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2018 Taxes

2018 Taxes

Release Date: February 13, 2018

2018 Property Taxes

Property tax bills coming: increases will fund education, fire protection, and veteran and senior services


Property taxes across King County will increase about 17 percent on average this year, primarily due to additional taxes passed by the Legislature to increase funding for K-12 education. About 57 percent of property tax revenues collected in King County pays for schools. Property taxes also fund voter-approved measures for veterans and seniors, fire protection, and parks among other services.


King County Treasury will begin sending out the annual property tax bills in mid February. King County collects property taxes on behalf of the state, the county, cities, and taxing districts (such as school and fire districts), and distributes the revenue to these local governments.
Voters have approved several property-tax increases that will make much-needed investments in veterans and senior citizen services, fire protection, and parks. In some parts of King County, as much as 50 percent of the property tax bill is the result of voter-approved measures.

New levies approved in 2017 for collection this year include:

  • Fire protection levies in Maple Valley, Vashon, and Skyway.
  • School bonds for Shoreline and Federal Way.
  • Renewal of the Veterans, Seniors and Human Services levy in King County.

In addition to approved local measures, the Washington State legislature passed an additional property tax to increase funding of education. Previously, the State Supreme Court ruled that the state must make new investments into public education; as a result the legislature added $1.01 per thousand dollars of assessed value, in King County, to their portion of property tax collection in order to fund the mandate (this is known as the McCleary Plan).

“Communities in our region are thankful to voters for approving new funding for essential services, but we know that property taxes can be especially tough for those on fixed incomes,” said King County Assessor John Wilson. “That’s why we’ve been aggressively reaching out to seniors, veterans and disabled homeowners with the property tax exemption program. Additionally, I’ve been working with Executive Constantine to create more tools for transparency around property taxes,” Wilson continued.

Low-income seniors, veterans and disabled homeowners may qualify for a property-tax exemption offered by King County. Information on how to apply for an exemption, along with other property-assessment-related information, can be found at Property taxes vary depending upon location, the assessed value of the property, and the number of jurisdictions levying taxes (such as state, city, county, school district, port, fire district, etc).

With property taxes going up 16.92 percent on average, that means countywide property tax billings will be $5.6 billion in 2018, up from $ 4.8 billion last year. Aggregate property values in King County increased by 13.41 percent, going from $471.5 billion in 2017 to $534.7 billion in 2018.

“Without doubt voters are going to see a property tax increase due to the funding model the legislature has passed to fund education. So at a local level we are building more tools and supporting more legislation to increase transparency and fairness around the property tax. It is a work in progress and we will continue working on behalf of King County taxpayers,” said Wilson.

To avoid interest and penalties, the first half property taxes must be paid or postmarked by April 30, 2018. The second half property taxes must be paid or postmarked by Oct. 31, 2018.

Property Search

Assessor eReal Property Search

View valuations, property characteristics, levy rates, and sale history

Contact us
General Info: 206-296-7300
TTY: 1-800-833-6388
Senior Exemptions: 206.296.3920

Tax Advisor Office

King County Tax Advisor

Provide advice and assistance on property tax related matters including appeals

Contact us
Telephone: 206-477-1060
Toll Free: 1-800-325-6165 ext. 7-1060
TTY Relay: 711
Fax: 206-296-0948

Your tax dollars at work.

Pay your property taxes

First half of 2018 property taxes are due April 30th

Contact us
Property Tax Hotline: 206-263-2890
Foreclosure: 206-263-2649
Email: PropertyTax.CustomerService

500 4th Avenue RM 600 Seattle, WA 98104

Where Do Your Property Tax Dollars Go?

2018 Property Taxes Pie Chart

A day in the life of a King County Appraiser

Tax Advisor Office
How King County's revenue falls behind even as property taxes go up

2018 Area Reports: The King County Department of Assessments annually revalues 700,000 parcels.

Area Reports are provided between June and October. The following files are in .PDF format, and are all roughly 250 KB to 3,000 KB in size. You will need a copy of PDF reader to view these files. For more information visit Software help.

