Employment Security's office locations
Agency headquartersMailing address
P.O. Box 9046, Olympia, WA 98507
(CUSTOMER SERVICES ARE NOT AVAILABLE AT THIS BUILDING)
212 Maple Park Ave. SE, Olympia, WA 98501-2347
Claims centersPhone number
800-318-6022 (toll free)
Online Web form
Claims centers are call centers and do not have services for walk-in customers.
If you need to use phones or computers to apply for benefits or file a weekly claim, WorkSource offices have phones and computers with internet connection available for use. Find a WorkSource office near you.
Do you have questions about a claim?
Tax centersGo to the tax center Web page.
For tax rate, penalties or benefits claimed by a former employee
Experience Rating/Benefits Charging Unit
P.O. Box 9046
Olympia, WA 98507
888-836-1900, TTY 800-833-6388
Mailing addresses and fax number
Mailing addresses and fax numbers for employers regarding employee-benefit claims
WorkSource officesAddresses and phone numbers
Go to the WorkSource website to find the WorkSource location nearest you.