In this state, the assessment of property is made by the assessor by calling on the taxpayer and obtaining from him a list of his taxable property and its value. Section 6685, Revised Statutes. When the list is received by the assessor, the value given to the .property by him at that time, is its assessed value. The taxpayer has a right to so consider it, for it is provided by 6719, of the statute, that “every person who thinks himself aggrieved by the assessment of his property may appeal,” etc. It is the assessment made under section 6685 that a party may appeal from, if he feels aggrieved. If he does not feel aggrieved, he has a right to rely upon that assessment remaining at that value until he is notified of a contemplated change by some tribunal authorized to make it. By force of sections 6671, 6672, 6673, and 6674, a county board of equalization is constituted. This board has power to hear appeals from assess*442ments made by the assessors, as is provided for in 6719. This assessment, so made by the assessor, is a judicial act; (St. Louis Mutual Life Insurance Company v. Charles, 47 Mo. 462), and upon appeal there is to be a trial, and it is to be judicially determined. Section 6675,
It is true there is no notice to the taxpayer provided for in section 6673, in case his assessment of personalty is raised, though it is required in case the valuation oi real estate is raised. But we think, from the sections cited, there can be no doubt that the taxpayer is entitled to consider that the judicial ascertainment of the value of his property by the assessor will remain as the assessment unless he appeals, or is notified to the contrary.
“The courts have been particularly careful to see that revisory tax tribunals did not change assessments to the prejudice of taxpayers who, under the circumstances, had no reason to look for, or anticipate any such change. If the taxpayer himself does not appeal, he has the right to suppose that the assessment against him will be allowed to stand as made.” Cooley on Taxation, 268.
This view of the matter is strengthened by reference to section 6714 of the statute, where it is provided that when an assessment of property is made in the absence of the head of the family, a duplicate list of such assessment shall be left with some member of the family over fifteen years of age. This requirement is, doubtless, that the taxpayer may know what assessment has been made against him, that he may take steps to protect himself by appeal, if wronged. The statute itself, then, does contemplate -that a party shall have notice of his assessment, in the first instance, so that he may seek his remedy, if aggrieved by an overvaluation by the assessor. There would seem to be no reason why he should not likewise have notice of an .overvaluation by the board of equalization.
But aside from any consideration of the statute, notice is an absolute pre-requisite to the right or power to raise the assessment.
“We should say that notice of proceedings in such *443cases, and an opportunity for a hearing of some description were matters of constitutional right. It has been customary to provide for them as a part of what is ‘due process of law ’ for these cases; * * * it has often been very pointedly and emphatically declared that it is-contrary to the first principles of justice that one should be condemned unheard, and it has also been justly observed of taxing officers, that it would be a dangerous-precedent to hold that any absolute power resides in them to tax as they may choose, without giving any notice to the owner.” Cooley on Taxation, 266.
In the process of taxation the taxpayer, when it begins to affect him individually, has a right to take part and be heard, and any attempts to levy the burden in disregard of these principles are inoperative. Butler v. Supervisors, 26 Mich. 22,
In the case of Sioux Ry. Co. v. Washington County (8 Neb. 3043), where a board of equalization had increased an assessment, there being no statute requiring a notice in this respect, at least none is mentioned or referred to, nevertheless, the court says: “ Will it be supposed that the board can indefinitely increase the assessed valuation of the property of the taxpayer, at any time, without notice to him ? Certainly it cannot"; and however full and complete, might be the jurisdiction of the board over the subject-matter, yet the party interested has, according to the plainest principles of justice, a clear right to a hearing and. to a day in court, and any other view stands opposed to reason, justice and sound policy, and to all those general principles which, in all cases, allow a party to be heard before his rights of property can be affected by any tribunal. This is the universal law of the land, and must be strictly complied with in the issuance and service of summons, in order to enable the court to render a valid judgment. Surely, then, the doubling of the assessed valuation of a person’s property does as vitally affect his rights and interests as the rendition of a judgment against him. Hence it is clear that the board can have no jurisdiction, *444without notice to the person whose rights and interests are to be affected by its decision. This is the only safe rule; any other might lead to great injustice.”
This principle is fundamental. It is the law of the land, and cannot be dispensed with under our enlightened system. Not to defend and uphold it, invites the star chamber. The notice should be, as in other cases where no special time is specified, a reasonable time.
“ Notice of some kind is the vital breath that animates judicial jurisdiction over the person. It is the primary element of the application of the judicatory power. It is the essence of a cause. Without it there cannot be parties, and without parties there may be the form of a sentence, but no judgment obligating the person.”
Our supreme court has frequently held a notice necessary when not called for by the statute ; holding it to be a cardinal principle that whenever a party’s rights are to be affected by a summary proceeding, that party should be notified, that he may protect himself. George v. Middough, 62 Mo. 549 ; Laughlin v. Fairbanks, 8 Mo. 367, 371.
In tax proceedings it is not essential that this notice shall be given before the assessment is made, but one may, and generally is, in such matters, given afterwards. The notice, too, need not be personal, but is often by a general law. And so It might be said that the respondent in this case had notice by force of the statutes providing for a board of equalization and prescribing its time of meeting, and authorizing such board to raise the value of personal property. These provisions are due notice to the taxpayer as to when and where his appeal, if he has taken any, may be heard, but it is not notice to him that his assessment, once fairly and legally made, or, I may say, adjudicated by the assessor, for he acts in a judicial capacity, is to be set aside and raised.
It is conceded by all that the board has the power, of course, to raise the valuation, but that power must be exercised in conformity with the fundamental law. That *445part of the judgment in reference to the county court extending the taxes is not authorized by the proceedings and is, besides, unnecessary. So the conclusion of the judgment as to the board of equalization standing enjoined is an awkward way of stating what was meant by the judgment, but it is sufficiently direct to be understood and effect the object sought by plaintiff without violating any right of defendant.
The judgment (with the exception of that part directing the county court) is affirmed.
All concur.