Life-blood doctrine

It is said that taxes are what we pay for civilization society. Without taxes, the government would be paralyzed for lack of the motive power to activate and operate it. Hence, despite the natural reluctance to surrender part of one's hard earned income to the taxing authorities, every person who is able to must contribute his share in the running of the government. The government for its part, is expected to respond in the form of tangible and intangible benefits intended to improve the lives of the people and enhance their moral and material values. This symbiotic relationship is the rationale of taxation and should dispel the erroneous notion that it is an arbitrary method of exaction by those in the seat of power.

But even as we concede the inevitability and indispensability of taxation, it is a requirement in all democratic regimes that it be exercised reasonably and in accordance with the prescribed procedure. If it is not, then the taxpayer has a right to complain and the courts will then come to his succor. For all the awesome power of the tax collector, he may still be stopped in his tracks if the taxpayer can demonstrate, as it has here, that the law has not been observed. (G.R. No. L‐28896, February 17, 1988)