Tbe complaint was demurred to in this case on tbe following grounds:
1st. That tbe court has no jurisdiction of tbe subject matter of tbe action.
2d. That tbe plaintiffs have not legal capacity to sue.
3d. That there is a defect of parties defendant in this,' to wit; *54That the county of Dodge and the county treasurer of said county are necessary, parties defendant to the action.
4th. That the complaint does not state facts sufficient to constitute a cause of action.
The second ground of demurrer is clearly untenable, as a reference to the following authorities shows: The Central Bank of Wisconsin v. Knowlton, 12 Wis., 624; The Connecticut Mutual Life Ins. Co. v. Cross, 18 id., 109; and Phœnix BanK v. Donnell, 40 N. Y., 410. And it is alleged that the plaintiff corporations are authorized to hold, possess and enjoy all real estate necessary for conducting their business of raising and smelting iron and other ores.
The third ground of demurrer we consider equally unsound. The action is brought to restrain the town authorities from collecting or enforcing the collection of the unpaid taxes assessed against the lands mentioned in the complaint. No relief is sought against the county or against the treasurer of the county, and they are not interested in the litigation in that sense which renders it necessary they shall be made parties. A complete determination of all the questions at issue can be had without joining the county or the county treasurer in the action, and no sufficient reason has been assigned for making either a party.
The first and fourth grounds of demurrer in the case before us resolve themselves in a measure into the same objection, and they will therefore be considered together. While the tax roll of the town of Hubbard for the year 1870, and warrant annexed, were in the hands of the treasurer of the town for the purpose of collecting the taxes for that year, this action was brought to enjoin the collection of certain taxes assessed against the plaintiff’s lands in that town and to have the taxes and assessments declared void. This relief is demanded for various reasons; And first it is said that the whole assessment and tax- roll based thereon, for the year 1870, were void, because made in the way specified, and after July 5th, 1870. In support of this specific objection; a number of things are stated in *55tbe complaint to show tbat tbe assessor and board of review proceeded in a very irregular and unusual manner in making and correcting tbe assessment roll. . "We shall not attempt to notice all these .alleged irregularities or rather illegalities in their proceedings. It is sufficient to say tbat according to tbe allegations of tbe complaint these taxing officers not only fell into great errors of judgment in respect to the duties which tbe law imposed upon them, but they were guilty of gross favoritism and fraud in fixing tbe valuation of tbe real estate in tbat town.
It is alleged tbat tbe valuation of tbe plaintiffs’ lands, and also of all tbe lands in tbe town, was fixed in tbe first place by tbe assessor, and placed on tbe assessment roll in an illegal manner, which is specified in tbe complaint, was arrived at upon an improper, unjust and illegal basis, and tbat this was knowingly, fraudulently and wilfully done by tbe assessor, with tbe intention and design of compelling tbe plaintiffs to pay more than their just proportion of tbe taxes for 1870, as tbe plaintiffs believe. Also, tbat this valuation and assessment was afterwards, and after July 5th, 1870, abandoned by tbe assessor without proof under oath, and was changed to tbat which now appears on tbe tax roll; tbat this change and abandonment were made with tbe knowledge of and by tbe advice of tbe other members of tbe board of review, who arbitrarily, and contrary to proof under oath, and upon an illegal basis, directed and ordered tbe assessor to raise tbe valuation of tbe plaintiffs’ lands to the figures which are now set over against tbe same on tbe tax roll; tbat this valuation is greatly above their true value ; tbat tbe assessment of tbe lands was not made to tbe owners, although tbe owners were then known; tbat tbe lands were not and are not entered upon tbe tax roll or upon tbe corrected and verified assessment roll, for 1870, in tbe name of or opposite tbe name of either tbe owner or occupants of said lands, although tbe names of both and all tbe .owners and occupants were known to tbe assessor and to each *56member of tbe board of review, when the assessment was made; that the valuation of plaintiffs’ lands is unjust and intentionally increased so as to be out of proportion to the value of the other property in said town, which is entered upon the tax roll; and that this over-valuation was made intentionally and fraudulently by the assessor and board of review, for the purpose and with the design of compelling the plaintiffs to pay more than their just proportion of the taxes for the year 1870.
