Allied Banking Corporation v. Commissioner of Internal Revenue

Summary

Allied Banking Corporation received tax deficiency assessments for Documentary Stamp Tax and Gross Receipts Tax. After protesting the preliminary assessment, BIR issued a formal demand letter stating it was the 'final decision' and taxpayer could 'appeal' within 30 days. Instead of filing administrative protest, Allied Banking directly petitioned the CTA. Both CTA First Division and En Banc dismissed for lack of jurisdiction, requiring administrative protest first. The Supreme Court reversed, ruling the CIR was estopped from claiming the petition was premature because the formal letter's language ('final decision' and 'appeal') reasonably led the taxpayer to believe it was the final appealable decision. The Court emphasized that tax authorities must communicate clearly and unequivocally whether an action constitutes a final determination. However, the petition was ultimately dismissed as the taxpayer had submitted a compromise settlement offer during the proceedings.