Connecticut Gas Tax
Among the Lowest
Connecticut charges 25.00 cents per gallon in state tax, ranking 35 of 50, which is among the lowest in the country. With the federal 18.40 cents added, a driver pays 43.40 cents per gallon in tax. Diesel is taxed at 49.90 cents.
What “Among the Lowest” means
State gas tax in the bottom third nationally.
17 of 50 states are in the same category
Alongside Connecticut: Alaska, Arizona, Arkansas, Delaware, Hawaii, Kansas, Louisiana, Mississippi, Nevada, New Hampshire, New Mexico, New York, and 4 more.
Source: Tax Foundation · as of 2026 · last verified September 24, 2026
See every state in our gas tax tracker, or everything we track for Connecticut.
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