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Employer taxes - Fax number and mailing addresses

Fax number

Experience Rating/Benefit Charging Unit
Fax: 360-902-9202

Mailing addresses

Request information, relief from benefit charges, a tax-rate recalculation or file an appeal related to your tax rate
Experience 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

Connect with Employment Security
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