Syllabus
certiorari to the united states court of appeals for the fth circuit No. 21–1195. Argued November 2, 2022—Decided February 28, 2023 The Bank Secrecy Act (BSA) and its implementing regulations require U. S. persons with certain fnancial interests in foreign accounts to fle an annual report known as an “FBAR”—the Report of Foreign Bank and Financial Accounts. The statute imposes a maximum $10,000 penalty for nonwillful violations of the law. These reports are designed to help the government trace funds that may be used for illicit purposes and identify unreported income that may be subject to taxation. Petitioner Alexandru Bittner—a dual citizen of Romania and the United States—learned of his BSA reporting obligations after he returned to the United States from Romania in 2011, and he subsequently submitted the required annual reports covering fve years (2007 through 2011). The government deemed Bittner's late-fled reports defcient because the reports did not address all accounts as to which Bittner had either signatory authority or a qualifying interest. Bittner fled corrected FBARs providing information for each of his accounts—61 accounts in 2007, 51 in 2008, 53 in 2009 and 2010, and 54 in 2011. The government neither contested the accuracy of Bittner's new flings nor suggested that Bittner's previous errors were willful. But because the government took the view that nonwillful penalties apply to each account not accurately or timely reported, and because Bittner's fve late-fled annual reports collectively involved 272 accounts, the government calculated the penalty due at $2.72 million. Bittner challenged that penalty in court, arguing that the BSA authorizes a maximum penalty for non- willful violations of $10,000 per report, not $10,000 per account. The Fifth Circuit upheld the government's assessment.
Page Proof Pending Publication Held: The BSA's $10,000 maximum penalty for the nonwillful failure to fle a compliant report accrues on a per-report, not a per-account, basis. Pp. 92–101, 103–104.
(a) The Court begins with the terms of the most immediately relevant statutory provisions—31 U. S. C. § 5314, which delineates an individual's legal duties under the BSA, and § 5321, which outlines the penalties that follow for failing to discharge those duties. Section 5314 provides that the Secretary of the Treasury “shall” require certain persons to “keep records, fle reports, or keep records and fle reports” when they “mak[e] a transaction or maintai[n] a relation” with a “foreign fnancial agency.” The statute states that reports “shall contain” information about “the identity and address of participants in a transaction or relationship,” “the legal capacity in which a participant is acting,” and “the identity of real parties in interest,” along with a “description of the transaction.” Section 5314 does not speak of accounts or their number but rather the legal duty to fle reports which must include various kinds of information about an individual's foreign “transaction[s] or relationship[s].” Violation of § 5314's reporting obligation is binary: One fles a report “in the way and to the extent the Secretary prescribes,” or one does not; multiple willful errors may establish a violation of § 5314 but even a single mistake, willful or not, constitutes a § 5314 violation. The only distinction the law draws between a report containing a single mistake and one containing multiple mistakes concerns the appropriate penalty.
Section 5321 authorizes the Secretary to impose a civil penalty of up to $10,000 for “any violation” of § 5314. The “nonwillful” penalty provision in §§ 5321(a)(5)(A) and (B)(i) does not speak in terms of accounts but rather pegs the quantity of nonwillful penalties to the quantity of “violation[s].” Section 5314 provides that a violation occurs when an individual fails to fle a report consistent with the statute's commands. Multiple defcient reports may yield multiple $10,000 penalties, and even a seemingly simple defciency in a single report may expose an individual to a $10,000 penalty. But penalties for nonwillful violations accrue on a per-report, not a per-account, basis.
Page Proof Pending Publication To be sure, for certain cases that involve willful violations, the statute does tailor penalties to accounts. Section 5321 specifcally addresses a subclass of willful violations that involve “a failure to report the existence of an account or any identifying information required to be provided with respect to an account.” § 5321(a)(5)(D)(ii). In such cases, the Secretary may impose a maximum penalty of either $100,000 or 50% of “the balance in the account at the time of the violation”—whichever is greater. §§ 5321(a)(5)(C) and (D)(ii). The government maintains that because Congress explicitly authorized per-account penalties for some willful violations, the Court should infer that Congress meant to do so for analogous nonwillful violations. But the government's interpretation defes a traditional rule of statutory construction: When Congress includes particular language in one section of a statute and omits it from a neighbor, the Court normally understands that difference in language to convey a difference in meaning (expressio unius est exclusio alter ius). Here the statute twice provides evidence that when Congress wished to tie sanctions to account-level information, it knew exactly how to do so. Congress said in §§ 5321(a)(5)(C) and (D)(ii) that penalties for certain willful violations may be measured on a per-account basis. And Congress said in § 5321(a)(5)(B)(ii) that a person may invoke the reasonable cause exception only on a showing of per-account accuracy. But Congress did not say that the government may impose nonwillful penalties on a per-account basis. Pp. 92–96.
