California · County guide
Orange County, CA property tax appeal
An Orange County, CA property tax appeal is an application to the Orange County Assessment Appeals Board. The 2026 regular period ends at 5:00 p.m. on November 30, 2026, and there is no filing fee. The Clerk's FAQ says a form prepared online must still be printed, signed and mailed or delivered.
This season
- Next deadline
- Nov 30, 2026
- Open now
- Orange County Assessment Appeals Board
Opens Jul 2, 2026Closes Nov 30, 2026
- Source: Letter To Assessors No. 2026/023: County Assessment Appeals Filing Period for 2026 (BOE, June 2, 2026)Last checked
Check an Orange County home for free
Here the check uses your own figures: you enter the assessed value from your notice or tax bill and the year you bought. We compare how much it has grown with the house price index for your area and show the numbers as your figures. You decide and file yourself.
Excellent5.0 out of 5 · Based on reviewsRead reviews →
Reduced my assessment by $112,000!
I couldn’t believe the difference. My property assessment was reduced by $112,000. I’m extremely happy with the outcome!
A $106,300 reduction
We had no idea there was this much room between our original assessment and the final number. Very happy with the outcome.
- Filing fee
- None
- How to file
- Print, sign and mail or deliver the application
- Office address
- 333 W. Santa Ana Blvd., Ste. 100, Santa Ana, CA 92701
- Our coverage
- Free check available
- Independent guide — not affiliated with Orange County or any government agency.
- Last updated
- October 1, 2026
- Sources last checked
- October 1, 2026
- Status
- Verified guide
When and where do I file an Orange County property tax appeal?
Who hears an Orange County appeal?
One stage. We are not affiliated with this office.
Who hears it: Orange County Assessment Appeals Board
Filing: appeal
Open nowWhere is the Orange County office?
Orange County Assessment Appeals Board[1]
- Address
- 333 W. Santa Ana Blvd., Ste. 100, Santa Ana, CA 92701
- Online
- Official website
Assessor[7]
Orange County Assessor Department
- Hours
- Monday-Friday 8:00 AM-5:00 PM (satellite closed 12:00-1:00 PM)
We are not affiliated with this office. Hours can change, so call before you visit.
Which Orange County filing windows are coming up?
| Closes | Area | Who hears it | Status |
|---|---|---|---|
| Nov 30, 2026 | Countywide | Orange County Assessment Appeals Board · Official source · Last checked Sep 29, 2026 | Open now |
When were past Orange County deadlines?
| Tax year | Window | Office |
|---|---|---|
| 2025 | Closed December 1, 2025 | Orange County Assessment Appeals Board |
| 2024 | Closed December 2, 2024 | Orange County Assessment Appeals Board |
| 2023 | Closed November 30, 2023 | Orange County Assessment Appeals Board |
How do I file a Orange County appeal?
- Filing period
- July 2 to November 30 at 5:00 p.m.
- If the last day is a weekend or holiday
- The period runs to 5:00 p.m. the next business day
- Filing fee
- None
- How to file
- An application prepared online must still be printed, signed and mailed or delivered to the Clerk of the Board before the deadline
- Do I need an agent?
- No. You can file and present your evidence without an agent or attorney
When is the deadline to appeal a property tax assessment in Orange County?
The soonest deadline we list: Orange County, Orange County Assessment Appeals Board — Closes November 30, 2026.
- When a filing counts as on timeOrange County Assessment Appeals Board
- An Orange County application prepared online must still be printed, signed and mailed or delivered so that it is received on time with an original signature.[1]
- Deadline detailOrange County Assessment Appeals Board · Filing period
- Orange County's regular appeal filing period is July 2 to November 30 at 5:00 p.m.[1]
- Deadline detailOrange County Assessment Appeals Board · Hearing timeline
- Orange County appeals are heard within the two-year statutory period, usually within about eight months when filed early; hearing notices come at least 60 days ahead.[1]
- Deadline detailOrange County Assessment Appeals Board · Rollover
- In Orange County, if the last filing day falls on a weekend or holiday, the period runs to 5:00 p.m. the next business day.[1]
Who decides a property tax appeal in Orange County?
Orange County Assessment Appeals Board: In Orange County the owner chooses whether an Appeals Board or a Hearing Officer hears the appeal; both decide on the hearing evidence. Orange County Assessment Appeals Board: In Orange County you appeal the Assessor's enrolled value of your property (not the tax itself) to an Assessment Appeals Board or a Hearing Officer.
