Americans own the majority of U.S. debt. Domestic holders — the Federal Reserve, U.S. banks, mutual funds, pension plans, individual investors, and federal trust funds — together hold roughly two-thirds of the roughly $38.8 trillion in federal debt outstanding as of February 2026.1U.S. Treasury Fiscal Data. Debt to the Penny Foreign governments and international investors hold the rest, about $9.3 trillion, which works out to less than a quarter of the total.2Treasury International Capital. Major Foreign Holders of Treasury Securities
How the Debt Is Divided
Federal debt sits in two buckets. About 80 percent, roughly $31.1 trillion, is debt held by the public: every dollar the Treasury has borrowed from someone other than itself, including U.S. individuals, U.S. institutions, the Federal Reserve, and foreign investors. The other 20 percent, about $7.7 trillion, is intragovernmental holdings — money the federal government owes to its own trust funds.1U.S. Treasury Fiscal Data. Debt to the Penny
Both buckets count as debt the government has to pay back. Neither the trust funds nor foreign creditors are close to being the largest single owner.
Domestic Holders: The Largest Share
The Federal Reserve
The Federal Reserve is the biggest single holder of publicly traded Treasury debt. As of late February 2026, the Fed held roughly $4.3 trillion in Treasury securities.3FRED – Federal Reserve Economic Data. U.S. Treasury Securities Held by the Federal Reserve – All – Wednesday Level The Fed buys and sells Treasuries as its main tool for managing interest rates and the money supply. When it buys, cash flows into the banking system; when it lets securities mature without replacing them, cash is pulled back out.
That second process has been running since mid-2022, when the Fed began shrinking the large portfolio it built during the pandemic. Its holdings relative to the size of the economy fell by about 14 percentage points between March 2022 and December 2025.4The Fed. A Decomposition of Balance Sheet Reduction
U.S. Institutions
Mutual funds and private pension funds together hold hundreds of billions of dollars in Treasuries, using them as a stable base for retirement portfolios. Commercial banks buy them to meet regulatory liquidity requirements and to protect depositor funds. Insurance companies favor longer-term Treasury bonds because the payout schedule matches the claims they expect to pay decades out. For all of these institutions, Treasuries are attractive because they carry virtually no credit risk.
Individual Investors
Individuals can buy Treasury securities directly from the government through TreasuryDirect, with electronic savings bonds starting at $25.5TreasuryDirect. Manage Bonds – TreasuryDirect Annual purchase limits apply. Each person can buy up to $10,000 in electronic Series I savings bonds per calendar year, for example.6TreasuryDirect. How Much Can I Spend/Own? Retail ownership provides a steady stream of domestic capital that is less sensitive to global market swings.
Foreign Holders
Foreign governments, central banks, and international investors hold about $9.3 trillion in Treasury securities, based on Treasury International Capital data for December 2025.2Treasury International Capital. Major Foreign Holders of Treasury Securities That is a large sum in absolute terms, but it is still a minority share of the total debt.
The largest foreign holders are:
- Japan: about $1.19 trillion
- United Kingdom: about $866 billion
- China: about $684 billion
- Luxembourg: about $435 billion, largely reflecting international investment funds domiciled there
China’s position has declined notably over recent years as its central bank has diversified reserves into other assets.2Treasury International Capital. Major Foreign Holders of Treasury Securities
Foreign central banks hold Treasuries for their liquidity and safety. The U.S. Treasury market is the deepest and most active bond market in the world, so securities can be sold quickly when a central bank needs cash during a financial emergency. The backing of the U.S. government makes them among the safest assets available.7Federal Reserve Bank of New York. The Important Role of the Foreign Investor in the U.S. Treasury Market Strong foreign demand also helps keep U.S. borrowing costs lower than they would be if the government relied only on domestic buyers.
The Government Owes Itself About $7.7 Trillion
The other major domestic owner is the federal government itself. When programs like Social Security collect more in payroll taxes than they pay out, the surplus is invested in special-issue Treasury securities. The Treasury uses that cash for general operations and records an obligation to repay the trust funds later with interest. These internal securities do not trade on the open market, but they are binding commitments.
The Social Security trust funds are by far the largest holder in this category. At the end of 2024, the Old-Age and Survivors Insurance (OASI) trust fund held about $2.54 trillion and the Disability Insurance (DI) trust fund held roughly $183 billion, for a combined balance of about $2.72 trillion.8Social Security Administration. Trustees Report Summary Federal employee retirement funds managed by the Office of Personnel Management and the Military Retirement Fund make up much of the rest.
One boundary is worth flagging, because it’s a common source of confusion. Social Security is now paying out more than it collects, so its reserves are shrinking. The Congressional Budget Office projects the OASI trust fund will be exhausted by 2032 and the combined OASI and DI funds by 2033.9CBO.gov. Social Security Trust Funds Baseline Exhaustion does not mean benefits disappear. Ongoing payroll tax revenue would still cover roughly three-fourths of scheduled benefits without further legislative action.10Social Security Administration. Proposals to Change Social Security
Why the Ownership Mix Matters
Who owns the debt shapes what happens when it has to be serviced. Every dollar borrowed carries an interest cost, and those costs have grown into one of the largest items in the federal budget. The CBO projects net interest of roughly $1.04 trillion for fiscal year 2026, equal to about 3.3 percent of GDP.11Congressional Budget Office. The Budget and Economic Outlook: 2026 to 2036 Interest now accounts for roughly 14 percent of all federal spending.12U.S. Treasury Fiscal Data. Federal Spending
When domestic investors hold the debt, those interest payments circulate back through the U.S. economy. When foreign investors hold it, the payments flow abroad. Economists gauge sustainability by comparing the debt to the size of the economy. Debt held by the public is projected to equal 101 percent of GDP in 2026 and to reach 120 percent by 2036.11Congressional Budget Office. The Budget and Economic Outlook: 2026 to 2036 A rising ratio means the debt is growing faster than the economy’s ability to support it, which can push interest rates higher and squeeze other government spending over time.