Asotin County homeowners pay a median of $2,340 a year in property tax on a median home value of $325,600. Its effective tax rate (property taxes paid as a share of home values, per the Tax Foundation) is 0.72%, the 18th highest of 39 Washington counties. The Asotin County Assessor sets the market value of every home in Asotin County each year, as of January 1. If you disagree, the Asotin County Board of Equalization, usually a citizen board appointed by the county, hears your appeal.
Varies, some openAs of October 21, 2026, the July 1 deadline has passed, but the window stays open for 30-60 days after each Change of Value Notice, and several counties mail notices into the fall (for example, Snohomish County notices mailed October 9 can be appealed until December 8, 2026). Check the date on your notice; 2027 assessment-year notices go out during 2027, in many counties starting in spring.
File your petition with the county Board of Equalization by the later of July 1 of the assessment year or 30 days after the Change of Value Notice was mailed (or sent electronically). Counties may extend the 30 days to up to 60 days; some do, including King and Snohomish, while others (for example Pend Oreille) keep 30 days. If you mail it, the postmark counts. If you file after July 1, attach a copy of your notice. Example: Snohomish County gives 60 days; its 2026 notices mailed June 26 had to be appealed by August 25, 2026, and notices mailed October 9, 2026 must be appealed by December 8, 2026 (4 p.m. for in-person or email filing). The exact due date is printed on or calculated from your notice, so check it.
Phone: 509-243-2016
Email: [email protected]
Address: 135 2nd Street, Asotin, WA 99402
County Assessor: Jenny L Rynearson
Official website: asotincountywa.gov
The assessor can show you your property record and the sales used to value your home, and can fix factual errors before a hearing.
Phone: 509-243-2060 ext. 1002
Email: [email protected]
Hears appeals of the value. Check its filing window and rules.
When your value changes, the assessor mails a Change of Value Notice (no notices go out January 15 to February 15). Counties mail at different times of year, often in batches by area. King County mails between May and November; Snohomish County mailed batches on June 26 and October 9, 2026.
Look up your home on the Asotin County Assessor website and check square footage, bathrooms, condition and features. Mistakes are the easiest wins. Use our record card checklist.
File the Board of Equalization petition (REV 64 0075 or the county's version) with the Asotin County Board of Equalization clerk by July 1 or within 30 days of the date your Change of Value Notice was mailed (up to 60 days if Asotin County has extended it), whichever is later. One petition per parcel; attach your evidence or send it at least 21 business days before the hearing.
Recent sales of similar homes near you, as close to January 1 of the assessment year as possible (parcel number, address, sale date, price, features); Your own purchase price, if you bought recently in an arm's-length sale; An independent appraisal of your home; Contractor bids or estimates to fix defects, plus photos of the problems.
The assessor's value is presumed correct. You must prove it is wrong by clear, cogent and convincing evidence of your home's market value (RCW 84.40.0301). The same presumption applies at the Board of Tax Appeals.
Next step: Washington State Board of Tax Appeals (BTA). Within 30 days after the county board mails its decision. The BTA cannot extend this deadline or accept late appeals. Send the BTA Notice of Appeal (most homeowners use the informal Property Tax Appeal form) with a copy of the county board's order, by email to [email protected] or by mail to PO Box 40915, Olympia, WA 98504-0915. There is no filing fee. Do not send evidence yet; the BTA's acknowledgment letter and prehearing order set your evidence deadlines. Because of a backlog, hearings are usually scheduled about 18 months after filing. An informal BTA decision cannot be appealed to Superior Court; a formal appeal can.
The official appeal form is REV 64 0075: Taxpayer Petition to the County Board of Equalization for Review of Real Property Valuation Determination.
Open Form REV 64 0075Enter the market value on your assessment notice and what you think the home would really sell for. We estimate the yearly saving if the board agrees with you.
Some states cap how fast the taxable value of a home can rise (California, Florida, Michigan and Texas homesteads, for example). If your taxable value is already held below market value by a cap, a lower market value may not lower this year's bill.
Fill in your details and download a written appeal statement as a PDF or Word file. Most boards also require their own appeal form: file the form and attach this letter and your evidence to it.
Tax Appeal Map is a free information site, not a law firm or appraiser. The letter is a template, not legal advice.
File your petition with the county Board of Equalization by the later of July 1 of the assessment year or 30 days after the Change of Value Notice was mailed (or sent electronically). Counties may extend the 30 days to up to 60 days; some do, including King and Snohomish, while others (for example Pend Oreille) keep 30 days. If you mail it, the postmark counts. If you file after July 1, attach a copy of your notice. Example: Snohomish County gives 60 days; its 2026 notices mailed June 26 had to be appealed by August 25, 2026, and notices mailed October 9, 2026 must be appealed by December 8, 2026 (4 p.m. for in-person or email filing). The exact due date is printed on or calculated from your notice, so check it.
File with the Asotin County Board of Equalization (the clerk's office), not with the assessor, by the deadline shown on or calculated from your Change of Value Notice.
Phone 509-243-2016. Website: asotincountywa.gov.
No fee.
Contact details change; call or check the office website before you visit.