Master Business Application

You may use the Master Business Application to:

  • open or reopen a business.
  • add a license to an existing business location.
  • open a new business location.
  • change a business location.
  • apply for a Washington State Unified Business Identifier (UBI) Number or Tax Registration Number.
  • register a trade name.
  • change a trade name.
  • change business ownership.
  • hire employees.
  • get a Minor Work Permit.
  • get some city and state licenses.
  • hire people to work in or around your home.

How to submit a Master Business Application

  1. Fill out the Master Business Application completely and print it on white paper.
  2. Sign and date the application where indicated.
  3. Complete any supplemental forms that apply to your business. To find out which supplemental forms you will need, see the Business Licensing Guide.
  4. Enclose a check made payable to the Washington State Treasurer for the total amount due, including the $15 processing fee. For more information about fees, see the Adobe PDF iconLicense Fee Sheet.
  5. Take your application, supplemental forms, and fees to any business licensing office or mail them to:
    Master License Service
    Department of Licensing
    PO Box 9034
    Olympia, WA 98507-9034

For more information about submitting a Master Business Application, see Frequently asked questions: Business license.

arrow Open the Adobe PDF iconMaster Business Application form.