Q3 Oregon Weight-Mile Tax Report: What’s Due by November 30

Q3 Oregon Weight-Mile Tax Report: What’s Due by November 30

Q3 Oregon Weight-Mile Tax Report: What’s Due by November 30 Published on: October 21, 2026
Q3 Oregon Weight-Mile Tax Report: What’s Due by November 30 Category: Blog

Oregon’s Q3 Oregon weight-mile tax report covers operations from July 1 through September 30, 2026, and approved quarterly filers must submit the report and any payment due by November 30, 2026. That deadline does not apply to every carrier operating in Oregon. Carriers must have approved quarterly filing status with the Oregon Department of Transportation’s Commerce and Compliance Division, or CCD. A carrier that normally files monthly cannot simply switch to quarterly reporting because the quarter has ended.

Before filing, carriers should confirm their reporting status, reconcile Oregon mileage, review declared vehicle weights, check the applicable tax rate, and make sure the report is submitted on time. This is also separate from the IFTA Q3 filing schedule. Oregon’s weight-mile tax has its own reporting rules and deadlines.

Who Must File a Q3 Quarterly Weight-Mile Tax Report?

The Q3 deadline applies to carriers that have been approved by Oregon CCD to report and pay weight-mile tax on a quarterly basis. ODOT allows carriers that currently file monthly weight-mile tax reports to apply for quarterly reporting. However, the change is not automatic. The carrier must submit the required application and receive approval before changing its reporting schedule. ODOT’s current application instructions state that a reporting-type change cannot be retroactive. Until the carrier receives written notification showing the approved effective date, it must continue filing under its current reporting schedule. Quarterly reporting begins with the first full calendar quarter following approval. That means simply operating in Oregon during July, August, or September does not make a carrier a quarterly filer. Before preparing an Oregon quarterly weight-mile tax report, check the reporting schedule assigned to the account. If your carrier was still on monthly reporting during Q3, the July, August, and September operations should already have been reported separately under the monthly schedule. If quarterly status was approved before the start of the reporting period, then the July-through-September activity belongs on the Q3 report.

What Is Due by November 30, 2026?

For approved quarterly filers, ODOT lists the third-quarter reporting period as July through September, with the quarterly mileage tax report due November 30. The report and any tax payment due must be submitted on time. ODOT uses two different timeliness rules depending on how the carrier files. For online filing, reports processed through Oregon Trucking Online before midnight on the due date are considered timely. For mailed filings, the report and payment must be postmarked on or before the due date. If a due date falls on a weekend or legal holiday, ODOT moves the deadline to the next business day. For Q3 2026, carriers should plan around the published November 30 deadline rather than waiting until the last minute to reconcile three months of mileage.

This deadline is specifically an Oregon weight-mile tax due date. It should not be confused with the IFTA third-quarter deadline. ODOT separately states that IFTA returns are due on the last day of the month immediately following the end of the reporting quarter, while Oregon’s third-quarter weight-mile tax report is due November 30.

Which Mileage and Vehicle Records Should Carriers Review?

Before filing the quarter, reconcile the report against the records for each vehicle that operated in Oregon. ODOT requires motor carriers to maintain detailed operating records and retain them for three years. Those records must be available for inspection if requested.

For mileage recorded without a vehicle-tracking system, ODOT requires information such as:

  • Origin and destination points
  • Oregon entry and exit points
  • Actual Oregon miles for each trip
  • Oregon pickup and delivery points
  • Routes traveled
  • Trip dates
  • Daily beginning and ending odometer or other mileage-device readings
  • Vehicle identification

GPS or other vehicle-tracking systems can also support the recordkeeping, but ODOT has separate requirements for those records, including location coordinates, timestamps, vehicle mileage readings, and calculated Oregon distance. For Q3 preparation, compare the individual trip records with the totals you intend to report. If July, August, and September records do not reconcile with the quarterly total, investigate the difference before filing rather than assigning mileage arbitrarily. The goal is to support the Oregon taxable miles reported for each vehicle with records that explain where and when the truck operated. Good weight-mile tax records also matter later if the account is selected for audit.

How Do Oregon Weight-Mile Tax Rates Affect the Q3 Amount Due?

The amount due is not based on one universal per-mile rate. Oregon’s weight-mile tax calculation depends on the truck’s taxable Oregon miles and the applicable rate for its declared operating weight. ODOT’s current rate schedule separates vehicles into two main tables. Table A applies to registered or declared weights from 26,001 through 80,000 pounds. Table B applies to qualifying vehicles operating under special permits at gross weights above 80,000 pounds, up to the limits shown in the state table. For Table B operations, ODOT instructs carriers to select the declared-weight group and applicable axle count, convert the listed mill rate to dollars per mile, and multiply that rate by Oregon taxable miles.

The current Oregon weight mile tax rates should therefore be checked against the declared weight of the specific vehicle rather than copied from another truck. One important detail concerns empty returns. ODOT states that for Table B operations, an empty return is taxed at the same declared weight used when the vehicle was loaded. Simply returning empty does not automatically change the declared weight or move the trip to a lower rate. Carriers running different vehicle configurations or declared weights should review those details carefully before calculating the quarterly amount.

How Can Carriers Submit the Report and Payment?

Approved carriers can file electronically through Oregon Trucking Online or use ODOT’s Quarterly Mileage Tax Report. ODOT says registered motor carriers can use Oregon Trucking Online to file highway-use tax reports and make payments electronically. Available payment methods include credit card, ACH, and direct payment from an authorized checking account. For paper filing, ODOT provides the Quarterly Mileage Tax Report, form 9002t. The report generally calls for the carrier and vehicle information needed to calculate the quarter’s tax, including vehicle identification, declared weight, Oregon mileage, applicable rate, tax due, and supported credits where applicable. A paper report should also be properly signed, and any required payment must accompany the filing.

Carriers filing by mail should remember that timeliness is based on the postmark date, while electronic filings must be processed through Oregon Trucking Online before midnight on the due date.

Whether you file an Oregon weight-mile tax report online or by paper, the underlying mileage and weight information should match the carrier’s supporting records.

What If There Were No Oregon Miles or the Report Is Late?

A quarterly reporting obligation does not disappear simply because the carrier had no Oregon activity. ODOT specifically states that tax reports must still be filed when no tax is due, including periods with no Oregon operations. So an approved quarterly filer whose trucks stayed out of Oregon for the entire July-through-September period may still need to submit a zero-mile weight-mile tax report for Q3. Do not skip the report simply because the tax amount is zero. Late filing can create additional consequences. ODOT states that a report filed after the due date with tax due must include a late payment charge equal to 10% of the late tax. The state also warns that failure to file required reports may result in suspension of the carrier’s account.

That distinction matters. The 10% charge is tied to late tax, not described by ODOT as a universal flat penalty on every zero-tax report. But even when no tax is due, failing to submit a required report can still create an account problem.

For carriers approved to report quarterly, the Q3 Oregon weight-mile tax report covers July 1 through September 30, 2026, and is due November 30, 2026.

Before filing:

  • Confirm that the account actually has approved quarterly filing status.
  • Reconcile July, August, and September vehicle and mileage records.
  • Verify Oregon taxable miles for each vehicle.
  • Check the current ODOT rate for the vehicle’s declared weight.
  • Submit the report and any payment by the November 30 deadline.
  • File the required report even if there were no Oregon miles or no tax is due.

Quarterly filing reduces the number of reports a carrier submits during the year, but it also means three months of operations have to be accurate when the filing deadline arrives. A clean Q3 filing starts with organized trip records—not with the tax calculation on November 30.