WA State Licensing: Kelso city business license

City of Kelso license

Who needs a license?

Kelso requires all businesses to be licensed with the city if they are:

  • Located within city limits, or
  • Conducting business within city limits.

If you do not know if you do business within city limits, call (360) 423-0900 before applying. If more than one business is located in a single property, you must complete a separate application for each business conducted.

Home businesses

Before a business license is issued, a business owner who intends to conduct business from a residence within the city must undergo a city of Kelso Planning/Building Department zoning review as required by Kelso Municipal Code 5.02.

How to apply

Apply by using one of the following options:

  • Online with My DOR. My DOR works best with Mozilla Firefox or Google Chrome.

  • If you do not have an existing business

    • Click File New Business License Application. Be sure to select the endorsements for which you wish to apply.

    If you have an existing business

      1. If you haven’t already, add access to your business. You’ll need a UBI number and letter ID.
      2. Click on the business you want to apply for a license/endorsement under, then click on the location.
      3. Click File New Business License Application.

    You can pay using an E-check or a major credit card (gift cards can’t be used).

    Find more help for using My DOR, including video tutorials.



City license Fee
Kelso general business license $50
Kelso general business license - Non-resident $50
Kelso home occupation businesses $50
Kelso nonprofit business license* No fee
Other fees that may apply Fee
State tax registration No fee
Registering a trade name $5
Business License Application fee $19 (non-refundable)

Contact information

State of Washington
Business Licensing Service
PO Box 9034
Olympia, WA 98507-9034

Phone: 1-800-451-7985
Email: BLS@dor.wa.gov
Fax: 360-705-6699

Office hours

Monday through Friday
8 a.m. to 5 p.m.

Mailing information

Please remember to enclose all necessary documents and fees with your completed application. Incomplete submissions will result in a delay in your licensure.


It is important that you contact our office, in writing, with any changes in address.

Regulatory questions

City of Kelso - Finance Dept
Phone: 360-423-0900
Fax: 360-425-9807