Alabama Gas Tax Calculator
2026Alabama charges 31¢ a gallon in state tax on gasoline and 32.75¢ on diesel in 2026, on top of the federal 18.4¢ and 24.4¢: 49.4¢ and 57.15¢ a gallon in all. Estimate your fuel costs.
By Konstantin Iakovlev · Updated October 19, 2026 · Methodology
Fuel Needed
1.0 gal
Trip Cost
$4.33
Annual Cost
$1,125.80
Fuel Cost Breakdown
| Total Distance | 30.0 miles |
| Fuel Needed | 1.00 gallons |
| One-Way Cost | $4.33 |
| Trip Cost | $4.33 |
| Weekly Cost | $21.65 |
| Monthly Cost | $93.82 |
| Annual Cost | $1,125.80 |
Disclaimer: This calculator is for informational purposes only and does not constitute tax, financial, or legal advice. Results are estimates based on the information you provide and current rates. Always consult a qualified tax professional or financial advisor for advice specific to your situation.
Alabama Gas Tax Overview
Alabama’s state tax on gasoline is 31¢ a gallon and 32.75¢ on diesel, the rate in force since July 1, 2025. That is the 26th-highest state gasoline tax of the 50 states and DC. Adjusted every other July 1 (next in 2027) to highway construction costs, by no more than 1¢ up or down.
With the federal 18.4¢, a gallon of gasoline carries 49.4¢ of per-gallon tax, so a 15-gallon fill-up includes about $7.41 of fuel tax whatever the pump price. Many Alabama counties and cities levy their own gas taxes on top of the state rate; amounts vary by locality.
The rate is due to be reset on July 1, 2027; the new figure is not published yet.
Alabama Fuel Taxes (2026)
| State Gasoline Tax | 31¢/gal |
| State Diesel Tax | 32.75¢/gal |
| Federal Excise Tax | 18.4¢ gasoline / 24.4¢ diesel |
| Total per Gallon | 49.4¢ gasoline / 57.15¢ diesel |
| How the State Rate Is Built | Gasoline: 30¢ excise tax + 1¢ storage tank trust fund charge. Diesel: 31¢ excise tax + the same 1¢ charge + a 0.75¢ wholesale oil license fee. |
| Next Change | July 1, 2027: new rate not yet published |
Official Sources: