The U.S. debt is the sum of all outstanding debt owed by the federal government. It s currently more than $20.1 trillion. Here s the current Debt to the Penny. The debt clock in New York also tracks it.
Two-thirds is debt held by the public. The government owes this to buyers of U.S. Treasury bills, notes and bonds. That includes individuals, companies and foreign governments.
The remaining third is intragovernmental debt.
The Treasury owes this to its various departments who hold Government Account securities. Social Security and other trust funds are the biggest owners. They have been running surpluses for years. The federal government uses these surpluses to pay for other departments. These securities will come due as baby boomers retire over the next two decades. For more, see Who Owns the U.S. Debt? (Source: Debt to the Penny, U.S. Treasury. Debt FAQ, U.S. Treasury.)
America s debt is the largest in the world for a single country. It runs neck and neck with that of the European Union, an economic union of 28 countries. For more, see Sovereign Debt Rankings.
The debt is greater than what America produces in a whole year. This high debt-to-GDP ratio tells investors that the country might have problems repaying the loans. That s a new and worrying occurrence for the United States. In 1988, the debt was only half of America s economic output.
There are three significant causes of the size of the national debt. First, the debt is an accumulation of Federal budget deficits. Each new program and tax cut adds to the debt. These show up in budget deficits by president. The largest deficit goes to President Obama.
President Bush had the second largest deficit. He also fought the financial crisis with the $700 billion bailouts. Bush added the EGTRRA and JGTRRA tax cuts to end the 2001 recession. He responded to the 9/11 attacks with the War on Terror.
President Reagan cut taxes, increased defense spending and expanded Medicare. All these presidents also suffered from lower tax receipts resulting from recessions. For more, see Dollar to Yuan Exchange Rate History.
Second, every president borrows from the Social Security Trust Fund. The Fund took in more revenue than it needed through payroll taxes leveraged on baby boomers. Ideally, this money should have been invested to be available when the boomers retire. Instead, the Fund was loaned to the government to finance increased spending. This interest-free loan helped keep Treasury Bond interest rates low, allowing more debt financing. But it must be repaid by increased taxes when the boomers do retire.
Third, countries like China and Japan buy Treasurys to keep their currencies low relative to the dollar.
They are happy to lend to America, their largest customer, so it will keep buying their exports. Even though China warns the United States to lower its debt, it continues to buy Treasuries. But China has lowered its holdings of U.S. debt in 2016.
Fourth, the Federal government benefits from low interest rates. It couldn t keep running budget deficits if interest rates skyrocketed like they did in Greece. Why have interest rates remained low? Purchasers of Treasury bills are confident that America has the economic power to pay them back. During the recession, foreign countries increased their holdings of Treasury Bonds as a safe haven investment. These holdings went from 13 percent in 1988 to 31 percent in 2011.
Fifth, Congress raises the debt ceiling. Congress sets a limit on the debt but usually increases it.
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That didn t happen between 2011 to 2013, though. That was because the debt crisis resulted in a government shutdown and budget sequestration. In 2015, Congress suspended the ceiling until after the 2016 Presidential elections. In 2017, it raised the debt ceiling until December 8, 2017.
In the short run, the economy and voters benefit from deficit spending. It drives economic growth. The federal government pays for defense equipment, health care and building construction. It contracts with private firms who then hire new employees. They spend their government-subsidized wages on gasoline, groceries and new clothes. That boosts the economy. The same effect occurs with the employees the federal government hires directly. To find out what else the government spends its money on, see Components of GDP.
Over the long term, a growing Federal debt is like driving with the emergency brake on. As the debt-to-GDP ratio increases, debt holders could demand larger interest payments. They want compensation for an increasing risk they won t be repaid. Diminished demand for U.S. Treasurys would further increase interest rates. That would slow the economy.
Lower demand for Treasurys also puts downward pressure on the dollar. That s because the dollar s value is tied to the value of Treasury Securities. As the dollar declines, foreign holders get paid back in currency that is worth less. That further decreases demand. Also, many foreign holders of U.S. debt are investing more in their own countries.
At that point, the United States will have to pay exorbitant amounts just for the interest. To find out current interest payments, see Federal Spending.