
229 U.S. 481 (1913)
SINGER SEWING MACHINE COMPANY OF NEW JERSEY
v.
BENEDICT, TREASURER, &c. OF DENVER, COLORADO.
No. 289.
Supreme Court of United States.
Argued May 5, 1913.
Decided June 9, 1913.
APPEAL FROM THE CIRCUIT COURT OF APPEALS FOR THE EIGHTH CIRCUIT.
Mr. R.H. Gilmore and Mr. Henry A. Prince for appellant.
Mr. J.A. Marsh, with whom Mr. W.H. Bryant was on the brief, for appellees.
*483 MR. JUSTICE VAN DEVANTER delivered the opinion of the court.
This is a suit by the Singer Company, a New Jersey corporation, to enjoin the collection of taxes levied by the city and county of Denver, in the State of Colorado. The company made a return of taxable personal property at a valuation of $3,800, to which the assessor added other personalty at a valuation of $62,500, making a total assessment of $66,300, which was afterwards embodied in a tax list delivered to the treasurer for collection. The company tendered payment of $126.50, the amount of taxes due on the property returned by it, and refused to pay the amount attributable to the additional assessment. The treasurer declined to accept the tender, and was threatening to enforce the entire tax, when the suit was brought. The bill charged that the assessor, although required by law to give the company timely notice of the additional assessment, had failed to give it any notice, and that it was thereby prevented from presenting *484 objections to the increase and obtaining a hearing and ruling thereon by the assessor and by the proper reviewing authority to which it was entitled by the local law. There were also allegations to the effect that the company had no property within the city and county other than that returned by it; that the additional assessment and the taxes levied thereon were illegal because of the assessor's failure to give the required notice; and that to enforce the collection of such taxes would be violative of designated provisions of the Constitution of the United States. The defendants demurred on the ground that the bill did not state a case for equitable relief, but the demurrer was overruled. The defendants then answered repeating the objection made in the demurrer and interposing other defenses which need not be noticed now. Upon the hearing a decree was entered dismissing the bill, and the company appealed to the Circuit Court of Appeals. That court held that there was an adequate remedy at law, and affirmed the decree. 179 Fed. Rep. 628. The company then took the present appeal.
In the courts of the United States it is a guiding rule that a bill in equity does not lie in any case where a plain, adequate and complete remedy may be had at law. The statute so declares, Rev. Stat., § 723, and the decisions enforcing it are without number. If it be quite obvious that there is such a remedy, it is the duty of the court to interpose the objection sua sponte, and in other cases it is treated as waived if not presented by the defendant in limine. Reynes v. Dumont, 130 U.S. 354, 395; Allen v. Pullman's Palace Car Co., 139 U.S. 658. There was no waiver here. The objection was made by the demurrer and again by the answer, and so, if it was well grounded, it was as available to the defendants in the Circuit Court of Appeals to prevent a decree against them there as it was in the Circuit Court. Boise Artesian Water Co. v. Boise City, 213 U.S. 276.
*485 In the last case it was said of the pertinency of the guiding rule in cases such as this (p. 281): "A notable application of the rule in the courts of the United States has been to cases where a demand has been made to enjoin the collection of taxes or other impositions made by state authority, upon the ground that they are illegal or unconstitutional. The decisions of the state courts in cases of this kind are in conflict, and we need not examine them. It is a mere matter of choice of convenient remedy for a State to permit its courts to enjoin the collection of a state tax, because it is illegal or unconstitutional. Very different considerations arise where courts of a different, though paramount, sovereignty interpose in the same manner and for the same reasons. An examination of the decisions of this court shows that a proper reluctance to interfere by prevention with the fiscal operations of the state governments has caused it to refrain from so doing in all cases where the Federal rights of the persons could otherwise be preserved unimpaired. It has been held uniformly that the illegality or unconstitutionality of a state or municipal tax or imposition is not of itself a ground for equitable relief in the courts of the United States. In such a case the aggrieved party is left to his remedy at law, when that remedy is as complete, practicable and efficient as the remedy in equity."
