed.
• Requisites for Valid Waiver under RMO 20-90 and RDAO 05-01 — For a waiver to effectively extend the prescriptive period under Section 222(b) of the NIRC, it must comply strictly with the following:
  • Be in the proper form with the expiry date ("but not after ______") filled up
  • Be signed by the taxpayer or duly authorized representative; for corporations, by a responsible official or a representative with notarized written authority
  • Be duly notarized
  • Be signed by the CIR or authorized revenue official indicating acceptance, with the date of acceptance indicated
  • Both the date of execution by the taxpayer and date of acceptance by the BIR must be before the expiration of the prescriptive period or the lapse of the period agreed upon in a prior waiver
  • Be executed in three copies, with the fact of receipt by the taxpayer of the file copy indicated in the original
  • Estoppel Cannot Validate Illegal Acts — The doctrine of estoppel, being predicated on equity, cannot give validity to an act prohibited by law or one that is against public policy. It cannot defeat the administration of the law or be used to secure an undue advantage.
  • Best Evidence Obtainable — Under Section 6(b) of the NIRC, the CIR has the power to make assessments based on the best evidence obtainable when a taxpayer fails to submit required documents. The taxpayer's delay in furnishing documents cannot excuse the BIR from issuing assessments within the prescriptive period.

• "The prescriptive period on when to assess taxes benefits both the government and the taxpayer. Exceptions extending the period to assess must, therefore, be strictly construed."
• "A waiver of the statute of limitations, being a derogation of the taxpayer's right to security against prolonged and unscrupulous investigations, must be carefully and strictly construed."
• "The doctrine of estoppel cannot give validity to an act that is prohibited by law or one that is against public policy."
• "The BIR cannot hide behind the doctrine of estoppel to cover its failure to comply with RMO 20-90 and RDAO 05-01, which the BIR itself issued."
• "Having caused the defects in the waivers, the BIR must bear the consequence. It cannot shift the blame to the taxpayer."

• Philippine Journalist, Inc. v. Commissioner of Internal Revenue — Cited for the principle that waivers of prescription must be strictly construed as they derogate taxpayer rights; also for the procedural requirements of waivers under RMO 20-90.
• Collector of Internal Revenue v. Suyoc Consolidated Mining Company — Distinguished; estoppel was applied there because the taxpayer made repeated requests causing the government to delay collection, and the assessment itself was made within the prescribed period. In the present case, the assessment was issued beyond the period, and no requests to postpone were made by the taxpayer.
• Republic of the Philippines v. Ablaza — Cited for the rule that exceptions to prescription must be strictly construed.
• La Naval Drug Corporation v. Court of Appeals — Cited for the definition of estoppel as originating in equity.
• Ouano v. Court of Appeals — Cited for the principle that estoppel cannot validate acts against public policy.
• C & S Fishfarm Corporation v. Court of Appeals — Cited for the limitation that estoppel should not be permitted to defeat the administration of the law.

• Section 203, National Internal Revenue Code of 1997 — Mandates that internal revenue taxes be assessed within three years from the last day prescribed for filing the return or the actual date of filing, whichever is later.
• Section 222(b), National Internal Revenue Code of 1997 — Allows extension of the assessment period by written agreement between the CIR and taxpayer executed before expiration; subsequent agreements must be made before expiration of the previously agreed period.
• Section 6(b), National Internal Revenue Code of 1997 — Grants the CIR power to assess taxes based on the best evidence obtainable when required returns are not forthcoming or are false/incomplete.
• Revenue Memorandum Order (RMO) No. 20-90 — Prescribes the form and procedure for executing waivers, including requirements for signatures, notarization, dates of execution and acceptance, and distribution of copies.
• Revenue Delegation Authority Order (RDAO) No. 05-01 — Designates revenue officials authorized to sign waivers and requires that delegation of authority to a representative be in writing and duly notarized.