Section 5
SEC. 5. The first paragraph of item (1), paragraph (1) of Section 29 of the same Code, as amended, is hereby further amended to read as follows: "(1) Personal Exemptions allowable to individuals. - "(1) Basic personal exemption. - For the purpose of determining the tax provided in Section 21(a) of this Title, there shall be allowed a basic personal exemption as follows: "For single individual or married individual judicially decreed as legally separated with no qualified dependents P 9,000 "For head of a family P 12,000 "For each married individual P 18,000 "Provided, That, in case one of the spouses is deriving taxable income, only said spouse shall be allowed to avail of the aforesaid basic personal exemption for married individual."