Estate of the Late Juliana Diez Vda. De Gabriel vs. Commissioner of Internal Revenue

Death of the principal automatically extinguishes the agency relationship under Article 1919(3) of the Civil Code, and a tax assessment served on the former agent after the principal’s death is void and cannot bind the estate. Due process requires that an assessment be served on and received by the taxpayer or its duly appointed representative; service on a stranger to the estate does not start the period to protest and does not render the assessment final.

Juliana Diez Vda. De Gabriel managed her business affairs through Philippine Trust Company (Philtrust) during her lifetime. She died on April 3, 1979. Philtrust continued to handle matters immediately after her death, filing her 1978 income tax return on April 5, 1979, without indicating the taxpayer’s death. The Bureau of Internal Revenue subsequently conducted an administrative investigation and discovered a deficiency income tax for 1977.

• The Decedent’s Affairs and Death: Juliana Diez Vda. De Gabriel entrusted the management of her business affairs to Philippine Trust Company (Philtrust). She died on April 3, 1979.
• Post-Death Tax Return: On April 5, 1979, two days after the decedent’s death, Philtrust, through its Trust Officer Atty. Antonio M. Nuyles, filed the decedent’s Income Tax Return for 1978. The return did not state that the taxpayer had died, and the address used was Philtrust’s office in Sta. Cruz, Manila.
• Probate Administration: Philtrust filed a verified petition for appointment as Special Administrator in Sp. Proc. No. R-82-6994. The probate court instead appointed one of the heirs, later replaced by two successive individuals—Mr. Antonio Lantin and Atty. Vicente Onosa—and eventually appointed Antonio Ambrosio as Commissioner and Auditor Tax Consultant of the Estate. Philtrust was never appointed administrator.
• Deficiency Assessment and Notice: The BIR’s administrative investigation uncovered a deficiency income tax for 1977 in the amount of P318,233.93. On November 18, 1982, the BIR sent by registered mail a demand letter and Assessment Notice No. NARD-78-82-00501 addressed to the decedent “c/o Philippine Trust Company, Sta. Cruz, Manila,” the address appearing in the 1978 return. Philtrust did not respond, and the BIR was not informed of the decedent’s death.
• Collection Efforts: On June 18, 1984, the Commissioner issued warrants of distraint and levy to enforce collection, served upon the heir Francisco Gabriel. On November 22, 1984, the BIR filed a “Motion for Allowance of Claim and for an Order of Payment of Taxes” in the probate court. The Estate, through Mr. Ambrosio, filed a letter of protest on January 7, 1985 and later a formal opposition, arguing lack of proper service and prescription. The probate court denied the claim on November 19, 1985, ruling that the assessment was not served on the proper party.
• Court of Appeals Decision: The CA reversed, holding that because Philtrust filed the 1978 return after the taxpayer’s death, it constituted itself as administrator for tax purposes; that the assessment became final for lack of protest within 30 days; and that the Estate was liable on equitable grounds due to the administrator’s failure to inform the BIR of the death.

• Invalid Service of Assessment: The Estate argued that Philtrust had no legal personality to represent the decedent after death. The relationship of agency ended upon death, and service of the deficiency assessment on Philtrust did not bind the Estate. Consequently, there was no proper notice of assessment.
• Non-Finality of Assessment: Petitioner maintained that because the assessment was never validly served on the taxpayer or the administrator, it never became final, executory, and incontestable.
• Prescription: Petitioner contended that the BIR’s failure to file its claim within the period prescribed by the Rules of Court and Section 318 of the 1977 NIRC—five years from the filing of the return—forever barred the claim against the Estate.

• De Facto Administrator: The Commissioner argued that Philtrust, having filed the decedent’s income tax return after her death, constituted itself as the de facto administrator of the estate for purposes of that return, making service on Philtrust proper service on the Estate.
• Duty to Notify Death: Respondent asserted that under Section 104 of the 1977 NIRC, Philtrust had a legal obligation to inform the BIR of the decedent’s death, and the Estate should not profit from Philtrust’s omission.
• Finality of Assessment: Respondent contended that Philtrust’s failure to protest the assessment within the 30-day period under Section 319-A of the NIRC rendered the assessment final, executory, and incontestable, authorizing collection proceedings. Relying on Basilan Estate Inc. v. Commissioner, the Commissioner argued that an assessment is deemed made upon mailing, without need for actual receipt.

• Validity of Service: Whether service of the deficiency income tax assessment on Philippine Trust Company, after the decedent’s death, constituted valid service binding on the Estate.
• Finality of Assessment: Whether the deficiency tax assessment became final, executory, and incontestable due to the absence of a protest within the thirty-day statutory period.
• Prescription of Claim: Whether the BIR’s claim against the Estate, filed in the probate court on November 22, 1984, was barred by the five-year prescriptive period under Section 318 of the 1977 NIRC.

