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Oregon IFTA guide
Carriers based in Oregon that run qualified motor vehicles in two or more IFTA jurisdictions get their IFTA license and decals from Oregon Department of Transportation, Commerce and Compliance Division (Oregon IFTA Unit) and file one quarterly fuel tax return there, covering miles and fuel in every member jurisdiction.
Administered byOregon Department of Transportation, Commerce and Compliance Division (Oregon IFTA Unit)
Official IFTA pagewww.oregon.gov/odot/mct/pages/file-tax-reports.aspx
Online filingOregon Trucking Online (TOL)
Quarterly due dates
| Quarter | Period | Return due |
|---|---|---|
| Q3 2026 | Jul 1 – Sep 30, 2026 | Mon, Nov 2, 2026 Oct 31 falls on a Saturday |
| Q4 2026 | Oct 1 – Dec 31, 2026 | Mon, Feb 1, 2027 Jan 31 falls on a Sunday |
| Q1 2027 | Jan 1 – Mar 31, 2027 | Fri, Apr 30, 2027 |
| Q2 2027 | Apr 1 – Jun 30, 2027 | Mon, Aug 2, 2027 Jul 31 falls on a Saturday |
Same for every IFTA jurisdiction. When the last day of the month falls on a weekend or legal holiday, the next business day is the due date. A return is required every quarter, even with zero miles.
Taxes IFTA does not cover in Oregon
- Weight-mile tax on heavy vehicles (Table A covers registered weights 26,001-80,000 lbs; Table B 80,001-105,500 lbs by special permit); carriers enrolled in the weight-mile program can buy fuel in Oregon without paying Oregon fuel tax, or claim a refund on the weight-mile report. Weight-mile structure changes July 1, 2027 under HB 3991.
IFTA basics for Oregon carriers
- You need an IFTA license if your state is your base jurisdiction and you operate a qualified motor vehicle in two or more member jurisdictions: 2 axles over 26,000 lbs, 3 or more axles, or a combination over 26,000 lbs.
- The license is renewed every year and each qualified vehicle carries two decals.
- Late returns: $50 or 10% of delinquent taxes, whichever is greater, plus interest.
- Keep trip records and fuel receipts for 4 years.
- Tax rates change quarterly and are published in the IFTA, Inc. tax rate matrix.
File for every Oregon carrier from one board.
Sources for this page
This summary is for orientation only and is not tax advice. Rules and rates change; always confirm with Oregon Department of Transportation, Commerce and Compliance Division (Oregon IFTA Unit).