WASHINGTON, D.C. / RankWire.AI / – The total gross national debt of the United States has crossed the $40 trillion threshold for the first time, marking a significant fiscal milestone. The U.S. Treasury’s Debt to the Penny data indicated a figure of $40.047 trillion on Aug. 18. By Aug. 27, the debt had risen slightly to approximately $40.078 trillion. Of this total, around $32.314 trillion was held by outside investors and institutions, while federal government accounts managed roughly $7.764 trillion.
This $40 trillion mark was reached less than five months after the gross federal debt hit $39 trillion in March. A decade prior, in August 2016, the total was near $19.5 trillion. Federal debt increases when government spending outpaces revenue, requiring Washington to borrow to bridge the gap. Pandemic-related expenditures led to unusually high deficits, and after emergency programs concluded, annual budget shortfalls persisted. The government primarily finances these deficits through issuing Treasury securities.
During the first ten months of fiscal 2026, the Congressional Budget Office reported a federal budget deficit of $1.8 trillion. This figure is $169 billion higher than the same period last year. Revenues increased by $139 billion, or 3%, while expenditures grew by $308 billion, or 5%. The agency now projects a $2.1 trillion deficit for fiscal 2026, up from its earlier February estimate of $1.9 trillion.
Rising interest costs mirror increased borrowing
Interest payments have become a significant portion of federal spending, driven by rising debt levels and borrowing costs. Current projections estimate that net federal interest expenses will exceed $1 trillion in fiscal 2026, compared to $970 billion in 2025. This amount represents approximately 3.3% of gross domestic product. Under current estimates, net interest costs could reach $2.1 trillion by 2036, or 4.6% of GDP. At that level, interest expenses nearly match the entire projected discretionary federal budget.
Publicly held debt, when measured against the size of the U.S. economy, remains near historic peaks. Forecasts suggest that debt held by the public could reach 101% of GDP in 2026 and climb to 120% by 2036. The previous record was 106% in 1946, shortly after World War II. The baseline scenario projects that publicly held debt will be close to $56 trillion by 2036, with gross federal debt approaching $64 trillion. The current statutory debt ceiling is set at $41.1 trillion.
Wider economic impact of rising federal debt
Federal borrowing influences not only government finances but also broader economic conditions. Budget analysts have identified that increased government borrowing competes with private sector savings, which can elevate borrowing costs over time. This process tends to reduce private investment and slow economic growth compared to a lower-debt trajectory. Lower investment levels also mean less productive capital for workers, negatively impacting productivity and wages. These dynamics connect federal debt levels with credit conditions, business investment, and household income throughout the economy.
Gross national debt and the federal deficit reflect different elements of government finance. The gross debt encompasses accumulated federal obligations, including publicly held securities and those held by government accounts, whereas the deficit measures the annual difference between spending and revenue. Both indicators remain high in 2026, with gross debt exceeding $40 trillion and the annual deficit estimated at $2.1 trillion. Federal deficits currently account for about 5.8% of GDP this year, compared to a 50-year average of 3.8%.