- Appeal stepsOrange County Assessment Appeals Board
- In Orange County the owner chooses whether an Appeals Board or a Hearing Officer hears the appeal; both decide on the hearing evidence.[1]
- What the appeal is calledOrange County Assessment Appeals Board
- In Orange County you appeal the Assessor's enrolled value of your property (not the tax itself) to an Assessment Appeals Board or a Hearing Officer.[1]
How do I file a property tax appeal in Orange County?
Orange County Assessment Appeals Board: Orange County's FAQ says an application prepared online must still be printed, signed and mailed or delivered to the Clerk of the Board before the deadline. Orange County Assessment Appeals Board · Online: Orange County's Clerk of the Board offers an E-Form for the assessment appeal application at assessmentappeals.ocgov.com; the 2026 regular filing period runs July 2 to November 30, 2026.
- How to fileOrange County Assessment Appeals Board
- Orange County's FAQ says an application prepared online must still be printed, signed and mailed or delivered to the Clerk of the Board before the deadline.[1]
- How to fileOrange County Assessment Appeals Board · Online
- Orange County's Clerk of the Board offers an E-Form for the assessment appeal application at assessmentappeals.ocgov.com; the 2026 regular filing period runs July 2 to November 30, 2026.[2]
- FormsOrange County Assessment Appeals Board
- Orange County's appeal forms and step-by-step online help are on the Clerk of the Board's 'Appeal Your Property Value' pages, at most County Libraries and at the Clerk's office.[1]
- Filing feeOrange County Assessment Appeals Board
- Orange County charges no fee to file an assessment appeal.[1]
- Who may fileOrange County Assessment Appeals Board
- In Orange County you can file and present your evidence without an agent or attorney.[1]
- Informal reviewOrange County Assessment Appeals Board
- In Orange County the Assessor reviews values each year on its own; owners can also request an informal review between January 1 and April 30.[3]
- HearingsOrange County Assessment Appeals Board
- Orange County appeals go to a three-member Appeals Board (more formal) or a Hearing Officer (informal, residential); findings of fact are only available from a full board, and a no-show is denied.[1]
What evidence counts in Orange County, and can the value go up?
Can the Orange County appeals board raise my value?
Yes. Based on the evidence, the Orange County Assessment Appeals Board, like every California appeals board, can raise, lower or keep an assessment.
What evidence can I use in Orange County?
Orange County Assessment Appeals Board: Orange County suggests comparable sales of similar nearby homes as close as possible to the January 1 lien date. Orange County Assessment Appeals Board · Copies: For an Orange County hearing, bring 6 copies of your evidence to an Appeal Board or 4 copies to a Hearing Officer; comps are not required with the application.
- Evidence acceptedOrange County Assessment Appeals Board
- Orange County suggests comparable sales of similar nearby homes as close as possible to the January 1 lien date.[1]
- Evidence ruleOrange County Assessment Appeals Board · Copies
- For an Orange County hearing, bring 6 copies of your evidence to an Appeal Board or 4 copies to a Hearing Officer; comps are not required with the application.[1]
- Evidence ruleOrange County Assessment Appeals Board · Sale dates
- Orange County boards and hearing officers cannot consider a comparable sale more than 90 days after the valuation date (for a January 1 appeal, no later than March 30).[1]
Can my assessment go up if I appeal in Orange County?
Orange County Assessment Appeals Board: Orange County's appeals boards and hearing officers may raise an assessment after proper notice; once the Assessor gives notice of a recommended increase, the owner can withdraw only with the Assessor's consent.
- Can the value go up?Orange County Assessment Appeals Board
- Orange County's appeals boards and hearing officers may raise an assessment after proper notice; once the Assessor gives notice of a recommended increase, the owner can withdraw only with the Assessor's consent.[4]
Which exemptions can lower my bill without an appeal?
An Orange County owner living in the home on January 1 can apply for the Homeowners' Exemption: $7,000 of assessed value exempt, at least $70 a year.
- Homeowner exemption
- An Orange County owner living in the home on January 1 can apply for the Homeowners' Exemption: $7,000 of assessed value exempt, at least $70 a year.[5]
What do Orange County property taxes and assessments look like?
Figures from public records and the Census, each with its source. They describe the county's homes as a group, not the value of any one home.
How much could a lower assessment save on Orange County property taxes?
