Money Laundering Defense: 18 U.S.C. §§ 1956 & 1957 Explained

By Elizabeth Franklin-Best, Esq., and Christopher Zoukis, JD, MBA

The core federal money laundering statutes — 18 U.S.C. §§ 1956 and 1957 — are among the most powerful charging tools the government has, and they are written in dense, layered language that an aggressive prosecution often treats as broader than it really is. When you face money laundering charges, what a money laundering lawyer knows about the statutes’ internal limits — proceeds, tracing, design, knowledge — determines whether those limits get enforced in your case. At Elizabeth Franklin-Best, P.C., we defend individuals and businesses against federal money laundering allegations in district courts nationwide.

Section 1956 is the principal money laundering statute, reaching transactions designed to promote crime or conceal criminal proceeds. Section 1957 is a separate, related offense reaching large transactions in criminally derived property. Together they carry decades of potential exposure and aggressive forfeiture.

Money laundering law is built on a handful of Supreme Court decisions — Santos, Cuellar — and a guideline that punishes the underlying crime twice if the defense lets it. Working those authorities is what we do. Elizabeth Franklin-Best, our principal attorney, enters 2026 recognized by Best Lawyers in America as a “Best Lawyer” in Appellate Practice and ranked by Chambers USA for Litigation: White-Collar Crime & Government Investigations. Before we talk strategy, we map every element of every count against the financial record — and the place we do that first is a paid, one-hour initial consultation.

Money Laundering Charges: Quick Answer

Question	Answer
What does 18 U.S.C. § 1956 prohibit?	Conducting a financial transaction in criminal proceeds with intent to promote crime, to conceal the proceeds, or to evade reporting — and the international transport of criminal funds.
What does 18 U.S.C. § 1957 prohibit?	Knowingly engaging in a monetary transaction, through a financial institution, in criminally derived property worth more than $10,000.
What must the government prove?	Criminal proceeds from a specified unlawful activity, the defendant’s knowledge, and — for § 1956 — a promotional or concealment design.
What penalties can apply?	Section 1956 carries up to 20 years per count; § 1957 carries up to 10 years per count, plus heavy fines and forfeiture.
What is the first step with your firm?	A paid, one-hour initial consultation in which we walk the charged transactions against the statutes’ elements — proceeds, knowledge, and design — and the forfeiture exposure.

Key Takeaways

• Section 1956 is the principal money laundering statute; § 1957 is a separate, related transaction offense.
• Section 1956 has three intent theories: promotion of crime, concealment of proceeds, and evasion of reporting.
• Section 1957 reaches knowingly transacting more than $10,000 of criminally derived property — with no promotion or concealment requirement.
• Both statutes require that the funds be proceeds of a “specified unlawful activity” and that the defendant knew the funds were criminal proceeds.
• The government generally need not prove the defendant committed the underlying crime — only knowledge that the money was dirty.
• Merely spending criminal proceeds is not, by itself, concealment money laundering.
• After Santos and the 2009 amendment, “proceeds” generally means gross receipts — but the merger problem Santos identified still matters.
• Under Cuellar, hiding money while moving it is not enough; the move itself must be designed to conceal the money’s nature, source, or ownership.
• Willful blindness can substitute for knowledge only within strict limits — deliberate avoidance, not mere carelessness.
• Section 1956 carries up to 20 years per count; § 1957 up to 10 years; forfeiture is aggressive.
• Sentencing runs through USSG §2S1.1, which ties the offense level to the underlying crime or the value of the laundered funds.
• Knowledge, the promotional or concealment design, and the “proceeds” question are the key defense battlegrounds.

Section 1956: The Core Money Laundering Statute

Section 1956 is the central federal money laundering statute, and it is written in dense, conditional language. At its core, it reaches a person who conducts — or attempts to conduct — a financial transaction, knowing that the property involved represents the proceeds of some form of unlawful activity, where the property in fact is the proceeds of a “specified unlawful activity,” and where the transaction has one of several prohibited purposes. It anchors the cases we handle across our money laundering defense practice.

