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How to file the washington business license (state tax registration) (WA)

File online in My DOR, or by mail. It gives the business its UBI number and tax registration, registers trade names and city and state endorsements, and passes your details to Employment Security and Labor and Industries, which open the unemployment insurance and workers' comp accounts.

Washington Department of Revenue, Business Licensing ServiceWAUpdated October 17, 2026

Agency
Washington Department of Revenue, Business Licensing Service
Where it applies
WA
How it's filed
Filed online
Fee
VariesThe application fee varies; endorsement fees are extra.
How long it takes
About 10 business days; city or state endorsements can add another 2 to 3 weeks.
Renewal
Every year, before the date printed on the license, when it carries endorsements.

Official links

Checked against the agency's own page.

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This guide covers the city. Your exact address decides the county, the health district and the zoning. Placetta maps every filing for it, fills the official forms from your details, adds the deadlines and puts them up for your approval.

  • The full list for your address, in filing order
  • The official forms, filled line by line
  • Renewal and inspection reminders

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