South Dakota Gas Tax
What South Dakota and the federal government charge per gallon of gasoline, from U.S. Energy Information Administration data as of July 2026.
What makes up South Dakota’s 48.4¢
| South Dakota state excise tax | 28.0¢ |
| Other South Dakota taxes & fees sales/use taxes, inspection and environmental fees | 2.0¢ |
| Total South Dakota state tax | 30.0¢ |
| Federal excise + LUST fee 18.3¢ excise + 0.1¢ LUST, unchanged since 1993 | 18.4¢ |
| Combined state + federal | 48.4¢ |
Tank Inspection Fee: $0.0200/gal.
How much of a gallon in South Dakota is tax
South Dakota gasoline currently averages $4.18 a gallon. Against that, the 48.4¢ of combined state and federal tax is about 11.6% of what a driver pays — with local taxes, where they apply, on top.
Tax rate from EIA as of July 2026; pump price is 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.
South Dakota vs. the other 50 states
South Dakota’s state gas tax of 30.0¢ is 3.8¢ below the 33.8¢ average across 50 states and D.C. — the 29th-highest, or equivalently the 23rd-lowest.
South Dakota gas tax, answered
- What is the gas tax in South Dakota?
- South Dakota charges 30.0¢ per gallon in state gasoline taxes — 28.0¢ of state excise tax plus 2.0¢ in other state taxes and fees. Adding the 18.4¢ federal tax brings the total to 48.4¢ 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 South Dakota's gas tax compare to other states?
- South Dakota's state gasoline tax of 30.0¢ per gallon ranks 29th-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 South Dakota?
- The federal gasoline tax is 18.4¢ per gallon in South Dakota, 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 South Dakota is tax?
- With South Dakota gasoline averaging $4.18 per gallon, the 48.4¢ of combined state and federal tax is about 11.6% of the pump price. Local taxes, where they apply, are on top of that.
- Does South Dakota charge local gas taxes too?
- EIA does not flag South Dakota 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 South Dakota 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.