Washington State Department of Revenue – Business Licensing Service


As Washington State’s principal tax collection agency, the Department of Revenue oversees about 60 different taxes. It collects more than 90 percent of state General Fund tax revenues and all local sales tax revenues. The Department of Revenue processes approximately 2.5 million tax returns annually.

Businesses constitute the largest group paying state taxes, with more than 480,000 businesses currently filing tax returns on a monthly, quarterly, or annual basis. Nearly 335,000 other small businesses are registered with the Department, but they have no tax liability and are not required to file tax returns.

Key functions include:

The Department of Revenue also administers other programs, such as those affecting timber, cigarette, real estate, leasehold, and estate taxes.

Contact Information:

Address: 6500 Linderson Way SW Ste 102, Tumwater WA 98501
Phone: 360-705-6741
Fax: 360-705-6699
E-mail: bls@dor.wa.gov

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