Business Licenses
The City of Prosser contracts with the State of Washington Department of Revenue Business Licensing Service to provide business licensing services. City Business Licenses are considered endorsements on a business's master state license. To view the BLS webpage and to add your city license endorsements, visit https://dor.wa.gov.
How to Apply
Apply by using one of the following options:
Online: https://dor.wa.gov/city-license-endorsements/prosser
Mail: Business License Application/City Addendum
Business Licensing Service
PO Box 9034
Olympia, WA 98507-9034
Types of Licenses