This case involves a nontax criminal prosecution in which the Government introduced petitioner's income tax returns to prove the offense against him. The question is whether the introduction of this evidence, over petitioner's Fifth Amendment objection, violated the privilege against compulsory self-incrimination when petitioner made the incriminating disclosures on his returns instead of then claiming the privilege.

* Petitioner, Roy Garner, was indicted for a conspiracy involving the use of interstate transportation and communication facilities to "fix" sporting contests, to transmit bets and information assisting in the placing of bets, and to distribute the resultant illegal proceeds. 18 U.S.C. §§ 371, 224, 1084, 1952.1 The Government's case was that conspirators bet on horse races either having fixed them or while in possession of other information unavailable to the general public. Garner's role in this scheme was the furnishing of inside information. The case against him included the testimony of other conspirators and telephone toll records that showed calls from Garner to other conspirators before various bets were placed.

The Government also introduced, over Garner's Fifth Amendment objection, the Form 1040 income tax returns that Garner had filed for 1965, 1966, and 1967. In the 1965 return Garner had reported his occupation as "professional gambler," and in each return he reported substantial income from "gambling" or "wagering." The prosecution relied on Garner's familiarity with "the business of wagering and gambling," as reflected in his turns, to help rebut his claim that his relationships with other conspirators were innocent ones.

The jury returned a guilty verdict. Garner appealed to the Court of Appeals for the Ninth Circuit, contending that the privilege against compulsory self-incrimination entitled him to exclude the tax returns despite his failure to claim the privilege on the returns instead of making disclosures. Sitting en banc the Court of Appeals held that Garner's failure to assert the privilege on his returns defeated his Fifth Amendment claim. 501 F.2d 236.2 We agree.

In United States v. Sullivan, 274 U.S. 259, 47 S.Ct. 607, 71 L.Ed. 1037 (1927), the Court held that the privilege against compulsory self-incrimination is not a defense to prosecution for failing to file a return at all. But the Court indicated that the privilege could be claimed against specific disclosures sought on a return, saying:

"If the form of return provided called for answers that the defendant was privileged from making he could have raised the objection in the return, but could not on that account refuse to make any return at all." Id., at 263, 47 S.Ct., at 607, 71 L.Ed., at 1039.3

Had Garner invoked the privilege against compulsory self-incrimination on his tax returns in lieu of supplying the information used against him, the Internal Revenue Service could have proceeded in either or both of two ways. First, the Service could have sought to have Garner criminally prosecuted under § 7203 of the Internal Revenue Code of 1954 (Code), 26 U.S.C. § 7203, which proscribes, among other things, the willful failure to make a return.4 Second, the Service could have sought to complete Garner's returns administratively "from (its) own knowledge and from such information as (it could) obtain through testimony or otherwise." 26 U.S.C. § 6020(b)(1). Section 7602(2) of the Code authorizes the Service in such circumstances to summon the taxpayer to appear and to produce records or give testimony. 26 U.S.C. § 7602(2).5 If Garner had persisted in his claim when summoned, the Service could have sued for enforcement in district court, subjecting Garner to the threat of the court's contempt power. 26 U.S.C. § 7604.6

Given Sullivan, it cannot fairly be said that taxpayers are "volunteers" when they file their tax returns. The Government compels the filing of a return much as it compels, for example, the appearance of a "witness"7 before a grand jury. The availability to the Service of § 7203 prosecutions and the summons procedure also induces taxpayers to disclose unprivileged information on their returns. The question, however, is whether the Government can be said to have compelled Garner to incriminate himself with regard to specific disclosures made on his return when he could have claimed the Fifth Amendment privilege instead.

"(A) witness protected by the privilege may rightfully refuse to answer unless and until he is protected at least against the use of his compelled answers and evidence derived therefrom in any subsequent criminal case in which he is a defendant. Kastigar v. United States, 406 U.S. 441, 92 S.Ct. 1653, 32 L.Ed.2d 212 (1972). Absent such protection, if he is nevertheless compelled to answer, his answers are inadmissible against him in a later criminal prosecution. Bram v. United States, (168 U.S. 532, 18 S.Ct. 183, 42 L.Ed. 568 (1897)); Boyd v. United States, (116 U.S. 616, 6 S.Ct. 524, 29 L.Ed. 746 (1886))." Lefkowitz v. Turley, 414 U.S. 70, 78, 94 S.Ct. 316, 322, 38 L.Ed.2d 274, 282 (1973).

