Mailing addresses and fax numbers for employer taxes
Request relief from benefit charges, a tax-rate recalculation or file an appeal related to your tax rateExperience Rating/Benefit Charging Unit
P.O. Box 9046
Olympia, WA 98507-9046
Submit a check with paper tax forms
Employment Security Department
P.O. Box 34729
Seattle, WA 98124-1729
Submit a check after filing tax reports electronically
Employment Security Department
P.O. Box 34467
Seattle, WA 98124-1467
Submit a check with a billing statement for a past-due account
Employment Security Department
P.O. Box 34949
Seattle, WA 98124-1949
Request information by mail
Experience Rating/Benefits Charging Unit
P.O. Box 9046
Olympia, WA 98507
Fax: 360-902-9202
Connect with Employment Security
