The US national debt has exceeded $40 trillion, a significant milestone that arrived earlier than many investors expected. This figure represents a substantial increase, having reportedly doubled during the presidencies of Trump and Biden.
The rapid accumulation of debt is a major concern. The national debt grew by $1 trillion in just the past five months. Analysts point to constrained revenues due to tax cuts and ballooning costs for social safety-net programs and interest payments as primary drivers. Interest payments on the debt have become a critical issue, tripling over the last five years and now rivaling Medicare as the government's second-largest expense, behind only Social Security. This means the US is spending more on interest than on national defense and 50% more than on children's programs, which limits the government's ability to fund other federal priorities.
Contributing factors to the rising debt yields include intensified concerns over a budget deficit that is projected to exceed its 2025 level, persistent inflation above the Federal Reserve's 2% target, and increased corporate debt issuance competing with Treasurys. The US experienced a budget shortfall of $432.3 billion in July, which was the widest single-month gain since March 2021, and a $2 trillion deficit is anticipated for the full year ending September 30. Total debt financing costs have reached $1.12 trillion through July and are expected to hit $1.37 trillion for the full fiscal year, exceeding 2025 by approximately $84 billion. This puts debt financing costs as the government's largest expense outside of Social Security and Medicare.
The implications of this growing debt are significant. Experts warn of a potential fiscal crisis as costs outpace revenues. The soaring debt has become a dominant topic on Wall Street, overshadowing other economic discussions, and contributing to volatility in bond markets. Both the 30-year US Treasury yield and the 10-year yield have recently reached high levels, reflecting investor concerns.
