Who is buying U.S. debt? Domestic investors and federal government accounts hold roughly 77% of the nearly $38.9 trillion in outstanding federal obligations, and foreign governments and overseas investors hold the remaining 23%. The buyer pool runs from the Social Security Trust Fund and the Federal Reserve to Japanese pension managers, American mutual funds, and individual savers purchasing bonds through TreasuryDirect.1U.S. Treasury Fiscal Data. Understanding the National Debt
Two Buckets of Debt
Federal debt splits into two categories, and the distinction matters for understanding who the buyers actually are.
Debt held by the public covers every Treasury security owned by someone outside the federal government itself: foreign central banks, domestic mutual funds, the Federal Reserve, commercial banks, and individual investors. As of early March 2026, that figure stood at approximately $31.3 trillion. Intragovernmental holdings, the second bucket, represent money the government owes to its own trust funds and agency accounts, totaling about $7.6 trillion.2U.S. Treasury Fiscal Data. Debt to the Penny Add them together and you reach the roughly $38.9 trillion in total outstanding public debt.
The government raises this money by selling marketable securities at auction. Treasury bills mature in 4 to 52 weeks.3TreasuryDirect. Treasury Bills Treasury notes carry terms of 2, 3, 5, 7, or 10 years.4TreasuryDirect. Treasury Notes Treasury bonds run longer, most commonly 30 years. Each security is a formal promise to repay principal plus interest, backed by the full faith and credit of the government.5Office of the Law Revision Counsel. 31 U.S. Code 3102 – Bonds
Foreign Governments and Overseas Investors
Foreign governments, central banks, and overseas private investors collectively hold trillions in Treasury securities. The Treasury Department tracks these positions through the Treasury International Capital reporting system, which collects monthly data on cross-border holdings.6U.S. Department of the Treasury. Description of the Treasury International Capital (TIC) System
Japan is the largest foreign holder by a wide margin. As of December 2025, Japanese investors held roughly $1.19 trillion in U.S. Treasuries. The United Kingdom ranked second at $866 billion, having overtaken China in recent years. China held approximately $684 billion, continuing a gradual decline from its peak holdings.7Treasury International Capital. Table 5 – Major Foreign Holders of Treasury Securities Rankings shift regularly as countries adjust reserve strategies, manage exchange rates, and respond to trade dynamics.
One caveat about those country totals: the TIC data is collected primarily from U.S.-based custodians, so securities held in overseas custody accounts may be attributed to the financial center where the custodian sits rather than to the real owner. That custodial bias inflates the recorded holdings of major financial hubs like the United Kingdom, Luxembourg, and Caribbean banking centers.8U.S. Department of the Treasury. Frequently Asked Questions Regarding the TIC System and TIC Data – Page 2 The real ownership picture is blurrier than the headline numbers suggest.
Why do foreign buyers keep showing up at auctions? Central banks buy Treasuries primarily to manage their own currency values and maintain liquid reserves. Private foreign investors participate because Treasury securities offer predictable interest payments from a borrower that has never defaulted. That combination of safety and liquidity sustains global demand even when yields are relatively low.
