Soap Lake, Grant County, Washington Property Taxes

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Property Taxes in Soap Lake, Washington

Median Soap Lake, Washington effective property tax rate: 0.97%, significantly lower than the national median of 1.02%, and lower than the Washington state median of 0.92%.
Median Soap Lake, Washington home value: $100,789
Median annual Soap Lake, Washington tax bill: $796, lower than the national median property tax bill of $2,400.

How are property taxes in Grant calculated?

Property taxes in Soap Lake, 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 Soap Lake's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Soap Lake, knowing local tax details benefits homeowners and investors.

Last Updated April 13, 2026

Soap Lake, Grant County, Washington Property Tax Bill Calculator

Property Assessed Value

$100,000

$1,500,000

$3,000,000

Median Effective Tax Rate

0.97%

Estimate Property Tax Bill

$978

$907

How Does the Soap Lake Property Tax Calculator Work?

Use this Soap Lake property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Soap Lake's median effective tax rate of 0.97% — based on actual property records in Grant 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 Soap Lake'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 Soap Lake: rates range from 0.97% in 98851 to 0.97% in 98851, primarily due to differences in school district levies and local assessment districts.

For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Soap Lake.

About Soap Lake Property Taxes

About Property Taxes in Soap Lake, Grant, Washington

Soap Lake's median effective property tax rate of 0.97% is lower than the Washington state median of 0.92% and lower than the national median of 1.02%. This rate reflects the Grant 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 Soap Lake. Homeowners in the 98851 ZIP code carry a median effective rate of 0.97%, while those in 98851 pay 0.97%. This spread — 0.00 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Grant County. Understanding which part of Soap Lake you live in can make a meaningful difference to your annual tax bill.

Soap Lake homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before July 1, 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 Soap Lake, Grant 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 Soap Lake's effective property tax rate to other cities in Washington and the median property tax rates in Washington and the U.S.

Property Tax Rates Across Soap Lake, Grant County, Washington

Source: Ownwell

0.84%

1.06%

1.29%

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 Soap Lake Tax Rate

0.97%

Median Effective Grant County Tax Rate

1.12%

Median Effective Washington Tax Rate

0.92%

Median Effective United States Tax Rate

1.02%

Property Tax Rates Across Soap Lake, Grant County, Washington

Zip	10th Percentile	25th Percentile	Median Tax Rate	75th Percentile	90th Percentile
98851	0.73%	0.95%	0.97%	1.08%	1.24%

Source: Ownwell

Property Tax Assessment Values Across Soap Lake, Grant County, Washington

When examining property taxes in Soap Lake, 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 Grant County appraisal district 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 Grant County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month when notices are sent.

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 Soap Lake.

For example, the median home price in Soap Lake is $100,789, with tax bills ranging significantly across the county. Zip code 98851 has the highest median home price at $100,789.

Property Tax Assessment Values Across Soap Lake, Grant County, Washington

Source: Ownwell

$24,000

$127,565

$231,130

Median Soap Lake Market Value

$100,789

Median Grant County Market Value

$160,157

Median Washington Market Value

$501,600

Median United States Market Value

$235,294

Property Tax Assessment Values Across Soap Lake, Grant County, Washington

Zip	10th Percentile	25th Percentile	Median Home Price	75th Percentile	90th Percentile
98851	$4,669	$22,762	$100,789	$210,073	$310,711

Source: Ownwell

Property Tax Bills Across Soap Lake, Grant County, Washington

Property tax bills in Soap Lake are determined by the assessed value of a home and the local tax rate set for Grant County and other local taxing districts. When a property’s assessed value rises, the tax bill can increase, even if the homeowner has not made major changes to the home. The median home price in Soap Lake is $100,789, which helps explain why tax bills can vary widely from one property to another.

For many homeowners, the tax bill is a meaningful part of the cost of owning a home. The 25th percentile tax bill is $169, while the 75th percentile is $1,883 and the 90th percentile reaches $2,948. The median tax bill in the area is $796, which is well below the national median property tax bill of $2,400 and below the national median property tax rate of 1.02%. These bills affect monthly housing costs and can influence affordability for current and prospective homeowners.

Property Tax Bills Across Soap Lake, Grant County, Washington

Source: Ownwell

$248

$1,365

$2,482

Median Soap Lake Tax Bill

$796

Median Grant County Tax Bill

$1,689

Median Washington Tax Bill

$4,512

Median United States Tax Bill

$2,400

Property Tax Bills Across Soap Lake, Grant County, Washington

Zip	10th Percentile	25th Percentile	Median Tax Bill	75th Percentile	90th Percentile
98851	$47	$169	$796	$1,883	$2,948

Source: 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
Grant Tax Assessor
Website	grantwa-taxsifter.publicaccessnow.com

Frequently Asked Property Tax Questions in Soap Lake, Washington

How are property taxes calculated in Soap Lake, Washington?

Property taxes in Soap Lake, Washington are calculated by multiplying your property's assessed value by the applicable tax rate set by local taxing authorities. The assessed value is determined by the county assessor and may differ from your property's market value depending on local assessment ratios and exemptions.

How do I appeal my property taxes in Soap Lake, Washington?

To appeal your property taxes in Soap Lake, Washington, you typically need to file a formal protest or appeal with your local appraisal district or assessor's office by the stated deadline. You'll need evidence such as comparable sales, a recent independent appraisal, or documentation of property condition issues. Ownwell can handle this entire process for you.

What property tax exemptions are available in Soap Lake, Washington?

Common property tax exemptions in Soap Lake, Washington include homestead exemptions for primary residences, senior citizen exemptions, veteran exemptions, and disability exemptions. Exemption amounts and eligibility requirements vary by county. Contact your local appraisal district or check Ownwell for details specific to your property.

When are property taxes due in Soap Lake, Washington?

Property tax deadlines in Soap Lake, Washington vary by county but typically include an assessment notice period in spring or early summer, followed by an appeal deadline, and a tax payment due date in the fall or winter. Check with your county assessor's office for specific dates in your area.

How can Ownwell help reduce my property taxes in Soap Lake, Washington?

Ownwell provides professional property tax appeal services in Soap Lake, Washington. Our team analyzes your assessment, gathers evidence, files all paperwork, and represents you at hearings — all with no upfront cost. You only pay a percentage of your savings if we successfully lower your tax bill.