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Finance and Business Operations Division

Finance and Business Operations Division
 

FAQ - Assessment

Information on this page is limited to frequently asked questions related to assessed values, exemptions and mobile homes. Go to General Questions or Online Payments for other frequently asked questions.

The amount of your property tax bill is based upon the costs of your state and local government. This includes the operating costs of your schools, city and county, and of taxing districts such as hospital, fire and sewer districts. The assessed value of your property is multiplied by the tax rate necessary in your levy area to produce your fair share of the total levied tax by these jurisdictions.

  1. What can I do if I disagree with my assessed value?
  2. How do I find out information about my assessed value? How was my assessed-value determined?
  3. My property has been damaged: Can I get a reduction in assessed-value and taxes?

Several Taxpayer Assistance programs are available through the Department of Assessment. For more information refer to the Department of Assessment web page.

  1. Can senior and disabled property owners receive a property-tax deduction?
  2. I applied for a senior citizens/disabled persons exemption but it is not reflected on my tax statement. What happened?
  3. This is the first time I have ever received a senior citizens/disabled persons exemption. Why did I receive two statements?
  4. I plan to make home improvements: Can I get an exemption from taxes on the value of the improvements?

Manufactured/Mobile Homes have some unique procedures involving sales and titles. Please see answers below to common questions asked.

  1. What do I need to do to sell or transfer my Mobile Home when the Mobile Home will not be moved?
  2. What do I need to do to eliminate the title of my mobile home?
Assessed ValuesBack to top of page.
1 What can I do if I disagree with my assessed value?
If you believe a mistake has been made in valuing your property, contact the Department of Assessment at 206-296-7300 or visit the King County Department of Assessment website. You may also file a valuation appeal by contacting the King County Board of Equalization at 206-477-3400. "Information Needed to Appeal" documentation is available at the Department of Assessment, Taxpayer Assistance - Appeals webpage.
2 How do I find out information about my assessed value? How was my assessed-value determined?
You can look up your property's assessed value online, using the Property Information System. For further information, visit the King County Department of Assessment website or call 206-296-7300.
3 My property has been damaged: Can I get a reduction in assessed-value and taxes?
If your property is damaged or destroyed, you may be eligible for a reduction in your assessed-value and taxes. For details, visit the King County Department of Assessment, Taxpayer Assistance - Tax Relief webpage or call 206-263-2332.

Exemptions Back to top of page.
1 Can senior and disabled property owners receive a property-tax deduction?
If your annual income does not exceed $40,000 and you own and reside in your home, including mobile homes, you may be entitled to a property tax reduction. You must be at least 61 years of age or, if under 61 years, retired because of a disability and unable to work. Property taxes may be deferred under certain conditions. For details, visit the King County Department of Assessment, Taxpayer Assistance - Tax Relief webpage and go to the Senior Citizens/Disabled Exemption section or call 206-296-3920.
2 I applied for a senior citizens/disabled persons exemption but it is not reflected on my tax statement. What happened?
Please contact the King County Department of Assessment, Senior Citizens/Disabled Persons Exemption Section at 206-296-3920 to obtain information about your application.
3 This is the first time I have ever received a senior citizens/disabled persons exemption. Why did I receive two statements?
The Senior Citizens/Disabled Persons Exemption applies only to one acre of land and residence. If you received two statements, one of the following circumstances should apply to you:
  1. The property for which you are being taxed consists of more than one acre.
  2. The property for which you are being taxed is a multi-family unit or has an additional home (only the unit which the owner resides in qualifies for the exemption).
If none of the above listed circumstances apply or you wish to obtain more information, please call the King County Department of Assessment, Senior Citizens/Disabled Persons Exemption Section at (206) 296-3920 for assistance.
4 I plan to make home improvements: Can I get an exemption from taxes on the value of the improvements?
If you improve your single family residence by adding new rooms, decks, patios or other improvements, you may apply for a three-year exemption from taxes on the value of the physical improvement. You must apply for the exemption before construction is complete. For details, visit the King County Department of Assessment, Taxpayer Assistance - Tax Relief webpage or call 206-263-2338.

Mobile HomesBack to top of page.
1 What do I need to do to sell or transfer my Mobile Home when the Mobile Home will not be moved?
If you are selling or transferring the title of your Mobile Home and the mobile home will not be moved, refer to the instructions below:

You are required to complete a Mobile Home Excise Tax Affidavit to document the sale and pay excise tax on the sale price. The full year's taxes and all delinquent taxes must be paid and certified as paid on the Excise Tax Affidavit (PDF, External link). This is done at the Treasury Operations Office. The Excise Tax Affidavit is then taken to the King County Records Office to be recorded. Once recorded your copy of the Excise Tax Affidavit can be taken to the Department of Licensing to change the ownership on the title. (All of these offices are located in the King County Administration Building.)

You can obtain the Mobile Home Excise Tax Affidavit at:
King County Treasury Operations Office
500 4th Avenue, Room 600
Seattle, 98104


For questions, call Treasury Operations/Mobile Homes 206-263-2844.

If you are selling your Mobile Home and as a condition of sale the mobile home will be moved, refer to the instructions below:

You will need to obtain a "Tax Certificate for Mobile Home Movement" (move permit) from the Treasury Operations Office. Treasury Operations will certify that any property taxes due on the mobile home have been paid and issue an orange decal (which is valid for 15 days) that must be displayed on the mobile home while being moved. It is a violation of State law to move a mobile home without a validated tax certificate and orange decal. When all property taxes have been paid, Treasury Operations will also issue a "Sale Half Sheet" to document the sale. When a mobile home is moved out of the County, an advance tax for the following year must be paid. The Sale Half Sheet form and the current mobile home title can be taken to the Department of Licensing to pay sales tax and transfer the title into the new owner's name. If the title has been previously eliminated, a Manufactured Home Application must be completed in order to move the mobile to another real property site or a mobile home park. For more information, visit the state Department of Licensing or call 206-296-4000.

 

2 What do I need to do to eliminate the title of my mobile home?
As of March 1, 1990, owners of Manufactured/Mobile Homes have had an option in the titling process of their home. Owners may eliminate the separate title and opt to record their home with their land as real property. To apply, the property owner must obtain a Manufactured Home Application. For more information, visit the state Department of Licensing or call 206-296-4000.