Oña vs. Commissioner of Internal Revenue

Heirs who, after judicial approval of a project of partition, permit their respective definite shares of the inheritance and the incomes derived therefrom to be utilized as a common fund under single management for business transactions with the intent of deriving profits to be shared proportionally, form an unregistered partnership taxable as a corporation pursuant to Sections 24 and 84(b) of the National Internal Revenue Code, irrespective of the absence of a formal partnership agreement or the fact that their association originated from co-ownership by inheritance.

The dispute originated from the estate of Julia Buñales, who died in 1944, leaving her husband and five children as heirs. Although a project of partition was judicially approved in 1949, the heirs did not physically divide the estate. Instead, the properties remained under the management of the surviving spouse, Lorenzo T. Oña, who engaged in business activities using the properties and their incomes as a common fund, acquiring new assets and generating profits that were reinvested rather than distributed to the individual heirs. This arrangement persisted for years, leading to a significant increase in the value of the common fund, until the Bureau of Internal Revenue assessed deficiency corporate income taxes for the years 1955 and 1956 based on the theory that the heirs had formed an unregistered partnership subject to corporate taxation.

• Julia Buñales died on March 23, 1944, leaving as heirs her surviving spouse Lorenzo T. Oña and five children: Rodolfo, Mariano, Luz, Virginia, and Lorenzo Jr.
• In 1948, Civil Case No. 4519 was instituted in the Court of First Instance of Manila for the settlement of her estate, and Lorenzo T. Oña was appointed administrator.
• On May 16, 1949, the court approved a project of partition (Exhibit K) showing the heirs' undivided one-half interest in ten parcels of land with a total assessed value of P87,860.00, six houses with a total assessed value of P17,590.00, and War Damage Commission proceeds of approximately P50,000.00 used for rehabilitation of common properties.
• Despite the judicial approval of the partition, the heirs never actually physically divided the properties; Lorenzo T. Oña remained in charge as administrator and guardian of the minor heirs.
• Lorenzo T. Oña used the inherited properties and their incomes as a common fund to engage in business, including leasing, selling subdivided lots, and investing in corporate securities and additional real properties.
• The value of the common properties and investments increased steadily from P105,450.00 in 1949 to P480,005.20 in 1956, as recorded in year-end balances for Investment, Land, and Building accounts maintained by Lorenzo T. Oña.
• The heirs derived income from installment sales of lots, stock sales, dividends, rentals, and interests, which were recorded in books of account showing each heir's corresponding share in the net income.
• Although the heirs filed individual income tax returns for their respective shares of the net income as reported by Lorenzo T. Oña, they never actually received their shares in cash; the income was continuously left in the hands of Lorenzo T. Oña and reinvested as part of the common fund.
• The Commissioner of Internal Revenue assessed corporate income taxes for 1955 (P8,092.00) and 1956 (P13,899.00) against the petitioners as an unregistered partnership, plus surcharges and interest, pursuant to Section 24 in relation to Section 84(b) of the Tax Code.
• The petitioners protested the assessment, but the Commissioner denied the protest, leading to the filing of the case in the Court of Tax Appeals.

• The petitioners argued that they were merely co-owners of the inherited properties and the profits derived therefrom, not an unregistered partnership, and thus should not be subject to corporate income tax.
• They contended that if an unregistered partnership existed, it should be limited only to the extent that they invested the profits from the properties owned in common and loans secured using the inherited properties as collateral, excluding the inherited properties themselves from the partnership assets.
• They asserted that assuming they constituted an unregistered partnership, the amounts they had already paid as individual income taxes on their respective shares of the profits for 1955 and 1956 should be deducted from the deficiency corporate tax assessment to avoid double taxation.
• They relied on Article 1769(3) of the Civil Code, which states that the sharing of gross returns does not of itself establish a partnership, to support their position that no partnership was formed.

• The Commissioner of Internal Revenue argued that the petitioners formed an unregistered partnership subject to corporate income tax from the moment they allowed their respective shares of the inheritance and the incomes derived therefrom to be used by Lorenzo T. Oña as a common fund for profit-making ventures.
• The respondent maintained that co-ownership ceases and an unregistered partnership arises for tax purposes when heirs, after partition, use their definite shares as part of a common fund under single management with intent to derive profit proportionally.
• The respondent argued that the definition of "corporation" under Section 84(b) of the Tax Code includes unregistered partnerships regardless of how they are created, and such entities are distinct from the individual partners for tax purposes.
• The respondent contended that the individual income taxes paid by the petitioners on their shares of partnership profits could not be credited against the corporate tax liability of the partnership; instead, the proper remedy for any overpayment of individual taxes was a separate claim for refund subject to prescription.

• Procedural Issues: Whether the Supreme Court may properly consider and grant the petitioners' claim for credit of individual income tax payments against the corporate tax deficiency of the unregistered partnership when such individual tax liabilities were not in issue in the proceedings before the Court of Tax Appeals.
• Substantive Issues: Whether the petitioners, as heirs who continued to hold inherited properties under common management after judicial approval of partition, are merely co-owners or have formed an unregistered partnership subject to corporate income tax under Sections 24 and 84(b) of the National Internal Revenue Code.
• Substantive Issues: Assuming an unregistered partnership exists, whether the partnership is limited to business ventures using profits and loans (excluding inherited properties) or includes all properties used in the common fund.
• Substantive Issues: Whether individual income taxes paid by petitioners on their shares of partnership profits may be deducted from the deficiency corporate income tax assessed against the unregistered partnership.

