More pain at the pump: WA’s 6-cent per gallon gas tax hike now in effect

(The Center Square) – Motorists in Washington state are experiencing gas prices higher than the national average, in contrast to declining gas prices across much of the rest of the nation in recent months.

As of Tuesday, Washingtonians are paying even more to fuel up. The state’s gas tax increased by 6 cents per gallon, from 49.4 cents to 55.4 cents. Starting July 1, 2026, it will rise each year by 2% to account for inflation.

The state tax on diesel is also increasing by 3 cents per gallon, bringing the total tax to 58.4 cents per gallon. Additionally, there will be another 3-cent increase in the diesel tax in 2027. Starting in 2028, the diesel tax will increase by 2% annually to keep pace with inflation. …

Gas prices have increased in Washington over the last year, bucking the national trend of declining gas prices. …

Several factors beyond the now-in-effect gas tax hike contribute to high prices in Washington, including refinery issues, geography and supply chain considerations, and state-specific policies.

Problems at refineries, especially in California, impact gas prices on the West Coast and drive up prices in Washington.

The state’s dependence on certain oil suppliers and its limited pipeline capacity also contribute to higher costs compared to other regions.

And then there is Washington’s Climate Commitment Act, which caps the total amount of pollution allowed in the state by requiring covered businesses to obtain allowances equal to their emissions.

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