The Office of Foreign Assets Control (OFAC) is a financial intelligence and enforcement agency of the U.S. Department of the Treasury. It is an institution responsible for administering and enforcing economic and trade sanctions to support U.S. foreign policy and national security objectives.
OFAC's origins trace back to World War II with the establishment of the Office of Foreign Funds Control (FFC) in 1940, following the German invasion of Norway. The FFC's initial purpose was to prevent the Nazis from using the foreign exchange and securities holdings of occupied countries. The FFC was succeeded by the Division of Foreign Assets Control, which was formally created in December 1950 after President Harry S. Truman declared a national emergency and blocked Chinese and North Korean assets following China's entry into the Korean War. This solved the problem of using economic tools to counter foreign threats without resorting to military force.
OFAC works by imposing sanctions that can be comprehensive, targeting an entire country, or selective, targeting specific individuals, groups, or entities like terrorists or narcotics traffickers. Its authority is primarily derived from U.S. federal laws, notably the International Emergency Economic Powers Act (IEEPA) and the Trading with the Enemy Act (TWEA), which grant the President power to regulate commerce and freeze assets during a national emergency. A key mechanism is the Specially Designated Nationals and Blocked Persons List (SDN List), which names individuals and companies whose assets are blocked and with whom U.S. persons are generally prohibited from dealing. OFAC can also issue General Licenses to authorize certain transactions that would otherwise be prohibited.
OFAC connects to other U.S. institutions like the Financial Crimes Enforcement Network (FinCEN), with which it jointly issues guidance and proposed rules, such as the recent Stablecoin Rule to implement elements of the GENIUS Act. Internationally, its model is often mirrored, with the UK's Office of Financial Sanctions Implementation (OFSI) being a comparable body.
Recently, OFAC has issued a sanctions advisory on March 31, 2026, titled Guidance on Sham Transactions and Sanctions Evasion, signaling that companies must look beyond the formal 50 Percent Rule ownership analysis to identify sanctioned persons. Additionally, OFAC launched a new online Voluntary Self-Disclosure (VSD) Portal in March 2026 to streamline the reporting of potential sanctions violations, which can reduce penalties by up to 50%. The core function of administering and enforcing sanctions remains the same, but the focus on compliance diligence and reporting mechanisms has been amended.