Washington Property Tax Calculator 2026

How Washington Property Tax Works

Property tax in Washington is an annual tax levied on real estate by the state and by local governments — counties, cities, school districts and special districts. The amount you owe is your property's assessed value multiplied by the combined levy rate of the districts it sits in. On average, Washington homeowners pay 0.75% of their home's value in property tax each year, 0.19 percentage points below the U.S. figure of 0.94%.

The effective rate combines all local levies: county tax, municipal tax, school district tax, and any special assessments. Because Washington has multiple taxing jurisdictions, your actual rate depends heavily on where in the state your property is located. The 0.75% figure is all real-estate tax paid on owner-occupied homes in Washington divided by their total value, as published in the Tax Foundation's Property Taxes by State and County, 2026 from Census Bureau American Community Survey data for 2020–2024. It is a statewide average — not a rate any single jurisdiction charges, and not your bill.

The Census Bureau puts the median owner-occupied home in Washington at $564,600 and the median real-estate tax bill at $4,556 a year — roughly $380 per month when paid through a mortgage escrow account (American Community Survey, 2020–2024).

Who Collects Property Tax in Washington — and How Rates Are Set

In Washington, property tax is administered by county officials: the county assessor values your property and the county treasurer collects the tax and passes it on to the taxing districts. The Department of Revenue oversees the system but does not collect property tax. State law sets the framework; the state, counties, cities, school districts and special districts each levy within it.

Levy rates (expressed as dollars of tax per $1,000 of assessed value) are worked out each year from each district's budget. Ten mills is 1% of assessed value, which equals 1% of market value only where homes are assessed at full market value. Washington assessors must value property at 100% of its true and fair market value and revalue it every year, so in Washington a levy rate of $10 per $1,000 of assessed value is 1% of market value. If your home's market value rises faster than neighboring properties, your share of the tax burden can increase even if the levy rate stays the same.

To find your exact rate, contact your county assessor's office or check its official website. Your most recent property tax bill will also show the breakdown of all levies applied to your parcel.

Washington's 1% Levy Limit — Why Your Bill Rises Even When Rates Fall

The single most misunderstood thing about Washington property tax is that your bill is not driven by your home's value alone. Under RCW 84.55.010, a taxing district's regular levy — the total dollars it collects — may grow by no more than 1% a year without a vote of the people, plus an allowance for new construction and improvements. Washington is a budget-based system, not a rate-based one: the district decides how many dollars it needs within that limit, then the rate is worked backwards from the total assessed value in the district. A second, separate "1%" also applies: the state constitution caps the combined regular (non-voted) levy rate on any one property at 1% of market value, or $10 per $1,000, and voter-approved special levies come on top of that.

That has a consequence people find counter-intuitive. If every home in your county jumps 20% in value, the county cannot collect 20% more — so the levy rate simply falls and most bills stay roughly flat. What actually raises your bill is your home rising faster than your neighbours', because you then carry a larger share of the same fixed pot. It also explains why voter-approved measures, which sit outside the 1% growth limit — excess levies such as school enrichment levies and bonds, and "lid lifts" that let a district exceed the limit — are a common reason a Washington bill jumps in a given year. Check the levy breakdown printed on your statement, or the Washington Department of Revenue property tax pages, before assuming the assessor is at fault.

Washington Property Tax Exemptions and Relief Programs

Washington has no general homestead exemption; the Department of Revenue's homeowner programs are targeted. The main one is the exemption for senior citizens and people with disabilities: you must own and live in the home and be 61 or older, retired because of disability, or a qualifying disabled veteran, with combined disposable income at or below a threshold set county by county. For taxes payable in 2024 through 2026 the top threshold is the greater of the previous figure or 70% of county median household income; for taxes payable from 2027 it is 80%, and the veteran test drops from an 80% service-connected rating to a combined rating of 40% (RCW 84.36.381 and 84.36.383, as amended in 2025 and 2026). Qualifying owners have their assessed value frozen and are exempt from voter-approved excess levies, with a further cut in regular levies at the two lower income tiers. Owners aged 60 or older can instead defer their taxes at 5% simple interest, and a separate deferral covers the second-half payment for homeowners with combined disposable income of $57,000 or less. Source: Washington Department of Revenue — Property tax exemptions and deferrals.

The qualifying income tiers are published county by county by the Washington Department of Revenue (figures for tax years 2027–2029 are posted), and you apply through your county assessor. Agricultural, timber and open-space land can be assessed on current use rather than market value, though pulling land out of that classification triggers additional tax for up to seven prior years plus interest and, in most cases, a penalty. On appeals, ignore the generic "30 to 90 days" advice you will see on national sites — Washington's deadline is 1 July of the assessment year, or 30 days after your value-change notice was mailed, whichever is later, filed with your county Board of Equalization. A county may extend the 30 days to as many as 60, and some have, so read the date on your own notice rather than assuming.

To apply for any exemption, contact your county assessor. Most exemptions require an annual or one-time application and proof of eligibility (residency, age, disability documentation, etc.).

Deferral vs Exemption — the Washington Program Most Owners Never Hear About

These are two different things and the distinction decides whether you get help at all. An exemption reduces what you owe. A deferral does not reduce anything — the state pays the bill on your behalf and records a lien against the property, repaid with interest when the home is sold, the owner dies or it stops being the owner's primary residence. That makes deferral the fallback for owners who are asset-rich and cash-poor: someone whose income is above the exemption threshold, or who qualifies for the exemption but still cannot cover what remains after it.

Washington runs two deferral programs. The one for senior citizens and people with disabilities (RCW 84.38) is open at age 60, or at any age if you are retired because of disability; its income limit is higher than the exemption's — the greater of the previous year's figure or 75% of county median household income for taxes payable through 2026, and 90% from 2027 — and the lien carries 5% simple interest. The one for homeowners with limited income (RCW 84.37) has no age test: with combined disposable income of $57,000 or less and at least five years of ownership, you can defer the second-half payment due in October, at an interest rate that tracks the federal short-term rate plus two points. Three things to know before applying. Applications go to your county assessor, not the Department of Revenue, and the senior deferral has to be renewed each year. The amount you can defer is capped by your equity — 80% of it in the senior program, 40% in the limited-income one — and a mortgage lender's interest ranks ahead of the state's lien. And deferring is not free money — the accrued interest is real, so it works best as a bridge for a few years rather than an indefinite arrangement. Programme details are published by the Washington Department of Revenue. Households that miss the exemption income test by a small margin should check deferral before assuming nothing applies. Updated October 2026.

Tips to Manage Your Washington Property Tax Bill

First, verify your assessment is accurate. Review your property record card at your county assessor's office and check for errors in square footage, bedroom/bathroom count, or lot size. Even small errors can inflate your assessed value and tax bill. If the assessment seems high, look up recent sale prices of comparable homes in your neighborhood and file an appeal if warranted.

Second, apply for every program you qualify for. Washington has no general homestead exemption, but the senior, disability and disabled-veteran exemption freezes your assessed value and removes whole levies from the bill, and two deferral programs can postpone what is left. Third, if your mortgage servicer handles tax payments through escrow, review your escrow statement annually. Servicers sometimes over-estimate and hold excess funds — you may be entitled to a refund. Finally, Washington property tax is due to the county treasurer by 30 April. If the bill is $50 or more you can pay half by 30 April and the other half by 31 October; treasurers are required to send statements by 15 March (RCW 84.56.020).