Colorado IFTA Calculator
Colorado IFTA fuel tax rates, Q3 2026
| Fuel type | Rate per gallon | Change from last quarter |
|---|---|---|
| Diesel | $0.3350 | +$0.0100 |
| Gasoline | $0.2800 | +$0.0100 |
| Propane (LPG) | $0.1350 | No change |
| LNG | $0.1200 | No change |
| CNG | $0.1830 | No change |
| Biodiesel | $0.3350 | +$0.0100 |
- Diesel rate rank among IFTA jurisdictions
- 27 of 57
- Administered by
- Colorado Department of Revenue
- State agency IFTA page
- tax.colorado.gov
Calculate your Colorado IFTA tax
Return due Nov 2, 2026
The state that issued your IFTA license. It appears on your worksheet.
- Total miles
- 0
- 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 |
Diesel rate by quarter
| Quarter | Rate per gallon |
|---|---|
| Q3 2026 | $0.3350 |
| Q2 2026 | $0.3250 |
Calculate by state
- Alabama
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming