Fuel tax

Taxpayer Access Point

File and pay online and manage your IFTA and IRP accounts.

Prorate and Fuel Tax modernization project

Find out about our upcoming new tax filing and online payment system.

Fuel Tax consolidation law

How Substitute House Bill 1883 will simplify fuel tax laws in Washington.

Fuel tax facts

Where fuel tax money goes, and get tribal fuel tax information.

Dyed diesel

The legal and illegal uses for dyed diesel, and how to report violators.

Fuel licenses

How to get a license, file fuel tax returns, and make fuel tax payments.

International Fuel Tax Agreement (IFTA)

Information about IFTA licenses, tax returns, and recordkeeping requirements for carriers who operate in more than 1 state or province.

Audits

Fuel tax and International Registration Plan (IRP) audits.

Fuel tax refunds

Who is eligible and how to apply for a refund.

Prorate and fuel tax offices

Find office locations and who to contact with your fuel tax and prorate questions.

Laws and rules

Prorate and fuel tax laws and rules currently being developed.

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