• Validity of Service: Service on Philtrust was invalid. The relationship between the decedent and Philtrust was one of agency, automatically extinguished by the principal’s death under Article 1919(3) of the Civil Code. Philtrust’s act of filing the 1978 income tax return two days after death did not revive the agency. Philtrust was never appointed administrator; it was a complete stranger to the estate. An assessment must be served on and received by the taxpayer or, when the estate is under administration, on the duly appointed administrator. Since no valid notice was served on the Estate, the assessment could produce no legal effect.
• Finality of Assessment: The assessment never became final. Because no valid assessment was ever served, the thirty-day period to protest under Section 319-A of the 1977 NIRC never began to run. An invalidly served assessment cannot attain finality by mere lapse of time.
• Prescription of Claim: The BIR’s claim was barred by prescription. Section 318 of the 1977 NIRC requires assessment within five years after the return is filed; without a valid assessment, no court proceeding for collection may be initiated. The BIR’s claim filed in 1984 was beyond the five-year period. Section 104 of the NIRC, governing notice of death for estate tax purposes, was inapplicable to a deficiency income tax assessment. The consequences of any failure to notify the BIR of the death under the Tax Code are limited to penal sanctions, not the indefinite tolling of prescription or a waiver of the notice requirement.

• Effect of Death on Agency — Under Article 1919(3) of the Civil Code, the death of either principal or agent automatically terminates the agency relationship. Acts performed by the former agent after the principal’s death have no binding effect on the estate of the deceased. Here, Philtrust’s filing of the 1978 return after death could not create or revive agency; its receipt of the assessment notice was a legal nullity as against the Estate.
• Requisites for Valid Tax Assessment Notice — An assessment is deemed made when the notice is released, mailed, or sent to the taxpayer. However, due process demands that the assessment actually be received by the taxpayer or its authorized representative. In the case of an estate under judicial administration, notice must be directed to the duly appointed administrator, not to heirs or third parties without authority. An assessment served on a disinterested party is void and does not trigger the period to protest.
• Finality of Assessments — Under Section 319-A of the 1977 NIRC, failure to protest within thirty days makes the assessment final. This provision presupposes a valid service of assessment; an assessment never properly served cannot become final and incontestable. The running of the protest period requires a legally effective notice.

• “Under Article 1919 (3) of the Civil Code, death of the agent or principal automatically terminates the agency. In this instance, the death of the decedent on April 3, 1979 automatically severed the legal relationship between her and Philtrust, and such could not be revived by the mere fact that Philtrust continued to act as her agent when, on April 5, 1979, it filed her Income Tax Return for the year 1978.”
• “An assessment contains not only a computation of tax liabilities, but also a demand for payment within a prescribed period. It also signals the time when penalties and interests begin to accrue against the taxpayer. To enable the taxpayer to determine his remedies thereon, due process requires that it must be served on and received by the taxpayer.” (quoting Commissioner v. Pascor Realty)
• “It must be noted, however, that the foregoing rule requires that the notice be sent to the taxpayer, and not merely to a disinterested party. Although there is no specific requirement that the taxpayer should receive the notice within the said period, due process requires at the very least that such notice actually be received.”

• Commissioner of Internal Revenue v. Pascor Realty and Development Corporation, 368 Phil. 714 (1999) — Followed for the rule that due process requires an assessment to be served on and received by the taxpayer; used to underscore that actual receipt is indispensable to the validity of the assessment.
• Republic v. De la Rama, 124 Phil. 1493 (1966) — Followed to establish that, when the estate is under judicial administration, notice of assessment must be sent to the administrator; service on unauthorized heirs is ineffective and cannot bind the estate.
• Collector of Internal Revenue v. Bautista, G.R. Nos. L-12250 & L-12259, 27 May 1959, cited in Basilan Estate Inc. v. Commissioner, 128 Phil. 19 (1967) — Distinguished; while the case stands for the proposition that an assessment is deemed made upon mailing, it was clarified that the notice must still be sent to the taxpayer, not a stranger.

• Article 1919(3), Civil Code — Extinguishment of agency by death of the principal. Served as the foundation for ruling that Philtrust’s agency terminated upon the decedent’s death and that its subsequent acts could not bind the Estate.
• Section 318, National Internal Revenue Code of 1977 — Five-year period of limitation for assessment and collection of internal revenue taxes. Applied to bar the BIR’s claim for having been initiated beyond the prescriptive period without a valid assessment.
• Section 319-A, National Internal Revenue Code of 1977 — Thirty-day period to protest an assessment, after which it becomes final. Held inapplicable because no valid assessment was ever served; the period never commenced.
• Section 104, National Internal Revenue Code of 1977 — Requirement to give written notice of death to the Commissioner in estate tax cases. Held irrelevant to a deficiency income tax assessment and inapplicable to Philtrust, which was never executor or administrator.

Davide, Jr., C.J. (Chairman), Panganiban, and Carpio, JJ. Azcuna, J., on official leave.