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Ventura County · CaliforniaAppeal Your Ventura County Property Tax.
The Ventura County Assessor's office in Ventura values every property on California's January 1 lien date. When that assessed value overshoots the market, you have two tools: an informal Prop 8 decline in value review with the assessor, or a formal Assessment Appeals Board filing with the Clerk of the Board.
Ventura County Assessor
Source: California State Board of Equalization county directory.
Ventura County Prop 8 Filing Steps
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Check if your property qualifies
Run your address or APN through vulorean.com to see if your assessed value exceeds current market value as of January 1. You can also check your Notification of Assessed Value (mailed in July) or look up your value on the Ventura Assessor portal.
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Get your Vulorean valuation report
The report produces a market value opinion as of the January 1 lien date and includes comparable sales. Choose DIY (you file using the report) or Concierge (Vulorean handles everything from here).
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Submit your informal Decline in Value review request with your report
Ventura County has a dedicated online "Informal Request for Decline in Value" form. No fee required.
DIY Complete the online form and attach your Vulorean report as supporting documentation. Notifications are mailed in July — act promptly.Concierge Your Vulorean rep handles the form completion and submission on your behalf.- Informal review form: assessor.venturacounty.gov — Informal Request for Decline in Value
- Decline in Value info: assessor.venturacounty.gov — Decline in Value
- Assessor phone: (805) 654-2181
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Await assessor response
DIY If approved, the reduced value is enrolled for that tax year and reviewed automatically each year thereafter. Important: Ventura County Prop 8 reductions apply to the current tax year only — re-file annually if market value remains below assessed value.Concierge Your Vulorean rep monitors the response and keeps you informed. -
Formal appeal if denied
DIY File an Assessment Appeal Application (BOE-305-AH) with the Ventura County Clerk of the Assessment Appeals Board between July 2 and September 15. Online filing available. Important: Do NOT submit supporting documents with your application — Ventura County instructs you to bring evidence to the hearing only. File in parallel with step 3 — September 15 is an early deadline.Concierge Your Vulorean rep handles the appeal filing and hearing appearance on your behalf.- Online Assessment Appeal Application: venturacounty.gov/oaa
- Assessment Appeals info: venturacounty.gov — Assessment Appeals
- Clerk of the Board: 800 S. Victoria Ave., Fourth Floor, Ventura, CA 93009-1940
Ventura County reminder: California's Prop 13 caps annual taxable value growth at 2%, so a successful appeal keeps paying dividends every year your market value sits below the Prop 13 base. Prop 8 is the complement. It lets you capture temporary market dips. Both paths run through the Ventura County Assessor in Ventura.
When You Probably Qualify for a Ventura County Reduction
- Your current assessed value is above recent sales of comparable homes in Ventura County
- You bought in Ventura County in the last 12 months below the county's assessed value
- Your Ventura Assessor parcel record has errors, wrong square footage, added features that don't exist, or incorrect grade
- Your home has unrepaired damage, structural issues, foundation settling, or major deferred maintenance
- Your neighborhood's market softened but the Ventura Assessor hasn't adjusted
Ventura County Appeal Package · $50 Flat
We pull your Ventura County Assessor record, build comparable sales, and produce a filing ready BOE-305-AH appeal in 48 hours. You keep 100% of the savings.
Start My Ventura County Appeal →Ventura County Property Tax FAQ
When does Ventura County mail assessment notices?
California counties, including Ventura, typically mail notices in June or July. Your window to file BOE-305-AH opens July 2 and closes either September 15 or November 30 depending on the county's Clerk of the Board schedule. Confirm with the Ventura Clerk's office.
Do I have to use an attorney?
No. The California Assessment Appeals Board is designed for pro se homeowners. Filing BOE-305-AH is a two page form and hearings are informal. Most Ventura County homeowners file and represent themselves.
Will my Ventura County taxes go up if I appeal?
No. California appeal outcomes at the Assessment Appeals Board are strictly reductions or no change. Prop 13 caps assessed value growth at 2% per year regardless.
Is Prop 8 the same as Prop 13?
No. Prop 13 is the base year rule that caps annual assessment growth. Prop 8 is the companion rule that lets the assessor (or you) temporarily drop your value below the Prop 13 base when the market falls. When the market recovers, your value can rise back up to the Prop 13 cap, but not above it.