Those prohibited purposes define three distinct theories of money laundering:

• Promotional money laundering. The transaction is conducted with the intent to promote the carrying on of a specified unlawful activity — using criminal proceeds to fund and advance further crime.
• Concealment money laundering. The transaction is conducted knowing it is designed, in whole or in part, to conceal or disguise the nature, location, source, ownership, or control of the proceeds.
• Reporting-evasion money laundering. The transaction is conducted knowing it is designed to avoid a transaction reporting requirement under federal or state law.

Section 1956 also reaches the international transportation, transmission, or transfer of funds — moving criminal proceeds into or out of the United States with a prohibited purpose — and it contains a separate provision for government sting operations. Critically, § 1956(h) makes conspiracy to commit money laundering a separate crime, carrying the same penalties as the underlying laundering offense — a charge with its own rules, addressed in the dedicated conspiracy section below.

Applied Insight: The three theories are not interchangeable, and the defense should pin the government to the one it actually charged. Promotional laundering requires proof that proceeds were plowed back into crime; concealment laundering requires proof of a genuine disguising design. A charge that blurs the two — or that calls ordinary spending “concealment” — is vulnerable.

Section 1957: Monetary Transactions in Criminal Property

Section 1957 is a different and, in one respect, simpler offense. It reaches a person who knowingly engages or attempts to engage in a “monetary transaction” — a transaction through a financial institution — in criminally derived property of a value greater than $10,000, where the property is derived from a specified unlawful activity.

What makes § 1957 distinctive is what it does not require. It has no promotional-intent element and no concealment-design element. The government does not have to prove the defendant was trying to advance crime or hide anything. It need only prove that the defendant knowingly engaged in a transaction over $10,000 with property the defendant knew was criminally derived. In effect, § 1957 criminalizes simply spending or depositing large amounts of criminal proceeds through the banking system.

That breadth makes § 1957 a favorite of prosecutors, but it has its own limits. The $10,000 threshold is a real element. The transaction must run through a financial institution. The property must be traceable to a specified unlawful activity. And the defendant must have known the property was criminally derived. The statute also contains a carve-out defense lawyers should never forget: under § 1957(f)(1), a “monetary transaction” does not include one necessary to preserve a person’s Sixth Amendment right to representation — Congress’s answer to the fear that paying defense counsel with allegedly tainted funds would itself become a federal crime. Section 1957 carries up to 10 years per count.

Money Laundering Conspiracy (§ 1956(h))

Most money laundering indictments include a conspiracy count under § 1956(h), which makes it a crime to conspire to commit any offense under § 1956 or § 1957. A money laundering conspiracy carries the same penalties as the underlying laundering offense the conspirators agreed to commit, so a § 1956(h) count tied to a § 1956 object exposes a defendant to the full 20-year ceiling even if no completed transaction is ever proven. Prosecutors favor the conspiracy count because it lightens their proof: they need not show that any laundering transaction succeeded, only that an agreement to launder existed and that the defendant knowingly joined it.

The single most important feature of § 1956(h) is what it leaves out. In Whitfield v. United States, 543 U.S. 209 (2005), the Supreme Court held that a § 1956(h) conviction requires no proof of an overt act in furtherance of the conspiracy. The Court reasoned that, unlike the general conspiracy statute at 18 U.S.C. § 371 — which expressly conditions liability on at least one conspirator committing an overt act — § 1956(h) contains no such language, so it adopts the common-law rule that the agreement itself is the crime. The practical consequences are significant: the government can convict without proving a single laundering transaction was attempted, and because there is no overt-act element, ordinary withdrawal arguments and certain statute-of-limitations defenses become harder to mount, since the conspiracy is presumed to continue until its objectives are abandoned or achieved.

What the government must still prove is a genuine agreement. The elements are an agreement between two or more people to commit a substantive money laundering offense, the defendant’s knowledge of the agreement’s unlawful object, and the defendant’s knowing and voluntary decision to join it. The agreement is the heart of the offense, and it is where most conspiracy defenses live. Under Salinas v. United States, 522 U.S. 52 (1997), a conspirator need not agree to commit or facilitate every element of the substantive crime — it is enough that the defendant adopt the goal of furthering the criminal endeavor. That is a broad rule, but it still requires the government to prove that this defendant shared the specific objective of laundering criminal proceeds, not merely that the defendant did business with someone who turned out to be laundering money. Knowledge and a shared unlawful purpose, not mere association, separate a conspirator from an unwitting bystander.

