Connecticut Gas Tax
Connecticut’s state taxes and fees on gasoline total 25.0¢ a gallon, tied for the 15th-lowest of 51; with the 18.4¢ federal tax, drivers pay 43.4¢ a gallon in combined tax. Rates are 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.
Connecticut's tax: a flat excise and a gross earnings tax
Connecticut taxes gasoline in two ways. The motor vehicle fuels tax is a flat 25.0¢ a gallon, which is the figure the EIA table shows. Separately, the petroleum products gross earnings tax charges 8.1 percent of the gross earnings from the first sale of petroleum products in the state. That tax is paid by distributors and built into the wholesale price, so it does not appear as a per-gallon amount in the EIA table, and Connecticut’s total is understated compared with states that levy their percentage taxes in cents per gallon.
The excise is not indexed. It was suspended entirely from April 1 through December 31, 2022, during that year’s price spike, then restored in 5¢ steps: 5¢ on January 1, 2023, rising by a nickel each month to the full 25¢ on May 1, 2023.
On the EIA’s basis, Connecticut’s total state tax of 25.0¢ a gallon is tied for the 15th-lowest of the 50 states and D.C., against a 51-jurisdiction average of 33.8¢.
How the tax fits with fuel supply and price history is covered on the Connecticut gas prices page.
Sources: current rates and rankings are from the EIA motor fuel tax table in our database; other facts are from the sources listed here.
Connecticut's Place Among Its Neighbors
Rhode Island shows the highest state total among the states bordering Connecticut: 41.1¢ in the EIA's July 2026 table, which puts Connecticut 16.1¢ below it. New York shows the lowest of the bordering states at 24.2¢ (EIA table, July 2026), and Connecticut's 25.0¢ sits 0.8¢ above that figure. Massachusetts is listed at 27.6¢ (EIA table, July 2026), so Connecticut is 2.6¢ below it. Of the 3 bordering states, 2 (EIA table, July 2026) of 3 have a higher state total than Connecticut.
Statewide, the EIA's July 2026 table lists 25.0¢ as Connecticut's state total. That is 8.8¢ (EIA table, July 2026) below the 33.8¢ average for the 50 states and D.C., and the standing is tied for 15th-lowest. Counting jurisdictions, 14 (EIA table, July 2026) have a lower state total and 35 have a higher one. The range in the July 2026 table runs from 9.0¢ (Alaska) to 73.6¢ (California).
In the EIA's July 2026 table, the whole of Connecticut's 25.0¢ is excise, and other state taxes and fees are listed at 0.0¢. Excise therefore stands at 100% (EIA table, July 2026) of the state total. Adding the 18.4¢ (EIA table, July 2026) federal tax gives 43.4¢, and in that combined figure the state's share is 58%.
The EIA lists state taxes of general application, so county and local taxes are left out of these figures, and the table shows no local option gasoline taxes for Connecticut.
How much of a gallon in Connecticut is tax
Connecticut gasoline is estimated at $4.51 a gallon. Against that, the 43.4¢ of combined state and federal tax is about 9.6% of what a driver pays — with local taxes, where they apply, on top.
Tax rate from EIA as of July 2026; pump price is this week’s US Gas Gauge estimate from EIA regional prices (EIA publishes no weekly average for Connecticut).
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. — it is tied for the 15th-lowest.
Neighboring states' gas tax
| State | State tax | vs. Connecticut |
|---|---|---|
| Rhode Island gas tax | 41.1¢ | +16.1¢ |
| Massachusetts gas tax | 27.6¢ | +2.6¢ |
| New York gas tax | 24.2¢ | −0.8¢ |
Connecticut gas tax, answered
- What is the gas tax in Connecticut?
- 25.0¢ a gallon in state taxes and fees; with the 18.4¢ federal tax, 43.4¢ (EIA, July 2026).
- How does Connecticut's gas tax compare to other states?
- Tied for the 15th-lowest of the 50 states and D.C.; the average is 33.8¢.
- 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.
- Does Connecticut charge local gas taxes too?
- EIA does not flag Connecticut as allowing local option taxes.
Related to Connecticut gas tax
EIA, “Federal and state motor fuels taxes” (July 2026 (revised August 2026)); how these figures are built.
More Connecticut data
Use this data
Download: Gas tax by state, federal + state rates (CSV).
Column definitions, coverage and every file: gas price data. Free to reuse under CC BY 4.0 with credit.
Cite as: US Gas Gauge, “Connecticut Gas Tax,” usgasgauge.com/gas-tax/connecticut. Source data: U.S. Energy Information Administration.