The readjusted fuel excise tax will take effect from 7 August 2025.
Chile’s Ministry of Finance published Executive Decree No. 242 in the Official Gazette on 6 August 2025, revising the components used to calculate the excise tax on fuels, as outlined in Law 18,502 of 1986.
The updated excise tax will take effect starting 7 August 2025.
The adjusted components and the excise tax vary based on the type of fuel, as outlined in the table below:
| Fuel | Base component | Variable component | Excise tax |
| Gasoline 93 Octans (UTM/m3) | 6 | 0 | 6 |
| Gasoline 97 Octans (UTM/m3) | 6 | 0 | 6 |
| Diesel (UTM/m3) | 1.5 | -0.1522 | 1.3478 |
| Liquid petroleum gas | 1.4 | 0 | 1.4 |
| Compressed natural gas | 1.93 | 0 | 1.93 |