delivered the opinion of the Court.

This case presents the question whether a federal tax lien, unrecorded as of the time of bankruptcy, is valid as against the trustee in bankruptcy.

On June 3, 1960, a District Director of Internal Revenue assessed more than $14,000 in withholding taxes and interest against the Kurtz Roofing Company. Demand for payment was made, and the taxpayer refused to pay. This gave rise to a federal tax lien.1 Notice of the lien was not filed either in the Office of the Recorder of Erie County, Ohio, where Kurtz had its principal place of business, or in the United States District Court, at least *268not before February of 1961.2 On June 20, 1960, Kurtz filed a petition in bankruptcy. In the ensuing proceedings the trustee took the position that the federal tax lien was invalid as to him. He relied upon § 70c of the Bankruptcy Act, 11 U. S. C. § 110 (c) (1964 ed.), which, he asserted, vested in him the rights of a “judgment creditor,” and upon 26 U. S. C. § 6323 (1964 ed.), which entitles a “judgment creditor” to prevail over an unrecorded federal tax lien. Section 70c provides in part:

“The trustee, as to all property, whether or not coming into possession or control of the court, upon which a creditor of the bankrupt could have obtained a lien by legal or equitable proceedings at the date of bankruptcy, shall be deemed vested as of such date with all the rights, remedies, and powers of a creditor then holding a lien thereon by such proceedings, whether or not such a creditor actually exists.”

Section 6323 provides in part:

“[T]he lien imposed by section 6321 shall not be valid as against any mortgagee, pledgee, purchaser, or judgment creditor until notice thereof has been filed by the Secretary or his delegate

The trustee’s position, in short, was that his statutory lien attached to all property of the bankrupt as of the date of filing of the petition; that he was a statutory “judgment creditor”; and that, under § 6323, the unrecorded tax lien of the United States was not valid against him. This position, if sustained, would reduce the Government’s claim for unpaid taxes to the status of an unse*269cured claim, sharing fourth-class priority with unsecured state and local tax claims under § 64a (4) of the Bankruptcy Act, 11 U. S. C. §104 (a) (4) (1964 ed.), and ranking behind administrative expenses, certain wage claims, and specified creditors’ expenses.3 The result in the present case is that instead of recovering the full amount owing to it, the United States would receive only 53.48%.

The trustee’s position was affirmed by the referee, the District Court, and the Court of Appeals for the Sixth Circuit. 335 F. 2d 311. Certiorari was granted, 379 U. S. 958, to resolve the conceded conflict between decisions of Courts of Appeals for the Second, Third, and Ninth Circuits4 and the decision below. We affirm.

Despite the language of the applicable statutory provisions, § 70c and § 6323, most of the Courts of Appeals passing on the question have sustained the validity of an unrecorded federal tax lien as against the trustee in bankruptcy. They have arrived at this result on the authority of a statement in United States v. Gilbert Associates, Inc., 345 U. S. 361, 364, that the phrase *270“judgment creditor” in § 3672, the predecessor of § 6323, was used by Congress “in the usual, conventional sense of a judgment of a court of record . . . .”

It is clear, however, that this characterization was not intended to exclude a trustee in bankruptcy from the scope of the phrase “judgment creditor.” The issue before the Court in Gilbert was quite different.

Gilbert involved neither a bankruptcy proceeding nor the rights of a trustee in bankruptcy. Gilbert arose out of a state insolvency proceeding. The issue was whether an unrecorded federal tax lien was valid as against a municipal tax assessment which had neither been reduced to judgment nor accorded “judgment creditor” status by any statute. The asserted superior position of the local tax claim was based upon the fact that the New Hampshire court, in the Gilbert insolvency proceeding, had, for the first time, conveniently characterized the local tax claim as “in the nature of a judgment,” relying upon the procedures used by the taxing authorities.5 Because the effect of federal tax liens should not be determined by the diverse rules of the various States, the Court held that the municipality was not a “judgment creditor” for purposes of the federal statute. The Court said:

“A cardinal principle of Congress in its tax scheme is uniformity, as far as may be. Therefore, a ‘judgment creditor’ should have the same application in all the states. In this instance, we think Congress used the words ‘judgment creditor’ in § 3672 in the usual, conventional sense of a judgment of a court of record, since all states have such courts. We do not think Congress had in mind the action of taxing authorities who may be acting judicially as in New Hampshire and some other states, where the end result is something ‘in the nature of a judgment,’ *271while in other states the taxing authorities act quasi-judicially and are considered administrative bodies.” (Footnotes omitted.) 345 U. S., at 364.6

In view of the nature of the claim for which superiority was asserted and because its dominant theme was the need for uniformity in construing the meaning of § 3672, Gilbert cannot be considered as governing the entirely different situation with respect to the rights conferred by Congress upon a trustee in bankruptcy. In the latter circumstance we are confronted with a specific congressional Act defining the status of the trustee. We have no problem of evaluating widely differing state laws. We have no possibility of unequal application of the federal tax laws, depending upon variances in the terms and phraseology of different state and local tax assessment statutes and judicial rulings thereon. Here-we are faced with a uniform federal scheme — the rights of the trustee in bankruptcy in light of an unequivocal statement by Congress that he shall have “all” the rights of a judicial lien creditor with respect to the bankrupt’s property.

