U.S. Debt Surpasses $40 Trillion After Doubling Under Trump and Biden

According to recent reporting from the Treasury Department, the total outstanding gross national debt of the United States has officially surpassed $40 trillion for the first time in history. Data reveals that the total public debt outstanding reached $40.047 trillion, a figure comprising $32.266 trillion in Treasury securities held by the public alongside $7.782 trillion in intra-governmental holdings. This milestone reflects an acceleration of federal borrowing; the debt burden reached $40 trillion less than five months after hitting $39 trillion, has more than doubled in under a decade from $19.95 trillion in January 2017, and has quadrupled over the past two decades.

This sharp expansion is driven by a combination of structural fiscal imbalances and recent legislative decisions. Ballooning costs for mandatory entitlement programs like Social Security and Medicare, combined with diminished revenue streams affected by tax cuts, continue to widen the gap. Additionally, heavy spending during the COVID-19 pandemic under both the Trump and Biden administrations accounts for approximately one-third of the growth since 2017. Overall, public debt rose by $7.8 trillion during President Donald Trump's first term, increased by $8.4 trillion during President Joe Biden's single term due to pandemic recovery, infrastructure investments, and green energy initiatives, and has added another $3.8 trillion since President Trump returned to office in January 2025. Nonpartisan policy analysts at the Committee for a Responsible Federal Budget emphasize that discretionary decisions under both administrations have significantly elevated the long-term debt trajectory beyond baseline statutory projections.

The financial strain is further compounded by escalating debt service costs. Cumulative 12-month rolling interest payments have exceeded $1 trillion since early 2024—more than double the amount recorded in 2020—making interest the second-largest outlay in the federal budget behind major entitlement programs. These worsening conditions are reflected in recent budgetary metrics, such as a July monthly deficit of $432 billion, driven partly by negative customs receipts from tariff refunds and rising entitlement outlays. Consequently, the cumulative deficit for the first ten months of fiscal year 2026 has already eclipsed the full-year deficit total for fiscal year 2025.

The growing debt volume and high issuance of federal bonds have stirred volatility in global financial markets. International investors, who hold nearly one-third of all Treasuries, have reduced their demand over the past year. In response to heavy supply, long-term bond yields recently reached their highest levels in nearly two decades, pushing up benchmark interest rates for commercial loans, auto loans, and mortgages. To stem rising yields, Treasury Secretary Scott Bessent announced an increase in buyback operations for 10- to 30-year Treasuries to at least $4 billion per operation. Meanwhile, President Trump dismissed concerns regarding market volatility, continuing his public calls for lower interest rates and expressing confidence in the fundamental strength of the American economy. Nonetheless, fiscal watchdogs warn that without systemic policy adjustments—namely spending cuts, tax increases, or a combination of both—the country faces heightened risks of inflation, constrained budget capacity, and broader economic vulnerability.