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Contact information for businesses

File quarterly unemployment taxes

Pay quarterly unemployment taxes

  • Online
  • Mail: Employment Security Department, P.O. Box 34467, Seattle, WA 98124

Mail monthly billing statement payments to:
P.O. Box 34949, Seattle, WA 98124-1949

Mail paper tax-filing documents to:
P.O. Box 34729, Seattle, WA 98124-1729

Send certified-mail payments to:
105 14th Ave, Suite 300, Seattle, WA 98122

Get technical support for EAMS, UIFastTax, UIWebTax and ICESA

Automated information about the most-asked unemployment tax questions (available 24/7)

  • 888-836-1900, TTY 800-833-6388

General tax information and forms

For questions regarding benefits claims of your former employees, call 877-504-5607.

Information about your current tax rate and or penalties, call 360-902-9360

Find contact information and help for employers

    Contact us - employers

Sign up for e-mail reminders and information

Information about the federal Work Opportunity Tax Credit

Information for new businesses

Labor statistics

Governor’s Committee on Disability Issues and Employment

Employer assistance to avoid layoffs

  • E-mail
  • 800-752-2500
  • Toll-free fax: 800-701-7754 

Assistance for employers proceding with layoffs

Report a layoff to the Dislocated Worker Unit

  • E-mail
  • 360-902-9767
  • Fax: 360-902-9662 

List job openings / find job candidates through WorkSource

Report tax cheaters

  • Online
  • 866-266-1987, 360-902-9450

Report unemployment benefits cheaters

  • Online
  • 866-266-1987, option 2
  • Fax: 360-407-3377
  • Mail: Office of Special Investigations, P.O. Box 9046, Olympia, WA 98507


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