King County Senior Property Tax Exemption Income Limit
King County, WA: King County homeowners age 61 or older (or disabled) with combined disposable household income of $84,000 or less (including Social Security) qualify to freeze their home's taxable value and exempt 100% of excess voter-approved levies and Part 2 of the state school levy.
Washington Senior & Disabled Property Tax Exemption (RCW 84.36.381) in King County
| Who qualifies | Age 61+ by December 31 of the application year (or retired due to disability / 80%+ disabled veteran); own and occupy as primary residence |
|---|---|
| Income limit | $84,000 maximum combined disposable household income (includes Social Security, pensions, and capital gains; deducts out-of-pocket medical/prescription costs) |
| Benefit | Freezes taxable value + exempts 100% of excess levies and Part 2 state school levy + exempts 35% to 60% ($50,000–$60,000 min) of regular levies by income tier |
| Deadline | December 31 (retroactive refunds available up to 3 prior years) |
| Where to apply | King County Department of Assessments online Senior Exemption Portal (senior-exemption.kingcounty.gov) |
Official King County page: https://kingcounty.gov/en/dept/assessor/buildings-and-property/property-taxes/tax-relief/senior-or-disabled-exemptions
Common questions
What is the income limit for the King County senior property tax exemption?
For King County, maximum combined disposable household income is $84,000 per year, including Social Security benefits.
What age qualifies for the King County senior exemption?
You must be at least 61 years old by December 31 of the year you apply (reduced from age 62 under RCW 84.36.381).
Can I deduct medical expenses from my income to qualify?
Yes. Washington RCW 84.36.383 allows you to deduct non-reimbursed prescription drugs, Medicare Part B/D premiums, in-home care, and nursing home expenses from disposable income.
Where do I apply in King County?
Apply online through the King County Assessor Senior Exemption Portal at senior-exemption.kingcounty.gov or submit DOR Form 64 0002.
Related
- King County, WA property tax rate
- WA property tax overview
- Snohomish County Senior Property Tax Exemption
Last reviewed October 31, 2026. Figures come from the official sources linked above for the tax year shown. Rules and amounts change each year; confirm your eligibility with the King County assessor or tax office before you apply. This page is general information, not tax or legal advice.