18 USC 1957 prohibits knowingly engaging or attempting to engage in a covered monetary transaction involving more than $10,000 in criminally derived property from specified unlawful activity. It is not a general ban on every large cash purchase. The government must establish the required proceeds connection, knowledge, transaction, and jurisdictional circumstances. [1]
Follow the money and the statutory definitions
The statute defines a monetary transaction to include deposits, withdrawals, transfers, or exchanges through or to a covered financial institution in or affecting commerce. Criminally derived property means property constituting or derived from criminal proceeds. The transaction must involve more than $10,000 of the relevant criminally derived property, not merely money that seems suspicious. [1]
Tracing becomes important when an account contains both lawful and unlawful funds. Bank statements, source documents, and transaction timing can matter. The fact that a person handled a large amount is not a substitute for identifying the source and legally relevant transaction.
Knowledge differs from knowing the exact predicate
Section 1957(c) says the government need not prove the defendant knew the underlying offense was a specified unlawful activity. That does not eliminate the offense’s knowledge requirement concerning criminally derived property. Distinguish knowing the criminal character of funds from knowing the precise legal classification of the underlying crime. [1]
Section 1956 defines specified unlawful activity through a detailed list and cross-references. It also contains money-laundering offenses with additional purposes or knowledge requirements, such as promotion or concealment. Section 1957 should not simply be described as requiring proof of a concealment scheme in every case. [2]
Penalties and forfeiture
The ordinary Section 1957 maximum is ten years in prison, a fine, or both, with a special rule for specified pre-retail medical products. The statute permits an alternative fine of up to twice the criminally derived property involved. Separately, Section 982 requires forfeiture of property involved in a qualifying Section 1957 offense or traceable to it. [1][3]
The representation exception is narrow
The monetary-transaction definition excludes transactions necessary to preserve the Sixth Amendment right to representation. Do not treat that wording as unlimited permission to route criminal proceeds through an attorney or label unrelated payments legal fees. [1]
For related property procedures, see criminal forfeiture under Section 853 and civil forfeiture deadlines and defenses. Each remedy requires review of its own statute and notice.
Primary sources
- 18 USC 1957: Criminally derived property transactions
- 18 USC 1956: Laundering and definitions
- 18 USC 982: Criminal forfeiture
Sources checked: October 31, 2026.