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Contact the Assessor's Office

Find important contact information for the Assessors, taxpayer assistance, tax relief, and collection.

General Assessor's information

  • Hours: Monday through Friday 8:30 a.m. to 4:30 p.m.

Other important numbers

Taxpayer assistance

  • Real property information (values, comparable sales, legal descriptions, appraisal help): 206-296-7300
  • Property Tax Advisor: 206-477-1060

Tax relief

Personal property

Tax bill and collection information (Treasury)

King County Recorder's Office

ADA accommodation