The legislative history lends support to the conclusion drawn from the statutory language that the purpose of Congress was to invalidate an unrecorded federal tax *272lien as against the trustee in bankruptcy. It was in 1910 that Congress enacted the predecessor of § 70c, vesting the trustee “with all the rights, remedies, and powers of a judgment creditor.” 7 Three years later, in 1913, Congress enacted the predecessor of § 6323, providing that an unrecorded federal tax lien was invalid as against a “judgment creditor.”8 These two statutes, with their corresponding references to “judgment creditor,” co-existed for nearly 40 years. During that period, and prior to our decision in Gilbert in 1953, the only Court of Appeals squarely to pass upon the question decided that the trustee was a “judgment creditor” for purposes of avoiding an unrecorded federal tax lien. United States v. Sands, 174 F. 2d 384, 385 (C. A. 2d Cir.), rejecting contrary dictum in In re Taylorcraft Aviation Corp., 168 F. 2d 808, 810 (C. A. 6th Cir.).

In amending the Bankruptcy Act in 1950, Congress deleted from § 70c the phrase “judgment creditor,” providing instead that whether or not the bankrupt’s property was in possession or control of the court, the trustee was to have “all the rights, remedies, and powers” of a creditor holding a judicial lien.9’ Elsewhere in the same *273legislation it was recognized that the category of those holding judicial liens includes judgment creditors/10 and a judicial lien holder generally has “greater rights than a judgment creditor.” 11 It is clear, therefore, that, with respect to the present problem, it was not the purpose of the 1950 amendments to reduce the powers of the trustee. As the House report accompanying the legislation noted, the revision of § 70c “has been placed in the bill for the protection of trustees in bankruptcy . . . also to simplify, and to some extent expand, the general expression of the rights of trustees in bankruptcy.” 12

In 1954 Congress dealt explicitly with the question whether the trustee ought to prevail against unrecorded federal tax liens. An unsuccessful effort was made, reflected in the House version of the proposed § 6323, expressly to exclude “artificial” judgment creditors like the trustee in bankruptcy.13 At conference, the House *274conferees acceded to the views of the Senate, which deemed it “advisable to continue to rely upon judicial interpretation of existing law instead of attempting to prescribe specific statutory rules.” 14 The Government suggests that the “existing law” sought to be preserved was this Court’s decision in Gilbert. But as of the date of the 1954 amendments, Gilbert had not yet been applied by any court to displace the rights of the trustee in bankruptcy as against an unrecorded federal tax lien. So far as that- issue is concerned, it is more likely that reference to “existing law” was to the specific and then unchallenged rule announced by the Second Circuit in United States v. Sands, supra, and by other courts in other cases holding the trustee to have the rights of a judgment creditor.15 As we have already noted, Gilbert is not inconsistent with the rule announced in Sands.

In recent years, and since the view began to spread that Gilbert compelled exclusion of the trustee from the benefits of § 6323, legislation has' been introduced expressly to reiterate the trustee’s power to upset unrecorded federal tax liens.16 Such legislation was proposed *275not to alter the statutory scheme, but to remove what was thought to be an erroneous gloss placed upon it by the courts. Thus, both Senate and House committee reports accompanying a recent bill, H. R. 394, 88th Cong., reflect the belief that those decisions upon which the Government now relies “would appear to be contrary to the legislative purpose which gave the trustee all the rights of an ideal judicial lien creditor.” 17

In light of these legislative materials — the adoption of the phrase “judgment creditor” in both statutes, the legislative broadening of § 70c in 1950, and the expressions of congressional discontent with recent decisions excluding the trustee from § 6323 — we are persuaded that, read together, § 6323 and § 70c entitle the trustee to prevail over unrecorded federal tax liens.