See Murphy v. Waterfront Comm'n, 378 U.S. 52, 57 n. 6, 84 S.Ct. 1594, 1598, 12 L.Ed.2d 678, 682 (1964).

Because the privilege protects against the use of compelled statements as well as guarantees the right to remain silent absent immunity, the inquiry in a Fifth Amendment case is not ended when an incriminating statement is made in lieu of a claim of privilege. Nor, however, is failure to claim the privilege irrelevant.

The Court has held that an individual under compulsion to make disclosures as a witness who revealed information instead of claiming the privilege lost the benefit of the privilege. United States v. Kordel, 397 U.S. 1, 7-10, 90 S.Ct. 763, 766-769, 25 L.Ed.2d 1, 7-9 (1970). Although Kordel appears to be the only square holding to this effect, the Court frequently has recognized the principle in dictum. Maness v. Meyers, 419 U.S. 449, 466, 95 S.Ct. 584, 42 L.Ed.2d 574, 587 (1975); Rogers v. United States, 340 U.S.67, 370-371, 71 S.Ct. 438, 440-441, 95 L.Ed. 344, 347-348 (1951); Smith v. United States, 337 U.S. 137, 150, 69 S.Ct. 1000, 1007, 93 L.Ed. 1264, 1273 (1949); United States v. Monia, 317 U.S. 424, 427, 63 S.Ct. 409, 410, 87 L.Ed. 376, 379 (1943); United States ex rel. Vajtauer v. Commissioner of Immigration, 273 U.S. 103, 112-113, 47 S.Ct. 302, 306, 71 L.Ed. 560, 565-566 (1927).8 These decisions stand for the proposition that, in the ordinary case, if a witness under compulsion to testify makes disclosures instead of claiming the privilege, the government has not "compelled" him to incriminate himself.9

"The Amendment speaks of compulsion. It does not preclude a witness from testifying voluntarily in matters which may incriminate him. If, therefore, he desires the protection of the privilege, he must claim it or he will not be considered to have been 'compelled' within the meaning of the Amendment." United States v. Monia, supra, 317 U.S., at 427, 63 S.Ct. at 410, 87 L.Ed. at 380 (footnote omitted).

In their insistence upon a claim of privilege, Kordel and the older witness cases reflect an appropriate accommodation of the Fifth Amendment privilege and the generally applicable principle that governments have the right to everyone's testimony. Mason v. United States, 244 U.S. 362, 364-365, 37 S.Ct. 621, 622, 61 L.Ed. 1198, 1199 (1917); see, E. g., Branzburg v. Hayes, 408 U.S. 665, 688, 92 S.Ct. 2646, 2660, 33 L.Ed.2d 626, 643 (1972); Kastigar v. United States, supra, 406 U.S. 441, 443-445, 92 S.Ct. 1653, 1655-1656, 32 L.Ed.2d 212, 215-217 (1972). Despite its cherished position, the Fifth Amendment addresses only a relatively narrow scope of inquiries. Unless the government seeks testimony that will subject its giver to criminal liability, the constitutional right to remain silent absent immunity does not arise. An individual therefore properly may be compelled to give testimony, for example, in a noncriminal investigation of himself. See, E. g., Gardner v. Broderick, 392 U.S. 273, 278, 88 S.Ct. 1913, 1916, 20 L.Ed.2d 1082, 1086 (1968). Unless a witness objects, a government ordinarily may assume that its compulsory processes are not eliciting testimony that he deems to be incriminating. Only the witness knows whether the apparently innocent disclosure sought may incriminate him, and the burden appropriately lies with him to make a timely assertion of the privilege. If, instead, he discloses the information sought, any incriminations properly are viewed as not compelled.

