Philex Mining Corporation v. Commissioner of Internal Revenue

Summary

Philex Mining Corporation entered into a management agreement with Baguio Gold Mining Company to operate the Sto. Niño mine, making substantial advances that it later sought to deduct as bad debts when the mine failed. The Supreme Court unanimously held that the 'Power of Attorney' agreement actually created a partnership or joint venture, not a creditor-debtor relationship. Key factors included equal contributions by both parties, 50-50 profit sharing, no unconditional repayment obligation, and proportionate asset distribution upon termination. The Court applied Civil Code partnership provisions, particularly Article 1769(4) establishing that receipt of profit shares creates prima facie evidence of partnership. Since the advances were partnership contributions rather than loans, they could not qualify for bad debt deduction under tax law. The decision affirmed the P62,811,161.39 deficiency income tax assessment with 20% delinquency interest.