A § 1956(h) charge also opens the door to Pinkerton liability. Under Pinkerton v. United States, 328 U.S. 640 (1946), a member of a conspiracy can be convicted of substantive money laundering offenses committed by co-conspirators in furtherance of the conspiracy, provided those offenses were reasonably foreseeable. That doctrine can multiply a single agreement into many substantive counts and sharply increase both the statutory exposure and the laundered-funds total that drives the Guidelines. Pinkerton has limits worth pressing: the substantive offense must fall within the scope of the agreement the defendant actually joined and must have been a reasonably foreseeable consequence of it, so a defendant who joined a narrow agreement is not automatically answerable for every transaction the broader enterprise later undertook.

The merger problem has a particular edge in the conspiracy setting, and it surfaces at sentencing through USSG §2S1.1. The Guideline contains a deliberate carve-out: the two-level enhancement under §2S1.1(b)(2)(B) for a § 1956 conviction does not apply when the defendant was convicted of a § 1956(h) conspiracy whose sole object was a § 1957 offense. Whether the conspiracy’s object was § 1956 or § 1957 laundering can therefore swing the offense level, and the government does not always plead the object precisely. Pinning the indictment and the verdict to a specific statutory object — and insisting that the laundering agreement be something more than the underlying crime simply paying its own expenses — is core conspiracy-defense work, both at the merger stage and in the Guidelines calculation.

Applied Insight: Because § 1956(h) needs no overt act, the defense cannot win a conspiracy count by showing that no laundering transaction was completed. The pressure points are the agreement itself — did this defendant share the object of laundering, or merely transact with someone who did — the scope of any agreement for Pinkerton purposes, and the precise statutory object that controls the §2S1.1 calculation.

What the Government Must Prove

Across both statutes, certain elements do the heavy lifting, and each is a point of defense.

Specified unlawful activity. The proceeds must come from an offense on the statutory list of “specified unlawful activities” — a long list that includes fraud, drug offenses, corruption, and many others. If the underlying conduct is not an SUA, there is no money laundering.

Knowledge. The defendant must have known the property represented the proceeds of some form of unlawful activity. The government need not prove the defendant knew the specific crime, but it must prove genuine knowledge of the property’s criminal character. This is frequently the central contested element — a person who handled money without that knowledge has not committed money laundering.

“Proceeds.” The transaction must involve criminal proceeds. Courts have wrestled with what “proceeds” means and how to handle commingled funds — clean money mixed with criminal money. The circuits are divided on commingled accounts: a minority, including the Fifth and Ninth Circuits, require the government to trace the charged dollars to the crime, while most others permit conviction without tracing once criminal funds entered the account. Which rule governs your district — and what the account history actually shows — can decide the count, and the issue remains unsettled enough to preserve for appeal.

The intent or design (§ 1956 only). Section 1956 requires the promotional intent, the concealment design, or the reporting-evasion design. Section 1957 does not — but for a § 1956 charge, this element is often where the case is genuinely contestable.

Applied Insight: The “proceeds” and tracing questions reward forensic work. When criminal and legitimate funds have been commingled in an account, the government’s claim that a particular transaction moved “proceeds” is an argument, not a fact. Reconstructing the account history can show that the transacted dollars were clean — or that the government cannot prove otherwise.

Santos, Proceeds, and the Merger Problem

For two decades the statutes never defined “proceeds,” and the gap finally split the Supreme Court. In United States v. Santos, 553 U.S. 507 (2008), a plurality read “proceeds” to mean profits, not gross receipts, in an illegal-gambling prosecution — because reading it to mean receipts would create what Justice Scalia called a merger problem: nearly every act of running the underlying crime (paying the lottery’s winners and runners) would automatically become a second crime, promotional money laundering, carrying a 20-year ceiling on top of the predicate’s much lower one.

Congress answered in 2009. The Fraud Enforcement and Recovery Act added 18 U.S.C. § 1956(c)(9), which defines “proceeds” as gross receipts — property obtained or retained through the unlawful activity, “not limited to the net gain or profit.” That definition governs prosecutions for conduct after May 2009, and it took the core of Santos off the table.