Tax rate used: 1.064% of assessed value (county average, fiscal 2024-25).
| Example | Tax saved |
|---|---|
| $10,000 less assessed value | $106 a year |
| 10% less on a home assessed at $962,600 (the Census median home value) | $1,024 a year |
These are examples: the tax rate times a lower assessed value. Exemptions, credits, caps and phase-ins can make the real change smaller. This is not a prediction for any home. Rate source: BOE Annual Report 2024-25, Table 14: average tax rate by county (Property Tax Allocations, BOE Open Data Portal).
What do homeowners in Orange County pay in property tax?
The median owner-occupied home in Orange County was worth $962,600, and the median property tax its owners paid was $6,330 a year, according to the Census Bureau's American Community Survey.
- Median home value
- $962,600
- Margin of error ±$4,214.
- Median property tax paid per year
- $6,330
- Margin of error ±$53.
- Median tax as a share of median value
- 0.66%
- A ratio of two medians, not a tax rate. Your own bill depends on your assessment and local levies.
- Owner-occupied homes
- 610,659
- Margin of error ±4,388.
These are survey estimates of what owners reported about their own homes. They are not assessed values, not tax rates, and not an opinion of what any home is worth.
They cannot tell you whether your own assessment is fair. That takes a comparison with similar homes, which we offer only in counties we have researched.
Median home value: Orange County compared
- Orange County$962,600
- Typical California county$481,100
- Typical US county$185,300
Orange County $962,600; Typical California county $481,100; Typical US county $185,300
Median property tax paid: Orange County compared
- Orange County$6,330
- Typical California county$3,294
- Typical US county$1,619
Orange County $6,330 a year; Typical California county $3,294 a year; Typical US county $1,619 a year
Orange County filing windows on a calendar
- Open
- Opens soon
- Forecast
- Orange County Assessment Appeals BoardNov 30, 2026 · Open now
The dashed line marks today.
Orange County Assessment Appeals Board: Nov 30, 2026
How often is property reassessed in Orange County?
In Orange County new construction is taxable but does not trigger a reassessment of the entire property. Orange County values property each year as of January 1 and taxes the lower of market value and the Prop 13 value.
- Reassessment cycle
- In Orange County new construction is taxable but does not trigger a reassessment of the entire property.[6]
- Valuation date
- Orange County values property each year as of January 1 and taxes the lower of market value and the Prop 13 value.[3]
- Level of assessmentDecline in value
- In Orange County the taxable value is the lower of the January 1 market value and the Prop 13 value, so it can move more than 2% in a year within the Prop 13 limit.[3]
Homes in Orange County
From the Census Bureau's American Community Survey: how old the homes are, what kind they are, what owners say they are worth and the property taxes they pay. These figures describe all homes together, not any one home.
- Median year built
- 1977
- All housing units, owned and rented
- Single-family houses, detached or attached
- 62%
- of 1,146,169 housing units
- Owned homes with a mortgage or similar loan
- 67%
- of 610,659 owner-occupied homes
Home values reported by owners
- Less than $50,0002%
- $50,000 to $99,9991%
- $100,000 to $199,9992%
- $200,000 to $299,9992%
- $300,000 to $399,9992%
- $400,000 to $499,9994%
- $500,000 to $749,99915%
- $750,000 to $999,99927%
- $1,000,000 to $1,999,99936%
- $2,000,000 or more10%
Home values reported by owners in Orange County: Less than $50,000 2%; $50,000 to $99,999 1%; $100,000 to $199,999 2%; $200,000 to $299,999 2%; $300,000 to $399,999 2%; $400,000 to $499,999 4%; $500,000 to $749,999 15%; $750,000 to $999,999 27%; $1,000,000 to $1,999,999 36%; $2,000,000 or more 10%.
Property taxes owners pay a year
- No real estate taxes3%
- Less than $8003%
- $800 to $1,4994%
- $1,500 to $1,9993%
- $2,000 to $2,9997%
- $3,000 or more78%
Property taxes owners pay a year in Orange County: No real estate taxes 3%; Less than $800 3%; $800 to $1,499 4%; $1,500 to $1,999 3%; $2,000 to $2,999 7%; $3,000 or more 78%.
Source: U.S. Census Bureau, American Community Survey (2020–2024 5-year estimates, tables B25075, B25102, B25035, B25024 and B25081), retrieved Oct 1, 2026. Survey estimates have a margin of error.
More questions about Orange County property tax appeals
When is the Orange County property tax appeal deadline?
The Orange County Assessment Appeals Board window closes November 30, 2026.[8][9]
Is there a fee to file a property tax appeal in Orange County?
