Fuel tax facts

Where fuel tax money goes

All fuel taxes collected are placed in the Motor Vehicle Fund. The Motor Vehicle Fund is used to support highway programs including:

  • Constructing and maintaining state, city, and county roads, bridges, and ferries.
  • Purchasing rights of way.
  • Installing, maintaining, and operating traffic and signal lights.
  • Policing state public highways.
  • Operating movable span bridges.

Tribal fuel tax information

Fuel tax evasion

Fuel tax evasion is a crime. Fuel tax evasion includes:

  • the use of red-dyed diesel fuel in licensed vehicles.
  • importing fuel into Washington without a Washington State fuel license.
  • manufacturing biodiesel for sale without a license.

How to report suspected fuel tax evasion

Contact the Washington State Patrol/Department of Licensing Evasion Unit task force by:

  • Phone: 1-800-497-FUEL (1-800-497-3835).
  • Email: evasion@dol.wa.gov.
  • Mail:
    Fuel Tax Investigations Unit
    Department of Licensing
    PO Box 9228
    Olympia, WA 98507-9228

You may remain anonymous. If you leave your name and phone number, a task force member will call you back. All information given will be investigated and remain confidential.

Where to find information about fuel tax evaders

Please see Disciplinary actions: Dyed diesel violators to see a list of fuel tax violators and the fines they paid.