The Federal Reserve
The Federal Reserve is one of the single largest holders of U.S. debt. As of early March 2026, the Fed held approximately $4.3 trillion in Treasury securities on its balance sheet.9Board of Governors of the Federal Reserve System. Federal Reserve Balance Sheet – Factors Affecting Reserve Balances – H.4.1 The Fed acquires these securities through open market operations, buying from private banks and dealers on the secondary market rather than directly from Treasury at auction. Federal law authorizes every Federal Reserve Bank to buy and sell direct obligations of the United States in the open market.10Office of the Law Revision Counsel. 12 U.S. Code 355
The Federal Open Market Committee decides when and how much to buy or sell, using those purchases to influence short-term interest rates and the money supply. During economic crises the Fed ramps up purchases to inject liquidity, which is what happened on a massive scale after the COVID-19 pandemic. Starting in June 2022, the Fed reversed course and began shrinking its balance sheet by letting maturing securities roll off without replacement. That reduction process concluded on December 1, 2025.11Board of Governors of the Federal Reserve System. The Central Bank Balance-Sheet Trilemma
Normally the Fed earns interest on its Treasury holdings and remits net earnings to Treasury after covering operating costs and paying a statutory dividend to member banks. Any surplus above a capped amount of $6.825 billion gets transferred to Treasury for the general fund.12Office of the Law Revision Counsel. 12 U.S. Code 289 – Dividends and Surplus Funds of Reserve Banks Since early 2023, though, the Fed has been running negative net income because the interest it pays on bank reserves has exceeded the interest it earns on its older, lower-yielding portfolio. As of September 2025, the Fed had accumulated a deferred asset of $242 billion, essentially an IOU to itself that it will work off before resuming remittances to Treasury.13Board of Governors of the Federal Reserve System. Federal Reserve Balance Sheet Developments
Domestic Institutions and Individual Americans
Set aside the Fed and foreign buyers, and the rest of publicly held debt belongs to a broad mix of American institutions and individuals. Mutual funds, money market funds, commercial banks, insurance companies, pension funds, and state and local governments all hold substantial quantities of Treasuries. These buyers treat government debt as a low-risk anchor in diversified portfolios. Insurance companies and pension funds favor long-term Treasury bonds in particular because the steady interest payments align with their future payout schedules.
Individual Americans also buy directly. The TreasuryDirect platform lets anyone purchase savings bonds starting at $25.14TreasuryDirect. Buying Savings Bonds The two savings bond types currently available are Series EE, which are guaranteed to double in value after 20 years, and Series I, which adjust for inflation.15TreasuryDirect. EE Bonds There is a cap: each person can buy up to $10,000 in electronic I bonds per calendar year, tracked by Social Security number.16TreasuryDirect. Savings Bonds – How Much Can I Spend/Own Many more people hold Treasuries indirectly through brokerage accounts, 401(k) plans, and bond mutual funds without necessarily realizing they are lending money to the federal government.
Federal Trust Funds (The Government Lending to Itself)
About $7.6 trillion of the national debt is money the government owes to itself, specifically to federal trust funds and agency accounts that are legally required to invest their surpluses in Treasury securities.2U.S. Treasury Fiscal Data. Debt to the Penny These are not traded on the open market. They are special-issue securities that earn interest and can be redeemed when the program needs cash to pay benefits.
The Social Security Trust Funds, covering both Old-Age and Survivors Insurance and Disability Insurance, are the largest holders in this category. Federal law directs the Managing Trustee to invest any portion of the trust funds not needed for current withdrawals in interest-bearing obligations of the United States. Those special-issue securities pay interest at a rate tied to the average market yield on outstanding marketable Treasury obligations with four or more years remaining, and each one is backed by the full faith and credit of the government.17Office of the Law Revision Counsel. 42 U.S.C. 401 – Trust Funds The Military Retirement Fund and the Medicare Trust Fund also hold significant balances in these intragovernmental accounts.
This is where the ownership question connects to real money for real people. The Old-Age and Survivors Insurance Trust Fund has been drawing down its reserves since 2021, redeeming securities faster than new surpluses accumulate. The latest Trustees Report projects that the OASI fund will be fully depleted by 2033. At that point, incoming payroll tax revenue would cover only about 77% of scheduled benefits.18Social Security Administration. A Summary of the 2025 Annual Reports Social Security does not vanish, but Congress would need to act before then to avoid automatic benefit cuts.
Why the Mix of Buyers Matters
The composition of the buyer base shapes borrowing costs, monetary policy, and the government’s room to maneuver. Heavy foreign demand helps keep interest rates lower than they would otherwise be. A pullback by any major holder, whether that is Japan, China, or the Federal Reserve, can push yields up and raise the cost of financing future deficits. Domestic trust funds act as a cushion in reverse: when Social Security starts cashing in its securities to pay benefits, Treasury has to find new buyers to replace that funding.
One boundary worth flagging. The statutory debt ceiling caps how much total debt Treasury can have outstanding at any one time. It does not change who the buyers are or what they are owed. During debt-ceiling standoffs, yields on Treasury bills maturing near a projected default date tend to spike because investors demand compensation for the risk of delayed payment, even though no actual default on Treasury securities has ever occurred. For holders, the practical risk is market turbulence and the possibility of a delayed payment, not a permanent loss of principal.