But the merger concern Santos crystallized did not disappear; it migrated into other doctrines. Courts remain wary of promotional-laundering counts that punish nothing more than the essential financial transactions of the underlying offense — paying the predicate crime’s own expenses — and several circuits scrutinize indictments in which the “laundering” is simply the predicate offense completing itself. Where the laundering count and the underlying count describe the same dollars doing the same work, we raise merger at the motion stage, in the jury instructions, and at sentencing.

Cuellar and the Limits of Concealment

The concealment prong has a Supreme Court limit of its own. In Cuellar v. United States, 553 U.S. 550 (2008), the defendant was caught driving toward Mexico with $81,000 in drug cash hidden in a secret compartment. The government argued that the hiding itself proved concealment laundering. A unanimous Court disagreed: the statute requires that the transaction or transportation be designed to conceal the nature, location, source, ownership, or control of the proceeds — not merely that the money was concealed while it moved.

The distinction is between how money is moved and why it is moved. Secretive handling — cash in a hidden compartment, odd packaging, quiet timing — may show how, but the government must prove the purpose of the movement was to disguise the money’s attributes. Carrying proceeds, even furtively, is not laundering them.

Cuellar does daily work in defense practice. Prosecutors routinely treat any secretive financial behavior as a concealment design; Cuellar says secrecy about the money is not the same as a design to disguise its source or ownership. Wire transfers between a defendant’s own accounts, deposits into accounts bearing the defendant’s own name, and ordinary purchases with proceeds all resist a concealment theory for the same reason.

Knowledge and Willful Blindness

Both statutes hinge on knowledge that the property was criminally derived, and when actual-knowledge proof is thin, the government often requests a willful-blindness (or “deliberate ignorance”) instruction. The controlling formulation comes from the Supreme Court’s decision in Global-Tech Appliances, Inc. v. SEB S.A., 563 U.S. 754 (2011) — a civil patent case that expressly distilled the doctrine from criminal law. Willful blindness requires two things: the defendant must subjectively believe there is a high probability that a fact exists, and the defendant must take deliberate actions to avoid learning that fact.

That formulation is a defense tool as much as a prosecution tool. The Court was explicit that willful blindness “surpasses recklessness and negligence”: a person who merely should have asked more questions, or who proceeded despite a known risk, is not willfully blind. In money laundering cases — where bankers, family members, business partners, and professionals frequently handle funds whose provenance they never investigated — the line between negligent incuriosity and deliberate avoidance is often the whole case. We object to deliberate-ignorance instructions where the evidence shows at most carelessness, and we hold the government to the two-part showing when the instruction is given.

Penalties and Forfeiture

The penalties are severe. Section 1956 carries up to 20 years in federal prison per count and a fine of up to $500,000 or twice the value of the property involved, whichever is greater. Section 1957 carries up to 10 years per count and substantial fines. Because each transaction can be charged as a separate count, a case involving many transfers can carry extraordinary aggregate exposure.

Forfeiture is central to money laundering enforcement. The government routinely seeks forfeiture of the property involved in the laundering transactions, and often moves early — sometimes before trial — to freeze or seize assets. That can leave a defendant unable to meet ordinary expenses or to fund a defense, which makes contesting the seizure of untainted assets an early priority.

In federal court, the advisory United States Sentencing Guidelines drive the actual sentence. The value of the laundered funds, the nature of the underlying offense, the defendant’s role, and the use of sophisticated means all influence the range. A disciplined challenge to the government’s valuation and to the applicable enhancements is an essential part of any sentencing defense.

Sentencing Under USSG §2S1.1

Money laundering sentences are calculated under USSG §2S1.1, and its structure rewards careful advocacy. For a defendant who committed the underlying offense — the “direct launderer” — the base offense level is simply the level for that underlying offense, with the laundering count then adding enhancements. For a third-party launderer who did not commit the predicate, the base level is 8 plus the §2B1.1 value table for the laundered funds, which makes the government’s valuation of those funds the central battleground.

The enhancements then stack: 1 level for a § 1957 conviction or 2 levels for a § 1956 conviction; 4 levels for being “in the business of laundering funds”; 6 levels where a third-party launderer knew the funds were drug proceeds or tied to violence, firearms, or the exploitation of minors; and 2 more for “sophisticated laundering” layered on a § 1956 conviction. Each has defined criteria and application notes worth litigating — “sophisticated” has an actual meaning, and routine use of a bank account is not it. Because the laundered-funds value, not just the predicate’s loss, can drive the range, defense forensic accounting often pays for itself at sentencing even when conviction is not seriously in doubt.

