Drivers filling up in Indiana are paying roughly $3.06 a gallon for regular gasoline, the lowest average in the country, while motorists in Hawaii face prices above $5.40. The gap of more than $2.30 per gallon between the cheapest and most expensive states traces directly to tax policy, geography, and supply logistics. Indiana’s advantage is not an accident of the market. It is the product of a governor-ordered tax suspension set to expire on August 6, raising the question of whether Hoosier pump prices will snap back the moment the holiday ends.
Indiana’s tax suspension and the $3.06 price tag
Indiana’s low prices stem from a deliberate policy choice. The governor updated an energy emergency declaration that suspended collection of both the Gas Use Tax and the Gasoline Excise Tax. The Gas Use Tax suspension began April 8, 2026, and the Gasoline Excise Tax suspension followed on May 6, 2026. Both are scheduled to end August 6, 2026.
Under normal conditions, Indiana charges a gasoline excise tax of $0.37 per gallon for the fiscal year running July 1, 2026 through June 30, 2027. Removing that levy, along with the use tax, strips a meaningful layer of cost from every gallon sold in the state. That relief shows up clearly in the price difference between Indiana and neighboring Midwest states that have not enacted similar holidays.
The state also benefits from its position in the nation’s fuel network. Indiana sits close to major Midwestern refineries and pipeline routes that move gasoline from the Gulf Coast and the Chicago area. Shorter transport distances and ready pipeline access help keep wholesale prices comparatively low, amplifying the impact of the temporary tax break. In effect, the suspension stacks on top of an already favorable supply picture.
Hawaii sits at the opposite extreme. The federal retail price data compiled by the U.S. Energy Information Administration confirm that West Coast and Hawaii gasoline prices run substantially higher than Midwest prices. Hawaii’s isolation in the Pacific means nearly all fuel must be shipped in by tanker, adding transportation costs that landlocked refinery states simply do not face. State and local taxes compound the problem, pushing the statewide average above $5.40.
Those structural realities leave Hawaii drivers with few short-term escape routes. Even if global crude prices fall, the islands still pay a premium for shipping, storage, and distribution across multiple islands. Unlike Indiana, Hawaii has not paired those higher costs with a broad, time-limited tax holiday, so the full burden of taxes and logistics continues to show up at the pump.
Will Indiana’s discount survive August 6?
The central question for Indiana drivers is straightforward: what happens when the suspension expires? The hypothesis that the tax holiday will produce a lasting discount beyond August 6, independent of crude oil swings, faces serious obstacles. Tax holidays are, by design, temporary. Once the emergency declaration lapses and the $0.37 per gallon excise tax resumes alongside the use tax, retailers will pass those costs through to consumers within days, as they did when previous state gas tax holidays ended in other states.
Gas stations typically adjust prices as new, higher-taxed fuel flows into their storage tanks. Because wholesale orders are frequent, the lag between a tax change and a visible pump-price shift is usually short. Some retailers might briefly absorb a penny or two per gallon to stay competitive, but the full restoration of state levies is likely to show up quickly, especially if competitors raise prices as soon as their own tax-inclusive deliveries arrive.
Any lasting price advantage Indiana holds after August 6 would depend on factors outside the state’s control, such as lower crude oil benchmarks, seasonal demand declines after the summer driving season, or regional refinery output that keeps Midwest wholesale prices soft. None of those variables are guaranteed, and none are connected to the tax suspension itself. The discount is a policy subsidy with a hard expiration date, not a structural shift in Indiana’s fuel economy.
There is also the question of state finances. Gas taxes fund road maintenance and transportation projects, and months of reduced collections create budget gaps that must be closed later. That fiscal pressure limits the political appetite for extending or repeating broad holidays, making it even less likely that Indiana’s unusually low prices will become the new normal.
What drivers in both states should watch next
Several open questions remain. Indiana has not committed to extending the emergency declaration beyond August 6, leaving drivers and retailers to plan around the scheduled end date. Any move to prolong the suspension would likely come with debate over lost revenue, infrastructure needs, and whether the state should continue subsidizing gasoline at a time when many policymakers are also promoting fuel efficiency and electric vehicles.
Consumers in both Indiana and Hawaii can expect continued volatility driven by global oil markets, hurricane season risks to Gulf Coast refining, and broader economic trends that influence driving demand. For Indiana motorists, the most immediate signal will come from the calendar: as the tax holiday expires, pump prices are poised to climb toward levels seen in neighboring states. For Hawaii drivers, by contrast, the forces shaping fuel costs are entrenched-distance, shipping, and taxes-leaving little prospect of a sudden, Indiana-style break at the pump.
