Terrorist Financing Laws, Sanctions, and Criminal Penalties

U.S. terrorist financing laws run on two tracks. Three federal criminal statutes — 18 U.S.C. 2339A, 2339B, and 2339C — make it a felony to fund, support, or collect money for terrorism, with maximum sentences ranging from 15 years to life. A parallel compliance regime built on the Bank Secrecy Act, the USA PATRIOT Act, and Treasury sanctions programs forces banks and other financial institutions to identify customers, freeze designated assets, and report suspicious transactions. Together these laws target both the people moving the money and the institutions that touch it.

The Three Material Support Statutes

Federal prosecutors bring most terrorist financing cases under one of three statutes. Each covers a different piece of the funding chain.

18 U.S.C. 2339A criminalizes providing material support or resources knowing or intending they will be used to carry out specific violent federal offenses, such as bombings, assassinations, or attacks on aircraft. The term “material support or resources” is defined broadly to include currency, financial securities, financial services, lodging, training, expert advice, safehouses, false identification, communications equipment, weapons, explosives, personnel, and transportation.¹ The maximum sentence is 15 years, or life if anyone dies as a result of the support.

18 U.S.C. 2339B reaches further. It makes it a crime to knowingly provide material support to any group the Secretary of State has designated as a foreign terrorist organization, whether or not the support is tied to a specific attack. The defendant only needs to know that the organization has been designated or that it engages in terrorist activity. The maximum is 20 years, rising to life if a death results.²

18 U.S.C. 2339C targets the money directly. It prohibits unlawfully and willfully providing or collecting funds with the intent or knowledge that they will be used to carry out an act of terrorism against civilians, or an act covered by certain international treaties. The funds do not have to reach their intended destination for the offense to be complete. The maximum sentence is 20 years, with a separate 10-year maximum for concealing the nature or source of terrorist funds.³

How a Group Becomes a Foreign Terrorist Organization

Because 2339B hinges on the designation, the mechanics of the FTO list matter. The Secretary of State, in consultation with the Secretary of the Treasury and the Attorney General, designates foreign terrorist organizations under 8 U.S.C. 1189. An organization qualifies when three things are true: it is foreign, it engages in terrorist activity or retains the capability and intent to do so, and its activity threatens U.S. nationals or U.S. national security.⁴

The State Department must give classified notice to congressional leadership at least seven days before publication. The designation then appears in the Federal Register, and from that moment anyone within U.S. jurisdiction who provides material support to the group is exposed to prosecution under 2339B. Financial institutions holding funds in which a designated organization has an interest must freeze those funds and report them to Treasury.²

What the Bank Secrecy Act and USA PATRIOT Act Require

The compliance side of the framework starts with the Bank Secrecy Act of 1970. The BSA requires financial institutions to keep records of cash purchases of negotiable instruments, file currency transaction reports for transactions exceeding $10,000 in a single day, and report suspicious activity that could signal criminal conduct, including terrorist financing.⁵ Every covered institution must also build and maintain an anti-money-laundering program designed to prevent exploitation for money laundering or terrorist financing.⁶

The USA PATRIOT Act, passed weeks after September 11, 2001, expanded these powers. It authorized special scrutiny of foreign jurisdictions, foreign financial institutions, and classes of international transactions susceptible to criminal abuse. Section 326 imposed minimum standards for customer identification programs, requiring banks and credit unions to verify every customer’s identity before opening an account.⁷ Anonymous access to the U.S. banking system is, at least on paper, no longer possible.

OFAC Sanctions and Blocked Property

Treasury’s Office of Foreign Assets Control runs the sanctions side. OFAC maintains the Specially Designated Nationals and Blocked Persons List, known as the SDN List. Executive Order 13224, issued in September 2001, authorizes OFAC to block all property and interests in property of individuals and entities associated with terrorism when those assets are in the United States or in the control of U.S. persons.⁸

Once someone is added to the SDN List, OFAC notifies U.S. financial institutions and directs them to block the designated person’s assets. Any transaction or dealing by a U.S. person with the blocked property is prohibited after that point, including making or receiving any contribution of funds, goods, or services to or for the benefit of the designated person. Transactions designed to evade the prohibitions are separately barred, and conspiracies to violate the order carry their own penalties.

Suspicious Activity Reporting

Suspicious activity reports are the day-to-day backbone of the detection system. When a bank, credit union, or casino spots a suspicious transaction of $5,000 or more, it must file a SAR. For money services businesses, the threshold is $2,000.⁶ The institution has 30 days from the date it detects facts that may warrant a filing to submit the initial report.⁹ Filings go through the BSA E-Filing System on FinCEN Form 111.¹⁰ If the suspicious activity continues, follow-up SARs should be filed at least every 90 days.

