delivered the opinion of the Court:
The provision of the income tax law directly involved is found in subdivision 2 of the division a of sec. 2, as follows: “In addition to the income tax provided under this section (herein referred to as the normal income tax) there shall be levied, assessed, and collected upon the net income of every individual an additional income tax (herein referred to as the additional tax) of 1 per centum per annum upon the amount by which the total net income exceeds $20,000, and does not exceed $50.000, and 2 per centum per annum upon the amount by which the total net income exceeds $50,000 and does not exceed $75,000, 3 per centum per annum upon the amount by which the total net income exceeds $75,000 and does not exceed $100,000, 4 per centum per annum upon the amount by which the total net income exceeds $100,000 and does not exceed $250,000, 5 per centum per annum upon the amount by which the total net income exceeds $250,000 and does not exceed $500,000, and 6 per centum per annum upon the amount by which the total net income exceeds $500,000.”
At the threshold, we are confronted with a question of jurisdiction. The Judicial Code of the United States (act of Congress of March 3, 1911 [36 Stat. at L. 1163, chap. 231, Comp. Stat. 1913, § 1244]) sec. 267 provides that “suits in equity shall not be sustained in any court of the United States in any case where a plain, adequate, and complete remedy may be had at law.” Such a remedy at law is afforded the taxpayer for recovering a tax “in any manner wrongfully collected.” U. S. Rev. Stat. sees. 3220, 3226, and 3227, Comp. Stat. 1913, §§ 5944, 5949, 5950. These provisions are made applicable to the income tax law in division L of the act, as follows: “That all *147administrative, special, and general provisions of law, including tlie laws in relation to the assessment, remission, collection, and refund of internal-revenue taxes not heretofore specifically repealed and not inconsistent with the provisions of this section, are hereby extended and made applicable to all the provisions of this section and to the tax herein imposed.”
In England and in this country, the statutes have aimed at assuring the speedy collection of governmental revenues. In order that the revenues to meet the requirements of the government, may be assured, the courts have persistently refused an injunction or other extraordinary process to lend aid to taxpayers in attempts to defeat the collecting agents of the government. But to make absolute the restriction upon the Federal courts, Congress provided by § 3224 of the Revised Statutes that “no suit for the purpose of restraining the assessment or collection of any tax shall be maintained in any court.” While it has been contended that this restriction apxdies only to taxes improperly or erroneously assessed, the courts have held it to apply to assessments of taxes erroneously or illegally made under color of authority by the internal revenue officers having general jurisdiction of the subject of the assessment and collection of taxes. Snyder v. Marks, 109 U. S. 189, 27 L. ed. 901, 3 Sup. Ct. Rep. 157. The x>lea of unconstitutionality in the x>resent case grows out of a conceded exercise by the internal revenue officers of official power under color of authority. Indeed, plaintiffs, by making their returns of the normal tax, xwotesting only against the surtax, conceded the existence of a general authority to assess and collect income taxes.
The case of Pollock v. Farmers’ Loan & T. Co. 157 U. S. 429, 39 L. ed. 759, 15 Sup. Ct. Rep. 673; 158 U. S. 601, 39 L. ed. 1108, 15 Sup. Ct. Rep. 912, furnishes plaintiffs no relief. In that case, the injunction granted was at the instance of a stockholder of a corporation to prevent the x>aymeut of a tax under the income tax law of 1894. Chief Justice Fuller, on the question of jurisdiction, said: “The jurisdiction of a court of equity to prevent any threatened breach of trust in the inisa|)pli cation or diversion of the funds of a corporation by illegal payments *148out of its capital or profits lias been frequently sustained. * * * Tbe objection of adequate remedy at law was not raised below, nor is it now raised by appellees, if it could be entertained at all at this stage of tbe proceedings; and, so far as it was within tbe power of tbe government to do so, the question of jurisdiction, for tbe purposes of the case, was explicitly waived on tbe argument. Tbe relief sought was in respect of voluntary action by the defendant company, and not in respect of tbe assessment and collection themselves. Under these circumstances, we should not be justified in declining to proceed to judgment upon tbe merits.”
