CONSTITUTIONAL LIMITATIONS
1. DUE PROCESS OF LAW
There must be a valid law
Tax measure should not be unconscionable and unjust as to amount to confiscation of
property.
Tax statute must not be arbitrary as to find no support in the Constitution.
Sec. 1 Art. III 1987 - No person shall be deprived of life, liberty, or property without due process of
law, nor shall any person be denied the equal protection of the laws.
Tan v. Del Rosario, supra – (SNITS);
FACTS: Petitioners challenge the constitutionality of RA 7496 or the simplified income taxation
scheme (SNIT) under Arts (26) and (28) and III (1). The SNIT contained changes in the tax schedules
and different treatment in the professionals which petitioners assail as unconstitutional for being
isolative of the equal protection clause in the constitution. Petitioner contends that the tile of House
Bill No. 34314 progenitor of RA 7496, is a misnomer or, at least, deficient for being merely entitled,
“Simplified Net Income Taxation Scheme for the Self-Employed and Professional Engaged in the
Practice of their Profession”.
HELD: Tax law is constitutional. Uniformity of taxation, like the hindered concept of equal protection,
merely require that all subjects or objects of taxation similarly situated are to be treated alike both
privileges and liabilities. Uniformity, does not offend classification as long as it rest on substantial
distinctions, it is germane to the purpose of the law. It is not limited to existing only and must apply
equally to all members of the same class. The due process clause may correctly be invoked only when
there is a clear contravention of inherent or constitutional limitations in the exercise of the tax power.
No such transgression is evident to us.