Orange County charges no fee to file an assessment appeal.[1]
Where do I file an assessment appeal in Orange County?
Orange County's FAQ says an application prepared online must still be printed, signed and mailed or delivered to the Clerk of the Board before the deadline.[1]
Can my assessed value go up if I appeal in Orange County?
Orange County's appeals boards and hearing officers may raise an assessment after proper notice; once the Assessor gives notice of a recommended increase, the owner can withdraw only with the Assessor's consent.[4]
What other rules apply in Orange County?
Orange County Assessment Appeals Board: Orange County owners must keep paying property taxes during an appeal; a late-payment penalty cannot be appealed to the board. Overpayments are refunded with interest.
- Paying the tax while you appealOrange County Assessment Appeals Board
- Orange County owners must keep paying property taxes during an appeal; a late-payment penalty cannot be appealed to the board. Overpayments are refunded with interest.[1]
Property tax guides for Orange County homeowners
- California Prop 8: Decline-in-Value Reviews ExplainedOrange County
- How Comparable Homes Are Chosen, and Why It MattersCalifornia · Orange County
- How to Appeal Your Property Taxes YourselfCalifornia · Orange County
- Assessed Value vs. Market Value: How They Differ by StateCalifornia · Orange County
- Homestead and Other Exemptions to Check FirstCalifornia · Orange County
- Homestead Exemption: What It Is and How to Get ItCalifornia · Orange County
- How to Lower Your Property Taxes: What to Check FirstCalifornia · Orange County
Counties next to Orange County
- Los Angeles County property tax appealsFree check availableNext deadline: Nov 30, 2026
- San Diego County property tax appealsFree check availableNext deadline: Nov 30, 2026
- Riverside County property tax appealsFree check availableNext deadline: Nov 30, 2026
- San Bernardino County property tax appealsFree check availableNext deadline: Nov 30, 2026
Check an Orange County home free
You decide and file yourself.
Where do these facts come from?
- [1]Assessment Appeals FAQ - OC Clerk of the BoardOfficial guide or FAQ · last checked Sep 29, 2026
- [2]Appeal Your Property Value | OC Clerk of the BoardOfficial guide or FAQ · last checked Oct 1, 2026
- [3]Declines in Market Value | Orange County Assessor DepartmentOfficial guide or FAQ · last checked Sep 29, 2026
- [4]Assessment Appeals Board and Hearing Officer Rules of Procedure, approved 10-28-2025 (Orange County, PDF)Official notice, form, calendar or rules · last checked Sep 30, 2026
- [5]Homeowners' Exemption FAQ | Orange County Assessor DepartmentOfficial guide or FAQ · last checked Sep 29, 2026
- [6]Property Tax Tips for New Owners (Orange County Assessor, PDF)Official guide or FAQ · last checked Sep 29, 2026
- [7]Contact Us | Orange County Assessor DepartmentOfficial guide or FAQ · last checked Oct 1, 2026
- [8]Letter To Assessors No. 2026/023: County Assessment Appeals Filing Period for 2026 (BOE, June 2, 2026)Official notice, form, calendar or rules · last checked Sep 25, 2026
- [9]Publication 30: Residential Property Assessment Appeals (California State Board of Equalization, February 2020)Official guide or FAQ · last checked Sep 25, 2026
- [10]Letter To Assessors No. 2025/020: County Assessment Appeals Filing Period for 2025 (BOE, July 7, 2025)Official notice, form, calendar or rules · last checked Oct 1, 2026
- [11]Letter To Assessors No. 2024/022: County Assessment Appeals Filing Period for 2024 (BOE, June 25, 2024)Official notice, form, calendar or rules · last checked Oct 1, 2026
- [12]Letter To Assessors No. 2023/023: County Assessment Appeals Filing Period for 2023 (BOE, June 22, 2023)Official notice, form, calendar or rules · last checked Oct 1, 2026
- 13.U.S. Census Bureau, ACS 2020–2024 5-year estimates, table B25077: Median value (dollars), owner-occupied housing units — Orange County, California
- 14.U.S. Census Bureau, ACS 2020–2024 5-year estimates, table B25103: Median real estate taxes paid, owner-occupied housing units — Orange County, California
- 15.U.S. Census Bureau, ACS 2020–2024 5-year estimates, table B25003: Tenure (owner- and renter-occupied housing units) — Orange County, California
Data credits: Census ACS (public domain) · Census county adjacency (public domain)
Not affiliated with Orange County or any government agency. Not legal advice. Not an appraisal.