If you are a trucking company operating out of Washington, USA, you may need to register for an International Fuel Tax Agreement (IFTA) license in the state.

Not based here? Click here to obtain a general guide on how to calculate your IFTA miles & fuel tax.

If you were wondering whether or not you're exempt, know that you must register and file for IFTA if you have:

  • A vehicle with three or more axles
  • A vehicle that exceeds 11,767 kg or 26,000 lbs

Table of Contents

  • How to register for an IFTA license in Washington
  • Washington IFTA License Costs, Fees, and Penalties
  • Washington IFTA License Renewal
  • How to File Washington IFTA
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How to register for an IFTA license in Washington

Washington is your base jurisdiction for IFTA licensing and reporting if you:

  • have qualified motor vehicles registered in Washington that travel on Washington highways
  • have an established place of business in Washington from which motor carrier operations are performed
  • maintain operational control and records for qualified motor vehicles in Washington or can make those records available in Washington.

A motor carrier that enters Washington with a qualified motor vehicle more than five times in a calendar year requires obtaining an IFTA license or interstate trucker license.

You can register an application for Washington Fuel Tax License online at https://wadolprft.gentax.com/TAP/_/

Washington IFTA License Costs, Fees, and Penalties

Cost & Fees

Washington IFTA decals are $10 per set annually.


Failure to file and/or pay your quarterly return by the due date will result in penalties, interest, and a notice of proposed revocation will be issued.

Washington IFTA License Renewal

A renewal application must be completed annually, ideally before November 30.

In order to be compliant with the IFTA Agreement, you must submit and be approved for renewal no later than December 31 prior to the beginning of the renewal calendar year.

Renewal applications can be completed electronically via Washington Taxpayer Access Point (TAP): https://wadolprft.gentax.com/TAP/_/

Important Documents & Online Filing

Certified ELD for Washingon commercial motor vehicles

How to File Washington IFTA

Under IFTA, you are required to file quarterly motor fuel tax reports with your base jurisdiction.

The schedule is as follows:

  • January to March: Due April 30
  • April to June: Due July 31
  • July to September: Due October 31
  • October to December: Due January 31

You can file IFTA quarterly tax reports using the Washington Taxpayer Access Point (TAP): https://wadolprft.gentax.com/TAP/_/

Learn more about Switchboard Mileage Calculator: a free PCMiler alternative to automating IFTA mileage reports

If you need additional help in filing your IFTA, we're happy to help.

Give us a shout at team@onswitchboard.com, and let us guide you and getting your IFTA taken care of.