Commercial Specialty Area

Area Location Name Mail Date
413Fast Food/ Institutional Restaurants8-23-2018
160Hotels and Motels8-23-2018
280Major Offices8-23-2018
250Major Retail8-23-2018
700Condominiums (Queen Anne/ Magnolia)8-23-2018
700Condominiums (Northeast King County)8-23-2018
700Condominiums (South King County)8-23-2018
700Condominiums (South Seattle)8-23-2018
700Condominiums (Northwest King County)8-23-2018
343Golf Courses7-26-2018
510High Tech7-26-2018
520Business Parks7-26-2018
12Waterfront: Lake Union to Shilshole Bay7-26-2018
608Mini Storage7-26-2018
174Nursing Homes7-26-2018
153Retirement Homes7-26-2018
700Condominiums (Downtown Seattle)7-19-2018
700Condominiums (I-90 Corridor)7-19-2018

Residential Area

Area Location Name Mail Date
68Bridle Trails/ Wilburton/ Central Bellevue09-27-2018
3East Shoreline09-20-2018
56Maple Valley09-20-2018
47Lake Sammamish09-13-2018
60Lake Youngs09-13-2018
32NE Renton09-06-2018
48North Central West Seattle09-06-2018
67Lake Hills09-06-2018
77High Point/ Highland Park/ Westwood09-06-2018
79Beacon Hill09-06-2018
81Seward Park/ Mt. Baker09-06-2018
82East Ballard09-06-2018
91Sherwood/ Bel-Red/ SW Redmond09-06-2018
13Capitol Hill08-30-2018
16West Seattle08-30-2018
18East West Seattle/ Georgetown/ South Park08-30-2018
21South Beacon Hill/ Rainier Valley08-30-2018
23Burien/ White Center08-30-2018
38Bothell/ East Kenmore08-30-2018
100Vashon Island08-16-2018
22Rainier Beach08-16-2018
24Riverton Heights/ Tukwila08-16-2018
34Mercer Island08-16-2018
35North Sammamish Plateau08-16-2018
37Inglewood/ Finn Hill/ Juanita08-16-2018
58East Auburn/ SE Kent08-16-2018
66Mirrormont/ Tiger Mountain/ May Valley08-16-2018
7Northgate/ Maple Leaf/ Meadowbrook08-16-2018
8Lake City08-16-2018
19West Ballard08-09-2018
25Skyway/ Bryn Mawr08-09-2018
31Somerset/ Eastgate08-09-2018
42Phinney Ridge/ Fremont08-09-2018
59Talbot Hill/ East Kent08-09-2018
73Kingsgate/ Queensgate08-09-2018
6Haller Lake/ North Greenwood/ Crown Hill07-19-2018
71Redmond Ridge & Environs07-19-2018
88Des Moines/ SeaTac/ Kent07-19-2018
75Issaquah Highlands/ Preston/ Snoqualmie Ridge07-12-2018
87Algona/ Pacific07-12-2018
43Green Lake/ Wallingford07-05-2018
65Issaquah/ Lakemont07-05-2018
85NW Renton Hill07-05-2018
92NW Bellevue/ Enatai/ Meydenbauer/ Beaux Arts07-05-2018
94Carnation/ Fall City07-05-2018
96Burien/ SeaTac07-05-2018
15Central Area06-28-2018
72Redmond/ South Woodinville/ Sammamish Valley06-28-2018
80North Bend/ Snoqualmie06-28-2018
90Alpental/ Skykomish06-28-2018
1West Shoreline06-21-2018
14Leschi/ Madison Park06-21-2018
52Woodmont/ Redondo06-21-2018
63Newport Shores/ Kennydale06-21-2018
95East Woodinville/ Bear Creek/ Trilogy06-21-2018
12Queen Anne06-14-2018
33Medina/ Clyde Hill/ Hunts Point/ Yarrow Point06-14-2018
61Kent Meridian06-14-2018
62Lea Hill06-14-2018
69South Sammamish Plateau06-14-2018
70Duvall and Environs06-14-2018
36Woodinville/ Cottage Lake/ Hollywood Hill06-07-2018
39Broadview/ Blue Ridge/ Shilshole06-07-2018
40Enumclaw Plateau06-07-2018
41City of Enumclaw06-07-2018
45Wedgwood/ Bryant06-07-2018
49Normandy Park06-07-2018
51Benson Hill/ Panther Lake06-07-2018
54Federal Way06-07-2018
57Black Diamond/ East Maple Valley06-07-2018
26Steel Lake/ Star Lake05-31-2018
27West Hill Auburn05-31-2018
2Central Shoreline05-24-2018
4Lake Forest Park/ West Kenmore05-17-2018


  • April 30th First half of property taxes due
    (If taxes are less than $50, full payment is due.)
  • April 30th Personal property listing forms due
  • June 1 Three percent penalty assessed on delinquent taxes
  • July 1 Appeals to the County Board of Equalization must be filed by July 1 or within
    60 days of notification.
  • Sept. 1 Applications for limited income
    deferrals due
  • Oct. 31 Second half of property taxes due
  • Dec. 1 Eight percent penalty assessed on delinquent taxes
  • Full 2018 Property Tax Calendar (.PDF, External link)


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