(b) The Court fnds a number of additional contextual clues that cut against the government's theory in this case. First, the government has repeatedly issued guidance to the public—in various warnings, fact sheets, and instructions—that seems to tell the public that the failure to fle a report represents a single violation exposing a nonwillful violator to one $10,000 penalty. While the government's guidance documents do not control the Court's analysis, courts may consider the inconsistency between the government's current view and its past views when weighing the persuasiveness of any interpretation it offers. Skidmore v. Swift & Co., 323 U. S. 134, 140.
Second, the drafting history of the nonwillful penalty provision undermines the theory the government urges the Court to adopt. In 1970, the BSA included penalties only for willful violations. In 1986, Congress authorized the imposition of penalties on a per-account basis for certain willful violations. When Congress amended the law again in 2004 to authorize penalties for nonwillful violations, Congress could have, but did not, simply use language from its 1986 amendment to extend per-account penalties for nonwillful violations.
Page Proof Pending Publication Still other features of the BSA and its regulatory scheme suggest the law aims to provide the government with a report suffcient to tip it to the need for further investigation, not to ensure the presentation of every detail or maximize revenue for each mistake. Consider that Congress declared that the BSA's “purpose” is “to require” certain “reports” or “records” that may assist the government in various kinds of investigations. § 5311. Absent is any indication that Congress sought to maximize penalties for every nonwillful mistake. Similarly, the Secretary's regulations implementing the BSA require individuals with fewer than 25 accounts to provide details about each account while individuals (like Bittner) with 25 or more accounts do not need to list each account or provide account-specifc details unless the Secretary requests more “detailed information.” 31 CFR § 1010.350(g)(1). Finally, the government's per-account penalty reading invites anomalies—for example, subjecting willful violators to lower penalties than nonwillful violators— avoided by reading the nonwillful penalty to apply on a per-report basis.
The government replies that the per-report interpretation risks the anomaly that the Secretary could formulate reporting requirements to require a separate report for each account and in that way effectively achieve a per-account penalty for nonwillful violations. What this proves is unclear, as the Secretary's discretion to require more (or fewer) reports is not at issue here, and in any event does not answer whether the Secretary may impose nonwillful penalties on a per-report or per-account basis. Pp. 96–101.
(c) Best read, the BSA treats the failure to fle a legally compliant report as one violation carrying a maximum penalty of $10,000. Pp. 103–104.
19 F. 4th 734, reversed and remanded.
Gorsuch, J., announced the judgment of the Court and delivered the opinion of the Court except as to Part II–C. Jackson, J., joined that opinion in full, and Roberts, C. J., and Alito and Kavanaugh, JJ., joined except for Part II–C. Barrett, J., fled a dissenting opinion, in which Thomas, Sotomayor, and Kagan, JJ., joined, post, p. 104.
Daniel L. Geyser argued the cause for petitioner. With him on the briefs were Angela M. Oliver, Rachael E. Ruben- stein, and Farley P. Katz.
Matthew Guarnieri argued the cause for the United States. With him on the brief were Solicitor General Pre logar, Deputy Assistant Attorney General Hubbert, Deputy Solicitor General Gannon, Francesca Ugolini, Arthur T.
Catterall, and Paul A. Allulis.* Page Proof Pending Publication Justice Gorsuch announced the judgment of the Court and delivered the opinion of the Court with respect to Parts I, II–A, II–B, and III, and an opinion with respect to Part II–C, in which Justice Jackson joins.
The Bank Secrecy Act and its implementing regulations require certain individuals to fle annual reports with the *Briefs of amici curiae urging reversal were fled for the American College of Tax Counsel by Caroline D. Ciraolo, Megan L. Brackney, and Caroline Rule; for the Center for Taxpayer Rights by Guinevere Moore, Zhanna A. Ziering, Ajay Gupta, and Aaron M. Esman; for the Chamber of Commerce of the United States of America by Joseph R. Palmore and Edward L. Froelich; and for the National Federation of Independent Business Small Business Legal Center et al. by Arthur G. Sapper, Elizabeth Mil ito, Ellen Steen, Travis Cushman, Thomas Ward, and Angelo I. Amador. Stephen M. Kohn and Rachel G. Talay fled a brief of amicus curiae urging affrmance for the National Whistleblower Center.
