Macro EconomyMedium11 September 2026
2 min read

US Federal Deficit Hits $2 Trillion in First 11 Months of FY2026

Key Facts

1The CBO reported that the federal budget deficit reached $2 trillion during the first 11 months of fiscal year 2026.
2The deficit surge is driven by increased spending on Social Security, Medicare, Medicaid, and rising debt servicing costs.

Amid escalating fiscal pressures on the U.S. national balance sheet, the Congressional Budget Office (CBO) reported that the federal budget deficit reached $2 trillion during the first 11 months of fiscal year 2026. This significant fiscal gap is primarily driven by increased mandatory spending on Social Security, Medicare, and Medicaid. Furthermore, rising debt servicing costs in a high-interest-rate environment have exacerbated the deficit, highlighting growing concerns regarding long-term debt sustainability.

According to market data and fiscal reports, total federal spending increased by $147 billion compared to the previous year, even as individual income tax receipts grew by 8%. Specific data shows that Social Security outlays rose by $78 billion, while Department of Defense spending increased by $41 billion due to higher personnel and R&D costs. This borrowing pace has already surpassed the total for the entirety of the previous fiscal year, with further increases expected in September.

Looking ahead, traders are monitoring the impact of these fiscal dynamics on Treasury yields as the deficit remains at historic levels. In recent economic data, while Germany reported a trade surplus of 21.3 billion on September 8, 2026, the U.S. saw the MBA 30-year mortgage rate rise to 6.85% as of September 9, 2026. Markets will remain attentive to any fiscal policy shifts aimed at addressing the national debt, which continues to hit unprecedented milestones.