How to appeal a Yolo County, CA property assessment
✓ Verified — Last verified October 24, 2026
Filing details published for Yolo 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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Yolo County Assessor’s Office
Sources for these instructions
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Read the source quotations (11)
https://ace.yolocounty.gov/m/NewsFlash
Assessment Appeal Filing Window: July 2 – November 30
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https://ace.yolocounty.gov/m/NewsFlash
Contact the Clerk of the Board: (530) 666-8195 or yolocounty.gov/assessment-appeals
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https://www.boe.ca.gov/proptaxes/calendar.htm
November 1 | Property owners | If ordered by board of supervisors, first installment real property taxes and first installment (one half) personal property taxes on the secured roll are due.
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https://www.yolocounty.gov/government/general-government-departments/financial-services/property-tax
If the due date falls on a Saturday, Sunday or legal holiday, the delinquent late penalty will not be charged if payment is received in full by 5:00 PM of the close of business, whichever is later, on the next business day.
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https://www.boe.ca.gov/proptaxes/calendar.htm
February 1 | Property owners | Second installment real property taxes due and payable.
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https://www.yolocounty.gov/government/general-government-departments/financial-services/property-tax
Payments made after the delinquent date for the first installment are assessed a penalty of 10%. B. Payments made after the delinquent date for the second installment are assessed a penalty of 10% plus a cost of $10. C. Payments not made by June 30 are assessed an additional cost of $15 and a redemption penalty (calculated like interest) will accrue at 1.5% per month until the property tax is paid in full.
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https://ace.yolocounty.gov/Archive/36
2026-2027 Assessment Roll Summary (PDF) (Roll Delivery - June 23, 2026)
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https://ace.yolocounty.gov/m/NewsFlash
contact the Assessor’s Office with questions or concerns at (530) 666-8135
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Continue with your property
Common questions
Where do I file a Yolo County assessment appeal?
Clerk of the Board, (530) 666-8195
Updated , from cited verification dates. Individual sources may have earlier checks.