Mailing Address: P.O. Box 17087, Room108, Denver, CO 80217-0087
2027 IFTA Renewal Information (3Q26 Newsletter)
2027 Renewal Process:
- IFTA credentials are for a calendar year, unlike IRP, which can expire at different times.
- The IFTA renewal season begins December 1st. Accounts are reviewed in no particular order, and licenses and decals are mailed weekly via USPS to accounts in good standing.
- IRP-registered vehicles are issued one set of decals each. If you need another set of decals, you may request them when registering a new vehicle for IRP or via a web message through Revenue Online. IFTA accounts will receive an “Action Required for IFTA Renewal” letter if additional information is required for their renewal.
Renewal Requirements
- Carriers must meet Colorado Base Jurisdiction requirements to be renewed. See tax.colorado.gov/IFTA-Colorado-Qualifications for more information.
- Accounts must have a Colorado mailing address and be in good standing (i.e., no missing returns, outstanding balances, etc., through 3Q26).
- Accounts with three-quarters of Colorado-only or no activity will not be renewed.
Submitting Additional Information
If more documents are required (e.g., DR7511, IFTA Lease Agreement Certificate with current registrations, county registrations, etc.), to prevent delays, submit these documents by November 15th in Revenue Online and indicate they are for the 2027 license.
Verify Your Mailing Address
Your mailing address must be current to receive information, including your license and decals.
Important Dates & Timeline
- Early October 2026: The IFTA Renewal Letter allows you to opt out of the 2027 IFTA license renewal. To close your IFTA account effective December 31, 2026, sign and return it by October 31st or send a message via Revenue Online.
- November & December 2026: If you receive an "Action Required for IFTA Renewal" letter, you must resolve the issue before the Department can issue your 2027 credentials.
- December 2026:
- Allow two weeks for the Department to process paper returns and payments.
- Electronic payments and returns take up to one week to process.
- Accounts In Good Standing By December 18th: No further action is required by you.
- Accounts In Good Standing After December 18th: You must send a web message confirming you want to receive the 2027 license.
- January 2027: If you have not received your IFTA credentials or a letter by January 15, 2027, and you intend to operate as an IFTA carrier in 2027, review your account online to check if a letter was issued and that your account is in good standing, including a valid mailing address. Contact the Fuel Tax Unit for questions.
- February 28, 2027: Deadline to obtain and display the 2027 decals on your vehicle(s).
To avoid disruption in your operations, stay informed and meet all deadlines. For questions, contact the Fuel Unit via RevenueOnline or 303-205-8205, option 1.
To avoid disruption in your operations, stay informed and meet all deadlines. For questions, contact the Fuel Unit via RevenueOnline or 303-205-8205, option 1