What this calculator does
The Seattle property tax calculator applies the actual Seattle method — not a national average — to estimate a yearly bill. King County combines every levy that covers an address into one rate per $1,000 of assessed value; Seattle's has been roughly $8 to $9 in recent years. Washington has no general homestead exemption, though seniors and people with disabilities under income limits can qualify for exemptions.
How to use it
- Use the assessed value and levy rate from King County's property tax statement.
- Tick the exemptions you qualify for.
- Adjust the rate if your bill shows a different one — rates differ by neighborhood and change each year.
- Read the step-by-step table to see how the value becomes a bill.
The formula
King County adds up every levy that covers your address into one rate per $1,000; Washington has no homestead exemption for most owners. Here that works out to an effective rate of 0.85% of the value you entered.
Worked example for Seattle
| Step | Amount |
|---|---|
| Assessed value | $900,000 |
| Senior / disabled exemption (if any) | $0 |
| Taxable value | $900,000 |
| Tax at $8.50 per $1,000 | $7,650 |
| Estimated annual property tax | $7,650 |
Estimated annual property tax: $7,650.
What affects property tax in Seattle
Assessments, rates and exemptions each move the bill. In Seattle, rates are set by the local governments that serve each address, so two homes of the same value in different neighborhoods — for example Capitol Hill, Ballard, Fremont — can pay different amounts.
Seattle property tax at common home values
Washington has no general homestead exemption, so most Seattle owners pay the full levy rate on their assessed value. The table uses this page’s default levy rate; the exemption column applies only to qualifying seniors, people with disabilities and some veterans, who should use the exemption field above with the amount King County approves.
| Assessed value | Yearly tax | Monthly (escrow) | Per $100,000 of value |
|---|---|---|---|
| $500,000 | $4,250 | $354 | $850 |
| $750,000 | $6,375 | $531 | $850 |
| $1,000,000 | $8,500 | $708 | $850 |
| $1,500,000 | $12,750 | $1,063 | $850 |
| $2,000,000 | $17,000 | $1,417 | $850 |
King County mails bills in February, and taxes are usually paid in two halves, in April and October. Levy rates are reset every year as voter-approved levies change, so a bill can rise even when your assessed value does not.
Common mistakes and tips
- Using the listing price when the tax is based on a different assessed value.
- Missing an exemption deadline — most exemptions require an application.
- Assuming the seller's bill will be yours; many places reassess after a sale.
- Not checking the assessment notice for errors in square footage or condition.
Frequently asked questions
How much is property tax in Seattle?
With the default inputs on this page, about $7,650 a year. Here that works out to an effective rate of 0.85% of the value you entered.
Why did my Seattle bill change when my value didn't?
Voter-approved levies and state school levies change the rate each year, even if your assessed value is flat.
Are there exemptions in Seattle?
Washington's senior and disabled person exemption and deferral programs reduce taxes for qualifying owners under income limits.
Is this my exact bill?
No. It estimates the main pieces. Special assessments, penalties and local charges can change the final amount.
Sources
Disclaimer
This calculator provides estimates for educational purposes only and is not financial, tax, legal, real estate, or insurance advice. Consult a licensed professional before making decisions.