The Government seeks to ward off this result with the argument that so to read the statutes is to confer upon certain classes of creditors “windfalls” unwarranted by the equities of their situation. The question may, however, be stated less invidiously than the argument indicates: it is whether the Government, unlike other creditors, and contrary to the general policy against secret liens, should be given advantage of a lien which it has not recorded as of the date of bankruptcy.18 It is true that the consequence of depriving the United States of claimed priority for its secret lien is to improve the relative position of creditors — if there are any not already protected by § 6323 — whose security was obtained subsequent to the Government’s lien and who, once the federal lien is invalidated, have a prior claim to *276the secured assets. And our decision will enhance the possibility that there will be something in the bankrupt’s estate for those claimants whose priorities are higher than that afforded unsecured tax claims,19 as well as for state and local tax claims which share with the Federal Government the priority in § 64a (4), 11 U. S. C. §104 (a)(4). Whether this result is inadvisable need not detain us,20 for the question is one of policy which in our view has been decided by Congress in favor of the trustee. In any event, it is possible for the Government in cases which it deems appropriate, to avoid a result which it regards with unhappiness by promptly filing notice of its lien.21 Should experience indicate that in-*277elusion of the trustee within § 6323 is inadvisable, the fact will not be lost upon Congress.

The Government advances one last and quite novel22 argument predicated upon § 67b of the Bankruptcy Act, 11 U. S. C. § 107 (b) (1964 ed.), which provides:

“The provisions of section 60 of this Act to the contrary notwithstanding, statutory liens [including those] for taxes and debts owing to the United States or to any State or any subdivision thereof . . . may be valid against the trustee, even though arising or perfected while the debtor is insolvent and within four months prior to the filing of the petition .... Where by such laws such liens are required to be perfected and arise but are not perfected before bankruptcy, they may nevertheless be valid, if perfected within the time permitted by and in accordance with the requirements of such laws . . . .”

*278The contention is that the lower court’s reading of § 70c and § 6323 cannot be correct, for it precludes the possibility which appears to be contemplated by § 67b — that a federal tax lien not perfected until after bankruptcy may nevertheless be “valid against the trustee.” We find no such inconsistency. The purpose of § 67b, insofar as tax claims are concerned, is to protect them from §60, 11 U. S. C. §96 (1964 ed.), which permits the trustee to avoid transfers made within four months of bankruptcy. Thus § 67b permits an otherwise inchoate federal tax claim to be “perfected” by assessment and demand within the four months prior to bankruptcy or afterwards.23 It does not nullify or purport to nullify the consequences which flow from the Government’s failure to file its perfected lien prior to the date when the trustee’s rights as a statutory judgment creditor attach — namely, on filing of the petition in bankruptcy.24 There is no indication in the language of § 67b, in the legislative history, or in decisions of any court, that the subsection was intended to affect the construction or application of § 6323. In any event, we should hesitate to read § 67b as relevant to the relationship between § 70c and § 6323, for Congress in the very legislation proposed to clarify the trustee’s rights under § 6323 did consider § 67b, and evidenced no awareness of interrelationship or of inconsistency.25

Affirmed.

dissenting.

Section 6323 of the 1954 Internal Revenue Code provides that an unfiled tax lien is not “valid as against any mortgagee, pledgee, purchaser, or judgment cred*279itor . . . The Court here holds that a bankruptcy trustee must be treated as if he were a “judgment creditor” thereby reducing government tax claims to the level of unsecured creditors. I am unable to agree. A bankruptcy trustee cannot be treated as a judgment creditor except by giving that term an entirely artificial, fictional meaning. The Court justifies this extraordinary twist of meaning by reference to § 70c of the Bankruptcy Act, 11 U. S. C. § 110 (c) (1964 ed.). That section, so far as here pertinent, provides:

“c. . . . The trustee, as to all property, whether or not coming into possession or control of the court, upon which a creditor of the bankrupt could have obtained a lien by legal or equitable proceedings at the date of bankruptcy, shall be deemed vested as of such date with all the rights, remedies, and powers of a creditor then holding a lien thereon by such proceedings, whether or not such a creditor actually exists.”

This language gives no intimation of a purpose to destroy a valid tax lien such as the Government had here when bankruptcy occurred. The section’s terms simply show a purpose to make sure that all the property the bankrupt had before bankruptcy will be vested in the trustee. It stretches this language entirely too much to say it was intended to change the law so drastically that the mere appointment of a trustee could render invalid a government tax lien which was perfectly valid the moment before bankruptcy. Nor can this section fairly be read as an attempt by Congress to nullify valid government tax liens by placing the claims of all unsecured creditors of the bankrupt on the same level as valid tax liens. In writing § 70c Congress was amending the bankruptcy law, not the government tax hen law that dates back nearly 100 years. I still think, as we said in United States v. Gilbert Associates, 345 *280U. S. 361, 364, that in enacting the predecessor of § 6323 Congress used the words “judgment creditor” in “the usual, conventional sense of a judgment of a court of record . . .'The Second, Third, and Ninth Circuits have so construed this section. I think they were right. The Court today gives frail and inadequate support, I think, for its judicial destruction of the Government's congressionally created lien.

I would reverse this judgment.