2025 IFTA Information (4Q24 Newsletter)
| Filing Period | Quarter Includes | Due Date |
|---|---|---|
| 12/31/2024 | Oct 1 - Dec 31, 2024 | Jan 31, 2024 |
| 3/31/2024 | Jan 1 - Mar 31, 2025 | Apl 30, 2025 |
| 6/30/2025 | Apr 1 - Jun 30, 2025 | Jul 31, 2025 |
| 9/30/2025 | Jul 1 - Sep 30, 2025 | Oct 31, 2025 |
| 12/31/2025 | Oct 1 - Dec 31, 2025 | Feb 02, 2026 |
Not using IFTA in 2025?
To close your account as of December 31, 2024, the unused decals and original license must be returned to:
Mailing Address
Colorado Department of Revenue, Fuel Room 108, P.O. Box 17087, Denver, CO 80217-0087
Unused decals and original licenses may be dropped off at a Department of Revenue service center. For location information, see tax.colorado.gov/visit-a-service-center.
Revenue Online Filers
Visit Colorado.gov/RevenueOnline to file your IFTA return. Fuel tax rates are updated quarterly. Payments have the same due date as the return.
Adding a Vehicle to your IFTA Fleet
There are two ways to request decals for new vehicles added to your IFTA Fleet:
- Carriers who register their vehicle in person through an IRP appointment may request (at that time) to have IFTA decals and licenses issued.
- Contact IRP at 303-205-5608 or through MyDmv.Colorado.gov to schedule an appointment to register.
- After the vehicle is registered with the state, you can send a web message through Revenue Online or email to request another set of decals with a copy of the registration for the new vehicle.