31 U.S.C. § 5324

(a) Domestic Coin and Currency Transactions Involving Financial Institutions .— No person shall, for the purpose of evading the reporting requirements of section 5313(a) or 5325 or any regulation prescribed under any such section, the reporting or recordkeeping requirements imposed by any order issued under section 5326, or the recordkeeping requirements imposed by any regulation prescribed under section 21 of the Federal Deposit Insurance Act or section 123 of Public Law 91–508 — (1) cause or attempt to cause a domestic financial institution to fail to file a report required under section 5313(a) or 5325 or any regulation prescribed under any such section, to file a report or to maintain a record required by an order issued under section 5326, or to maintain a record required pursuant to any regulation prescribed under section 21 of the Federal Deposit Insurance Act or section 123 of Public Law 91–508 ; (2) cause or attempt to cause a domestic financial institution to file a report required under section 5313(a) or 5325 or any regulation prescribed under any such section, to file a report or to maintain a record required by any order issued under section 5326, or to maintain a record required pursuant to any regulation prescribed under section 5326, or to maintain a record required pursuant to any regulation prescribed under section 21 of the Federal Deposit Insurance Act or section 123 of Public Law 91–508 , that contains a material omission or misstatement of fact; or (3) structure or assist in structuring, or attempt to structure or assist in structuring, any transaction with one or more domestic financial institutions. (b) Domestic Coin and Currency Transactions Involving Nonfinancial Trades or Businesses .— No person shall, for the purpose of evading the report requirements of section 5331 or any regulation prescribed under such section— (1) cause or attempt to cause a nonfinancial trade or business to fail to file a report required under section 5331 or any regulation prescribed under such section; (2) cause or attempt to cause a nonfinancial trade or business to file a report required under section 5331 or any regulation prescribed under such section that contains a material omission or misstatement of fact; or (3) structure or assist in structuring, or attempt to structure or assist in structuring, any transaction with 1 or more nonfinancial trades or businesses. (c) International Monetary Instrument Transactions .— No person shall, for the purpose of evading the reporting requirements of section 5316— (1) fail to file a report required by section 5316, or cause or attempt to cause a person to fail to file such a report; (2) file or cause or attempt to cause a person to file a report required under section 5316 that contains a material omission or misstatement of fact; or (3) structure or assist in structuring, or attempt to structure or assist in structuring, any importation or exportation of monetary instruments. (d) Criminal Penalty.— (1) In general .— Whoever violates this section shall be fined in accordance with title 18, United States Code, imprisoned for not more than 5 years, or both. (2) Enhanced penalty for aggravated cases .— Whoever violates this section while violating another law of the United States or as part of a pattern of any illegal activity involving more than $100,000 in a 12-month period shall be fined twice the amount provided in subsection (b)(3) or (c)(3) (as the case may be) of section 3571 of title 18 , United States Code, imprisoned for not more than 10 years, or both.