David E. Sloan fled a brief of amicus curiae for the American College of Trust and Estate Counsel.
federal government about their foreign bank accounts. The statute imposes a maximum $10,000 penalty for nonwillful violations of the law. But recently a question has arisen. Does someone who fails to fle a timely or accurate annual report commit a single violation subject to a single $10,000 penalty? Or does that person commit separate violations and incur separate $10,000 penalties for each account not properly recorded within a single report?
The answer makes a difference, especially for immigrants who hold accounts abroad and Americans who make their lives outside the country. On one view, penalties accrue on a per-report basis. So, for example, a single late-fled report disclosing the existence of 10 accounts may yield a maximum fne of $10,000. On another view, penalties multiply on a per-account basis, so the same report can invite a fne of $100,000 even if the individual's foreign holdings or total net worth do not approach that amount. Because the Ninth Circuit read the law one way and the Fifth Circuit the other, we agreed to take this case.
Page Proof Pending Publication
I
The Bank Secrecy Act (BSA) does not make it illegal to hold foreign accounts. Nor does the BSA tax those accounts. To the contrary, the federal government has acknowledged that “U. S. persons maintain overseas fnancial accounts for a variety of legitimate reasons including convenience and access.” IRS Pub. 5569, Report of Foreign Bank & Financial Accounts (FBAR) Reference Guide, p. 1 (Rev. 3–2022). As relevant here, the BSA simply requires those who possess foreign accounts with an aggregate balance of more than $10,000 to fle an annual report on a form known as an “FBAR”—the Report of Foreign Bank and Financial Accounts. 31 U. S. C. § 5314; 31 CFR § 1010.306 (2021). These reports are designed to help the government “trace funds” that may be used for “illicit purposes” and identify “unreported income” that may be subject to taxation separately under the terms of the Internal Revenue Code.
FBAR Reference Guide, at 1.
The facts of the Ninth and Fifth Circuit cases help illuminate the particular question about the BSA now before us. The frst dispute involved Jane Boyd, an American citizen who held 13 relevant accounts in the United Kingdom. The amounts in those accounts increased signifcantly after her father died in 2009 and she deposited her inheritance.
United States v. Boyd, 991 F. 3d 1077, 1079 (CA9 2021). Because the aggregate amount in Ms. Boyd's accounts exceeded $10,000 in 2009, she should have fled an FBAR in 2010. Neglecting to do so, she corrected the error in 2012, submitting a complete and accurate report at that time. Ibid. The government acknowledged that Ms. Boyd's violation of the law was “non-willful.” Still, the government said, it had the right to impose a $130,000 penalty—$10,000 for each of her 13 late-reported accounts. Ibid. Page Proof Pending Publication Ms. Boyd challenged the penalty in court where she argued that her failure to fle a single timely FBAR subjected her to a single maximum penalty of $10,000. The district court rejected that argument and sided with the government. United States v. Boyd, 123 AFTR 2d 2019–1651 (CD Cal. 2019). But in time the Ninth Circuit vindicated Ms.
Boyd's view, holding that the BSA authorizes “only one non- willful penalty when an untimely, but accurate, FBAR is fled, no matter the number of accounts.” 991 F. 3d, at 1078. More recently, the same question arose in the Fifth Circuit in a case involving Alexandru Bittner. Born and raised in Romania, Mr. Bittner immigrated to the United States at a young age in 1982. He worked frst as a dishwasher and later as a plumber and along the way became a naturalized citizen. After the fall of communism, Mr. Bittner returned to Romania in 1990 where he launched a successful business career. Like many dual citizens, he did not appreciate that U. S. law required him to keep the government apprised of his overseas fnancial accounts even while he lived abroad. 19 F. 4th 734, 739–740 (CA5 2021). Shortly after returning to the United States in 2011, Mr. Bittner learned of his reporting obligations and engaged an accountant to help him prepare the required reports—covering fve years, from 2007 through 2011. Id., at 739.
