Commissioner of Internal Revenue vs. Maxicare Healthcare Corporation

A deficiency tax assessment issued before the lapse of the 60-day period for the taxpayer to submit supporting documents for a protest constituting a request for reinvestigation is void for violating the taxpayer's right to due process under Section 228 of the National Internal Revenue Code and its implementing regulations.

Maxicare Healthcare Corporation, a health maintenance organization, was subjected to a tax investigation for calendar year 2012. The Bureau of Internal Revenue issued a Preliminary Assessment Notice (PAN) for deficiency VAT, which Maxicare protested. Subsequently, a Formal Letter of Demand and Final Assessment Notice (FLD/FAN) was issued. Maxicare filed a protest against the FLD/FAN explicitly requesting a reinvestigation and stating it would submit supporting documents within 60 days. Thirty days after this protest was filed, the Commissioner issued the Final Decision on Disputed Assessment (FDDA), affirming the deficiency assessment.

• Assessment Process: On August 28, 2014, the CIR issued a Letter of Authority authorizing the examination of Maxicare's books for 2012. A Preliminary Assessment Notice (PAN) for deficiency VAT was issued on August 25, 2015, and received by Maxicare on August 27, 2015. Maxicare protested the PAN on September 14, 2015.
• Issuance of FLD/FAN and Protest: On October 15, 2015, Maxicare received the FLD/FAN dated October 8, 2015, assessing deficiency VAT. On November 9, 2015, Maxicare filed a protest letter explicitly requesting a "reinvestigation" and stating it would "submit within sixty (60) days from the date of filing hereof the pertinent supporting documents."
• Premature Issuance of FDDA: On December 9, 2015, or only 30 days after Maxicare filed its protest, the CIR issued the FDDA, reiterating the deficiency assessment. Maxicare received the FDDA on December 21, 2015.
• CTA Proceedings: Maxicare appealed to the CTA. The CTA First Division ruled that the CIR violated Section 228 of the NIRC and RR No. 12-99 by not allowing the full 60-day period for submission of documents, rendering the assessment void. The CTA En Banc affirmed this ruling.

• Substantial Justice Over Procedure: The CIR argued that the issuance of the FDDA before the 60-day lapse was a procedural defect that should not overshadow the taxpayer's substantive liability for deficiency taxes. Substantial justice should prevail over strict adherence to procedural rules.
• Due Process Satisfied: The CIR maintained that Maxicare's right to due process was satisfied because it was given an opportunity to be heard through its protest letter, which the CIR considered before issuing the FDDA. The essence of due process in administrative proceedings is the opportunity to be heard, which was afforded.

• Strict Compliance with Procedural Rules: Maxicare countered that the CIR's failure to observe the mandatory 60-day period prescribed by Section 228 of the NIRC and its implementing regulations constituted a violation of its statutory right to due process, rendering the assessment void.
• Denial of Right to Present Evidence: Maxicare argued that the premature issuance of the FDDA effectively deprived it of the right to submit relevant supporting documents, which is an integral part of the right to a reinvestigation and a genuine opportunity to be heard.

• Due Process in Tax Assessment: Whether the CIR violated Maxicare's right to due process by issuing the FDDA before the expiration of the 60-day period for submitting supporting documents for its protest, thereby rendering the assessment void.
• Reckoning of the 60-Day Period: Whether the 60-day period for submitting relevant supporting documents under Section 228 of the NIRC and RR No. 12-99 is reckoned from the filing of the protest to the Preliminary Assessment Notice (PAN) or to the Final Letter of Demand/Final Assessment Notice (FLD/FAN).

• Due Process Violated: The CIR's issuance of the FDDA only 30 days after Maxicare filed its protest, which explicitly requested reinvestigation and promised submission of documents, violated the clear mandate of Section 228 of the NIRC and RR No. 12-99. This procedural lapse deprived Maxicare of a real opportunity to be heard and submit evidence, rendering the assessment null and void. The right to due process in tax assessments requires strict adherence to prescribed procedures.
• 60-Day Period Reckoned from Protest to FLD/FAN: The 60-day period for submitting relevant supporting documents applies to a protest constituting a request for reinvestigation filed against the FLD/FAN, not to a response to the PAN. A plain reading of Section 228 of the NIRC, as categorically implemented by RR No. 12-99, establishes that the administrative protest triggering the 60-day period is the one filed against the FLD/FAN.

• Due Process Requirement in Tax Assessments — The Bureau of Internal Revenue must strictly comply with the procedural requirements of Section 228 of the NIRC and its implementing regulations (RR No. 12-99, as amended) when issuing deficiency tax assessments. These procedures are not mere technicalities but are essential safeguards of the taxpayer's constitutional right to due process. Failure to observe these requirements, such as by not affording the taxpayer the full period to submit evidence in support of a protest for reinvestigation, renders the assessment void.

• "Compliance with strict procedural requirements must be followed in the collection of taxes... If [taxation] is not [exercised reasonably and in accordance with the prescribed procedure], then the taxpayer has a right to complain and the courts will then come to his succor." — This passage, cited from CIR v. Avon, underscores the judiciary's role in checking the tax collector's power and the necessity of procedural regularity.
• "The 60-day period for the submission of all relevant supporting documents shall not apply to requests for reconsideration." — This excerpt from RR No. 12-99 highlights the distinction between requests for reconsideration and reinvestigation, with the latter carrying the specific procedural safeguard at issue in this case.

• Commissioner of Internal Revenue v. Avon Products Manufacturing, Inc., 841 Phil. 114 (2018) — This case was extensively cited as controlling precedent. It established that the CIR's disregard of due process standards and its own procedural rules in tax assessments renders the deficiency tax assessments null and void. The Court reiterated the need for strict adherence to procedural requirements as a check on the government's power of taxation.
• Allied Banking v. Commissioner of Internal Revenue, 625 Phil. 530 (2010) — Cited to support the interpretation that the formal letter of demand and assessment notice (FLD/FAN), not the PAN, is the assessment that must be administratively protested within 30 days.
• Commissioner of Internal Revenue v. Liquigaz Phils. Corp., 784 Phil. 874 (2016) — Cited to reinforce that the written notice requirement for both the FLO and FAN is in observance of due process.

• Section 228, National Internal Revenue Code of 1997 (as amended) — This provision governs the protesting of tax assessments. It was applied to establish that a taxpayer may file an administrative protest (request for reconsideration or reinvestigation) within 30 days from receipt of an assessment (interpreted as the FLD/FAN), and that within 60 days from filing the protest, all relevant supporting documents must be submitted, otherwise the assessment becomes final.
• Revenue Regulations No. 12-99 (as amended by RR No. 18-2013) — This implementing regulation was applied to clarify the procedures under Section 228. Specifically, Section 3.1.4 was used to define a "request for reinvestigation" and to confirm that the 60-day period for submitting supporting documents runs from the filing of the protest against the FLD/FAN.

• Justice Caguioa (Chairperson)
• Justice Inting
• Justice Gaerlan
• Justice Dimaampao