Glossary term
U.S. National Debt
The U.S. national debt is the total amount of outstanding federal debt owed by the Treasury.
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What Is the U.S. National Debt?
The U.S. national debt is the total amount of outstanding federal debt owed by the Treasury. Treasury Fiscal Data uses national debt, federal debt, and public debt as related terms for the government's accumulated borrowing.
The debt grows when the federal government runs deficits and borrows to cover the gap between spending and revenue. It can also change because of timing, trust fund activity, and how Treasury securities are issued and redeemed.
Key Takeaways
- The U.S. national debt is a stock measure of outstanding federal debt.
- It is different from the deficit, which measures borrowing over a period.
- Total debt includes debt held by the public and intragovernmental holdings.
- Debt burden is often evaluated relative to GDP, interest costs, and revenue.
- The headline number should be read with its composition and maturity profile.
How the Debt Is Reported
Treasury's Debt to the Penny dataset reports total public debt outstanding and separates it into debt held by the public and intragovernmental holdings. Debt held by the public is owed to investors outside the federal government, including individuals, institutions, foreign holders, state and local governments, and the Federal Reserve. Intragovernmental holdings are Treasury securities held by federal trust funds and other government accounts.
The national debt is not the same as annual federal spending. It is the accumulated result of past borrowing and repayment. A single year's deficit adds to the debt, while a surplus would reduce borrowing needs.
Debt Measures Compared
Measure | What it shows |
|---|---|
Total public debt outstanding | Debt held by the public plus intragovernmental holdings. |
Debt held by the public | Federal debt owed to investors outside federal government accounts. |
Intragovernmental holdings | Treasury debt held by federal trust funds and agency accounts. |
Budget deficit | Annual shortfall when spending exceeds revenue. |
Fiscal Context
The national debt matters because it affects interest costs, fiscal flexibility, Treasury issuance, and long-run budget debates. Higher interest rates can make a given debt level more expensive to service. Strong economic growth can make the debt easier to carry relative to GDP.
The debt is also a political number, so context matters. Analysts often focus on debt held by the public because it reflects borrowing from outside the federal government. Others look at total debt because it includes obligations to federal trust funds.
The Bottom Line
The U.S. national debt is the federal government's accumulated outstanding debt. The headline number is useful, but the better read comes from separating public debt, intragovernmental holdings, interest costs, deficits, and the size of the economy.