But the story did not end there. The government identifed a problem in the late-fled reports. While those reports provided details about Mr. Bittner's largest account, they neglected to address 25 or more other accounts over which he had signatory authority or in which he had a qualifying interest. Ibid. After the government informed him of this defciency, Mr. Bittner hired a new accountant who helped him fle corrected FBARs for each year in question. Ibid. Under governing regulations, flers with signatory authority over or a qualifying interest in fewer than 25 accounts must provide details about each account, but individuals with 25 or more accounts need only check a box and disclose the total number of accounts. 31 CFR § 1010.350(g). Instead of employing that expediency, however, Mr. Bittner and his new accountant volunteered details for each and every one of his accounts—61 accounts in 2007, 51 in 2008, 53 in 2009 and 2010, and 54 in 2011. 19 F. 4th, at 739–740.
Page Proof Pending Publication The question then turned to what penalty Mr. Bittner should pay. The government did not contest the accuracy of Mr. Bittner's new flings. Nor did the government suggest that his previous errors were willful. But because the government took the view that nonwillful penalties apply to each account not accurately or timely reported, and because Mr. Bittner's late-fled reports for 2007–2011 collectively involved 272 accounts, the government thought a fne of $2.72 million was in order. Id., at 739–740.
Like Ms. Boyd before him, Mr. Bittner challenged his penalty in court, arguing that the BSA authorizes a maximum penalty for nonwillful violations of $10,000 per report, not $10,000 per account. As he put it, an individual's failure to fle fve reports in a timely manner might invite a penalty of $50,000, but it cannot support a penalty running into the millions. The district court agreed with Mr. Bittner's reading of the law, 469 F. Supp. 3d 709, 724–726 (ED Tex. 2020), but the Fifth Circuit upheld the government's assessment, 19 F. 4th, at 749.
II
With those facts in mind, the question before us boils down to this: Does the BSA's $10,000 penalty for nonwillful violations accrue on a per-report or a per-account basis? Mr. Bittner urges us to agree with the Ninth Circuit and hold that the law authorizes a single $10,000 fne for each untimely or inaccurate report. The government defends the judgment of the Fifth Circuit and asks us to hold that a new $10,000 penalty attaches to each account not timely or accurately disclosed within a report.
Page Proof Pending Publication
A
To resolve who has the better reading of the law, we begin with the terms of the most immediately relevant statutory provisions, 31 U. S. C. § 5314 and § 5321. The frst delineates an individual's legal duties under the BSA, the second outlines the penalties that follow for failing to discharge those duties.
Section 5314 provides that the Secretary of the Treasury “shall” require certain persons to “keep records, fle reports, or keep records and fle reports” when they “mak[e] a transaction or maintai[n] a relation” with a “foreign fnancial agency.” § 5314(a). When it comes to the duty to fle reports, the relevant duty in our case, the statute says that reports “shall contain” information about “the identity and address of participants in a transaction or relationship,” “the legal capacity in which a participant is acting,” and “the identity of real parties in interest,” along with a “description of the transaction.” §§ 5314(a)(1)–(4). The law also directs the Secretary to prescribe “the way and . . . the extent” to which reports must be fled. § 5314(a).
Immediately, one thing becomes clear. Section 5314 does not speak of accounts or their number. The word “account” does not even appear. Instead, the relevant legal duty is the duty to fle reports. Of course, those reports must include various kinds of information about an individual's foreign “transaction[s] or relationship[s].” But whether a report is fled late, whether a timely report contains one mistake about the “address of [the] participants in a transaction,” or whether a report includes multiple willful errors in its “description of . . . transaction[s],” the duty to supply a compliant report is violated. Put another way, the statutory obligation is binary. Either one fles a report “in the way and to the extent the Secretary prescribes,” or one does not. Multiple willful errors about specifc accounts in a single report may confrm a violation of § 5314, but even a single nonwillful mistake is enough to pose a problem. One way or another, § 5314 is violated. The only distinction the law draws between these cases concerns the appropriate penalty.
