How to appeal a Imperial County, CA property assessment
✓ Verified — Last verified October 24, 2026
Filing details published for Imperial County. Match the notice and assessment cycle to the official instructions.
Official appeal instructionsNot tax or legal advice; confirm with your county.
Filing timing
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Where to file
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Official offices
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Imperial County Assessor's Office
Sources for these instructions
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Read the source quotations (13)
https://assessor.imperialcounty.org/real-property/
To protect your rights to a Formal Appeal you must file that Appeal with the Clerk of the Board between July 2 and November 30 at (442) 265-1020.
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https://www.boe.ca.gov/proptaxes/calendar.htm
§ 2605 Rev. & Tax. Code | November 1 | Property owners | First installment of real property taxes and all taxes on personal property on the secured roll are due and payable.
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https://www.boe.ca.gov/proptaxes/calendar.htm
§§ 2617 and 2704 Rev. & Tax. Code | December 10 | Property owners | First installment of taxes on the secured roll, if unpaid, is delinquent at 5:00 p.m. or close of business day, whichever is later.
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https://www.boe.ca.gov/proptaxes/calendar.htm
If the specified date falls on Saturday, Sunday, or a legal holiday, the action may be done on the next business day. (Government Code §§ 6706, 6707)
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https://www.boe.ca.gov/proptaxes/calendar.htm
§ 2606 Rev. & Tax. Code | February 1 | Property owners | Second installment real property taxes due and payable.
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https://www.boe.ca.gov/proptaxes/calendar.htm
§§ 2618 and 2705 Rev. & Tax. Code | April 10 | Property owners | Second installment of taxes on the secured roll, if unpaid, is delinquent at 5:00 p.m., or close of business day, whichever is later.
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https://treasurer-taxcollector.imperialcounty.org/avoid-penalties/
In the case of Secured Property Taxes, the 1st installment will be imposed a 10% penalty and the 2nd installment will be imposed a 10% penalty and a $10 cost.
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https://assessor.imperialcounty.org/real-property/
Notices of Assessed Value Change are mailed to property owners before supplemental tax bills are issued.
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https://imperialcounty.org/2026/10/financialoversight2026/
As part of the discussion, the Board reviewed the FY 2026–2027 property tax levy process, which includes establishing applicable tax rates for secured property throughout Imperial County, including rates associated with voter-approved school district and special district bonds.
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https://treasurer-taxcollector.imperialcounty.org/contact-us/
Suzanne C. Bermudez Treasurer - Tax Collector
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Continue with your property
Common questions
Where do I file a Imperial County assessment appeal?
Clerk of the Board; (442) 265-1020.
Updated , from cited verification dates. Individual sources may have earlier checks.