• Procedural: The Court declined to pass upon the individual income tax liabilities of the petitioners or order the crediting of such payments against the corporate tax liability because the individual tax liabilities were not in issue in the present proceeding. The Court ruled that the proper remedy for the petitioners was to file a separate action for refund of overpaid individual income taxes, which remedy was subject to the statutory bar of prescription, and that relaxation of tax laws should not be allowed in favor of persons not above suspicion regarding their tax obligations.
• Substantive: The petitioners formed an unregistered partnership taxable as a corporation. Co-ownership of inherited properties is automatically converted into an unregistered partnership for tax purposes the moment the heirs, after judicial approval of partition, allow their respective definite shares and the incomes derived therefrom to be used as a common fund under single management with the intent of deriving profit to be shared proportionally. The Court held that from the moment petitioners allowed Lorenzo T. Oña to use their shares and income as a common fund for business transactions, they effectively contributed to a partnership, falling under Sections 24 and 84(b) of the Tax Code.
• Substantive: The unregistered partnership included all income derived from the inherited properties used in the common business. The income from inherited properties ceased to be individual income of the heirs when their respective shares were used as part of the common assets for profit-making; consequently, all income of the partnership, including that derived from the inherited properties, was subject to corporate income tax.
• Substantive: The amounts paid by petitioners as individual income taxes on their shares of partnership profits cannot be deducted from the deficiency corporate tax assessed against the partnership. The partnership is a separate and distinct taxpayer from the individual partners. Double taxation was not present because the taxes were imposed on two different taxpayers: the partnership (corporate tax) and the individual partners (individual tax on their distributive shares). The Court ruled that to allow the deduction would improperly disregard the prescription period for refund claims.

• Conversion of Co-ownership to Unregistered Partnership for Tax Purposes — Co-ownership of inherited properties is automatically converted into an unregistered partnership the moment the common properties and/or incomes derived therefrom are used as a common fund with intent to produce profits for the heirs in proportion to their respective shares as determined in a project of partition, whether judicially approved or extrajudicially settled. This doctrine distinguishes between passive co-ownership and active business ventures using inherited assets.
• Tax Concept of Corporation vs. Civil Code Concept of Partnership — For purposes of the tax on corporations under the National Internal Revenue Code, the term "corporation" includes partnerships no matter how created or organized, joint accounts, and associations, excluding only duly registered general copartnerships. This tax law definition is distinct from the technical definition of partnership under the Civil Code, and an unregistered partnership may be treated as a corporation for tax purposes even if it lacks legal personality or does not meet Civil Code requirements for partnership formation.
• Distinct Taxpayer Doctrine — A partnership treated as a corporation for tax purposes is a taxpayer separate and distinct from its individual partners; therefore, individual income taxes paid by partners on their shares of partnership profits cannot be credited against the corporate income tax liability of the partnership, and partners must pursue separate refund actions for overpayments, subject to prescription.

• "From the moment petitioners allowed not only the incomes from their respective shares of the inheritance but even the inherited properties themselves to be used by Lorenzo T. Oña as a common fund in undertaking several transactions or in business, with the intention of deriving profit to be shared by them proportionally, such act was tantamount to actually contributing such incomes to a common fund and, in effect, they thereby formed an unregistered partnership within the purview of the above-mentioned provisions of the Tax Code."
• "For tax purposes, the co-ownership of inherited properties is automatically converted into an unregistered partnership the moment the said common properties and/or the incomes derived therefrom are used as a common fund with intent to produce profits for the heirs in proportion to their respective shares in the inheritance as determined in a project partition either duly executed in an extrajudicial settlement or approved by the court in the corresponding testate or intestate proceeding."
• "The term 'corporation' includes partnerships, no matter how created or organized... This qualifying expression clearly indicates that a joint venture need not be undertaken in any of the standard forms, or in conformity with the usual requirements of the law on partnerships, in order that one could be deemed constituted for purposes of the tax on corporation."
• "The partnership profits distributable to the partners (petitioners herein) should be reduced by the amounts of income tax assessed against the partnership. Consequently, each of the petitioners in his individual capacity overpaid his income tax for the years in question, but the income tax due from the partnership has been correctly assessed."

• Evangelista v. Collector, 102 Phil. 140 — Cited to distinguish the facts (where the common fund was not inherited) but clarified to reject the argument that inheritance precludes formation of unregistered partnership; the Court used this case to explain that the tax law definition of partnership prevails over the Civil Code definition and that co-ownership can convert to partnership when used as a common fund for profit.
• Collector v. Batangas Transportation Co., G.R. No. L-9692, Jan. 6, 1958 — Followed for the ruling that the 25% surcharge on the deficiency tax should be eliminated.
• Reyes v. Commissioner of Internal Revenue, G.R. Nos. L-24020-21, July 29, 1968 — Cited as reaffirming the view that unregistered partnerships are subject to corporate tax and rejecting theories of mere co-ownership in similar circumstances.

• Section 24, National Internal Revenue Code — Levies tax on corporations and specifically exempts "duly registered general partnerships" from such tax; cited to show that unregistered partnerships are not exempt and are thus subject to corporate income tax, distinguishing between registered and unregistered partnerships as kinds of taxpayers.
• Section 84(b), National Internal Revenue Code — Defines the term "corporation" to include partnerships, no matter how created or organized, joint accounts, associations, and other unincorporated organizations, with the exception of duly registered general copartnerships; cited as the statutory basis for treating unregistered partnerships as corporations for tax purposes.
• Article 1769(3), Civil Code — Provides that sharing of gross returns does not of itself establish a partnership; petitioners' reliance thereon was rejected because the Court held that the tax law definition of partnership under the NIRC, not the Civil Code, governs for tax purposes.
• Section 51(e)(2), Internal Revenue Code, as amended by Republic Act No. 2343 — Provisions regarding interest on deficiency taxes; cited as the basis for the 1% monthly interest imposed by the Court of Tax Appeals.