Defenses to Money Laundering Charges

No two money laundering cases are alike, and no lawyer can promise a result. But several defense themes recur, and matching them to the evidence is the core of building a strategy:

• Lack of knowledge. The defendant did not know the property represented the proceeds of unlawful activity.
• No promotional or concealment design. For a § 1956 charge, the transaction was ordinary spending or transfer, not an effort to promote crime or to disguise the proceeds.
• The funds were not “proceeds.” The transacted money was legitimate, or cannot be traced to a specified unlawful activity.
• Commingling. Criminal and clean funds were mixed, and the government cannot show the transacted dollars were proceeds.
• No specified unlawful activity. The underlying conduct does not qualify as an SUA predicate.
• Merger. The laundering count punishes the essential transactions of the underlying offense itself — the concern Santos identified.
• Concealment-in-transit only. Under Cuellar, hiding money while moving it is not a design to conceal its nature, source, or ownership.
• No willful blindness. The evidence shows at most carelessness — not a subjective belief in a high probability plus deliberate avoidance.
• Below the § 1957 threshold. The transaction did not exceed $10,000, or did not run through a financial institution.
• Innocent handling. The defendant provided ordinary banking, accounting, or family financial assistance without criminal knowledge.
• Forfeiture and sentencing challenges. The government’s valuation and the scope of forfeiture can be contested.

The right combination depends entirely on the facts and the financial record. Our role is to test the government’s proof element by element, develop the favorable record, and press every legitimate defense — during the investigation, in pretrial motions, at trial, and on appeal.

How Money Laundering Investigations Begin

Money laundering investigations frequently grow out of the investigation of an underlying offense, as agents “follow the money” from a fraud, drug, or corruption case into the financial transactions that followed. They also begin from bank Suspicious Activity Reports and Currency Transaction Reports, from whistleblowers, and from cooperating witnesses.

The early steps matter. Preserve all records, do not discuss the matter with anyone who may be a witness, decline to give an unprepared interview, and consult an experienced money laundering lawyer before saying anything substantive. Because these cases turn on knowledge and intent — and because asset freezes can come early — prompt counsel involvement is especially important.

Why Work With Elizabeth Franklin-Best, P.C.

A §§ 1956/1957 indictment is really three fights at once: the elements fight (proceeds, knowledge, design), the money fight (tracing, commingling, valuation), and the forfeiture fight (what the government may freeze, and when). Defending one without the others leaves value on the table — so we staff all three from the outset, with forensic accounting where the records justify it.

Our principal attorney, Elizabeth Franklin-Best, has appeared in more than 330 federal matters over her career, including over 100 federal appeals, and is admitted to the U.S. Supreme Court and all twelve federal circuit courts of appeals, appearing pro hac vice in district courts from coast to coast. She wrote Reversing Your Criminal Conviction, holds a 2026 Best Lawyers in America listing in Appellate Practice, and carries a Chambers USA 2026 ranking for Litigation: White-Collar Crime & Government Investigations — the appellate and post-conviction depth that lets us preserve the proceeds, tracing, and merger questions a laundering trial generates and carry them up if a conviction follows. Christopher Zoukis, our Managing Director, builds the sentencing and Bureau of Prisons side of the case while the litigation is still live. Business owners, professionals, family members swept into someone else’s scheme — we have defended them all across the life cycle of a laundering prosecution.

Guarantees have no place in honest criminal defense, and you will not get them here. You will get the case the record supports: every count matched against its elements, every dollar the government calls “proceeds” made to earn the label, and forfeiture resisted from the first freeze order. The work starts at a paid, one-hour initial consultation.

Talk With a Money Laundering Defense Lawyer

Between the 20-year ceiling, count-stacking, and pretrial asset freezes, a laundering case threatens both your liberty and your ability to fund your own defense — which is why timing matters more here than in almost any other federal charge. Book a paid, one-hour initial consultation now, before the government’s tracing narrative becomes the only one in the room.