Delaware Gas Tax Calculator
2026Delaware charges 23¢ a gallon in state tax on gasoline and 22¢ on diesel in 2026, on top of the federal 18.4¢ and 24.4¢: 41.4¢ and 46.4¢ 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.
Delaware Gas Tax Overview
Delaware’s state tax on gasoline is 23¢ a gallon and 22¢ on diesel. That is the 44th-highest state gasoline tax of the 50 states and DC. Fixed by statute; no automatic adjustment.
With the federal 18.4¢, a gallon of gasoline carries 41.4¢ of per-gallon tax, so a 15-gallon fill-up includes about $6.21 of fuel tax whatever the pump price. Delaware has no sales tax. Petroleum sellers pay gross receipts taxes instead, including a hazardous substance cleanup tax reset each year between 0.675% and 1.675%.
Delaware Fuel Taxes (2026)
| State Gasoline Tax | 23¢/gal |
| State Diesel Tax | 22¢/gal |
| Federal Excise Tax | 18.4¢ gasoline / 24.4¢ diesel |
| Total per Gallon | 41.4¢ gasoline / 46.4¢ diesel |
| Sales and Other Taxes on Fuel | Delaware has no sales tax. Petroleum sellers pay gross receipts taxes instead, including a hazardous substance cleanup tax reset each year between 0.675% and 1.675%. |
| How the State Rate Is Built | A single 23¢ tax on gasoline; diesel pays a 22¢ special fuel tax. |
Official Sources: