Property Taxes in Index, Washington
Median Index, Washington effective property tax rate: 0.63%, significantly lower than the national median of 1.02%, and lower than the Washington state median of 0.92%.
Median Index, Washington home value: $333,900
Median annual Index, Washington tax bill: $2,004, lower than the national median property tax bill of $2,400.
How are property taxes in Snohomish calculated?
Property taxes in Index, 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 Index's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Index, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
How Does the Index Property Tax Calculator Work?
Use this Index property tax calculator to estimate your annual tax bill. Enter your property's assessed value and our calculator applies Index's median effective tax rate of 0.63% — based on actual property records in Snohomish County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Index'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 Index: rates range from 2004.00% in 98256 to 2004.00% in 98256, primarily due to differences in school district levies and local assessment districts.
If your estimate is higher than expected, Ownwell can appeal your Index assessment — you only pay if we save you money.
About Index Property Taxes
About Property Taxes in Index, Snohomish, Washington
Index's median effective property tax rate of 0.63% is lower than the Washington state median of 0.92% and lower than the national median of 1.02%. This rate reflects the Snohomish County base levy combined with local school district levies and Local improvement districts (LIDs) that vary by subdivision throughout the city.
Property tax rates are not uniform across Index. Homeowners in the 98256 ZIP code carry a median effective rate of 0.63%, while those in the same ZIP code also pay 0.63%. This spread — 0.00 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Snohomish County. Understanding which part of Index you live in can make a meaningful difference to your annual tax bill.
Index homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before August 26, 2026.
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 Index, Snohomish 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 Index'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 Index Tax Rate
0.63%
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 Snohomish County Tax Rate
0.80%
Median Effective Washington Tax Rate
0.92%
Median Effective United States Tax Rate
1.27%
Property Tax Rates Across Index, Snohomish County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98256 | 0.54% | 0.56% | 0.63% | 0.68% | 1.00% |
Source: Ownwell
Save on Your Property Taxes and More With Ownwell
$774
Average Annual Tax Savings
Property Tax Assessment Values Across Index, Snohomish County, Washington
When examining property taxes in INDEX, 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 Snohomish County assessor 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 Snohomish County, assessment notices are sent in June each year. They'll typically reach your mailbox by the middle of June.
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. For example, the median home price in INDEX is $333,900, with a median tax bill of $2,004. The highest median home price is in 98256 at $333,900.
Property Tax Assessment Values Across Index, Snohomish County, Washington
Source: Ownwell
$333,900
$1,111,050
$1,888,200
Median Index Market Value
$333,900
Median Snohomish County Market Value
$650,900
Median Washington Market Value
$501,600
Median United States Market Value
$274,101
Property Tax Assessment Values Across Index, Snohomish County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98256 | $22,750 | $182,425 | $333,900 | $455,150 | $592,890 |
Source: Ownwell
Save on Your Property Taxes and More With Ownwell
$774
Average Annual Tax Savings
Property Tax Bills Across Index, Snohomish County, Washington
Property tax bills in Index are based on the assessed value of a home and the local tax rate set for Snohomish County. When a property’s market value rises, the tax bill can increase too, which is why homeowners in a higher-value market often see larger bills than the national median property tax bill of $2,400. With a median home price of $333,900, the tax burden can vary widely from home to home.
In Index, the tax bill typically falls between $898 at the 25th percentile and $2,668 at the 75th percentile, with the 90th percentile reaching $3,447. That range shows how much assessed value and local rates can affect what homeowners pay each year.
Ownwell helps homeowners challenge unfair assessments and identify exemptions that may lower their property tax bills. By reviewing your property tax assessment and filing an appeal when appropriate, Ownwell can help you keep more of your money.
Median Index Tax Bill
$2,004
Median Snohomish County Tax Bill
$5,179
Median Washington Tax Bill
$4,512
Median United States Tax Bill
$3,209
Property Tax Bills Across Index, Snohomish County, Washington
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 98256 | $130 | $898 | $2,004 | $2,668 | $3,447 |
Source: Ownwell
Save on Your Property Taxes and More With Ownwell
$774
Average Annual Tax Savings
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | August 25 |
| Tax Bill | |
| Issued | February 10 |
| Due Date #1 | April 30 |
| Due Date #2 | October 31 |
Links | |
|---|---|
| Snohomish Tax Assessor | |
| Phone | (425) 388-3433 |
| Website | wa-snohomish.publicaccessnow.com |
| Contact.Assessor@snoco.org | |