Prorate and fuel tax offices

Things to know

Due to facility issues the Prorate and Fuel Tax customer counter in Olympia has moved. You can find us at Black Lake Office #3 (blue-gray building at 2000 4th Avenue W, Olympia WA). The program has limited operations so there may be delays in responding to requests. We apologize for the inconvenience. We are working toward resuming full business operations as soon as possible. Services are still available via Taxpayer Access Point.

Customer service field offices

Olympia

Department of Licensing
405 Black Lake Blvd
Building 2
Olympia, WA 98502
Map and directions

  • Hours: 8:30 a.m. – 4:30 p.m., Monday – Friday

Vancouver

Department of Licensing
1301 NE 136th Ave
Vancouver, WA 98684
Map and directions

  • Phone: 360.260.6396
  • Fax: 360.260.3754
  • Hours: 8:30 a.m.– 4:30 p.m., Monday – Friday

Olympia headquarters

IRP (prorate)

  • Phone: 360.664.1858
  • Fax: 360.570.7829
  • Mail:
    • With payments:
      IRP Unit
      PO Box 3777
      Seattle, WA 98124
    • Without payments:
      IRP Unit
      PO Box 9228
      Olympia, WA 98507-9228

Fuel tax

  • Mail with payments:
    IFTA Unit
    PO Box 3777
    Seattle, WA 98124
  • Mail without payments:
    IFTA Unit
    PO Box 9228
    Olympia, WA 98507-9228
If you need help with Phone Fax
IFTA or dyed diesel user licenses 360.664.1858 360.570.7839
Fuel tax refunds 360.664.1838 360.570.7057
Aircraft distributors, heating oil distributors, motor fuel/special fuel distributors, blenders, exporters, importers, or suppliers 360.664.1852 360.570.7842
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