In specifying some of the changes made in the assessment roll, by the board of review, of the valuation of plaintiff’s lands as made by the assessor, it is stated that the valuation of one eighty acre tract was increased from $2,400, to $64,000 ; another from $2,000, to $54,000; a hundred and sixty acre tract was increased from $4,800, to $23,525; an eighty acre from $80,000, to $115,000; another from $160,000, to $180,000; and another eighty from $2,400, to $10,000; while the valuation of other property as made by the assessor, was greatly reduced by the board of review — without the oath or sworn statement of any one — below its true value, specifying an eighty acre tract belonging to the Northwestern Iron Company, the valuation of which was reduced by the board, from $80,000, to $24,000, and that this was done fraudulently, and with intent to favor that company, and to relieve it from the payment of its full and fair proportion of the taxes for the year 1870, and to increase unfairly the taxes of the plaintiffs. These, in substance, are some of the matters stated in the complaint And they are abundantly sufficient to show beyond all question, if sustained by proof, that the assessment made and taxes levied upon the lands of the plaintiffs, are absolutely void, not only because the property was not assessed to the known owners and occupants, and therefore invalid under the decisions of State ex rel. Roe v. Williston, 20 Wis., 228; Crane v. The City of Janesville, id., 305; and Hamilton v. The City of Fond du Lac, 25 id., 490, but they are also illegal and void on account of the fraudulent discrimination made by the taxing officers in *57tbe valuation and listing of tbe lands. Lefferts v. The Board of Supervisors of Calumet Co., 21 Wis., 688. And, tbis being so, tbe question arises, will a court of equity interfere at tbis stage, while tbe warrant and tax roll are in tbe bands of tbe town treasurer, and restrain tbe collection of tbe taxes and set tbe assessments aside, or must tbe plaintiffs wait until tbe lands bave been sold by tbe county treasurer, and tax certificates issued against tbem? It is claimed on tbe part of tbe defendants that, in the most favorable view of tbe law for tbe plaintiffs, they must wait until tbe lands are sold, and that tbe action is prematurely brought
Tbe doctrine that a court of equity will interfere in order to cancel and annul tax certificates which bave been issued for a void tax, is well established in tbis state. Tbis .doctrine is founded upon tbe true principles of equity jurisprudence, and is generally referred to tbe jurisdiction of a court of chancery in actions quia timet. Even in New York, where tbe courts, upon grounds of public policy, bave always evinced tbe greatest reluctance to interfere to restrain tbe collection of a tax, it is conceded that “ when tbe tax is upon land, and tbe law allows it to be sold to collect tbe tax, and tbe conveyance to be executed by tbe proper officer would be conclusive evidence of title, and tbe tax was not void, on its face, a suit in tbe nature of a bill quia, timet will lie.” Denio, C. J. in The Susquehanna Bank v. Supervisors of Broom Co., 25 N. Y., 312-314. In this state, tbe jurisdiction of tbe court has been maintained on tbe precise ground indicated in tbe above extract by Chief Justice ¿estío, because tbe land was liable to be sold for tbe tax, and tbe deed under our law was made either conclusive or prima facie evi-' dence of tbe regularity of all tbe proceedings of the taxing officers. It is true that tbis jurisdiction has generally been invoked after tbe sale, and after tbe tax certificate issued. In these cases, relief has been granted, and tbe tax certificate has been canceled, unless tbe instrument was void on its face so as to constitute no cloud on tbe title.
*58' But in the pase of Hamilton v. The City of Fond du Lac, supra, the court interfered to cancel and set aside the tax certificate which had been issued against the plaintiff's lots for a special improvement, even before sale. In that case the law required that there should be an award of damages-sustained, and an assessment of benefits to lots in consequence of the improvements. The city was authorized to issue certificates for the benefits assessed, and, if the amount of the certificate was not paid to the holder previous to the levying of the general city taxes, it was specially assessed upon the lot benefited, and was collected as other taxes assessed upon the real estate of thé city. For irregularities in the assessment this special tax so levied against the plaintiff’s lots was declared void, and the assessment and certificate were held to be a cloud upon the title. And this was while the assessment roll with the usual warrant was in the hands of the city treasurer for the collection of the tax. The court restrained the collection of the tax, and ordered this certificate to be delivered up and canceled. The same objection was taken to the complaint in that case that is made the first ground of demurrer in the present one, viz: that the court had no jurisdiction of the subject of the action. But the objection was overruled, and the plaintiff was afforded the relief asked in the complaint.-
And there would really seem to be no substantial reason for holding that a court of equity should not interpose and declare an illegal tax assessed against real estate void until after sale. For, as already remarked, the ground upon which the court interferes is to afford preventive relief, and to quiet title by removing an instrument which throws a cloud upon it. Now, under our statute, all taxes assessed on any tract or parcel of land, and all costs, charges and interest thereon, are made a lien on such land until paid. Section 81, chap. 22, Laws 1859. The illegal levy and assessment are therefore^ under this law, as much a cloud upon the title before as after the sale of the» land. For the tax is expressly made an incumbrance upon the *59property from tbe time it is assessed against tbe land, and it would constitute a breach of a covenant against incumbrance? contained in a deed which was executed after such assessment. Peters v. Myers, 22 Wis., 602. The existence of these taxes assessed against the property most materially affects its value, as much as if the lands had. actually been sold to collect them. We, therefore, are unable to conceive any reason why a court of equity should decline to exert its jurisdiction to declare them void until the lands have been sold. They really, in their present form, constitute a cloud upon the title of the most serious character. The illegalities complained of do not appear upon the face of the proceedings, but must be shown dehors the record. The case seems to come fully within the principle of the decision in Hamilton v. The City of Fond du Lac, and is ruled by that adjudication. See also Drake v. Phillips, 40 Ill., 388; Scribner v. Allen, 12 Minnesota, 148; Palmer v. The Township of Napoleon, 16 Mich., 176, and Judd et al. v. The Town of Fox Lake et al, unreported.
It is insisted on the part of the defendants that the decision in Chicago and N. W. Railway Co. v. The Borough of Ft. Howard, 21 Wis., 44, shows that this action cannot be maintained. .That action was brought “ to restrain the officers of the borough of Et. Howard from levying upon and selling the personal property of the railroad company for the purpose of collecting a tax.” It is true, the tax was assessed upon real estate. But it was 'not claimed or intimated that the action was instituted for the purpose of removing, a cloud thrown over the title by a void assessment. The attention of the court was not called to any such question, and no relief of the hind was demanded. The court simply decided the case presented, that a court of equity would not interfere by way of injunction to prevent a mere trespass, when the remedy of the injured party was complete by an action at law. We do not intend to disturb that decision.
It is stated in the brief of the counsel for the plaintiffs that •the main purpose of this action was, if possible, to obtain froffi *60the court a construction of section 16, chapter 130, Laws 1868, 'as to the proper method for estimating the value of lands containing “ mines, minerals, quarries or other valuable deposits, known to be available therein.” We, however, decline entering .upon the consideration of the meaning and object of that section on this appeal. We are of the opinion that the court has jurisdiction of the subject matter of this action, and that the complaint states facts sufficient to entitle the plaintiffs to the relief demanded.
• By the Court. — The order of the circuit court, sustaining the demurrer to the eomplaint is reversed, and the cause remanded for further proceedings.