National debt of the United States
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.
The US Department of the Treasury publishes a daily total of the national debt, which as of 2025 is $38 trillion. Treasury reports: "The Debt to the Penny dataset provides information about the total outstanding public debt and is reported each day. Debt to the Penny is made up of intragovernmental holdings and debt held by the public, including securities issued by the U.S. Treasury. Total public debt outstanding is composed of Treasury Bills, Notes, Bonds, Treasury Inflation-Protected Securities, Floating Rate Notes, and Federal Financing Bank securities, as well as Domestic Series, Foreign Series, State and Local Government Series, U.S. Savings Securities, and Government Account Series securities."
Related terms such as "national deficit" and "national surplus" 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 or by issuing less new debt than old debt it redeems at maturity. 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.
There are two components of gross national debt:
- "Debt held by the public" – such as Treasury securities held by investors outside the federal government, including those held by individuals, corporations, the Federal Reserve, and foreign, state and local governments.
- "Debt held by government accounts" or "intragovernmental debt" – is non-marketable Treasury securities held in accounts of programs administered by the federal government, such as the Social Security Trust Fund. Debt held by government accounts represents the cumulative surpluses, including interest earnings, of various government programs that have been invested in Treasury securities.
The ratio of debt to GDP may decrease as a result of a government surplus or via growth of GDP and inflation. The CBO estimated in February 2024 that Federal debt held by the public is projected to rise from 99 percent of GDP in 2024 to 116 percent in 2034, and would continue to grow if current laws generally remained unchanged. Over that period, the growth of interest costs and mandatory spending outpaces the growth of revenues and the economy, driving up debt. If those factors persist beyond 2034, pushing federal debt higher still, to 172 percent of GDP in 2054.
The United States has the largest external debt in the world. The total amount of U.S. Treasury securities held by foreign entities in December 2021 was $7.7 trillion, up from $7.1 trillion in December 2020. Total US federal government debt breached the $30 trillion mark for the first time in history in February 2022. In December 2023, total federal debt was $33.1 trillion; $26.5 trillion held by the public and $12.1 trillion in intragovernmental debt. The annualized cost of servicing this debt was $726 billion in July 2023, which accounted for 14% of the total federal spending. Additionally, in recent decades, aging demographics and rising healthcare costs have led to concern about the long-term sustainability of the federal government's fiscal policies. In February 2024, the total federal government debt rose to $34.4 trillion, after increasing by approximately $1 trillion during each of two separate 100-day periods since the previous June. In 2024, federal interest payments on the national debt surpassed spending on both Medicare and national defense.
On October 23, 2025, the National debt reached $38 trillion, a new high. The milestone was achieved amidst a Federal government shutdown, which by then had been going on for 23 days. The shutdown caused delays in economic activity and the postponement of financial decisions, pushing the number even further up. An increase of $1 trillion, from $37 to $38 trillion, was recorded between Aug 12 and Oct 23 of the same year, a time interval of merely 71 days. In addition, more than $382 billion of debt were added in the first 23 days of the government shutdown alone, according to the Joint Economic Committee, translating to an average rate of increase of $192,200 per second.
File:Federal Government deficits.webp|thumb|Monthly deficits or surplus
History
The United States federal government has continuously had a fluctuating public debt since its formation in 1789, except for about a year during 1835–1836, a period in which the nation, during the presidency of Andrew Jackson, completely paid the national debt. To allow comparisons over the years, public debt is often expressed as a ratio to GDP. The United States public debt as a percentage of GDP reached its highest level during Harry Truman's first presidential term, during and after World War II. Public debt as a percentage of GDP fell rapidly in the post-World War II period and reached a low in 1974 under Richard Nixon. Debt as a share of GDP has consistently increased since then, except during the presidencies of Jimmy Carter and Bill Clinton.Public debt rose sharply during the 1980s, as Ronald Reagan negotiated with Congress to cut tax rates and increase military spending. It fell during the 1990s because of decreased military spending, increased taxes and the 1990s boom. Public debt rose sharply during Presidency of George W. Bush and after the 2008 financial crisis, with resulting significant tax revenue declines and spending increases, such as the Emergency Economic Stabilization Act of 2008 and the American Recovery and Reinvestment Act of 2009.
In their September 2018 monthly report published on October 5 and based on data from the Treasury Department's "Daily Treasury Statements", the Congressional Budget Office wrote that the federal budget deficit was c.$782 billion for the fiscal year 2018—which runs from October 2017 through September 2018. This is $116 billion more than in FY2017. The Treasury statements as summarized by in the CBO report that corporate taxes for 2017 and 2018 declined by $92 billion representing a drop of 31%. The CBO added that "about half of the decline... occurred since June" when some of the provisions of the Tax Cuts and Jobs Act of 2017 took effect, which included the "new lower corporate tax rate and the expanded ability to immediately deduct the full value of equipment purchases".
According to articles in The Wall Street Journal and Business Insider, based on documents released on October 29, 2018, by the Treasury Department, the department's projection estimated that by the fourth quarter of the FY2018, it would have issued c. $1.338 trillion in debt. This would have been the highest debt issuance since 2010, when it reached $1.586 trillion. The Treasury anticipated that the total "net marketable debt"—net marketable securities—issued in the fourth quarter would reach $425 billion; which would raise the 2018 "total debt issuance" to over a trillion dollars of new debt, representing a "146% jump from 2017". According to the Journal that is the highest fourth quarter issuance "since 2008, at the height of the financial crisis." As cited by the Journal and the Business Insider, the primary drivers of new debt issuance are "stagnant", "sluggish tax revenues", a decrease in "corporate tax revenue", due to the GOP Tax Cuts and Jobs Act of 2017, the "bipartisan budget agreement", and "higher government spending". Due to the Coronavirus epidemic, the national debt rose to levels that exceeded what had been seen during World War Two, meaning that the U.S. had officially grown its debt amount to never before seen numbers.
Valuation and measurements
Public and government accounts
As of March 6, 2025, debt held by the public was $29 trillion, and intragovernmental holdings were $7.4 trillion, for a total of $36.4 trillion. Debt held by the public was approximately 77% of GDP in 2017, ranked 43rd highest out of 207 countries. The CBO forecast in April 2018 that the ratio will rise to nearly 100% by 2028, perhaps higher if current policies are extended beyond their scheduled expiration date.The national debt can also be classified into marketable or non-marketable securities. Most of the marketable securities are Treasury notes, bills, and bonds held by investors and governments globally. The non-marketable securities are mainly the "government account series" owed to certain government trust funds such as the Social Security Trust Fund, which represented $2.82 trillion in 2017.
The non-marketable securities represent amounts owed to program beneficiaries. For example, the cash is received but spent for other purposes. If the government continues to run deficits in other parts of the budget, the government will have to issue debt held by the public to fund the Social Security Trust Fund, in effect exchanging one type of debt for the other. Other large intragovernmental holders include the Federal Housing Administration, the Federal Savings and Loan Corporation's Resolution Fund and the Federal Hospital Insurance Trust Fund.