In addition, the rule that a witness must claim the privilege is consistent with the fundamental purpose of the Fifth Amendment the preservation of an adversary system of criminal justice. See Tehan v. United States ex rel. Shott, 382 U.S. 406, 415, 86 S.Ct. 459, 464, 15 L.Ed.2d 453, 459 (1966). That system is undermined when a government deliberately seeks to avoid the burdens of independent investigation by compelling self-incriminating disclosures. In areas where a government cannot be sd to be compelling such information, however, there is no such circumvention of the constitutionally mandated policy of adversary criminal proceedings. Cf. Counselman v. Hitchcock, 142 U.S. 547, 562-565, 12 S.Ct. 195, 198-199, 35 L.Ed. 1110, 1113-1115 (1892); California v. Byers, 402 U.S. 424, 456-458, 91 S.Ct. 1535, 1552-1553, 29 L.Ed.2d 9, 33-35 (1971) (Harlan, J., concurring in judgment).

The information revealed in the preparation and filing of an income tax return is, for purposes of Fifth Amendment analysis, the testimony of a "witness," as that term is used herein. Since Garner disclosed information on his returns instead of objecting, his Fifth Amendment claim would be defeated by an application of the general requirement that witnesses must claim the privilege. Garner, however, resists the application of that requirement, arguing that incriminating disclosures made in lieu of objection are "compelled" in the tax-return context. He relies specifically on three situations in which incriminatory disclosures have been considered compelled despite a failure to claim the privilege.10 But in each of these narrowly defined situations, some factor not present here made inappropriate the general rule that the privilege must be claimed. In each situation the relevant factor was held to deny the individual a "free choice to admit, to deny, or to refuse to answer." Lisenba v. California, 314 U.S. 219, 241, 62 S.Ct. 280, 292, 86 L.Ed. 166, 182 (1941). For the reasons stated below, we conclude that no such factor deprived Garner of that free choice.

Garner relies first on cases dealing with coerced confessions, E. g., Miranda v. Arizona, 384 U.S. 436, 86 S.Ct. 1602, 16 L.Ed.2d 694 (1966), where the Court has required the exclusion of incriminating statements unless there has been a knowing and intelligent waiver of the privilege regardless of whether the privilege has been claimed. Id., at 467-469, 475-477, 86 S.Ct. at 1624-1625, 1628-1629, 16 L.Ed.2d at 719-721, 724-725. Garner notes that it has not been shown that his failure to claim the privilege was such a waiver.

It is evident that these cases have little to do with disclosures on a tax return. The coerced-confession cases present the entirely different situation of custodial interrogation. See Id., at 467, 86 S.Ct. at 1624, 16 L.Ed.2d at 719. It is presumed that without proper safeguards the circumstances of custodial interrogation deny an individual the ability freely to choose to remain silent. See Ibid. At the same time, the inquiring government is acutely aware of the potentially incriminatory nature of the disclosures sought. Thus, any pressures inherent in custodial interrogation are compulsions to incriminate, not merely compulsions to make unprivileged disclosures. Because of the danger that custodial interrogation posed to the adversary system favored by the privilege, the Court in Miranda was impelled to adopt the extraordinary safeguard of excluding statements made without a knowing and intelligent waiver of the privilege. Id., at 467, 475-476, 86 S.Ct., at 1624, 1628-1629, 16 L.Ed.2d at 719, 724-725; see Michigan v. Mosley, 423 U.S. 96, 97, 96 S.Ct. 321, 324, 46 L.Ed.2d 313, 319 (1975); Schneckloth v. Bustamonte, 412 U.S. 218, 246-247, 93 S.Ct. 2041, 2057-2058, 36 L.Ed.2d 854, 873-874 (1973). Nothing in this case suggests the need for a similar presumption that a taxpayer makes disclosures on his return rather than claims the privilege because his will is overborne. In fact, a taxpayer, who can complete his return at leisure and with legal assistance, is even less subject to the psychological pressures at issue in Miranda than a witness who has been called to testify in judicial proceedings. Cf. United States v. Kordel, 397 U.S., at 9-10, 90 S.Ct., at 768-769, 25 L.Ed.2d, at 8-10; Miranda, supra, 384 U.S., at 461, 86 S.Ct. at 1620, 16 L.Ed.2d at 716.

