US Gross National Debt Crosses $40 Trillion Amid Fiscal Deficits
In brief
- US gross national debt hit $40.05 trillion on August 18, up $658 billion since July 1
- Federal government adds $8–9 billion daily; fiscal year 2026 deficit reached $1.8 trillion through July
- Net interest payments climbed 14% year-over-year, competing with defense and Medicare as top expense
- Higher Treasury yields raise borrowing costs; CBO and Bipartisan Policy Center warn current path unsustainable
Debt growth accelerates
The US national debt rose $658 billion since July 1, according to Treasury data cited by Crypto Briefing. That pace translates to roughly $8 to $9 billion in new debt every single day. Debt held by the public—the portion economists consider most relevant for measuring economic impact—stood at roughly $32.0 to $32.2 trillion during the same period.
The national debt has more than doubled compared to a decade ago. The total federal deficit for fiscal year 2026 reached $1.8 trillion through July, a 4% increase compared to the same point last year.
Interest payments reshape federal budget
The fiscal math is shifting in ways that alarm budget analysts. Net interest payments climbed by $117 billion year-over-year, a 14% increase. Interest on the national debt is now competing with defense spending and Medicare for the title of largest federal expense.
Mandatory spending programs, primarily Social Security and Medicaid, account for the largest share of federal outlays. As interest costs rise, they crowd out discretionary spending and amplify the structural imbalances in the federal budget.
Market implications and sustainability questions
The debt trajectory carries consequences beyond Washington. As Treasury issuance increases to fund the deficit, the supply of government bonds grows, pushing yields higher. Higher Treasury yields raise borrowing costs for corporations, homebuyers, and consumers.
The Congressional Budget Office and the Bipartisan Policy Center have flagged the current debt path as unsustainable. While the US retains the ability to print its own currency, making outright default a theoretical impossibility, the erosion of fiscal credibility and the ripple effects of higher borrowing costs pose real economic risks.
The $40 trillion milestone underscores a budget dynamic that's become harder to ignore: federal spending commitments are outpacing revenue growth, and the financial system is pricing in the risk.
