National Internal Revenue Code (NIRC)
Section 258. Unlawful Pursuit of Business. - Any person who carries on any business for which an annual registration fee is imposed without paying the tax as required by law shall, upon conviction for each act or omission, be punished by a fine of not less than Five thousand pesos (P5,000) but not more than Twenty thousand pesos (P20,000) and suffer imprisonment of not less than six (6) months but not more than two (2) years: Provided, That in the case of a person engaged in the business of distilling, rectifying, repacking, compounding or manufacturing any article subject to excise tax, he shall, upon conviction for each act or omission, be punished by a fine of not less than Thirty thousand pesos (P30,000) but not more than Fifty thousand pesos (P50,000) and suffer imprisonment of not less than two (2) years but not more than four (4) years.