Connecticut Gas Tax
What Connecticut and the federal government charge per gallon of gasoline, from U.S. Energy Information Administration data as of July 2026.
What makes up Connecticut’s 43.4¢
| Connecticut state excise tax | 25.0¢ |
| Other Connecticut taxes & fees sales/use taxes, inspection and environmental fees | — |
| Total Connecticut state tax | 25.0¢ |
| Federal excise + LUST fee 18.3¢ excise + 0.1¢ LUST, unchanged since 1993 | 18.4¢ |
| Combined state + federal | 43.4¢ |
Petroleum Products Gross Earnings tax (PGET): 8.1% of gross earnings in each taxable quarter derived from the first sale of petroleum products. PGET does not apply to products to be used as heating fuels or bunker fuels.
How much of a gallon in Connecticut is tax
Connecticut gasoline currently averages $4.46 a gallon. Against that, the 43.4¢ of combined state and federal tax is about 9.7% of what a driver pays — with local taxes, where they apply, on top.
Tax rate from EIA as of July 2026; pump price is the current EIA weekly average. The two are published on different schedules, so the share moves as prices move even when the tax does not.
Connecticut vs. the other 50 states
Connecticut’s state gas tax of 25.0¢ is 8.8¢ below the 33.8¢ average across 50 states and D.C. — the 37th-highest, or equivalently the 15th-lowest.
Connecticut gas tax, answered
- What is the gas tax in Connecticut?
- Connecticut charges 25.0¢ per gallon in state gasoline taxes — 25.0¢ of state excise tax. Adding the 18.4¢ federal tax brings the total to 43.4¢ per gallon, according to U.S. Energy Information Administration data as of July 2026. These are state and federal taxes only and exclude county and local taxes.
- How does Connecticut's gas tax compare to other states?
- Connecticut's state gasoline tax of 25.0¢ per gallon ranks 37th-highest of the 50 states and D.C. that EIA lists, against an average of 33.8¢. The highest is California at 73.6¢ and the lowest is Alaska at 8.9¢.
- What is the federal gas tax in Connecticut?
- The federal gasoline tax is 18.4¢ per gallon in Connecticut, the same as in every other state — 18.3¢ of excise tax plus a 0.1¢ Leaking Underground Storage Tank fee. It has been unchanged since 1993.
- How much of the price of gas in Connecticut is tax?
- With Connecticut gasoline averaging $4.46 per gallon, the 43.4¢ of combined state and federal tax is about 9.7% of the pump price. Local taxes, where they apply, are on top of that.
- Does Connecticut charge local gas taxes too?
- EIA does not flag Connecticut as a state where local option taxes are allowed. Its table covers taxes of general application and excludes county and local taxes in every state, so treat the figures here as state and federal only.
Related to Connecticut gas tax
Tax rates from the U.S. Energy Information Administration, “Federal and state motor fuels taxes”, edition July 2026 (revised August 2026) (as of July 2026), published on EIA’s Petroleum Marketing Monthly page and reissued each January and July. EIA lists taxes “of general application … exclusive of county and local taxes”; rates are for gasoline.