Safe Harbor for Filers

Institutions reporting a customer are protected from suit. Under 31 U.S.C. 5318(g)(3), any financial institution that discloses a possible violation of law to a government agency, whether required by regulation or done voluntarily, is shielded from liability under any federal or state law, regulation, or contract, including arbitration agreements. The protection extends to directors, officers, employees, and agents who make or require the disclosure.¹¹ The institution has no duty to tell the customer a report was filed.

The Tipping-Off Prohibition

The flip side is strict confidentiality. Under 31 U.S.C. 5318(g)(2), no one at the institution, current or former, may notify any person involved in the transaction that a SAR has been filed, or reveal information that would disclose the filing. The same prohibition binds government employees who learn of the report.¹¹ Tipping off a suspect lets them move funds or destroy evidence, and the statute treats the breach accordingly.

Section 314(b) Information Sharing

The PATRIOT Act also created a voluntary channel for institutions to share information with each other. Under Section 314(b), institutions that notify Treasury can legally exchange customer and transaction data for the purpose of identifying and reporting suspected money laundering or terrorist activity. Participants register through a certification process on the FinCEN website.¹² The statutory authorization is what makes the exchange lawful despite ordinary privacy constraints.

Penalties

Prison and Fines for Individuals

The maximum sentence under 18 U.S.C. 2339A is 15 years, or life if a death results.¹ Under 2339B, the maximum is 20 years, or life if a death results.² Under 2339C, the maximum is also 20 years, with a separate 10-year maximum for concealing the funds.³ Each statute also authorizes criminal fines. Under 18 U.S.C. 3571, an individual convicted of a felony faces fines up to $250,000, and an organization up to $500,000.¹³

Civil Penalties for Financial Institutions

A financial institution that knowingly fails to freeze and report funds belonging to a designated foreign terrorist organization faces a civil penalty under 2339B equal to the greater of $50,000 per violation or twice the amount the institution was required to retain.²

Separate penalties attach to BSA compliance failures such as not filing SARs or not maintaining an adequate anti-money-laundering program. A willful violation can bring a civil penalty of up to the greater of $25,000 or the amount of the transaction, capped at $100,000. A pattern of negligent violations can reach $50,000. Violations of international counter-money-laundering provisions carry penalties up to twice the transaction amount, with a $1,000,000 ceiling.¹⁴

Asset Forfeiture

The government also uses civil and criminal asset forfeiture to strip resources from terrorist financing networks. Bank accounts, real estate, vehicles, and other property used in or derived from these offenses can be seized. Forfeiture actions often run alongside criminal prosecutions, and the government can seize assets through civil forfeiture even without a criminal conviction.

The International Layer

Terrorist financing rarely stops at one country’s border, and the U.S. compliance framework sits inside a global one. The Financial Action Task Force is an international policy-making body that monitors member countries’ progress in implementing counter-financing measures, reviews emerging techniques, and promotes adoption of effective standards.¹⁵ Countries that fail to meet FATF standards can be placed on a public grey list that restricts their access to international banking. For U.S. institutions, FATF membership means the obligations they live under are shared, in substance, by most major economies.

1
Office of the Law Revision Counsel. 18 USC 2339A – Providing Material Support to Terrorists
2
Office of the Law Revision Counsel. 18 USC 2339B – Providing Material Support or Resources to Designated Foreign Terrorist Organizations
3
Office of the Law Revision Counsel. 18 USC 2339C – Prohibitions Against the Financing of Terrorism
4
Office of the Law Revision Counsel. 8 USC 1189 – Designation of Foreign Terrorist Organizations
5
FinCEN. The Bank Secrecy Act
6
Internal Revenue Service. Bank Secrecy Act
7
FinCEN. USA PATRIOT Act
8
U.S. Department of State. Executive Order 13224
9
FinCEN. Frequently Asked Questions Regarding the FinCEN Suspicious Activity Report (SAR)
10
FinCEN. Bank Secrecy Act Filing Information – Section: FinCEN SAR Form 111
11
Office of the Law Revision Counsel. 31 USC 5318 – Compliance, Exemptions, and Summons Authority
12
FinCEN. Section 314(b)
13
Office of the Law Revision Counsel. 18 USC 3571 – Sentence of Fine
14
Office of the Law Revision Counsel. 31 USC 5321 – Civil Penalties
15
U.S. Department of the Treasury. Financial Action Task Force