Colorado IFTA Calculator
Colorado IFTA fuel tax rates, Q3 2026
| Fuel type | Rate per gallon | Change from last quarter |
|---|---|---|
| Diesel | $0.3350 | — |
| Gasoline | $0.2800 | — |
| Propane (LPG) | $0.1350 | — |
| LNG | $0.1200 | — |
| CNG | $0.1830 | — |
| Biodiesel | $0.3350 | — |
- Diesel rate rank among IFTA jurisdictions
- 27 of 57
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Calculate your Colorado IFTA tax
Return due Nov 2, 2026
The state that issued your IFTA license. It appears on your worksheet.
- Total miles
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- Total gallons
- 0
- Fleet MPG
- —
Diesel tax in neighboring jurisdictions
| Jurisdiction | Effective rate per gallon | Compared with here |
|---|---|---|
| Kansas (KS) | $0.2600 | -$0.0750 |
| Nebraska (NE) | $0.3180 | -$0.0170 |
| New Mexico (NM) | $0.2100 | -$0.1250 |
| Oklahoma (OK) | $0.1900 | -$0.1450 |
| Utah (UT) | $0.3790 | +$0.0440 |
| Wyoming (WY) | $0.2400 | -$0.0950 |
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