Here are selected September 2011 rulings of the Supreme Court of the Philippines on tax law:
National Internal Revenue Code; Civil Code; waiver of statute of limitations; estoppel. Taxpayer assails the validity of the waivers of the statute of limitations on the ground that the waivers were merely attested to by the coordinator for the Commissioner of Internal Revenue (CIR) and he failed to indicate the acceptance or agreement of the CIR, as required under Section 223 of the National Internal Revenue Code. Taxpayer argues that the principle of estoppel cannot be used against it because its payment of the other tax assessment does not signify a clear intention on its part to give up its right to question the validity of the waivers. The Court ruled that estoppel applied to the taxpayer. Under Article 1431 of the Civil Code, the doctrine of estoppel is anchored on the rule that “an admission or representation is rendered conclusive upon the person making it, and cannot be denied or disproved as against the person relying thereon.” Thus, a party is precluded from denying his own acts, admissions or representation to the prejudice of the other party in order to prevent fraud and falsehood. In this case, taxpayer, through its partial payment of the revised assessments issued within the extended period as provided for in the questioned waivers, impliedly admitted the validity of those waivers. Had taxpayer believed that the waivers were invalid and that the assessments were issued beyond the prescriptive period, then it should not have paid the reduced amount of taxes in the revised assessment. Its subsequent action effectively believes its insistence that its waivers are invalid. The records show that taxpayer immediately made payment on the uncontested taxes immediately upon receipt of the revised assessment. It is thus estopped from questioning the validity of the waivers. To hold otherwise and allow a party to gainsay its own act of deny rights which it had previously recognized would run counter to the principle of equity which the Court holds dear. Rizal Commercial Banking Corporation vs. Commissioner of Internal Revenue, G.R. No. 170257, September 7, 2011998.