President Donald Trump has proposed pausing the federal gas tax, a move aimed at shielding American consumers from rising fuel costs as geopolitical tensions with Iran push prices higher. But the plan carries a steep trade-off: it threatens to drain billions of dollars from the Highway Trust Fund and other essential infrastructure programs.
The proposal
The federal gas tax currently sits at 18.4 cents per gallon for gasoline and 24.4 cents for diesel. Trump's proposal would suspend collection of those taxes for a period that has not yet been specified. The White House framed the idea as a direct response to recent spikes in oil prices, which have been driven by instability in the Middle East and the administration's own pressure campaign against Iran's energy exports. The goal, according to the president, is to give drivers immediate relief at the pump without waiting for Congress to pass broader legislation.
Infrastructure funding at risk
The federal gas tax is the primary source of revenue for the Highway Trust Fund, which finances road, bridge, and transit projects across the country. In recent years, the fund has already faced shortfalls, requiring general fund transfers to keep it solvent. Suspending the tax — even temporarily — would eliminate a steady stream of revenue that states and the federal government rely on for long-term construction and maintenance. The administration has not identified a replacement funding mechanism, leaving infrastructure advocates worried that projects could be delayed or scaled back.
Without the gas tax, the gap between what the trust fund collects and what it spends would widen significantly. The Congressional Budget Office has previously estimated that the fund would run a deficit of more than $10 billion annually even without a suspension. A pause would accelerate that shortfall, forcing either deep cuts to infrastructure spending or more emergency transfers from the general Treasury.
What happens next
Trump's proposal is just that — a proposal. The president cannot suspend the gas tax on his own; only Congress has the authority to set or waive federal fuel taxes. Lawmakers are already divided on the idea. Some Republicans have expressed support for consumer relief but are wary of starving infrastructure projects. Democrats counter that the real solution is to increase funding for roads and bridges, not cut it. With the proposal still in its early stages, no formal legislation has been introduced. The White House has not released a detailed plan or timeline. For now, the question of how to keep infrastructure solvent while giving drivers a break remains unresolved.
