Louisiana Gas Tax
Louisiana’s state taxes and fees on gasoline total 20.9¢ a gallon, the 7th-lowest of 51; with the 18.4¢ federal tax, drivers pay 39.3¢ a gallon in combined tax. Rates are from U.S. Energy Information Administration data as of July 2026.
What makes up Louisiana’s 39.3¢
| Louisiana state excise tax | 20.0¢ |
|---|---|
| Other Louisiana taxes & fees sales/use taxes, inspection and environmental fees | 0.9¢ |
| Total Louisiana state tax | 20.9¢ |
| Federal excise + LUST fee 18.3¢ excise + 0.1¢ LUST, unchanged since 1993 | 18.4¢ |
| Combined state + federal | 39.3¢ |
State Inspection fee (applies to all petroleum products): $0.00125/gal. Motor Fuels Underground Storage Tank Trust Fund fee applies to gasoline, No. 1 diesel, No. 2 diesel, kerosene, and all aviation fuels (not to LPG): $72 per 9,000 gallon load ($0.0080/gal).
Unchanged since 1990
Louisiana’s gasoline excise is 20.0¢ a gallon, and it has not changed since January 1, 1990. It has two parts. Sixteen cents is the older base tax and goes to the state Transportation Trust Fund. The other 4 cents was added in 1989 to pay for TIMED (the Transportation Infrastructure Model for Economic Development), a program of named highway and bridge projects. The rate is a fixed number of cents and is not indexed, so its value has fallen with inflation for more than three decades.
The remainder of the state figure is two small charges that apply to every gallon: a state inspection fee of about a tenth of a cent and a fee for the Motor Fuels Underground Storage Tank Trust Fund, charged at $72 per 9,000-gallon load. The EIA lists no state sales tax on gasoline for Louisiana.
The total, 20.9¢ in the EIA’s July 2026 (revised August 2026) table, is the 7th-lowest of the 50 states and D.C. The average across all 51 is 33.8¢. Louisiana’s pump prices are on the Louisiana 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.
Louisiana's Gas Tax Beside Its Neighbors
Louisiana borders 3 states, and 2 of 3 have a higher state total in the EIA's July 2026 table. Arkansas has the highest state total among them at 25.0¢ (EIA table, July 2026), and Louisiana is 4.1¢ below Arkansas. Louisiana is 3.5¢ (EIA table, July 2026) below Mississippi, whose state total is 24.4¢. Louisiana is 0.9¢ (EIA table, July 2026) above Texas, the bordering state with the lowest total at 20.0¢.
Louisiana's place in the EIA's July 2026 table leaves 44 jurisdictions with a higher state total and 6 with a lower one. State totals in that July 2026 table run from 9.0¢ in Alaska to 73.6¢ in California. Louisiana's total is 12.8¢ below the average state total in the same July 2026 table.
The 0.9¢ (EIA table, July 2026) of other state taxes and fees sits beside an excise share of 96% of the state total. Of the combined state and federal tax on a gallon of gasoline in Louisiana, 53% (EIA table, July 2026) is state tax. In the EIA's July 2026 table, the federal portion of that combination is the same 18.4¢ in every state.
How much of a gallon in Louisiana is tax
Louisiana gasoline is estimated at $3.94 a gallon. Against that, the 39.3¢ of combined state and federal tax is about 10.0% 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 Louisiana).
Louisiana vs. the other 50 states
Louisiana’s state gas tax of 20.9¢ is 12.8¢ below the 33.8¢ average across 50 states and D.C. — it is the 7th-lowest.
Neighboring states' gas tax
| State | State tax | vs. Louisiana |
|---|---|---|
| Arkansas gas tax | 25.0¢ | +4.1¢ |
| Mississippi gas tax | 24.4¢ | +3.5¢ |
| Texas gas tax | 20.0¢ | −0.9¢ |
Louisiana gas tax, answered
- What is the gas tax in Louisiana?
- 20.9¢ a gallon in state taxes and fees; with the 18.4¢ federal tax, 39.3¢ (EIA, July 2026).
- How does Louisiana's gas tax compare to other states?
- The 7th-lowest of the 50 states and D.C.; the average is 33.8¢.
- What is the federal gas tax in Louisiana?
- The federal gasoline tax is 18.4¢ per gallon in Louisiana, the same as in every other state.
- Does Louisiana charge local gas taxes too?
- EIA does not flag Louisiana as allowing local option taxes.
Related to Louisiana gas tax
EIA, “Federal and state motor fuels taxes” (July 2026 (revised August 2026)); how these figures are built.
More Louisiana data
Use this data
Download: Gas tax by state, federal + state rates (CSV).
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Cite as: US Gas Gauge, “Louisiana Gas Tax,” usgasgauge.com/gas-tax/louisiana. Source data: U.S. Energy Information Administration.