Debt held by the public reached 100% of gross domestic product for the fiscal year that ended Sept. 30, putting the federal debt burden back at a level not seen since 1946. The government reported $32.2 trillion in publicly held debt as of that date, and the third-quarter figures released Thursday put the ratio at 100.03%.
That number matters because it marks the first fiscal-year reading at triple digits since Harry Truman was president. President Trump is now the first president since Truman to see the ratio this high, even though the government had already crossed 100% in an intrayear calculation earlier this year.
The level was lower than the Congressional Budget Office’s February forecast of 100.6%, and the fiscal 2025 reading was 99.4%. But the broader picture has been moving in one direction for years. The ratio was 33.7% in 2000 and falling, with the government running surpluses at the time. Since then, Congress has approved multiple tax cuts and lifted spending in response to the Sept. 11 attacks, the 2008 to 2009 financial crisis and the Covid-19 pandemic, while an aging population has driven higher Social Security and Medicare costs.
The comparison with 1946 is not just symbolic. The record debt-to-GDP ratio is 106%, set that year after the borrowing that paid for World War II. This time, the buildup has come without a single war-driven spike, but through a slower accumulation of borrowing tied to tax policy, emergency spending and long-term benefit costs.
There is still some room for the final number to move. Revisions to third-quarter GDP or changes in Treasury debt issuance could leave the fiscal-year ratio slightly above or below 100%, even after the official milestone. That is the narrow opening in an otherwise clear turning point: the United States has returned to triple-digit public debt relative to the economy, and the next question is not whether the line was crossed, but how much farther it will go.
The pressure does not stop at this year’s ratio. The Journal put the fiscal 2026 deficit at nearly $2 trillion, or 6.2% of GDP, while the Social Security Trustees project the retirement trust fund will run out in 2032. After that, only 78% of scheduled Social Security benefits could be paid unless Congress acts. The CBO also projects net interest costs rising by more than 1% of GDP over the next decade, and it made that forecast assuming interest rates well below today’s. On Oct. 28, the 10-year Treasury yield stood at 5.05% and the 30-year at 5.37%; rates just 0.1 percentage point above the CBO’s assumptions would add $379 billion in interest over a decade.
Economists prefer debt held by the public because it better measures the borrowing burden on the economy. Gross federal debt recently passed $40 trillion, but that figure includes money one part of the government owes another. The bigger story is that the country has moved back into territory last seen in the aftermath of World War II, and this time there is no quick path back down.