Garner relies next on Mackey v. United States, 401 U.S. 667, 91 S.Ct. 1160, 28 L.Ed.2d 404 (1971), the relevance of which can be understood only in light of Marchetti v. United States, 390 U.S. 39, 88 S.Ct. 697, 19 L.Ed.2d 889 (1968), and Grosso v. United States, 390 U.S. 62, 88 S.Ct. 709, 19 L.Ed.2d 906 (1968). In the latter cases the Court considered whether the Fifth Amendment was a defense in prosecutions for failure to file the returns required of gamblers in connection with the federal occupational and excise taxes on gambling. The Court found that any disclosures made in connection with the payment of those taxes tended to incriminate because of the pervasive criminal regulation of gambling activities. Marchetti, supra, 390 U.S., at 48-49, 88 S.Ct. at 702-703, 19 L.Ed.2d at 897-898; Grosso, supra, 390 U.S., at 66-67, 88 S.Ct. at 712-713, 19 L.Ed.2d at 911-912. Since submitting a claim of privilege in lieu of the returns also would incriminate, the Court held that the privilege could be exercised by simply failing to file.11

In Mackey, the disclosures required in connection with the gambling excise tax had been made before Marchetti and Grosso were decided. Mackey's returns were introduced in a criminal prosecution for income tax evasion. Although a majority of the Court considered the disclosures on the returns to have been compelled incriminations, 401 U.S., at 672, 91 S.Ct., at 1163, 28 L.Ed.2d, at 408 (plurality opinion); Id., at 704-705, 91 S.Ct. 1165-1166, 28 L.Ed.2d 427-428 (Brennan, J., concurring in judgment); Id., at 713, 91 S.Ct. 1170, 28 L.Ed.2d 432 (Douglas, J., dissenting), Mackey was not immunized against their use because Marchetti and Grosso were held nonretroactive. 401 U.S., at 674-675, 91 S.Ct., at 1164-1165, 28 L.Ed.2d, at 409-410 (plurality opinion); Id., at 700-701, 91 S.Ct. 1184, 28 L.Ed.2d 425-426 (Harlan, J., concurring in judgment).12 Garner assumes that if Mackey had made his disclosures after Marchetti and Grosso, they could not have been used against him. He then concludes that since Mackey would have been privileged to file no returns at all, Mackey stands for the proposition that an objection at trial always suffices to preserve the privilege even if disclosures have been made previously.

Assuming that Garner otherwise reads Mackey correctly,13 we do not think that case should be applied in this context. The basis for the holdings in Marchetti and Grosso was that the occupational and excise taxes on gambling required disclosures only of gamblers, the great majority of whom were likely to incriminate themselves by responding. Marchetti, supra, 390 U.S., at 48-49, 57, 88 S.Ct. at 702-703, 707, 19 L.Ed.2d at 897-898, 902; Grosso, supra, 390 U.S., at 66-68, 88 S.Ct., at 712-714, 19 L.Ed.2d at 911-912. Therefore, as in the coerced-confession cases, any compulsion to disclose was likely to compel self-incrimination.14 Garner is differently situated. Although he disclosed himself to be a gambler, federal income tax returns are not directed at those " 'inherently suspect of criminal activities.' " Marchetti, supra, 390 U.S. at 52, 88 S.Ct., at 704, 19 L.Ed.2d, at 900. As noted in Albertson v. SACB, 382 U.S. 70, 79, 86 S.Ct. 194, 199, 15 L.Ed.2d 165, 172 (1965), "the questions in (an) income tax return (are) neutral on their face and directed at the public at large." The great majority of persons who file income tax returns do not incriminate themselves by disclosing their occupation. The requirement that such returns be completed and filed simply does not involve the compulsion to incriminate considered in Mackey.15

Garner's final argument relies on Garrity v. New Jersey, 385 U.S. 493, 87 S.Ct. 616, 17 L.Ed.2d 562 (1967). There policemen summoned during an investigation of police corruption were informed that they could claim the privilege but that they would be discharged for doing so. The disclosures they made were introduced against them in subsequent criminal prosecutions. The Court held that the penalty of discharge for reliance on the privilege foreclosed a free choice to remain silent, and therefore had the effect of compelling the incriminating testimony given by the policemen. Garner notes that a taxpayer who claims the privilege on his return faces the possibility of a criminal prosecution under § 7203 for failure to make a return. He argues that the possibility of prosecution, like the threat of discharge in Garrity, compels a taxpayer to make incriminating disclosures rather than claim the privilege. This contention is not entirely without force, but we find it unpersuasive.

