Certificates, permits, and licenses
Popular pages
Business licenses
Information about when a King County business license is required and how to apply if you need one.
Permits customer services
Customer support for building, land use, and other permits issued by King County Permits.
Additional links
Application process and fees
Learn about the application process and fees associated with for-hire licenses and permits. If you will drive for a taxi or for-hire company, you will need a license. If you will drive for a transportation network company (TNC), you need a permit.
Business licenses
Information about when a King County business license is required and how to apply if you need one.
For-hire permit and decal display
The for-hire permit and vehicle decal must be visible.
Licensed/registered companies
Look through our list of licensed regional dispatch agencies and transportation network companies (TNCs).
Permits
King County Permits provides land use, building, and fire regulatory and operating permits, code enforcement services, and a limited number of business licenses to the unincorporated areas of King County.
Taxi, For-Hire, and Transportation Network Company (TNC) Licensing
Information about taxi, for-hire, and transportation network company (TNC) licenses, permits, and other resources.