How is Washington property tax calculated?

Washington uses a levy rate expressed in dollars per 1,000 of assessed value. Multiply your assessed value by the combined levy rate and divide by 1,000. A 500,000 dollar home at a 10 dollar levy rate owes about 5,000 dollars per year.

What is a typical Washington levy rate?

Combined levy rates vary by county and taxing district but commonly fall between 8 and 12 dollars per 1,000 of assessed value. King County and rural counties can sit at different points in that range, so check your assessor statement for the exact figure.

Does Washington have a homestead exemption for property tax?

Washington does not offer a general homestead exemption, but it has a property-tax relief program for low-income seniors, people with disabilities, and disabled veterans that can exempt or freeze part of the assessed value. Enter that exempt value to reflect it.

Is Washington property tax based on market value?

Yes. County assessors value property at 100% of true and fair market value, and the levy rate is applied to that assessed value. Assessments are updated regularly, so a rising market can raise your bill even at a constant rate.

How accurate is this estimate?

It is accurate for the basic levy math, but your real bill can include voter-approved special levies, local improvement district charges, and conservation or fire-district add-ons not captured by a single combined rate.

Washington Property Tax Estimator

Email me this result

Get this tool's output sent to your inbox, plus one useful tool a week. No spam, unsubscribe any time.

Washington funds local government almost entirely through property tax, since there is no state income tax. Your bill is set by a levy rate — dollars charged per $1,000 of your home’s assessed value — applied to the county assessor’s valuation. This estimator turns your assessed value and levy rate into an annual figure, and lets you subtract any senior, disabled or veteran exemption you qualify for.

How it works

Washington property tax follows a simple levy formula:

Taxable value. Start with the assessed market value, then subtract any exempt value from a relief program. The result is your taxable assessed value.
Levy rate. The combined rate for your taxing districts is quoted in dollars per $1,000 of value — typically $8 to $12.
Annual tax. Taxable value ÷ 1,000 × levy rate. So a $500,000 home at a $10 levy rate owes about $5,000 a year.

The tool also shows your effective tax rate as a percentage of the full assessed value.

Tips and example

For a $600,000 home in a district with a $9.50 combined levy rate and no exemption, the annual tax is 600 × $9.50 = $5,700. If you qualify for a senior exemption that removes $100,000 of value, the taxable value drops to $500,000 and the tax falls to about $4,750.

This is an estimate of the regular levy. Voter-approved special levies (schools, fire, EMS, conservation districts) and local improvement charges can be folded into the combined rate or billed separately — check your assessor statement for the exact components of your bill.