The policemen in Garrity were threatened with punishment for a concededly valid exercise of the privilege, but one in Garner's situation is at no such disadvantage. A § 7203 conviction cannot be based on a valid exercise of the privilege. This is implicit in the dictum of United States v. Sullivan, 274 U.S. 259, 47 S.Ct. 607, 71 L.Ed. 1037 (1927), that the privilege may be claimed on a return.16 Furthermore, the Court has held that an individual summoned by the Service to provide documents or testimony can rely on the privilege to defend against a § 7203 prosecution for failure to "supply any information." See United States v. Murdock, 290 U.S. 389, 54 S.Ct. 223, 78 L.Ed. 381 (1933) (Murdock II ); United States v. Murdock, 284 U.S. 141, 52 S.Ct. 63, 76 L.Ed. 210 (1931) (Murdock I ), disapproved on other grounds, Murphy v. Waterfront Comm'n, 378 U.S. 52, 84 S.Ct. 1594, 12 L.Ed.2d 678 (1964).17 The Fifth Amendment itself guarantees the taxpayer's insulation against liability imposed on the basis of a valid and timely claim of privilege, a protection broadened by § 7203's statutory standard of "willfulness."18

Since a valid claim of privilege cannot be the basis for a § 7203 conviction. Garner can prevail only if the possibility that a claim made on the return will be tested in a criminal prosecution suffices in itself to deny him freedom to claim the privilege. He argues that it does so, noting that because of the threat of prosecution under § 7203 a taxpayer contemplating a claim of privilege on his return faces a more difficult choice than does a witness contemplating a claim of privilege in a judicial proceeding. If the latter claims the protection of the Fifth Amendment, he receives a judicial ruling at that time on the validity of his claim, and he has an opportunity to reconsider it before being held in contempt for refusal to answer. Cf. Maness v. Meyers, 419 U.S., at 460-461, 95 S.Ct., at 592-593, 42 L.Ed.2d, at 584-585. A § 7203 prosecution, however, may be brought without a preliminary judicial ruling on a claim of privilege that would allow the taxpayer to reconsider.19

In essence, Garner contends that the Fifth Amendment guarantee requires such a preliminary-ruling procedure for testing the validity of an asserted privilege. It may be that such a procedure would serve the best interests of the Government as well as of the taxpayer, cf. Emspak v. United States, 349 U.S. 190, 213-214, 75 S.Ct. 687, 709-710, 99 L.Ed. 997, 1013-1014 (1955) (Harlan, J., dissenting), but we certainly cannot say that the Constitution requires it. The Court previously has considered Fifth Amendment claims in the context of a criminal prosecution where the defendant did not have the benefit of a preliminary judicial ruling on a claim of privilege. It has never intimated that such a procedure is other than permissible. Indeed, the Court has given some measure of endorsement to it. In Murdock I, supra, an individual was prosecuted under predecessors of § 7203 for refusing to make disclosures after being summoned by the Bureau of Internal Revenue.20 In this Court he contended, apparently on statutory grounds, that there could be no prosecution without a prior judicial enforcement suit to allow presentation of his claim of privilege to a court for a preliminary ruling. The Court said:

"While undoubtedly the right of a witness to refuse to answer lest he incriminate himself may be tested in proceedings to compel answer, there is no support for the contention that there must be such a determination of that question before prosecution for the willful failure so denounced." 284 U.S., at 148, 52 S.Ct., at 64, 76 L.Ed., at 213.

See also Quinn v. United States, 349 U.S. 155, 167-170, 75 S.Ct. 668, 675-677, 99 L.Ed. 964, 974-976 (1955); Emspak v. United States, supra, 349 U.S., at 213-214, 75 S.Ct., at 709-710, 99 L.Ed., at 1013-1014 (Harlan, J., dissenting).

We are satisfied that Murdock I states the constitutional standard. What is at issue here is principally a matter of timing and procedure. As long as a valid and timely claim of privilege is available as a defense to a taxpayer prosecuted for failure to make a return, the taxpayer has not been denied a free choice to remain silent merely because of the absence of a preliminary judicial ruling on his claim. We therefore do not agree that Garner was deterred from claiming the privilege in the sense that was true of the policemen in Garrity.

