2026 effective rate · 0.84% · below the US average (0.99%)
Washington Property Tax Calculator
Estimate annual and monthly property tax in Washington. The state's effective property tax rate is 0.84% (close to the national average, vs the US average of about 0.99%). On a $520,300 median-value home, that works out to about $4,358 per year or $364 per month.
Washington median home property tax
$4,371 per year
$364 per month at the median home value of $520,300
Effective rate 0.84% times $520,300 = $4,371
Washington property tax at common home values
| Home value | Annual property tax | Monthly | % of value |
|---|---|---|---|
| $150,000 | $1,260 | $105 | 0.84% |
| $250,000 | $2,100 | $175 | 0.84% |
| $350,000 | $2,940 | $245 | 0.84% |
| $500,000 | $4,200 | $350 | 0.84% |
| $520,300 (median) | $4,371 | $364 | 0.84% |
| $750,000 | $6,300 | $525 | 0.84% |
Uses Washington's 2026 effective rate (0.84%). Actual taxes vary by county and exemptions. For full PITI mortgage estimate including taxes + insurance, use the Washington mortgage calculator.
Washington property tax overview
Washington has below-average property tax rates and no state income tax. Senior/disabled exemption with income limits. Property tax levies limited to 1% annual increases.
Washington's effective rate of 0.84% ranks close to the national average nationally. Median annual property tax: $4,358. Median home value: $520,300.
Washington vs neighboring states
FAQs about Washington property tax
What is the property tax rate in Washington?
Washington's effective property tax rate is 0.84% (close to the national average, vs national average of ~0.99%). On a $520,300 median-value home, that's about $4,358 per year, or roughly $364 per month added to your housing cost.
How is property tax calculated in Washington?
Property tax = assessed value times the local mill rate (millage). The effective rate (0.84%) is what you actually pay as a percentage of market value, accounting for assessment ratios, exemptions, and millage. For a home valued at X, multiply X by 0.84% for an annual estimate.
When are property taxes due in Washington?
Property tax due dates vary by county within Washington. Most counties bill annually with either a single payment or two installments. Common payment deadlines fall in late summer (1st half) and late winter (2nd half). Check with your county tax assessor for exact dates and any escrow arrangements through your mortgage lender.
Does Washington have a homestead exemption?
Washington offers various property tax relief programs. Washington has below-average property tax rates and no state income tax. Senior/disabled exemption with income limits. Property tax levies limited to 1% annual increases. Check with your county assessor for primary-residence exemptions and senior or disabled programs that may reduce your annual property tax bill.
How does Washington property tax compare to neighboring states?
Washington's 0.84% rate compares to: Idaho (0.58%), Oregon (0.87%). Property tax burden can vary significantly between neighboring states — moving 30 miles across a state line can change your annual tax bill by thousands.
Can I appeal my property tax assessment in Washington?
Yes. Every US state including Washington provides a formal property tax appeal process. Steps: (1) request your property's assessment record from the county assessor, (2) gather comparable sales from your neighborhood, (3) file a formal appeal within the deadline (usually 30-60 days after assessment notice). Successful appeals typically save 5-15% on annual tax bills.
How can I lower my Washington property taxes?
Common strategies: apply for homestead exemption (primary residence), senior or disabled exemptions if eligible, veteran's exemptions, and appeal over-assessment. Track your county's assessment notices carefully and verify the appraisal matches recent comparable home sales. Avoid major visible upgrades right before reassessment dates.