# Colorado state diesel taxes

Colorado: state excise plus other state taxes and fees on diesel, cents per gallon, in effect each January 1 and July 1; before federal (18.4 / 24.4 cents) and county or city taxes. EIA, Federal and state motor fuels taxes.
- Series code: `FUELTAX_CO_DIESEL`
- Units: ¢/gal · frequency: semiannual
- Latest: **35.68 ¢/gal** (2026-07-01)
- History: 2015-01-01 to 2026-07-01, 24 observations
- Change over 1 week: +1.00 (+2.9%)
- Change over 1 month: +1.00 (+2.9%)
- Change over 1 year: +1.00 (+2.9%)
- Change over 5 years: +13.61 (+61.7%)
- 52-week range: 34.68 (2026-01-01) – 35.68 (2026-07-01)
- Latest value is higher than 100% of the full history

## Recent observations

| Date | Value |
|---|---|
| 2026-07-01 | 35.68 |
| 2026-01-01 | 34.68 |
| 2025-07-01 | 34.68 |
| 2025-01-01 | 30.68 |
| 2024-07-01 | 30.68 |
| 2024-01-01 | 28.05 |
| 2023-07-01 | 27.44 |
| 2023-01-01 | 23.75 |
| 2022-07-01 | 23.75 |
| 2022-01-01 | 22.06 |
| 2021-07-01 | 22.06 |
| 2021-01-01 | 22.06 |

Source: U.S. Energy Information Administration. Public domain (U.S. government work).
Page: https://thinkingonenergy.com/data/FUELTAX_CO_DIESEL/