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US National Debt Hits Record $40.5 Trillion on Interest Costs
Why did US national debt hit a record $40.5 trillion?
US national debt rose to a record $40.53 trillion on Monday, up from $40.05 trillion in August, as a $2 trillion yearly deficit and $1 trillion in interest costs kept adding to borrowing.
Key numbers
| Total US debt (Oct 26) | $40.53T+$0.48T since Aug 18 |
|---|---|
| Debt held by the public | $32.64T80.5% of total |
| FY2026 budget deficit | $2.0T+$0.2T vs FY2025 |
| FY2026 net interest cost | $1.1Tfirst year above $1T |
| 10-year Treasury yield (Oct 26) | 5.00%-12 bp since Oct 20 |
What happened
US national debt rose to a record $40.53 trillion on Monday, up from $40.05 trillion in August, as a $2 trillion yearly deficit and $1 trillion in interest costs kept adding to borrowing. That works out to about $7 billion more borrowed each day since August, when debt first passed $40 trillion. The deficit, the gap between what Washington spends and collects, hit $2.0 trillion for the year ended September, and about $1 trillion went to interest. Ten-year Treasury yields, which set many borrowing costs, sat at 5.00% on Oct. 26.
Why it matters
The US national debt matters because interest on it now costs about $1 trillion a year, money that cannot go to other spending or tax cuts. With the 10-year Treasury yield, a benchmark that influences mortgage and loan rates, at 5.00%, new borrowing is expensive. The IMF projects US debt at 125.8% of the economy this year, below Japan and Italy but above France.
Who this affects
- MarketbearishMedium impact
- Heavy Treasury supply keeps yields near 5%, pressuring bond prices.
- CompanybearishMedium impact
- Government pays $1 trillion yearly in interest, a budget strain.
- CompetitorsneutralLow impact
- Japan and Italy carry higher debt ratios; France lower.
- IndustrybearishLow impact
- Banks, bond funds and taxpayers all feel higher borrowing costs.
United States vs Japan, Italy, France
| United States | 125.8% |
|---|---|
| Japan | 204.4% |
| Italy | 138.4% |
| France | 118.4% |
As of 2026-05-01
How we got here
US debt crosses $38 trillion
Debt passes $40 trillion for the first time, at $40.05 trillion
Fiscal 2026 ends with a $2.0 trillion deficit and about $1.1 trillion in interest
Debt reaches a record $40.53 trillion, Treasury data show
What to watch
- Fed rate decision and press conference, which can move Treasury yields and borrowing costs2026-10-28
- At about $7 billion a day, debt would pass $41 trillion around early January2027-01
Educational content only. Not investment advice.
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