CWCountyWikiIndependent guide to local services
California

We remember your state on this device to show its pages first.

All states →
Ventura County, California · Property and assessment

Appeal a property assessment in Ventura County

Appeal a property assessment

1 provider · 2 official links (1 online) · 5 reviewed requirements · sources checked October 15, 2026

In Ventura County, 1 county department publishes 2 official links for this service, 1 of them online. Reviewed requirements cover availability notices (2), deadlines (1), documents (1) and payment methods (1). 1 provider lists forms on its guide.

These are the Ventura County providers with a reviewed service link for this task. Other offices may also help, and a provider may serve only part of the county: check each service area. Fees and forms stay on each office’s guide, where their sources are cited.
County government

Clerk of the Board — public records

Assessment appeal — online filing, paper application and hearing resources (opens in a new tab)Official instructions

Ventura County electronic and paper application routes. The January 2026 regular assessment period has closed; other appeal types have separate deadlines.

Availability · Email and fax are not filing channels
Use the county electronic filing system or the permitted paper channel; email and fax are not accepted as filing.
Source & saved evidence

Ventura County · Ventura — assessment appeals information (opens in a new tab)

Assessment appeals — Email and fax are not filing channels

Applications CAN NOT be submitted by E-Mail or Fax.

Agent source review: October 15, 2026 · Snapshot 204a391f0fb26ab3

Availability · Informal Assessor review and formal deadline
An informal Assessor review does not file a formal appeal or extend its deadline.
Source & saved evidence

Ventura County · Ventura — assessment appeals information (opens in a new tab)

Assessment appeals — Informal Assessor review and formal deadline

An Informal Review is not a formal appeal and does not extend the deadline to file a formal Assessment Appeal Application.

Agent source review: October 15, 2026 · Snapshot 204a391f0fb26ab3

Before you start · 3 requirements & conditions
Deadlines · 2026 regular assessment appeals only
For Ventura County’s 2026 regular assessment appeal, file July 2 through September 15, 2026. Other appeal types have separate, notice-based deadlines.
Source & saved evidence

California State Board of Equalization · 2026 county assessment-appeal filing periods (opens in a new tab)

BOE LTA2026/023 — page2, 2026 county filing deadline table

County Assessment Appeals Filing Periods for 2026 The clerks of county assessment appeals boards and county boards of equalization have certified the assessment appeals filing period for their counties pursuant to the requirements of Revenue and Taxation Code section 1603. The regular appeals filing period in each county will begin on July 2, 2026, and will end either on September 15, 2026, or November 30, 2026, depending on whether the County Assessor has elected to mail assessment notices to all taxpayers with property on the secured roll by August 1, 2026. The following table shows the filing deadline for each county: FILING FILING COUNTY COUNTY DEADLINE DEADLINE Alameda September 15 Orange November 30 Alpine September 15 Placer September 15 Amador November 30 Plumas November 30 Butte November 30 Riverside November 30 Calaveras November 30 Sacramento November 30 Colusa November 30 San Benito November 30 Contra Costa November 30 San Bernardino November 30 Del Norte November 30 San Diego November 30 El Dorado November 30 San Francisco September 15 Fresno November 30 San Joaquin November 30 Glenn November 30 San Luis Obispo September 15 Humboldt November 30 San Mateo November 30 Imperial November 30 Santa Barbara November 30 Inyo September 15 Santa Clara September 15 Kern November 30 Santa Cruz November 30 Kings September 15 Shasta November 30 Lake November 30 Sierra September 15 Lassen November 30 Siskiyou November 30 Los Angeles November 30 Solano November 30 Madera November 30 Sonoma November 30 Marin November 30 Stanislaus November 30 Mariposa November 30 Sutter November 30 Mendocino November 30 Tehama November 30 Merced November 30 Trinity November 30 Modoc November 30 Tulare November 30 Mono September 15 Tuolumne November 30 Monterey November 30 Ventura September 15 Napa November 30 Yolo November 30 Nevada November 30 Yuba November 30

Agent source review: October 15, 2026 · Snapshot c80e564097ddf0c2

Information & documents · County-specific formal appeal application
Use the BOE-305-AH application provided by the county where the property is located; a generic sample is not a valid filing.
Source & saved evidence

California State Board of Equalization · Assessment appeal FAQ (opens in a new tab)

BOE assessment appeals FAQ

You must file an Assessment Appeal Application, form BOE-305-AH, obtained from the clerk of the board of the county where your property is located. Some counties have this form available on the website of either the clerk of the board or the county assessor, or both. You must use the county application for the appeal to be considered a valid filing.

Agent source review: October 15, 2026 · Snapshot 92069ed341a828bf

Payments · Taxes while an appeal is pending
Pay property taxes on time while an appeal is pending to avoid penalties and interest. Filing an appeal does not suspend tax payments.
Source & saved evidence

California State Board of Equalization · Assessment appeal FAQ (opens in a new tab)

BOE assessment appeals FAQ

Yes. You are required to pay your property taxes timely despite any appeal you have pending. Failure to do so will result in financial penalties and interest charges regardless of the outcome of your appeal. If you are granted a reduction, you will receive a refund and interest.

Agent source review: October 15, 2026 · Snapshot 92069ed341a828bf

Source & saved evidence

Ventura County · Ventura — assessment appeals information (opens in a new tab)

Assessment appeals — Assessment appeal — online filing, paper application and hearing resources

An “Assessment Appeal Application” is a formal challenge of a property’s assessed value established by the Assessor’s Office.

Agent source review: October 15, 2026 · Snapshot 204a391f0fb26ab3

File an assessment appeal electronically (opens in a new tab)Online service

County electronic application system; filing deadlines depend on the assessment type.

Source & saved evidence

Ventura County · Ventura — assessment appeals information (opens in a new tab)

Assessment appeals — File an assessment appeal electronically

Complete an Application Online and Electronically Submit

Agent source review: October 15, 2026 · Snapshot 204a391f0fb26ab3

Related services in Ventura County

Appeal a property assessment in other counties

All California →

All Ventura County services and offices → · Report an error on this page