Page Proof Pending Publication That's where § 5321 comes in. As a baseline, § 5321(a)(5) authorizes the Secretary to impose a civil penalty of up to $10,000 for “any violation” of § 5314. 31 U. S. C. §§ 5321(a) (5)(A) and (B)(i). Some call this the “nonwillful” penalty provision. And here again, one thing is immediately apparent: The law still does not speak of accounts or their number. Instead, the statute pegs the quantity of nonwillful penalties to the quantity of “violation[s].” And as we have seen, § 5314 provides that a violation occurs when an individual fails to fle a report consistent with the statute's commands. So multiple defcient reports may yield multiple $10,000 penalties, and even a seemingly simple defciency in a single report may expose an individual to a $10,000 penalty. But in all cases, penalties for nonwillful violations accrue on a per- report, not a per-account, basis.1 To be sure, the statute's penalty provisions do not stop there. Section 5321 goes on to say that if an individual “willfully” violates § 5314, he may face a maximum penalty of $100,000. § 5321(a)(5)(C)(i)(I). The statute then adds an even more specifc rule for a subclass of willful violations— those that involve “a failure to report the existence of an account or any identifying information required to be provided with respect to an account.” § 5321(a)(5)(D)(ii). In cases like that, the law authorizes the Secretary to impose a maximum penalty of either $100,000 or 50% of “the balance in the account at the time of the violation”—whichever is greater. §§ 5321(a)(5)(C) and (D)(ii). So here, at last, the law does tailor penalties to accounts. But the statute does so only for a certain category of cases that involve willful violations, not for cases like ours that involve only nonwillful violations.
Page Proof Pending Publication No surprise, the government seeks to turn this feature of the law to its advantage. Because Congress explicitly authorized per-account penalties for some willful violations, the government asks us to infer that Congress meant to do so for analogous nonwillful violations as well. Brief for United States 20–23. But, in truth, this line of reasoning cuts against the government. When Congress includes particular language in one section of a statute but omits it from a neighbor, we normally understand that difference in language to convey a difference in meaning (expressio unius est exclusio alterius). The government's interpretation defes this traditional rule of statutory construction. See, e. g., De partment of Homeland Security v. MacLean, 574 U. S. 383, 391 (2015); Gallardo v. Marstiller, 596 U. S. –––, –––, ––– (2022).
1What, if any, mens rea the government must prove to impose a “nonwillful” penalty is not before us.
The government's problem repeats itself too. Section 5321(a)(5)(B)(ii) contains a “[r]easonable cause exception.” That exception allows an individual to escape a penalty (say for fling late) only if his violation was nonwillful, “due to reasonable cause,” and the report he eventually fles accurately refects each and every account.2 All of which supplies further evidence that, when Congress wished to tie sanctions to account-level information, it knew exactly how to do so. Congress said that penalties for certain willful violations may be measured on a per-account basis. Congress said that a person may invoke the reasonable cause exception only on a showing of per-account accuracy. But the one thing Congress did not say is that the government may impose nonwillful penalties on a per-account basis. Conspicuously, the one place in the statute where the government needs per-account language to appear is the one place it does not. In the end, the government's per-account theory faces not just a single expressio unius challenge but two.3 Page Proof Pending Publication The dissent founders on the same shoals. It suggests that the “pattern” of account-specifc language in the willful penalty provision and the reasonable cause exception “connot[es]” that the nonwillful penalty provision must operate on a per-account basis. Post, at 107, 109–110 (opinion of Barrett, J.). But (again), just because two provisions in the law are similar does not mean we may ignore differences found in a third. Seeking a way around the problem, the 2At argument, the government explained that the reasonable cause exception works in this fashion to protect those who fle a late FBAR so long as the report they eventually fle accurately provides the required information. Tr. of Oral Arg. 57–58.
3What if an individual (like Mr. Bittner) fails to fle a timely report and later fles an inaccurate one—would the statute classify that as two violations of the duty to fle a statutorily compliant report rather than one? The parties do not join issue on the question and we do not pass upon it. Nor does the answer matter for present purposes. Either way, the statute conditions nonwillful penalties on the number of reports, not on the number of accounts.
dissent points to the fact that even a single qualifying foreign bank account “triggers” the duty to fle a report, and the fact that a compliant report must contain a “list of information” about bank addresses and the like. Post, at 105.
These features of the law, the dissent says, “underscor[e]” that nonwillful violations accrue per account. Ibid. But that simply does not follow. The fact that a person has a duty to fle a report, or provide certain information in a report, does not tell us whether penalties for nonwillful violations accrue per report or multiply per account without regard to an individual's net worth or foreign holdings.4
B
Widening our view beyond § 5314 and § 5321, we fnd other contextual clues pressing against the government's theory. Consider what the government itself has told the public about the BSA. In 2010, the Department of the Treasury issued a notice of proposed rulemaking warning that, under its proposed rules, “[a] person who is required to fle an FBAR and fails to properly fle may be subject to a civil penalty not to exceed $10,000.” 75 Fed. Reg. 8854 (2010). Elsewhere, the government has told suspected FBAR violators that “[f]or the failure to fle . . . the penalty cannot exceed $10,000.” IRS, Letter 3709, p. 1 (Mar. 2011). Instructions included with the FBAR form have cautioned that “[a] person who is required to fle an FBAR and fails to properly fle may be subject to a civil penalty not to exceed $10,000.” Page Proof Pending Publication 4The dissent also stresses that 31 U. S. C. § 5314 imposes two duties—a duty to fle reports and keep records. Post, at 106. From this, the dissent reasons, “if violations of [the] recordkeeping obligation accrue on a per-account basis, the same should be true of violations of [the] obligation to fle reports.” Ibid. But the question whether violations of the record- keeping duty accrue per account or on some other basis is not before us. Nor is it obvious why violations of two separate statutory duties must accrue in the same way—especially when the law authorizes the Secretary to “prescrib[e]” different “way[s]” the two duties may be discharged. § 5314(a).
