Observance of due process of law
Equal protection of the law
Uniformity rule in taxation
Progressive system of taxation
Non-imprisonment for non-payment of debt or poll tax
Non-impairment of obligation and contract
Free worship rule
Exemption of religious, charitable or educational entities, non-profit cemeteries, churches and mosques, lands, building, and improvements from property tax
Non-appropriation of public funds or property for the benefit of any church, sect, or system of religion
Exemption from taxes of the revenues and assets of non-profit, non-stock educational institutions including grants, endowments, donations, or contributions for educational purposes
Concurrence of a majority of all members of congress for the passage of a law granting tax exemption
Non-diversification of tax collections
Non-delegation of the power of taxation
Non-impairment of the jurisdiction of the supreme court to review tax cases
Appropriations, revenue, or tariff bills shall originate exclusively in the House of Representatives, but the senate may propose or concur with amendments
Each local government unit shall exercise the power to create its own sources of revenue and shall have a just share in the national taxes