How to appeal a Butte County, CA property assessment

✓ Verified — Last verified October 25, 2026

Filing details published for Butte County. Match the notice and assessment cycle to the official instructions.

Official appeal instructions

Not tax or legal advice; confirm with your county.

Filing timing

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Instructions based on your notice

Regular-roll assessment appeals may be filed July 2 through November 30 with the Clerk of the Board.

Officially published

Where to file

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Butte County Clerk of the Board

Officially published

Official appeal page

Officially published

Official offices

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Butte County Assessor’s Office

Office website

Officially published

Phone

530.552.3800

Officially published

All Butte County dates, offices and sources

Sources for these instructions

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Read the source quotations (11)
https://www.buttecounty.net/223/Dates-Deadlines
July 2nd through November 30th - Period for filing application for assessment appeal with the Clerk of the Board

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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
§ 2606 Rev. & Tax. Code February 1 Property owners Second installment real property taxes due and payable.

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https://www.buttecounty.net/955/Property-Tax-Due-Dates
If a final due date falls on a weekend or holiday, the taxes may be paid without penalty until 5 pm on the next business day.

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https://www.buttecounty.net/955/Property-Tax-Due-Dates
December 10: Final day to pay the first installment of secured property taxes. A 10% penalty is added after 5 pm. Online payments, however, will be accepted as timely if paid by midnight on the final due date. … April 10: Final day to pay the second installment of secured property taxes. A 10% penalty and an additional $44 charge is added to the bill after 5 pm. Online payments, however, will be accepted as timely if paid by midnight on the final due date. … If a final due date falls on a weekend or holiday, the taxes may be paid without penalty until 5 pm on the next business day.

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https://www.buttecounty.net/960/Property-Taxes
Secured property tax bills for the 2026-2027 fiscal year can now be accessed online and tax bills were mailed at the end of September.

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https://www.buttecounty.net/960/Property-Taxes
Treasurer-Tax Collector

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https://www.buttecounty.net/960/Property-Taxes
530.552.3720

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https://www.buttecounty.net/960/Property-Taxes
If you have questions about the assessed value of your property, please contact the Assessor's Office at 530.552.3800

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https://www.buttecounty.net/960/Property-Taxes
530.552.3800

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Continue with your property

Common questions

Where do I file a Butte County assessment appeal?

Butte County Clerk of the Board

What's next for you

Butte County, CA

Due date:

Official source

Set by law. Verified October 24, 2026.

§ 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.

Check the official source

Updated , from cited verification dates. Individual sources may have earlier checks.