National Internal Revenue Code (NIRC)
Section 219. Nature and Extent of Tax Lien. - If any person, corporation, partnership, joint-account (cuentas en participacion), association or insurance company liable to pay an internal revenue tax, neglects or refuses to pay the same after demand, the amount shall be a lien in favor of the Government of the Philippines from the time when the assessment was made by the Commissioner until paid, with interests, penalties, and costs that may accrue in addition thereto upon all property and rights to property belonging to the taxpayer: Provided, That this lien shall not be valid against any mortgagee purchaser or judgment creditor until notice of such lien shall be filed by the Commissioner in the office of the Register of Deeds of the province or city where the property of the taxpayer is situated or located.