US Debt to GDP Ratio
Federal debt measured against the size of the US economy — the standard gauge of the government's debt burden. The headline series here is gross federal debt as a percent of GDP (FRED series GFDEGDQ188S), computed from the U.S. Treasury's debt figures and the Bureau of Economic Analysis's GDP estimates, updated quarterly.
Latest reading
Debt-to-GDP since 1966
Source: FRED, series GFDEGDQ188S — full chart tools, observation table and CSV/JSON export on the series page.
What the ratio measures — and what it doesn't
The debt-to-GDP ratio divides the federal debt by nominal gross domestic product — the total value of goods and services the economy produces in a year. Because it scales the debt to the economy's capacity to carry it, the ratio is more informative than the raw dollar figure: a rising ratio means debt is growing faster than the economy, a falling ratio means the economy is outgrowing its debt. It is the standard yardstick used in fiscal-sustainability analysis and cross-country comparison.
What the ratio does not do is identify a bright line where debt becomes a crisis. There is no universally agreed threshold; what matters more is the trajectory, the interest cost of servicing the debt, and the credibility of a country's fiscal institutions. That is why the interest-expense-to-revenue ratio is often watched alongside debt-to-GDP as the more immediate budget pressure gauge.
Gross debt vs debt held by the public
Two versions of the ratio circulate, and they differ by roughly 20 percentage points. Gross federal debt — the series charted above — includes intragovernmental holdings, the Treasury securities held by federal trust funds like Social Security. Debt held by the public counts only what is owed to outside investors and is the measure most economists prefer for sustainability analysis, because it represents actual borrowing from the real economy.
The historical arc is the same on either measure. Debt held by the public peaked at about 106% of GDP in 1946 after World War II, fell below 25% by the early 1970s, stood near 35% in 2007, climbed past 70% by 2012 after the financial crisis, and crossed 100% again during the 2020 pandemic response — territory last seen in the late 1940s. The gross-debt ratio has been above 100% since 2013 and above 120% since 2020.
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Frequently asked questions
What is the current US debt-to-GDP ratio?
The most-cited measure — gross federal debt as a percent of GDP, FRED series GFDEGDQ188S — has been above 100% since 2013 and above 120% since the 2020 pandemic response. The exact latest quarterly reading is shown at the top of this page, sourced from FRED and updated as new quarters publish.
Is a debt-to-GDP ratio over 100% dangerous?
There is no universally agreed 'safe' threshold. Countries that borrow in their own currency with credible institutions have sustained much higher ratios, while some emerging markets have hit trouble at lower ones. Most economists focus on the trajectory — whether the ratio is stabilizing or rising — and on the interest cost of servicing the debt, rather than any single level.
Which debt measure does the ratio use — gross debt or debt held by the public?
Both versions are widely quoted. Gross federal debt includes intragovernmental holdings (Treasuries held by the Social Security and Medicare trust funds) and runs roughly 20 percentage points higher than debt held by the public, which counts only what is owed to outside investors. This page's headline series uses gross federal debt; always check which measure a given claim cites.
How often is the debt-to-GDP ratio updated?
Quarterly. The numerator (federal debt) is published daily by the U.S. Treasury, but the denominator (nominal GDP) is published quarterly by the Bureau of Economic Analysis, so the official ratio updates once per quarter, with revisions as GDP estimates are refined.
How we source and refresh this data: Methodology & data sources