#USNationalDebt

The "national debt of the United States" is the total national debt owed by the federal government of the United States to treasury security holders. The national debt at a given point in time is the face value of the then outstanding treasury securities that have been issued by the Treasury and other federal agencies.

Related terms such as "national deficit" and "national surplus" most often refer to the federal government budget balance from year to year and not the cumulative amount of debt held. In a deficit year, the national debt increases as the government needs to borrow funds to finance the deficit. In a surplus year, the debt decreases as more money is received than spent, enabling the government to reduce the debt by buying back Treasury securities. Broadly, US government debt increases as a result of government spending and decreases from tax or other funding receipts, both of which fluctuate during a fiscal year.The aggregate, gross amount that Treasury can borrow is limited by the United States debt ceiling.