What Is a Predicate Offense in Money Laundering?

A predicate offense in money laundering is the underlying crime that produced the illegal money someone later tries to disguise through a financial transaction. Federal law calls these qualifying crimes “specified unlawful activities,” and the list is enormous: when you follow all the cross-references in 18 USC 1956, well over 200 individual federal offenses can serve as the predicate crime behind a laundering charge.¹ Without a predicate offense, there is no laundering case. The money just looks like money.

What the Predicate Offense Does in a Laundering Case

Money laundering means conducting a financial transaction with funds you know came from criminal activity. The predicate offense is the crime that generated those funds. It has to happen before or at the same time as the laundering, because you cannot launder money that hasn’t been produced yet.

The person doing the laundering does not have to be the person who committed the predicate crime. A common pattern puts one person at the center of the criminal operation and a separate financial facilitator in charge of moving and cleaning the proceeds. Both can be charged.

The knowledge requirement surprises most people. Prosecutors have to show the defendant knew the funds came from “some form” of criminal activity, but they do not have to prove the defendant knew which specific crime produced the money. Someone who processes drug proceeds thinking the cash came from fraud can still be convicted.¹ Under the companion statute, 18 USC 1957, the burden is lighter still: the government does not need to prove the defendant knew the predicate offense qualified as a “specified unlawful activity” at all.²

Which Crimes Qualify as Specified Unlawful Activities

Section 1956(c)(7) defines the categories, and it does so in layers. The statute first incorporates every “racketeering activity” listed in the federal RICO statute, which on its own covers dozens of crimes: mail fraud, wire fraud, financial institution fraud, counterfeiting, embezzlement from pension funds, robbery, extortion, theft of trade secrets, and trafficking in persons, among others.³

On top of the RICO list, the statute adds its own catalogue. The major categories include:

Drug crimes, including manufacturing, importing, selling, or distributing controlled substances, and operating a continuing criminal enterprise under the Controlled Substances Act.
Fraud offenses such as bank fraud, computer fraud, fraudulent loan applications, healthcare fraud, and schemes to defraud foreign banks.
Public corruption, including bribery of public officials, embezzlement of public funds, and violations of the Foreign Corrupt Practices Act.
Human trafficking, sexual exploitation of children, and commercial sex trafficking.
Environmental crimes, including felony violations of federal water pollution, ocean dumping, safe drinking water, and hazardous waste disposal laws, plus certain endangered species and wildlife trafficking offenses involving more than $10,000 in value.
Export and smuggling violations, including arms export violations and smuggling of items on the U.S. Munitions List or controlled under export regulations.
Cybercrime under the federal computer fraud and abuse statute, which reaches ransomware attacks, unauthorized access to protected systems, and large-scale data theft.

The list keeps going. The statute also reaches crimes under the Atomic Energy Act, the North Korea Sanctions Enforcement Act, certain food assistance fraud offenses, and many more. Congress wrote the specified unlawful activity framework broadly on purpose, so that virtually any profit-generating federal crime can anchor a money laundering charge.⁴

Foreign Crimes as Predicate Offenses

A predicate offense does not have to be committed in the United States. When a financial transaction touches the U.S. banking system, even partially, crimes committed abroad can qualify. The categories of foreign crimes that count include drug trafficking, murder, kidnapping, robbery, extortion, fraud against a foreign bank, bribery or embezzlement by a foreign public official, arms smuggling, and human trafficking.¹

The statute also pulls in any foreign offense that triggers an extradition obligation under a multilateral treaty. For non-U.S. citizens, extraterritorial jurisdiction attaches when the transaction occurs partly in the United States and involves more than $10,000. That gives federal prosecutors significant reach over international criminal networks that route money through American banks.

Tax Evasion Is Not a Predicate Offense

Here is the gap that catches people off guard. Tax evasion generates vast amounts of hidden money, yet no violation of the Internal Revenue Code appears on the specified unlawful activity list. Tax evasion, standing alone, is not a predicate offense for money laundering.

Prosecutors sometimes work around this by charging mail fraud or wire fraud when a taxpayer uses the mail or electronic communications to file a fraudulent return. Both mail fraud and wire fraud are specified unlawful activities, so they can bridge a tax scheme to a laundering charge. Department of Justice policy has historically restricted this route. Internal directives have required Tax Division approval before pursuing such charges and have warned that mail or wire fraud charges cannot be used to “convert routine tax prosecutions into RICO or money laundering cases.” The policy permits that bridge only where there is a large loss, a substantial pattern of conduct, or a significant benefit to adding those charges to standard tax violations.

Federal courts also disagree about whether taxes a defendant kept by not paying count as “proceeds” for money laundering purposes. Some circuits treat unpaid taxes as proceeds of mail fraud; others reject that theory. Whether a tax-based laundering charge survives can depend on where the case is prosecuted.

Why Proving the Predicate Offense Matters

A money laundering charge rises or falls on the government’s ability to show the money came from a crime. If prosecutors cannot connect the funds to a predicate offense, the transaction looks like ordinary financial activity. That is where most laundering defenses concentrate: breaking the link between the funds and the alleged crime.

Commingled funds are the recurring battleground. When a business owner mixes legitimate revenue with criminal proceeds in a single account and then makes a withdrawal, the question becomes whether that specific withdrawal contained tainted money. Federal courts have not settled on an answer. Some presume the dirty money went out first. Others presume the defendant spent clean funds if the account held enough legitimate money to cover the transaction. Under Section 1957, which requires the specific transaction to involve more than $10,000 of criminally derived property, mixed accounts make the government’s proof genuinely harder.²

With the specified unlawful activity list as broad as it is, prosecutors rarely struggle to point to a qualifying predicate crime. The hard part is proving the defendant knew the money was dirty and tracing those specific funds through the financial system. Knowledge, traceability, and a real connection to a predicate crime are what separate money laundering from everyday banking.

1
Office of the Law Revision Counsel. 18 USC 1956 Laundering of Monetary Instruments
2
Office of the Law Revision Counsel. 18 USC 1957 Engaging in Monetary Transactions in Property Derived From Specified Unlawful Activity
3
Office of the Law Revision Counsel. 18 USC 1961 Definitions
4
Office of the Law Revision Counsel. 18 US Code 1956 – Laundering of Monetary Instruments