How Oregon compares
Oregon lists $0.0000 for diesel on the IFTA matrix: it does not collect diesel tax through IFTA, so it is left out of the ranking. Oregon does not collect tax on gasoline through IFTA (the matrix lists $0.0000), so gasoline miles there carry no IFTA tax. Heavy trucks in Oregon pay a weight-mile tax instead, filed separately with Oregon. Miles driven in Oregon still go on your IFTA return, because they count toward your fleet MPG, and fuel bought there earns no IFTA credit. The average diesel rate across the 57 jurisdictions that tax diesel through IFTA is $0.3696; the lowest is Oklahoma at $0.1900 and the highest is California at $0.9790.
Oregon rates by fuel type, 3rd quarter 2026
| Fuel | U.S. $ per gallon | CAD $ per litre |
|---|---|---|
| Diesel | $0.0000 | $0.0000 |
| Gasoline | $0.0000 | $0.0000 |
| Biodiesel | $0.0000 | $0.0000 |
| Gasohol | $0.0000 | $0.0000 |
| E-85 | $0.0000 | $0.0000 |
Propane, LNG, CNG, electricity and hydrogen are measured in different units from one jurisdiction to the next, so they are not listed here; see the official matrix.
Oregon IFTA rate history
| Quarter | Diesel | Gasoline |
|---|---|---|
| 3Q 2026 | $0.0000 | $0.0000 |
| 2Q 2026 | $0.0000 | $0.0000 |
| 1Q 2026 | $0.0000 | $0.0000 |
| 4Q 2025 | $0.0000 | $0.0000 |
| 3Q 2025 | $0.0000 | $0.0000 |
| 2Q 2025 | $0.0000 | $0.0000 |
| 1Q 2025 | $0.0000 | $0.0000 |
When is the 3rd quarter 2026 return due?
IFTA returns for the 3rd quarter 2026 are due November 2, 2026. You file with your base jurisdiction, which pays Oregon its share; miles in Oregon go on that return whether or not you bought fuel there.
Rather not do this every quarter?
We reconcile your fuel receipts and mileage and prepare the quarterly IFTA return for you, next to your driver files and hours of service.
IFTA rates in other jurisdictions
United States
Canada
Rates in U.S. dollars per gallon (and Canadian dollars per litre) from the final IFTA, Inc. tax rate matrix. IFTAX is not affiliated with IFTA, Inc. or any government agency; confirm rates with your base jurisdiction before filing.