A Federal Reserve Note is a type of banknote used in the United States of America. Federal Reserve Notes are printed by the United States Bureau of Engraving and Printing on paper made by Crane & Co. of Dalton, Massachusetts. They are the only type of U.S. banknote produced as of 2012^[update]. They are distinct from Federal Reserve Bank Notes, each of which was issued (until 1971) and backed by one, rather than all collectively, of the twelve Federal Reserve Banks.

Federal Reserve Notes are authorized by Section 411 of Title 12 of the United States Code and are issued to the Federal Reserve Banks at the discretion of the Board of Governors of the Federal Reserve System. The notes are then put into circulation by the Federal Reserve Banks, at which point they become liabilities of the Federal Reserve Banks and obligations of the United States.

Federal Reserve Notes are legal tender, with the words "this note is legal tender for all debts, public and private" printed on each note. (See generally 31 U.S.C. § 5103.) They have replaced United States Notes, which were once issued by the Treasury Department. Federal Reserve Notes are backed by the assets of the Federal Reserve Banks, which serve as collateral under Federal Reserve Act Section 16. These assets are generally Treasuries which have been purchased by the Federal Reserve through its Federal Open Market Committee in a process called monetizing the debt. (See Monetization.) This monetized debt can increase the money supply, either with the issuance of new Federal Reserve Notes or with the creation of debt money (deposits). This increase in the monetary base leads to larger increase in the money supply through the fractional-reserve banking as deposits are lent and re-deposited where they form the basis of further loans.

The Federal Reserve System (also known as the Federal Reserve, and informally as the Fed) is the central banking system of the United States. It was created on December 23, 1913 with the enactment of the Federal Reserve Act, largely in response to a series of financial panics, particularly a severe panic in 1907. Over time, the roles and responsibilities of the Federal Reserve System have expanded and its structure has evolved. Events such as the Great Depression were major factors leading to changes in the system.

The Congress established three key objectives for monetary policy—maximum employment, stable prices, and moderate long-term interest rates—in the Federal Reserve Act. The first two objectives are sometimes referred to as the Federal Reserve's dual mandate. Its duties have expanded over the years, and today, according to official Federal Reserve documentation, include conducting the nation's monetary policy, supervising and regulating banking institutions, maintaining the stability of the financial system and providing financial services to depository institutions, the U.S. government, and foreign official institutions. The Fed also conducts research into the economy and releases numerous publications, such as the Beige Book.