IRS, Form TD F 90–22.1, p. 8 (Mar. 2011). An IRS “Fact Sheet” has advised that, “[f]or the FBAR, the penalty may be up to $10,000, if the failure to fle is non-willful.” IRS, Offshore Income and Filing Information for Taxpayers with Offshore Accounts, FS–2014–7 (June 2014). Ms. Boyd herself received a similarly worded letter alerting her that “ `[f]or the failure to fle [the FBAR] . . . the penalty cannot exceed $10,000.' ” Boyd, 991 F. 3d, at 1085, n. 11 (alterations in original and emphasis deleted).
None of these representations about the law's operation fts easily with the government's current theory. In all of these warnings, fact sheets, and instructions, the government seemed to tell the public that the failure to fle a report represents a single violation exposing a nonwillful violator to one $10,000 penalty. Nowhere in these materials did the government announce its current theory that a single defcient or untimely report can give rise to multiple violations, that the number of nonwillful penalties may turn on the number of accounts, or that the $10,000 maximum penalty may be multiplied 272 times or more without respect to an individual's foreign holdings or net worth.
Page Proof Pending Publication Doubtless, the government's guidance documents do not control our analysis and cannot displace our independent obligation to interpret the law. But this Court has long said that courts may consider the consistency of an agency's views when we weigh the persuasiveness of any interpretation it proffers in court. Skidmore v. Swift & Co., 323 U. S. 134, 140 (1944). Here, the government has repeatedly issued guidance to the public at odds with the interpretation it now asks us to adopt. And surely that counts as one more reason yet to question whether its current position represents the best view of the law.5 5The dissent expresses “surpris[e]” that we cite the government's guidance documents. Post, at 111. We don't see why. Our point is not that the administrative guidance is controlling. Nor is it that the government's guidance documents have consistently endorsed Mr. Bittner's readThe drafting history of the nonwillful penalty provision undermines the government's theory too. When Congress adopted the BSA in 1970, the law included penalties only for willful violations and capped them at $1,000. § 125(a), 84 Stat. 1117. It took many years before Congress in 1986 authorized the government to impose penalties on a per- account basis for certain willful violations. § 1357(c), 100 Stat. 3207–25. And it took many years more before Congress in 2004 amended the law again to authorize penalties for nonwillful violations. § 821(a), 118 Stat. 1586. When crafting this latest provision, it would have been the simplest thing for Congress to model its work on its 1986 amendment and authorize per-account penalties for nonwillful violations just as it had for certain willful ones. But Congress didn't do anything like that. The language it adopted for nonwillful penalties in 2004 bears scant resemblance to the language it used when authorizing per-account penalties for certain willful violations in 1986.
Page Proof Pending Publication Consider as well Congress's statement of purpose. Congress has declared that the BSA's “purpose” is “to require” certain “reports” or “records” that may assist the government in everything from criminal and tax to intelligence and counterintelligence investigations. 31 U. S. C. § 5311.6 ing of the law. It is simply that, when the government (or any litigant) speaks out of both sides of its mouth, no one should be surprised if its latest utterance isn't the most convincing one. This is no new principle in the law any more than it is in life. In Skidmore, this Court noted that the persuasiveness of an agency's interpretation of the law may be undermined by its inconsistency “with earlier [agency] pronouncements.” 323 U. S., at 140.
6“A preamble, purpose clause, or recital is a permissible indicator of meaning.” A. Scalia & B. Garner, Reading Law: The Interpretation of Legal Texts 217 (2012) (Scalia & Garner). See also 1 J. Story, Commentaries on the Constitution of the United States § 459, p. 443 (1833) (“[T]he preamble of a statute is a key to open the mind of the makers, as to the mischiefs, which are to be remedied, and the objects, which are to be accomplished by the provisions of the statute”).
