Indiana IFTA fuel tax rates — 3Q2026
| Fuel | Rate (USD/gal) | Surcharge |
|---|---|---|
| Diesel | $0.6300 | — |
| Propane | — | $0.6300 |
| LNG | $0.6300 | — |
| CNG | $0.6300 | — |
| Ethanol | $0.3700 | — |
| Methanol | $0.3700 | — |
| E-85 | $0.3700 | — |
| M-85 | $0.3700 | — |
| A55 | $0.3700 | — |
| Biodiesel | $0.6300 | — |
| Electricity | $0.0800 | — |
| Hydrogen | $0.0800 | — |
| Hythane | $0.0800 | — |
Indiana charges a surcharge on all taxable gallons used in the jurisdiction, with no credit for fuel purchased there.
The IFTA matrix attaches footnote #31 to Indiana. Read them on the official matrix before filing.
Estimate what you owe: IFTA calculator.
Source: IFTA, Inc. 3Q2026 tax matrix, retrieved 2026-10-27.