$120B June Deficit as $49.2B in Tariff Refunds Reverse Prior Surplus

For fixed-income investors and macro traders, the sudden appearance of a $120 billion monthly deficit—triggered not by new spending but by court-ordered refunds—signals a dramatic reversal of the tariff revenue windfall that briefly bolstered federal coffers. As the Treasury grapples with an uncertain revenue stream and the White House weighs new trade levies, the outlook for government borrowing and yields is shifting rapidly.

The U.S. federal budget swung from a $27 billion surplus in June 2025 to a $120 billion deficit in June 2026, entirely upended by court-ordered refunds of tariffs the Supreme Court had declared illegal. The Treasury Department reported gross customs duties of $23.6 billion for the month, but refunds surged to $49.2 billion, leaving a net outflow of $25.6 billion and transforming what is normally a strong revenue month into a gaping fiscal hole.

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The Treasury Department reported gross customs duties of $23.6 billion for the month, but refunds surged to $49.2 billion, leaving a net outflow of $25.6 billion and transforming what is normally a strong revenue month into a gaping fiscal hole.

The genesis of this reversal lies in President Trump’s aggressive use of the International Emergency Economic Powers Act to impose broad global tariffs. The Supreme Court struck down those levies in February 2026, ruling them illegal and triggering mandatory refunds of duties already collected. Refunds began in May at $22 billion, causing a net outflow of $42 million. By June, the refund pace more than doubled, reflecting the mounting administrative pressure from the court’s order and a federal judge’s warning that the government’s appeal was needlessly delaying payments. Through May and June, $71 billion in refunds had been issued, representing 42% of the $166 billion in IEEPA-based tariffs subject to repayment.

This sudden drain is not a one-time shock. The temporary 10% global tariff—a stopgap put in place after the Supreme Court ruling—is set to expire on July 24, 2026, while the administration is simultaneously preparing new duties targeting what it calls lax enforcement of anti-forced labor laws and excess industrial capacity. The outcome is a trade policy landscape in constant flux, where tariff-related revenues are no longer predictable and the precedent of refunds hangs over any new collections. A Treasury official declined to comment on the future path of refunds, underscoring the opacity surrounding the budget outlook.

The fiscal impact is already measurable: total receipts in June fell by $31 billion, or 6%, to $496 billion compared to a year earlier. That drop, combined with steady outlays, produced the $120 billion deficit. Just twelve months earlier, Treasury Secretary Scott Bessent had pointed to the $27 billion surplus and net customs collections of $26.6 billion as proof that the U.S. was “reaping the rewards” of the tariff agenda. That narrative has now collapsed.

For markets, the June deficit raises several red flags. First, the sheer speed of the deterioration—a $147 billion swing in the monthly balance—underscores how dependent the budget had become on a revenue stream of dubious legality. Second, the incoming administration faces hard choices: either allow the temporary tariff to lapse and lose a key source of funds, or extend it and risk further legal challenges and refund liabilities. Third, the refund backlog means the deficit could worsen in coming months, pressuring the Treasury to increase borrowing and potentially nudging long-term yields higher.