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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
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

2017 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
15House Boat Land9-7-2017
160Hotels and Motels8-31-2017
280Major Offices8-17-2017
250Major Retail8-17-2017
700Condominiums (Northeast King County)8-17-2017
700Condominiums (South King County)8-17-2017
12Waterfront: Lake Union to Shilshole Bay8-10-2017
343Golf Courses8-10-2017
700Condominiums (Capitol Hill)7-27-2017
700Condominiums (I-90 Corridor)7-27-2017
700Condominiums (Northwest King County)7-27-2017
520Business Parks7-20-2017
413Fast Food/ Institutional Restaurants7-20-2017
608Mini Storage7-20-2017
174Nursing Homes7-20-2017
153Retirement Homes7-20-2017
700Condominiums (Downtown Seattle)7-20-2017
700Condominiums (Queen Anne/ Magnolia)7-20-2017
700Condominiums (South Seattle)6-29-2017

Residential Area

Area Location Name Mail Date
35North Sammamish Plateau9-14-2017
33Medina/ Clyde Hill/ Hunts Point/ Yarrow Point9-7-2017
47Lake Sammamish9-7-2017
58East Auburn/ SE Kent9-7-2017
67Lake Hills9-7-2017
1West Shoreline8-31-2017
14Leschi/ Madison Park8-31-2017
15Central Area8-31-2017
16West Seattle8-31-2017
38Bothell/ East Kenmore8-31-2017
40Enumclaw Plateau8-31-2017
43Green Lake/ Wallingford8-31-2017
57Black Diamond/ East Maple Valley8-31-2017
60Lake Youngs8-31-2017
70Duvall and Environs8-31-2017
73Kingsgate/ Queensgate8-31-2017
79Beacon Hill8-31-2017
82East Ballard8-31-2017
94Carnation/ Fall City8-31-2017
6Haller Lake/ North Greenwood/ Crown Hill8-24-2017
8Lake City8-24-2017
37Inglewood/ Finn Hill/ Juanita8-24-2017
49Normandy Park8-24-2017
56Maple Valley8-24-2017
93East Kirkland/ Rose Hill8-24-2017
32NE Renton8-17-2017
54Federal Way8-17-2017
59Talbot Hill/ East Kent8-17-2017
72Redmond/ South Woodinville/ Sammamish Valley8-17-2017
96Burien/ SeaTac8-17-2017
7Northgate/ Maple Leaf/ Meadowbrook8-10-2017
25Skyway/ Bryn Mawr8-10-2017
48North Central West Seattle8-10-2017
3East Shoreline8-3-2017
19West Ballard8-3-2017
27West Hill Auburn8-3-2017
61Kent Meridian8-3-2017
81Seward Park/ Mt. Baker8-3-2017
91Sherwood/ Bel-Red/ SW Redmond8-3-2017
69South Sammamish Plateau7-27-2017
13Capitol Hill7-20-2017
45Wedgewood/ Bryant7-20-2017
51Benson Hill/ Panther Lake7-20-2017
85NW Renton Hill7-20-2017
24Riverton Heights/ Tukwila7-13-2017
26Steel Lake/ Star Lake7-13-2017
46Sheridan Beach to Laurelhurst7-13-2017
62Lea Hill7-13-2017
22Rainier Beach6-22-2017
31Somerset/ Eastgate6-22-2017
42Phinney Ridge/ Fremont6-22-2017
63Newport Shores/ Kennydale6-22-2017
71Redmond Ridge & Environs6-22-2017
92NW Bellevue/ Enatai/ Meydenbauer/ Beaux Arts6-22-2017
95East Woodinville/ Bear Creek/ Trilogy6-15-2017
18East West Seattle/ Georgetown/ South Park6-8-2017
23Burien/ White Center6-8-2017
36Woodinville/ Cottage Lake/ Hollywood Hill6-8-2017
75Issaquah Highlands/ Preston/ Snoqualmie Ridge6-8-2017
77High Point/ Highland Park/ Westwood6-8-2017
88Des Moines/ SeaTac/ Kent6-8-2017
87Algona/ Pacific6-1-2017
52Woodmont/ Redondo6-1-2017
68Bridle Trails/ Wilburton/ Central Bellevue6-1-2017
39Broadview/ Blue Ridge/ Shilshole6-1-2017
4Lake Forest Park/ West Kenmore5-25-2017
12Queen Anne5-25-2017
21South Beacon Hill/ Rainier Valley5-25-2017
34Mercer Island5-25-2017
65Issaquah/ Lakemont5-25-2017
66Mirrormont/ Tiger Mountain/ May Valley5-25-2017
80North Bend/ Snoqualmie5-25-2017
90Alpental/ Skykomish5-25-2017
41City of Enumclaw5-18-2017
44Ravenna/ University District5-18-2017
100Vashon Island5-18-2017
2Central Shoreline5-11-2017


  • 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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