US budget deficit hits $432 billion in July, highest since 2021

The U.S. budget deficit widened to $432.3 billion in July, the largest monthly shortfall since March 2021, as Medicare costs and interest on the national debt pushed fiscal-year-to-date red ink past the full 2025 total.

A Treasury official said unadjusted outlays for the month were a July record at $766 billion, up $137 billion or 22% from a year earlier, with $99 billion of that reflecting August benefit payments pulled forward because the month started on a weekend. Adjusted for those shifts, the July deficit was $333 billion, up $50 billion or 18% from a year earlier.

Medicare expenses totaled $174 billion in July, up from $103 billion in June and the single largest outlay, ahead of $141 billion for Social Security and $104 billion in net interest on the national debt. For the first 10 months of fiscal 2026, the deficit reached $1.799 trillion, up $170 billion or 10% from the year-ago period and already above the full fiscal 2025 shortfall of $1.775 trillion with two months left in the fiscal year.

The widening gap highlights the fiscal strain from debt financing, which has become the second-largest government expenditure behind Social Security. The U.S. has paid out $1.17 trillion in interest on the $39.9 trillion national debt this fiscal year, up about $157 billion from a year earlier, with net interest totaling $931 billion.

Medicare and interest costs drive the surge

The July shortfall was the largest since March 2021, when the deficit hit $660 billion on COVID-19 relief programs. Medicare spending reflects higher per-enrollee costs and benefit growth, while interest costs have climbed as the debt stock and long-term yields have risen. Revenue collections fell $4 billion, or 1%, to $334 billion in July, including an $8.55 billion outflow of net customs receipts after tariff refunds totaling $33.38 billion. The refunds stem from tariffs imposed under the International Emergency Economic Powers Act, which the Supreme Court ruled illegal.

Fiscal path complicates Fed policy

The deterioration comes as the Federal Reserve weighs its next move. President Donald Trump has pressed the central bank to lower benchmark rates to reduce debt costs, but has held off on criticism since his nominee, Kevin Warsh, took over as chairman in May. Markets had been looking for the Fed to raise rates to control inflation running above the central bank's 2% target for more than five years, though recent benign inflation data and a soft payroll report have tempered those expectations. Futures traders are not pricing in any chance of a rate cut for the next five years.

The trajectory is unsustainable, according to Jordan Haring, director of fiscal policy at the American Action Forum. Federal debt held by the public stood at $31.5 trillion at the end of May, up $2.6 trillion from a year earlier, and has nearly doubled since May 2019, before the fiscal impact of the pandemic materialized. Interest payments rose $58 billion, or 9%, in the first eight months of the fiscal year because the debt was larger and long-term rates were higher.

If the deficit continues to widen, the Treasury will need to issue more debt, which could push yields higher and raise borrowing costs across mortgages, corporate credit, and government financing. Higher long-term yields would also ripple into equities, where the S&P 500 has traded near record levels, and keep pressure on housing affordability. That dynamic, in turn, complicates the Fed's inflation fight and keeps the fiscal outlook strained into the next fiscal year, which begins Oct. 1.

This article is for informational purposes only and does not constitute investment advice.