In summary, we conclude that since Garner made disclosures instead of claiming the privilege on his tax returns his disclosures were not compelled incriminations.21 He therefore was foreclosed from invoking the privilege when such information was later introduced as evidence against him in a criminal prosecution.

Affirmed.

Judgment affirmed.

Mr. Justice STEVENS took no part in the consideration or decision of this case.

Mr. Justice MARSHALL, with whom Mr. Justice BRENNAN joins, concurring in the judgment.

I agree with the Court that petitioner, having made incriminating disclosures on his income tax returns rather than having claimed the privilege against self-incrimination, cannot thereafter assert the privilege to bar the introduction of his returns in a criminal prosecution. I disagree, however, with the Court's rationale, which is far broader than is either necessary or appropriate to dispose of this case.

This case ultimately turns on a simple question whether the possibility of being prosecuted under 26 U.S.C. § 7203 for failure to make a return compels a taxpayer to make an incriminating disclosure rather than claim the privilege against self-incrimination on his return. In discussing this question, the Court notes that only a "willful" failure to make a return is punishable under § 7203, and that "a defendant could not properly be convicted for an erroneous claim of privilege asserted in good faith." Ante, at 663, n. 18. Since a good-faith erroneous assertion of the privilege does not expose a taxpayer to criminal liability, I would hold that the threat of prosecution does not compel incriminating disclosures in violation of the Fifth Amendment. The protection accorded a good-faith assertion of the privilege effectively preserves the taxpayer's freedom to choose between making incriminating disclosures and claiming his Fifth Amendment privilege, and I would affirm the judgment of the Court of Appeals for that reason.

Not content to rest its decision on that ground, the Court decides that even if a good-faith erroneous assertion of the privilege could form the basis for criminal liability, the threat of prosecution does not amount to compulsion. It is constitutionally sufficient, according to the Court, that a valid claim of privilege is a defense to a § 7203 prosecution. Ante, at 1186-1188. In so holding, the Court answers a question that by its own admission is not presented by the facts of this case. And, contrary to the implication contained in the Court's opinion, the question is one of first impression in this Court.

Citing United States v. Murdock, 284 U.S. 141, 52 S.Ct. 63, 76 L.Ed. 210 (1931) (Murdock I ), the Court observes that a taxpayer who claims the privilege on his return can be convicted of a § 7203 violation without having been given a preliminary ruling on the validity of his claim and a "second chance" to complete his return after his claim is rejected. The Court then leaps to the conclusion that the Fifth Amendment is satisfied as long as a valid claim of privilege is a defense to a § 7203 prosecution.

I accept the proposition that a preliminary ruling is not a prerequisite to a § 7203 prosecution. But cf. Quinn v. United States, 349 U.S. 155, 165-170, 75 S.Ct. 668, 674-677, 99 L.Ed. 964, 973-976 (1955). But it does not follow, and Murdock I does not hold, that the absence of a preliminary ruling is of no import in considering whether a defense of good-faith assertion of the privilege is constitutionally required.* It is one thing to deny a good-faith defense to a witness who is given a prompt ruling on the validity of his claim of privilege and an opportunity to reconsider his refusal to testify before subjecting himself to possible punishment for contempt. See, E. g., Maness v. Meyers, 419 U.S. 449, 460-461, 95 S.Ct. 584, 592-593, 42 L.Ed.2d 574, 584-585 (1975). It would be quite another to deny a good-faith defense to someone like petitioner, who may be denied a ruling on the validity of his claim of privilege until his criminal prosecution, when it is too late to reconsider. If, contrary to the undisputed fact, a taxpayer had no assurance of either a preliminary ruling or a defense of good-faith assertion of the privilege, he could claim the privilege only at the risk that an erroneous assessment of the law of self-incrimination would subject him to criminal liability. In that event, I would consider the taxpayer to have been denied the free choice to claim the privilege, and would view any incriminating disclosures on his tax return as "compelled" within the meaning of the Fifth Amendment. Only because a good-faith erroneous claim of privilege entitles a taxpayer to acquittal under § 7203 can I conclude that petitioner's disclosures are admissible against him.