Contact for information about assessed values or the assessment process.

If you have questions about your property, you can reach offices in the King County Courthouse and Administration Building by dialing this toll free number: 1-800-325-6165-Ext 67300

Public Information E-MAIL ADDRESS: Assessor.Info@KingCounty.Gov	206-296-7300 TDD 206-296-7888 FAX 206-296-5107
Property Values, Appraisal Help, Comparable Sales, Legal Descriptions	206-296-7300 TDD 206-296-7888
Personal Property (business equipment and furniture affidavits) E-MAIL ADDRESS: Personal.Property@KingCounty.Gov	206-296-5126
Personal Property (mobile homes)	206-296-5126
Personal Property (floating homes)	206-296-5126
Senior Citizen and Disability Exemptions	206-296-3920 TDD 206-296-7889
Senior Citizen and Disability Deferrals	206-296-5151 TDD 206-296-7889
Destroyed Property Exemptions	206-296-5151 TDD 206-296-7889
Home Improvement Exemptions	206-205-0656
Nonprofit Organizations	206-296-5151
Open Space Agriculture & Forest Land	206-296-3969
Public Benefit Rating System &Timber Land	206-205-5170
Historic Property Exemptions	206-296-5145

King County Treasury Operations (Taxes)

Contact for information about taxes and the tax collection process.

Real Property Tax Information	206-296-0923
Customer Service	206-296-3850
Personal Property Tax Information	206-296-4290
Local Improvement District Records	206-296-3913
Property Tax Refunds	206-296-3413
Property Tax Foreclosures	206-296-4184
Real Estate Excise Tax	206-296-1570
Manager's Office	206-296-7326

King County Property Tax Advisor

Contact for advice and assistance regarding property taxes.

Property Valuation Questions and Appeals Counseling

206-296-5202

King County Board of Equalization/appeals

Contact for information regarding appealing an assessment.

Property Valuation Appeals

206-296-3496

King County Records & Elections Division

Contact for information about recorded property documents.

General Information	206-296-1565
Real Estate Excise Tax	206-296-1570
Plats, Condominiums, and Surveys	206-296-1570

Community Service Centers

Contact for information and services these centers provide.

BlackRiver	206-296-7810
Cottage Lake	206-296-2733
Northshore	206-296-9840
Regional Justice Center in Kent	206-205-7330
Sammamish	425-296-0750
Vashon-Maury Island	206-296-4510

Washington State Board of Tax Appeals (external link)

Contact for information about filing an appeal with the State Board.

Property Valuation Appeals (Olympia)

360-753-5449

Washington State Department of Revenue (external)

Contact for information about state guidelines for tax administration.

Tax Information, Toll Free Dialing	1-800-647-7706
Property Tax (Olympia)	360-570-5900

International Association of Assessing Officers (IAAO) (external)

Contact for information about organization's activities and training offerings.

Chicago Office

1-800-616-4226

Appraisal Foundation (external)

Contact for information about organization's activities and training offerings.

Washington D.C. Office

1-202-347-7722