Orange County, California · Property Tax · 2026-27
Search, Pay & Understand Orange County California Property Taxes
Check your Orange County property-tax bill, see the 2026-27 installment dates, understand Proposition 13, estimate your tax, decode a supplemental bill after buying a home, and know which county office fixes each problem.
California’s system is different from Florida’s. The Orange County Assessor establishes taxable value and exemptions, the Auditor-Controller calculates taxes and rates, and the Treasurer-Tax Collector sends and collects the bill.
Primary task
How to Search & Pay Orange County California Property Taxes
Orange County’s Treasurer-Tax Collector provides an online tax-bill system for secured, supplemental and unsecured property taxes. For real estate, start with the Assessor’s Parcel Number (APN) or property address.
Open the official Orange County tax-bill system
Use TaxBill.octreasurer.gov rather than a third-party property-tax payment site.
Search by APN or property address
Secured and supplemental property searches support property address, Parcel Number / APN and Tax Default Number where applicable.
Open the correct bill
Check whether you are viewing an annual secured bill, supplemental bill or delinquent balance before paying.
Verify the property description
Orange County specifically warns taxpayers to verify the property before remitting payment because the Tax Collector is not responsible for a payment made to the wrong property.
Pay and save the confirmation number
A successful online transaction generates a confirmation. If you do not receive a confirmation number, do not assume the payment was completed.
Have the APN or property address ready.
2026-27 secured taxes
Orange County California Property Tax Due Dates
Secured real-property taxes use two installments. The “due” date and the date after which a penalty applies are not the same.
Delinquent secured property taxes become tax-defaulted after the fiscal year ends. Beginning July 1, Orange County adds a $15 redemption fee and penalties of 1.5% per month to qualifying unpaid secured taxes.
Rate explained
What Is the Orange County California Property Tax Rate?
There is no single exact Orange County rate for every parcel. Proposition 13 provides a 1% basic levy, but the final bill can also contain voter-approved bonded indebtedness, special assessments, Mello-Roos charges and other parcel-specific items.
That is an average—not a guaranteed parcel rate. The Assessor gives an example of $250,000 Taxable Value at a 1.15% total tax rate producing $2,875 in property taxes. Your parcel’s actual rate can differ.
Orange County property-tax estimate
Enter your taxable value and the total tax rate shown for your tax-rate area. This is an educational estimate and may not include separately stated assessments.
California assessment system
How Proposition 13 Affects Your Orange County Property Taxes
Proposition 13 is one reason two similar Orange County homes can have very different taxable values and property-tax bills.
A reassessable change in ownership generally creates a new base year value based on market value at the transfer date.
The Factored Base Year Value normally increases by the applicable inflation factor, not more than 2% per year.
Change in ownership and taxable new construction can create a new or additional assessed value.
What is Proposition 8 decline-in-value relief?
Proposition 8 permits a temporary reduction when the property’s January 1 market value is below its Proposition 13 Factored Base Year Value.
Because a Proposition 8 value tracks market value, it can later increase by more than 2% in one year as the market recovers, but it cannot exceed the applicable Proposition 13 Factored Base Year Value.
Homeowner savings
California Homeowners’ Exemption in Orange County
Orange County says the Homeowners’ Exemption can save at least $70 per year by reducing taxable assessed value by $7,000 for an eligible principal residence.
You may qualify if you own the home, occupy it as your principal residence at 12:01 a.m. on January 1, do not claim another Homeowners’ Exemption elsewhere, and submit the required claim.
Orange County says qualified homeowners filing after February 15 but by December 10 may still receive 80% of the full exemption, or $5,600 of exempt assessed value.
Once approved, you generally do not need to reapply every year as long as you continue to own and occupy the property as your principal residence. A later change in title can sometimes require a new claim.
Orange County Assessor exemption phone: 714-834-3821.
Especially important for buyers
Why Did I Receive a Supplemental Property Tax Bill?
A supplemental bill is separate from the regular annual secured property-tax bill. It usually follows a reassessable change in ownership or taxable new construction.
Usually one supplemental assessment
Orange County says ownership changes or completed construction during this period generally affect one fiscal year.
You may receive two supplemental assessments
One can cover the remainder of the current fiscal year and another the upcoming fiscal year.
Supplemental bills are often not impounded
The Assessor warns that supplemental taxes are typically paid directly by the new owner and may not be included in the lender’s impound account.
If you recently purchased a home, check the supplemental bill directly and contact your lender to determine whether your particular impound account will pay it.
Supplemental bill due dates depend on when the bill is mailed
| Bill Mailed | First Installment | Second Installment |
|---|---|---|
| July 1-October 30 | Normally delinquent after December 10 | Normally delinquent after April 10 |
| November 1-June 30 | Last day of month following mailing month | Last day of fourth month after first installment was due |
Always use the exact dates printed on the supplemental tax bill.
Know the bill type
Secured, Unsecured & Supplemental Property Taxes
Real-estate property tax
Secured property taxes are generally backed by the real property itself and include land and improvements.
Tax not secured by real property
This can include taxable business personal property, boats, aircraft and certain other assessments. Orange County’s current 2026 unsecured due date is August 31.
