Federal Way, King County, Washington Property Taxes
Property Taxes in Federal Way, Washington
Median Federal Way, Washington effective property tax rate: 1.00%, significantly lower than the national median of 1.02%, and lower than the Washington state median of 0.92%.
Median Federal Way, Washington home value: $542,000
Median annual Federal Way, Washington tax bill: $5,412, $3,012 higher than the national median property tax bill of $2,400.
How are property taxes in King calculated?
Property taxes in Federal Way, Washington are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Federal Way's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Federal Way, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
Federal Way, King County, Washington Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1%
Estimate Property Tax Bill
$5,420
$5,030
$774
Average Annual Tax Savings
How Does the Federal Way Property Tax Calculator Work?
Use this Federal Way property tax calculator to estimate your annual tax bill. Enter your property's assessed value and our calculator applies Federal Way's median effective tax rate of 1.00% — based on actual property records in King County — to generate your estimate.
Enter your property's estimated assessed value — the figure used to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Federal Way's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.
Your bill may vary by ZIP code within Federal Way: rates range from $5,149 in 98003 to $6,165 in 98001, primarily due to differences in school district levies and local assessment districts. Federal Way's median tax bill of $5,412 is higher than the $2,400 national median property tax bill and $3,012 higher than the state median tax bill.
If your estimate is higher than expected, Ownwell can appeal your Federal Way assessment — you only pay if we save you money.
About Federal Way Property Taxes
About Property Taxes in Federal Way, King, Washington
Federal Way's median effective property tax rate of 1.00% is lower than the Washington state median of 0.92% and higher than the national median of 1.02%. This rate reflects the King County base levy combined with local school district levies and local improvement districts that vary by subdivision throughout the city.
Property tax rates are not uniform across Federal Way. Homeowners in the 98003 ZIP code carry a median effective rate of 1.01%, while those in 98001 pay 1.00%. This spread reflects how school district boundaries and local assessment districts are drawn across King County. Understanding which part of Federal Way you live in can make a meaningful difference to your annual tax bill.
Federal Way homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor after the July notice date each year.
If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.
Property Tax Rates Across Federal Way, King County, Washington
As noted earlier, local government entities set tax rates, which can vary widely within a state.
Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.
While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.
Below, you can compare Federal Way's effective property tax rate to other cities in Washington and the median property tax rates in Washington and the U.S.
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Federal Way Tax Rate
1.00%
Our median effective property tax rate (tax bill ÷ assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective King County Tax Rate
0.99%
Median Effective Washington Tax Rate
0.92%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across Federal Way, King County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98001 | 0.97% | 1.00% | 1.00% | 1.00% | 1.01% |
| 98003 | 0.98% | 1.00% | 1.01% | 1.11% | 1.16% |
| 98023 | 0.98% | 0.99% | 1.00% | 1.01% | 1.02% |
Source: Ownwell
$774
Average Annual Tax Savings
Save on Your Property Taxes and More With Ownwell
Property Tax Assessment Values Across Federal Way, King County, Washington
When examining property taxes in Federal Way, Washington, understanding the distinction between "market value" and "assessed value" is crucial.
The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The King County assessment office estimates the market value for tax purposes.
The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
Assessment notices:
In King County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of July.
Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Federal Way.
For example, the median home price in Federal Way is $542,000, with tax bills ranging significantly across the county. 98001 has the highest median home price at $624,000.
Property Tax Assessment Values Across Federal Way, King County, Washington
Source: Ownwell
$275,000
$3,858,750
$7,442,500
Median Federal Way Market Value
$542,000
Median King County Market Value
$774,000
Median Washington Market Value
$501,600
Median United States Market Value
$235,294
Property Tax Assessment Values Across Federal Way, King County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98001 | $495,000 | $570,000 | $624,000 | $696,000 | $742,000 |
| 98003 | $247,000 | $370,000 | $511,000 | $604,000 | $732,000 |
| 98023 | $386,000 | $486,000 | $555,000 | $647,000 | $778,000 |
Source: Ownwell
$774
Average Annual Tax Savings
Save on Your Property Taxes and More With Ownwell
Property Tax Bills Across Federal Way, King County, Washington
Property tax bills in Federal Way are based on the assessed value of a home and the local tax rate set for the area. When a property’s assessed value rises, the tax bill can increase too, which is why homeowners in Federal Way often see changes over time. With a median home price of $542,000, property taxes can be a meaningful part of homeownership costs, especially when compared with the national median property tax rate of 1.02% and the national median property tax bill of $2,400.
In King County, tax bills vary widely across neighborhoods. The median tax bill is $5,149 in zip code 98003 and $6,165 in zip code 98001, while the 25th percentile tax bill is $4,405 and the 90th percentile reaches $7,567. Ownwell helps homeowners challenge unfair assessments and pursue exemptions, which can lower property tax bills and reduce the amount they pay each year.
Median Federal Way Tax Bill
$5,412
Median King County Tax Bill
$7,644
Median Washington Tax Bill
$4,512
Median United States Tax Bill
$2,400
Property Tax Bills Across Federal Way, King County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98001 | $4,358 | $5,578 | $6,165 | $6,919 | $7,414 |
| 98003 | $2,456 | $3,666 | $5,149 | $6,104 | $7,483 |
| 98023 | $3,423 | $4,737 | $5,517 | $6,396 | $7,638 |
Source: Ownwell
$774
Average Annual Tax Savings
Save on Your Property Taxes and More With Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | July 1 |
| Tax Bill | |
| Issued | February 10 |
| Due Date #1 | April 30 |
| Due Date #2 | October 31 |
Links | |
|---|---|
| King Tax Assessor | |
| Phone | (206) 296-7300 |
| Website | blue.kingcounty.com |
| assessor.info@kingcounty.gov | |