Here we see further evidence that the relevant legal duty the BSA establishes is the duty to fle certain reports. We see evidence, too, that the point of these reports is to supply the government with information potentially relevant to various kinds of investigations, criminal and civil alike. But what we do not see is any indication that Congress sought to maximize penalties for every nonwillful mistake (whether a late fling, a transposed account number, or an out-of-date bank address). See Brief for American College of Trust and Estate Counsel as Amicus Curiae 5–7.7 The Secretary's regulations implementing the BSA convey the same message. Under those regulations, individuals with fewer than 25 accounts must provide details about each account while those (like Mr. Bittner) with 25 or more accounts do not need to list each one or provide account- specifc details about any of them. 31 CFR § 1010.350(g)(1). Instead, flers with 25 or more accounts “need only provide the number of fnancial accounts and certain other basic information.” Ibid. Naturally, an individual must supply more “detailed information” if the “Secretary or his delegate” later chooses to follow up and request it. Ibid. But no detailed account-level information is required in the fler's initial report. It's yet another feature of the BSA and its regulatory scheme that suggests the law aims to provide the government with a report suffcient to tip it to the need for further investigation, not to ensure the presentation of every detail or maximize revenue for each mistake.
Page Proof Pending Publication 7The dissent insists that its per-account theory would better advance “the statute's purpose” of cracking down on criminals and terrorists. Post, at 112. But few statutes pursue their stated “ `purpose at all costs.' ” Kucana v. Holder, 558 U. S. 233, 252 (2010). Nor is it clear how calculating nonwillful penalties on a per-account basis would advance the purpose the dissent attributes to the BSA. Are we to imagine that drug cartels and terrorists often make innocent mistakes when fling their FBARs? The Secretary's regulation also points to some of the anomalies that accompany the government's per-account theory. On the government's telling, an individual with, say, three accounts who makes nonwillful errors when providing details about these accounts faces a potential penalty of $30,000. He faces that penalty no matter how slight his errors, and regardless whether his foreign holdings (or even net worth) approach the same amount. Meanwhile, a person with 300 bank accounts runs far less risk of incurring any penalty. He doesn't have to provide any detail about his accounts, just correctly disclose how many he holds. See also Brief for American College of Tax Counsel as Amicus Curiae 15–16 (Brief for Tax Counsel).
Nor is this the only incongruity the government's theory invites. Consider someone who has a $10 million balance in a single account who nonwillfully fails to report that account. Everyone agrees he is subject to a single penalty of $10,000. Yet under the government's theory, another person engaging in the same nonwillful conduct with respect to a dozen foreign accounts with an aggregate balance of $10,001 would be subject to a penalty of $120,000. Id., at 14–15.
Page Proof Pending Publication On the government's view, too, those who willfully violate the law may face lower penalties than those who violate the law nonwillfully. For example, an individual who holds $1 million in a foreign account during the course of a year but withdraws it before the fling deadline and then willfully fails to fle an FBAR faces a maximum penalty of $100,000. But a person who errs nonwillfully in listing 20 accounts with an aggregate balance of $50,000 can face a penalty of up to $200,000. Id., at 14. Reading the law to apply nonwillful penalties per report invites none of these curiosities; the government's per-account theory invites them all.8 8The dissent suggests that these examples bear “limited relevance” because it is only “natura[l]” that a person “who violates the law many times” might incur more penalties. Post, at 112–113. But this assumes The government does not dispute any of this but replies that the per-report interpretation risks an anomaly of its own. After all, the government observes, the BSA affords the Secretary considerable discretion in formulating reporting requirements. So much so, the government contends, that the Secretary could require a separate report for each account and in that way effectively achieve a per-account penalty for nonwillful violations. Brief for United States 32. But what does this prove? Assuming the Secretary could require more frequent reports (a question not before us), that would mean the Secretary could also require less frequent reports (for example, every other year). Likewise, the Secretary could reduce the amount of information required in those reports (say, expanding the tick-box option to all flers, not just those with 25 or more accounts). Perhaps more fundamentally, whether the Secretary may lawfully ordain more or fewer reports does nothing to answer the question whether the Secretary may impose nonwillful penalties on a per-report or per-account basis. That question would still remain. Reply Brief 7–8.
