IFTA tax returns

How to file a return

You must submit your return even if no payment is due.

  1. Complete an International Fuel Tax Agreement Tax Return form.
    • Remember to sign and date your return.
    • When you’re done, send it to us as described in Step 2.
    or
    Use the online system to complete a return.
    • Before you can use the online system, you’ll need to apply for access by sending us all of the following:
    • After we process your application, we’ll send you a password and instructions on how to access and use the online system.
    • Once you get your password, you can fill out your return online. The system will complete all the calculations to determine your tax liability or credit.
    • When you’re done, print a copy of the return, sign it, and send it to us as described below.
  2. Send us your completed return:
    • If you’re including a payment, mail your completed return and a check to:
      Prorate and Fuel Tax
      Department of Licensing
      PO Box 3777
      Seattle, WA 98124-3777
    • If you’re sending only your return (without a payment), mail or fax it to:
      • Mail:
        Fuel Tax Section
        Department of Licensing
        PO Box 9228
        Olympia, WA 98507-9228
      • Fax: 360-570-7839 or 360-586-9729

For more information about completing your return, see IFTA Tax Return Information and Instructions.

How to request copies of your return

To get copies of IFTA tax returns you’ve submitted:

  1. Complete an IFTA Information Release Request.
    • Service bureaus: Provide a copy of the Power of Attorney signed by your client along with the completed form.
  2. Send us the completed form and any necessary supporting documents:
  3. We’ll send you the information within 5 business days.

How to get the tax rate schedule

To get a copy of the IFTA tax rate schedule for all states:

Note: Please allow 5 business days for us to process your request.

 

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