Filing Forms
- DR 0122 (2021 and later) - International Fuel Tax Agreement Tax Report
- DR 0122 (2017-2020) - International Fuel Tax Agreement Tax Report
- DR 0125 - Renewal Application for International Fuel Tax Agreement License
- DR 0300 - Colorado Mileage and Fuel Tax Bond
- DR 0734 - Monthly Fleet Mileage and Fuel Summary
- DR 0735 - Individual Vehicle Distance Record and Fuel Report
- DR 7053 - Request for Replacement IFTA Decals
- DR 7119 - IFTA Registration Application
- DR 7511 - IFTA Lease Agreement Certificate
Helpful Forms
- DR 0145 - Tax Information Designation and Power of Attorney for Representation
- DR 1102 - Address or Name Change Form
- DR 1108 - Business Tax Account Closure Form
- DR 5714 - Request for Copy of Tax Returns
- DR 5782 - Electronic Funds Transfer (EFT) Program Information
- DR 5785 - Electronic Funds Transfer (EFT) Account Setup for Tax Payments
Fillable PDFs are made available for your convenience and must be printed prior to closing the document, as changes will not be saved. This page lists the most current version of each form. If you are looking for a prior version, please email DOR_FuelTax@state.co.us.
Annual Colorado Diesel and Biodiesel Fuel Rate Increases
| Effective Date | Special Fuel Tax | Road Usage Fee (RUF) | Bridge and Tunnel Fee (BTI) | Total Tax Per Gallon* |
| July 2022 through March 2023 | $.205 | $0.00 | $0.02 | $0.225 |
| April 2023 through June 2023 | $.205 | $0.02 | $0.02 | $0.245 |
| July 2023 through June 2024 | $0.205 | $0.03 | $0.03 | $0.265 |
| July 2024 through June 2025 | $0.205 | $0.04 | $0.04 |
$0.285 |
| July 2025 through June 2026 | $0.205 | $0.05 | $0.05 | $0.305 |
| July 2026 through June 2027 | $0.205 | $0.06 | $0.06 | $0.325 |
| July 2027 through June 2028 | $0.205 | $0.07 | $0.07 | $0.345 |
| July 2028 through June 2032 | $0.205 | $0.08 | $0.08 | $0.365 |
*Total tax, including fees, per gallon on diesel and biodiesel.
Annual Colorado Gasoline, Gasohol, Ethanol, Methanol, E-85, M-85 and A55 Fuel Rate Increases
| Effective Date | Gasoline Fuel Tax | Road Usage Fee (RUF) | Total Tax Per Gallon* |
| March 31, 2023 and prior | $0.22 | $0.00 | $0.220 |
| April 1, 2023 through June 2023 | $0.22 | $0.02 | $0.240 |
| July 1, 2023 through June 2024 | $0.22 | $0.03 | $0.250 |
| July 1, 2024 through June 2025 | $0.22 | $0.04 | $0.260 |
| July 1, 2025 through June 2026 | $0.22 | $0.05 | $0.270 |
| July 1, 2026 through June 2027 | $0.22 | $0.06 | $0.280 |
| July 1, 2027 through June 2028 | $0.22 | $0.07 | $0.290 |
| July1, 2028 through June 2032 | $0.22 | $0.08 | $0.300 |
*Total tax, including fees, per gallon on gasoline, gasohol, ethanol, methanol, E-85, M-85 and A55.