Property Tax Appeals in Kern County, California
Kern County's Clerk of the Board states that, effective September 19, 2025, a non-refundable filing fee of $75 for each application must be included at the time of filing or the application will not be processed; one application is required for each parcel or Assessor's Parcel Number. The county's posted filing instructions direct applicants to mail the completed application to the Clerk of the Board in Bakersfield; the page does not describe an online e-filing system. A fee waiver form is available for applicants who qualify. FairPath can organize an owner-managed comparison table, condition exhibits, official links, and a filing checklist. It does not file the application, select the owner's opinion of value, pay the fee, negotiate with the Assessor, or appear at the hearing.
Assessment context: Begin with the Assessor-Recorder's parcel record and confirm whether the dispute concerns the January 1, 2026 lien-date value on the regular roll, a supplemental assessment tied to a change of ownership or new construction, or an escape assessment. Kern County spans the dense city of Bakersfield and its suburbs, agricultural land and oilfield-adjacent parcels throughout the San Joaquin Valley floor, and mountain and desert communities toward the Sierra Nevada and the Mojave. A property a few miles away is not automatically comparable. Zoning, mineral or oil-lease status, agricultural use, and site access should be confirmed against the Assessor's record rather than assumed from a map.
Filing process: Download the Kern County Assessment Appeal Application with instructions, in English or Spanish, and read the filing deadlines before signing. Provide the parcel number, assessment year, and the applicant's opinion of value, and include the $75 non-refundable filing fee, payable to County of Kern by check, or a completed Filing Fee Waiver Form if the household qualifies. Mail the completed application to the Clerk of the Board, 1115 Truxtun Avenue, 5th Floor, Bakersfield, CA 93301-4617. An application may be amended until 5:00 p.m. on the last day it could have been timely filed. Property taxes remain due while the appeal is pending.
Evidence to review: Kern County's Assessment Appeals Board Rules describe the application and hearing process, and either the applicant or the Assessor's Office may request an exchange of comparable-sales and appraisal information under Revenue and Taxation Code Section 1606 once the application is filed. Build a comparable-sales table showing sale date, price, parcel, community, lot size, living area, age, and condition, and prioritize sales close to the January 1, 2026 lien date; California generally excludes comparable sales occurring more than 90 days after that date. For agricultural, oilfield-adjacent, or rural parcels, document water access, mineral-lease status, and any physical limitations with dated photographs or inspection findings.
Current deadline guidance: 2026 regular assessment appeals: July 2 through November 30, 2026. Kern County's Clerk of the Board publishes Assessment Appeals Filing Deadlines, and the county's 2026 regular filing period runs July 2 through November 30, 2026, consistent with the California State Board of Equalization's certified county filing-period table. Supplemental and escape assessments instead run on a notice-specific 60-day clock from the mailing or postmark date on the notice, whichever is later.
Kern County's 2026 regular filing period runs July 2 through November 30, matching the state's extended deadline group rather than the earlier September 15 group.
Effective September 19, 2025, Kern County charges a $75 non-refundable filing fee for each application, and a fee waiver form is available for qualifying applicants.
Kern County's posted filing instructions describe mailing the application to the Clerk of the Board in Bakersfield rather than filing online.
An application may be amended until 5:00 p.m. on the last day it could have been timely filed, after which corrections generally require the Clerk's or Board's involvement.
Official filing authority: Kern County Clerk of the Board, Assessment Appeals. https://www.kerncounty.com/government/board-of-supervisors/clerk-of-the-board/assessment-appeals
Source: Kern County Clerk of the Board, Assessment Appeals, https://www.kerncounty.com/government/board-of-supervisors/clerk-of-the-board/assessment-appeals. Reviewed 2026-09-22.
Source: Kern County, Assessor-Recorder, https://www.kerncounty.com/government/departments/assessor-recorder. Reviewed 2026-09-22.
Source: California State Board of Equalization, Letter to Assessors 2026/023: 2026 Assessment Appeal Filing Periods, https://boe.ca.gov/proptaxes/pdf/lta26023.pdf. Reviewed 2026-09-22.
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