Explainers | Federal Spending

One Thing Explained: The debt comes in two buckets, and only one of them is borrowed from the public

Of the $40.3 trillion national debt, the fiscal year end split on September 30, 2026 put about $32.43 trillion in debt held by the public and about $7.75 trillion in intragovernmental holdings held by federal trust funds.

The Daily Ledger Staff
October 14, 2026 · 3 min read

Key takeaways

Total federal debt splits into two parts: debt held by the public and intragovernmental holdings. At the September 30, 2026 fiscal year end, the split was about $32.43 trillion held by the public and about $7.75 trillion intragovernmental, against a total of $40.3 trillion on October 9, 2026.
Debt held by the public, about 81 percent of the total at fiscal year end, is owned by investors, banks, mutual funds, the Federal Reserve, and foreign holders.
Intragovernmental holdings, about 19 percent, are Treasury securities held by federal trust funds such as Social Security. They are real obligations of the Treasury, held inside the government itself.

Bucket one: debt held by the public

Debt held by the public is every Treasury bill, note, and bond owned by someone outside the federal government. The holders include individual investors, mutual funds, pension funds, banks, insurance companies, state and local governments, the Federal Reserve, and foreign governments and investors abroad. Foreign holders owned about $9.25 trillion of Treasury securities in July 2026, per Treasury International Capital data, with Japan the largest holder at about $1.10 trillion.

This is the bucket that interacts with financial markets. Treasury sells these securities at auction to raise cash, investors trade them daily, and the interest Treasury pays on them goes to outside holders. When analysts talk about the borrowing the government does in credit markets, this is the figure they mean.

Bucket two: intragovernmental holdings

Intragovernmental holdings are Treasury securities held by accounts inside the federal government, above all the Social Security trust funds, along with federal employee retirement funds and other trust funds. By law, when a trust fund takes in more than it pays out, the surplus is invested in special Treasury securities. The cash goes to the Treasury General Account and is spent as part of general operations, and the trust fund holds the security as its asset.

Two points keep this bucket in plain English. First, the securities are real: the Treasury pays interest on them and must redeem them when a trust fund needs cash to pay benefits, and redeeming them requires the Treasury to raise that cash from taxes or from new borrowing from the public. Second, they are not counted twice. The $40.3 trillion total on October 9, 2026 is the sum of the two buckets, not the total plus the trust funds on top.

The split matters for reading the daily number. A day when the total rises mostly through the public bucket means new borrowing from investors. A day when it rises mostly through intragovernmental holdings usually means trust fund receipts were invested. On September 30, 2026, the fiscal year end, the total rose $74.9 billion in a day, with $57.1 billion of the increase in debt held by the public and $17.7 billion in intragovernmental holdings. Both buckets are published in the Treasury Debt to the Penny dataset, and the split figures in this explainer are the September 30, 2026 values, the latest fiscal year end split in the Ledger records.

Sources

1. U.S. Department of the Treasury, Fiscal Data, Debt to the Penny dataset: https://fiscaldata.treasury.gov/datasets/debt-to-the-penny/debt-to-the-penny

2. U.S. Department of the Treasury, Fiscal Data, Monthly Treasury Statement dataset: https://fiscaldata.treasury.gov/datasets/monthly-treasury-statement/monthly-treasury-statement

Source: U.S. Department of the Treasury, Daily Treasury Statement, September 28, 2026; Debt to the Penny.

Sources and methodology

Methodology. Daily cash figures are from the U.S. Treasury’s Daily Treasury Statement (DTS) for September 28, 2026, the government’s official daily cash-flow report. The DTS records money actually moving in and out of Treasury accounts; it is not the same as the budget deficit, which is measured monthly on an accrual-adjusted basis.

U.S. Department of the Treasury, Daily Treasury Statement – operating cash balance, September 28, 2026 (fiscaldata.treasury.gov)
U.S. Department of the Treasury, Debt to the Penny – September 28, 2026 (fiscaldata.treasury.gov)

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