Local Government Code of 1991
Section 130. Fundamental Principles. - The following fundamental principles shall govern the exercise of the taxing and other revenue-raising powers of local government units:
(a) Taxation shall be uniform in each local government unit;
(b) Taxes, fees, charges and other impositions shall:
(1) be equitable and based as far as practicable on the taxpayer's ability to pay;
(2) be levied and collected only for public purposes;
(3) not be unjust, excessive, oppressive, or confiscatory;
(4) not be contrary to law, public policy, national economic policy, or in the restraint of trade;
(c) The collection of local taxes, fees, charges and other impositions shall in no case be let to any private person;
(d) The revenue collected pursuant to the provisions of this Code shall inure solely to the benefit of, and be subject to the disposition by, the local government unit levying the tax, fee, charge or other imposition unless otherwise specifically provided herein; and,
(e) Each local government unit shall, as far as practicable, evolve a progressive system of taxation.