In Corbus v. Alaska Treadwell Gold Min. Co. 99 Fed. 334, tbe court, referring to tbe Pollock Gase, said: “Their [Mr. Justice White and Mr. Justice Harlan’s] opinion, with authorities cited, leads me to tbe conclusion that, bad tbe question of jurisdiction been raised in tbe court below, and insisted upon in the Supreme Court, tbe case would not have been beard upon its merits.” Mr. Justice Brewer, in delivering tbe opinion affirming tbe judgment in tbis case (187 U. S. 455, 47 L. ed. 256, 23 Sup. Ct. Rep. 157), said: “The thought suggested by tbe quotation from tbe opinion of tbe district judge impresses us forcibly. Evidently the plaintiff patterned bis proceeding upon Pollock v. Farmers’ Loan & T. Co. 157 U. S. 429, 39 L. ed. 759, 15 Sup. Ct. Rep. 673. But that case does not determine to what extent a court of equity will permit a stockholder to maintain a suit nominally against tbe corporation, but really for its benefit.” Tbe fact, therefore, that in tbe Pollock Gase tbe action was by injunction, furnishes no precedent here.
As we have observed, Congress has afforded a complete and adequate remedy at law open to all persons aggrieved by the collection of an erroneous or illegal revenue tax. Tbe taxpayer must pay tbe tax, and be may then bring an action to recover it back. Tbis, of itself, in tbe absence of statutory inhibition, would ordinarily be sufficient to warrant a refusal of injunctive relief. It may well be, however, even in tbe face of tbis prohibitive statute, that a court of equity would intervene upon a sufficient showing of irreparable damage. “Not only is it the *149general rule that equity will not restrain the collection of a tax on the mere ground of its illegality, but also, as appears by its legislation, Congress has attempted to enforce that rule and to require payment of a tax by the party charged therewith before injury as to its validity will bo permitted. See Pacific Steam Whaling Co. v. United States, 187 U. S. 447, 47 L. ed. 253, 23 Sup. Ct. Rep. 154. Now before a court of equity will in any way help a party to thwart this intent of Congress, -it should affirmatively and clearly appear that there is an absolute necessity for its interference in order to prevent irreparable injury. No considerations of mere convenience are sufficient.” Corbus v. Alaska Treadwell Gold Min. Co. 187 U. S. 455, 47 L. ed. 256, 23 Sup. Ct. Rep. 157.
Plaintiffs, however, have not even alleged that they would suffer irreparable damage. No showing lias been made in the bill upon which the court could predicate an inference that such damage would be sustained. Aside from the allegation that the tax will constitute a lien upon their real and personal property, the only ground of damage stated in the bill is “that the income tax assessments to be made by the Commissioner of Internal Revenue, against the plaintiffs, will be in part valid, and in part unconstitutional and invalid, and, being prima facie good, such assessments will constitute a cloud on the title of the plaintiffs to their said real and personal estate, and for the prevention or removal of which cloud the plaintiffs are entitled to, and do hereby, invoke the judicial power of the courts of equity of the United States.” This is not sufficient to warrant equitable relief. Ve are not convinced that the courts have relaxed or departed from the early rule announced in Snyder v. Marks, 109 U. S. 193, 27 L. ed. 903, 3 Sup. Ct. Rep. 157, where the court, considering a suit to restrain the collection of a revenue tax on tobacco, said: “The inhibition of sec. 3224 applies to all assessments of taxes, made under color of their offices, by internal revenue officers charged with general jurisdiction of the subject of assessing taxes against tobacco manufacturers. The remedy of a suit to recover back the tax after it is paid is provided by statute, and a suit to restrain its collection is forbidden. The *150remedy so given is exclusive, and no other remedy can be substituted for it. Such has been the current of decisions in the circuit courts of the United States, and we are satisfied it is a correct view of the law. Howland v. Soule, Deady, 413, Fed. Cas. No. 6,800; Pullan v. Kinsinger, 2 Abb. (U. S.) 94, Fed. Cas. No. 11,463; Robbins v. Freeland, 14 Int. Rev. Rec. 28, Fed. Cas. No. 11,883; Delaware R. Co. v. Prettyman, 17 Ont. Rev. Rec. 99, Fed. Cas. No. 3,767; United States v. Black, 11 Blatchf. 538, 543, Fed. Cas. No. 14,600; Kissinger v. Bean, 7 Biss. 60, Fed. Cas. No. 7,853 ; United States v. Pacific R. Co. 4 Dill. 66, 69, Fed. Cas. No. 15,983; Alkan v. Bean, 8 Biss. 83, Fed. Cas. No. 202; Kensett v. Stivers, 18 Blatchf. 397, 10 Fed. 517.”
Because of the failure of the remedy, it becomes unnecessary to consider the many legal and constitutional objections interposed by plaintiffs to the validity of the income tax law and the procedure under it. All of these objections will be open to plaintiffs in an action to recover the tax.
The decree is affirmed, with costs. Affirmed.
An appeal to the Supreme Court of the United States was allowed March 2, T915.