Page Proof Pending Publication
C
To the extent doubt persists at this point about the best reading of the BSA, a venerable principle supplies a way to resolve it. Under the rule of lenity, this Court has long held, statutes imposing penalties are to be “construed strictly” against the government and in favor of individuals. Com missioner v. Acker, 361 U. S. 87, 91 (1959). Following that rule here requires us to favor a per-report approach that would restrain BSA penalties over a per-account theory that would greatly enhance them.
The government resists this conclusion by seeking to distinguish Acker. That case involved a penalty provision in that violations accrue on a per-account basis, which begs the very question at issue before us.
the Internal Revenue Code, the government emphasizes, while this case involves a penalty provision in the BSA.
Brief for United States 44–45. But that distinction makes no difference. The rule of lenity is not shackled to the Internal Revenue Code or any other chapter of federal statutory law. Instead, as Acker acknowledged, “[t]he law is settled that penal statutes are to be construed strictly,” and an individual “is not to be subjected to a penalty unless the words of the statute plainly impose it.” 361 U. S., at 91 (internal quotation marks omitted and emphasis added). Notably, too, Acker cited to and relied on cases applying this same principle to penalty provisions under a wide array of statutes, including the Communications Act of 1934, a bankruptcy law, and the National Banking Act. See ibid. (citing FCC v. American Broadcasting Co., 347 U. S. 284, 296 (1954); Keppel v. Tiffn Savings Bank, 197 U. S. 356, 362 (1905); and Tiffany v. National Bank of Mo., 18 Wall. 409, 410 (1874)); see also Scalia & Garner 297 (the rule of lenity applies “to civil penalties”).
Page Proof Pending Publication Two additional features of this case make it a particularly appropriate candidate for the rule of lenity. First, the rule exists in part to protect the Due Process Clause's promise that “a fair warning should be given to the world in language that the common world will understand, of what the law intends to do if a certain line is passed.” McBoyle v. United States, 283 U. S. 25, 27 (1931); see also Connally v. General Constr. Co., 269 U. S. 385, 393 (1926); Wooden v. United States, 595 U. S. –––, ––– – ––– (2022) (Gorsuch, J., concurring in judgment). And the government's current theory poses a serious fair-notice problem. The relevant provisions of the BSA nowhere discuss per-account penalties for non- willful violations. A number of the government's own public guidance documents have seemingly warned of per- report, not per-account, penalties for nonwillful violations. See Part II–B, supra; Brief for Tax Counsel 6–24. We are even told that, until 2008 and 2009, when the government began aggressively enforcing FBAR penalties, “many experienced tax professionals and return preparers were not aware of the FBAR reporting obligations,” let alone aware of the government's current theory about the scope of penalties for nonwillful violations. Brief for Center for Taxpayer Rights as Amicus Curiae 24, 20–28, and n. 21. If many experienced accountants were unable to anticipate the government's current theory, we do not see how “the common world” had fair notice of it. McBoyle, 283 U. S., at 27.
Second, the question before us has criminal as well as civil ramifcations. Section 5321 outlines civil penalties for non- willful and willful “violation[s]” of the BSA. Next door, § 5322 provides criminal sanctions for “willfully violating” the Act. The term “violation” or “violating” is a constant between these two provisions. Accordingly, if the government were right that violations accrue on a per-account rather than a per-report basis under § 5321, the same rule would apply under § 5322. Each willfully misstated or late- reported account, rather than each defcient or late-fled report, would give rise to a separate criminal violation carrying the possibility of a $250,000 fne and fve years in prison. In a case like Mr. Bittner's, involving 5 reports and 272 accounts, that would mean a person who willfully violates the BSA could face a $68 million fne and 1,360 years in prison rather than a $1.25 million fne and 25 years in prison. In these circumstances, the rule of lenity, not to mention a dose of common sense, favors a strict construction. See Leocal Page Proof Pending Publication v. Ashcroft, 543 U. S. 1, 12, n. 8 (2004) (lenity applies when a disputed statutory provision has “both criminal and noncriminal applications”); see also FCC, 347 U. S., at 296; United States v. Thompson/Center Arms Co., 504 U. S. 505, 517–518 (1992) (plurality opinion).
III
Best read, the BSA treats the failure to fle a legally compliant report as one violation carrying a maximum penalty of $10,000, not a cascade of such penalties calculated on a per-account basis. Because the Fifth Circuit thought otherwise, we reverse its judgment and remand the case for further proceedings consistent with this opinion.
So ordered.