Property Details
King County median: $850,000
King County average: 0.980%
Washington Property Tax Note
Washington has no state income tax, so local governments rely more heavily on property taxes for revenue. Rates vary significantly between counties and cities.
Your Property Tax Estimate
Annual Tax
$8,330
Monthly Tax
$694
Effective Rate
0.980%
Tax at Different Price Points in King County
| Home Price | Annual Tax | Monthly Tax |
|---|---|---|
| $500,000 | $4,900 | $408 |
| $750,000 | $7,350 | $613 |
| $1,000,000 | $9,800 | $817 |
| $1,500,000 | $14,700 | $1,225 |
| $2,000,000 | $19,600 | $1,633 |
Based on 0.980% effective tax rate for King County.
Impact on Monthly Mortgage Payment
Property taxes are part of your total PITI (Principal, Interest, Taxes, Insurance) payment. Lenders include $694/month in your qualifying debt-to-income ratio.
Monthly Tax Escrow
$694
Annual Tax Bill
$8,330
Calculations are estimates for educational purposes only. Actual property taxes depend on your county assessor's valuation, local bond measures, Mello-Roos districts, and homeowner exemptions. Contact Mo Abdel at (949) 822-9662 for a personalized mortgage analysis. NMLS #1426884 | Lumin Lending NMLS #2716106.
City Tax Estimators in King County
Auburn
Bellevue
Bothell
Burien
Federal Way
Issaquah
Kent
Kirkland
Mercer Island
Redmond
Renton
Sammamish
SeaTac
Seattle
Woodinville
Kenmore
Maple Valley
Covington
Tukwila
Shoreline
Frequently Asked Questions
What is the average property tax rate in King County, Washington?
The average effective property tax rate in King County is 0.98% for 2026. On the median home value of $850,000, that equals approximately $8,330 per year or $694 per month.
How are property taxes calculated in King County?
In King County, Washington, property taxes are based on the assessed market value determined by the county assessor. Rates are set annually by local taxing districts including schools, fire, and utilities. Washington has no state income tax, so property taxes fund a larger share of local services.
What is Mello-Roos and does it affect King County property taxes?
Mello-Roos is a California-specific special tax district and does not apply in King County, Washington. However, Washington has similar special purpose levies for schools, fire districts, and utility infrastructure that are included in your property tax bill.
How do property taxes affect my mortgage payment in King County?
Property taxes are included in your monthly PITI payment (Principal, Interest, Taxes, Insurance). In King County, the estimated $694/month tax escrow on a median-priced home is factored into your debt-to-income ratio by lenders. This directly affects how much home you qualify for.
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