A statute of Colorado enacted in 1870 (Laws 1870, p. 123, § 106) and embodied in subsequent revenue acts (2 Mills' Ann. Stat., § 3777; Laws 1902, c.3, pp. 43, 146, § 202; Rev. Stat. 1908, § 5750) declares that "in all cases where any person shall pay any tax, interest or costs, or any portion thereof, that shall thereafter be found to be erroneous or illegal, whether the same be owing to erroneous assessment, to improper or irregular levying of the tax, to clerical or others errors or irregularities, the board of county commissioners shall refund the same without abatement or discount to the taxpayer." This statute *486 imposes upon the county commissioners the duty of refunding, without abatement or discount, taxes which have been paid and are found to be illegal, and confers upon the taxpayer a correlative right to enforce that duty by an action at law. As long ago as 1879 the Supreme Court of the State, in holding that the invalidity of a tax afforded no ground for enjoining its enforcement, said of this statute: "Against an illegal tax complainant has a full and adequate remedy at law, and we see no reason why in this case he should not be remitted to that remedy." Price v. Kramer, 4 Colorado, 546, 555. And again: "The statute furnishes another remedy in such cases which is complete and adequate." Woodward v. Ellsworth, Id. 580, 581. And that this view of the statute still prevails is shown in Hallett v. Arapahoe County, 40 Colorado, 308, 318, decided in 1907, where, in refusing equitable relief against the collection of taxes alleged to be illegal, the court said (p. 318): "By § 3777, 2 Mills' Ann. Stat., it is provided that taxes paid which shall thereafter be found to be erroneous or illegal, shall be refunded, without abatement or discount, to the taxpayer. No statement appears in either of the complaints from which it can be deduced that the remedy afforded the plaintiff by this section is not adequate."
We refer to these cases, not as defining the jurisdiction in equity of the Circuit Court, for that they could not do (Payne v. Hook, 7 Wall. 425, 430; Whitehead v. Shattuck, 138 U.S. 146; Smythe v. Ames, 169 U.S. 466, 516), but as showing that the Colorado statute gave to one who should pay illegal taxes a right to recover back from the county the money so paid. This right was one which could be enforced by an action at law in the Circuit Court, no less than in the state courts, if the elements of Federal jurisdiction, such as diverse citizenship and the requisite amount in controversy, were present. Ex parte McNiel, 13 Wall. 236, 243; United States Mining Co. v. Lawson, *487 134 Fed. Rep. 769, 771. Thus it will be perceived that, if the taxes in question were illegal and void, as asserted, the company had a remedy at law. It could pay them and, if the commissioners refused to refund, have its action against the county to recover back the money. Such a remedy, as this court often has held, is plain, adequate and complete in the sense of the guiding rule before named, unless there be special circumstances showing the contrary. Dows v. Chicago, 11 Wall. 108, 112; State Railroad Tax Cases, 92 U.S. 575, 613-614; Shelton v. Platt, 139 U.S. 591, 597; Allen v. Pullman's Palace Car Co., Id. 658, 661; Indiana Manufacturing Co. v. Koehne, 188 U.S. 681, 686.
But it is said that in an action to recover back the money the tax list would be treated as the judgment of a special tribunal conclusively determining all questions in favor of the validity of the tax. It well may be that, if the list were regular on its face, it would be presumptive evidence that the tax was valid, but we find nothing in the statutes of Colorado or in the decisions of its Supreme Court which goes to the length suggested. The plain implication of the section providing for repayment is otherwise. Another section (Rev. Stat., § 5677) declares that the tax list "shall be prima facie evidence that the amount claimed is due and unpaid," and the only decision cited by the company speaks of the assessment as being presumptively right "in the absence of any evidence to the contrary." Singer Manufacturing Co. v. Denver, 46 Colorado, 50.
It also is said that there were special circumstances calling for equitable relief, in that the act of the assessor in making the additional assessment without giving any notice of it was necessarily a fraud, an accident, or a mistake. No such claim was made in the bill, and even had it been it would be unavailing unless founded upon something more than the charge that no notice was given and that *488 the company had no property within the city and county other than that returned by it. We say this because the fraud, accident or mistake which will justify equitable relief must be something more than what is fairly covered by the charge here made, for otherwise the well settled rule that mere illegality in a tax affords no ground for such relief would be a myth. There really would be no case in which the illegality could not be said with equal propriety to be the result of fraud, accident or mistake, for it always arises out of some deviation from law or duty.
Concluding, as we do, that the company had a plain, adequate and complete remedy at law, the decree dismissing the bill is
Affirmed.
