These are some important dates on the assessment calendar.
January 1
Real and personal property is subject to taxation and valuation for assessment purposes as of this date.
January 15
Certification of Levies.
February 15
Property tax statements are mailed out by the County Treasurer and property taxes can be paid after this date to the County Treasurer.
April 30
Personal property listings due.
April 30
First half property taxes are due to the County Treasurer.
May 31
End of revaluation cycle for assessment purposes.
Notice of Values are mailed out.
July 1
Filing deadline for Board of Equalization petitions. (Dependent on Mailing Date of Notice of Values.)
July 15
Board of Equalization meets in open session.
August 1
Most taxing district boundaries must be established.
August 31
Last day assessor can add new construction value.
October 1
Last day to file for exemption on historic property.
October 31
Second half property taxes are due to the County Treasurer.
November 30
City and other taxing districts budgets are due to the County Legislative Authority.
Taxing certifications and the amount levied per taxing district are due to the County Assessor.
Posted: 03/25/2015 01:34 PM
Last Updated: 04/09/2026 09:18 AM
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By clicking continue, you confirm that you have read, understood and agreed to this disclaimer.
The information contained on this site is provided as a courtesy of the Chelan County. Where it exists, the "Index.txt" will contain a brief explanation of files contained in this folder
Chelan County makes every effort to ensure the accuracy of the information provided on its web site. However, due to the possibility of transmission errors, HTML browser capabilities, changes made since the last update to the site, etc., neither Chelan County, nor any agency, officer or employee of Chelan County warrants the accuracy, reliability, or timeliness of any information published by this system and shall not be held liable for any losses caused by reliance on the accuracy, reliability, or timeliness of such information. Portions of such information may be incorrect or not current. Any person or entity that relies on any information obtained from this system does so at his or her own risk.
PLEASE NOTE: FTP browsing is no longer supported on the latest browsers, please refer below to acccess our FTP content.
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By clicking continue, you confirm that you have read, understood and agreed to this disclaimer.
The information contained on this site is provided as a courtesy of the Chelan County. Where it exists, the "Index.txt" will contain a brief explanation of files contained in this folder
Chelan County makes every effort to ensure the accuracy of the information provided on its web site. However, due to the possibility of transmission errors, HTML browser capabilities, changes made since the last update to the site, etc., neither Chelan County, nor any agency, officer or employee of Chelan County warrants the accuracy, reliability, or timeliness of any information published by this system and shall not be held liable for any losses caused by reliance on the accuracy, reliability, or timeliness of such information. Portions of such information may be incorrect or not current. Any person or entity that relies on any information obtained from this system does so at his or her own risk.
By clicking continue, you confirm that you have read, understood and agreed to this disclaimer.
The information contained on this site is provided as a courtesy of the Chelan County. Where it exists, the "Index.txt" will contain a brief explanation of files contained in this folder
Chelan County makes every effort to ensure the accuracy of the information provided on its web site. However, due to the possibility of transmission errors, HTML browser capabilities, changes made since the last update to the site, etc., neither Chelan County, nor any agency, officer or employee of Chelan County warrants the accuracy, reliability, or timeliness of any information published by this system and shall not be held liable for any losses caused by reliance on the accuracy, reliability, or timeliness of such information. Portions of such information may be incorrect or not current. Any person or entity that relies on any information obtained from this system does so at his or her own risk.
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