One-time value adjustment
Generated after qualifying ownership changes or completed new construction to place the reassessment into effect without waiting for the next annual roll.
If secured taxes are unpaid
Delinquent Taxes & Orange County’s Five-Year Payment Plan
Current-year secured taxes cannot simply be converted immediately into the county’s five-year redemption plan. The secured taxes first have to become prior-year delinquent taxes.
Orange County adds a $15 redemption fee and 1.5% per month penalties on qualifying unpaid secured taxes after default.
Five-Year Installment Plan of Redemption
Orange County allows eligible prior-year delinquent secured taxes to be paid under an installment plan lasting up to five years. To open a plan, the county currently requires:
- A completed Five-Year Payment Plan application.
- An initial payment of at least 20% of the redemption amount.
- A $25 setup fee.
- Certified funds for the initial required payment.
- Current-year property taxes to remain paid separately.
You must continue paying current taxes separately while also making the required redemption-plan payments. Failing to keep current taxes or required plan payments current can default the installment plan.
Property generally becomes subject to the Tax Collector’s Power to Sell after five or more years have elapsed since the taxes became delinquent. Do not wait until the fifth year to investigate payment options.
Tax Collector phone: 714-834-3411.
If the assessed value looks wrong
Property Value Review & Assessment Appeals
The Treasurer-Tax Collector cannot lower your assessed value. Start with the Orange County Assessor if you disagree with the taxable value.
Ask the Assessor to explain the value and any ownership or construction event that affected it.
Exemptions are administered by the Assessor.
The Auditor-Controller determines rates and computes property-tax amounts.
Bill copies, payment status and prior-year delinquency are Tax Collector functions.
Orange County currently states that annual assessment appeals can be filed during this window. If your concern is not resolved with the Assessor, contact the Assessment Appeals Division for filing instructions.
Orange County’s supplemental-tax guidance specifically warns that property taxes remain payable even when an assessment appeal has been filed. Pay attention to the bill’s deadline while the value dispute is pending.
Official tax-payment office
Orange County California Treasurer-Tax Collector Contact
Shari L. Freidenrich
Property Tax Phone:
714-834-3411
601 North Ross Street
Santa Ana, CA 92701
Customer service: Mon-Fri, 9 a.m.-5 p.m.
AskTaxCollector@octreasurer.gov
The county’s current contact page lists the physical office Monday-Friday, 8 a.m.-5 p.m., while property-tax customer service representatives are listed as available 9 a.m.-5 p.m. Check current holiday and service notices before visiting.
Quick answers
Orange County California Property Tax FAQs
How do I look up Orange County California property taxes?
Use the Orange County Treasurer-Tax Collector’s tax-bill system at TaxBill.octreasurer.gov. For secured or supplemental real-estate bills, search by property address, APN or applicable Tax Default Number.
When are Orange County CA secured property taxes due?
The first installment is due November 1 and normally becomes delinquent after December 10. The second installment is due February 1 and normally becomes delinquent after April 10. Weekend and legal-holiday rules can shift the last timely payment date to the next business day.
What is the property tax rate in Orange County California?
Proposition 13 provides a 1% basic property-tax levy plus additional rates needed for voter-approved bonded indebtedness. Special assessments and Mello-Roos charges may also apply. Orange County says tax rates average approximately 1.1%, but the exact amount is parcel-specific.
Does Proposition 13 mean my property taxes can never increase more than 2%?
No. Proposition 13 generally limits annual increases in the Factored Base Year Value to no more than 2%, but reassessable ownership changes, new construction and recovery from a temporary Proposition 8 reduced value can produce larger changes in taxable value.
What is the Orange County Homeowners’ Exemption?
Qualifying owners who occupy the property as their principal residence can receive a $7,000 reduction in assessed value. Orange County says this saves at least $70 annually. February 15 is the deadline for the full exemption.
Why did I receive a supplemental property tax bill after buying a home?
A qualifying change in ownership generally causes the Assessor to establish a new base year value at current market value. A supplemental assessment captures the difference between the prior enrolled value and the new value for the applicable portion of the fiscal year.
Why did I receive two supplemental tax bills?
Orange County says an ownership change or completed new construction between January 1 and May 31 can affect two fiscal years, resulting in two supplemental assessments.
Is there a fee to pay Orange County property tax online?
Online eCheck currently has no service fee. Orange County’s current credit/debit card fee is 2.25% with a $1.50 minimum. The processor charges that fee; the county states it does not receive any part of it.
What happens when Orange County secured property taxes become delinquent?
A 10% penalty applies after the applicable installment delinquency date, and the second installment also carries a $23 collection cost. After tax default, additional redemption charges and 1.5% monthly penalties can accrue. Eligible prior-year delinquent taxes may qualify for a five-year installment plan.
Who do I contact if my Orange County assessed value is wrong?
Contact the Orange County Assessor at 714-834-2727 for real-property value questions. The Treasurer-Tax Collector handles billing and payment, not the underlying assessed value. If the value dispute cannot be resolved, an assessment appeal may be available.
Live verification
Official Orange County California Property Tax Resources
The actionable information is included above. Use these official county and California pages when you need a live bill, exact parcel-specific amount, current filing form or deadline verification.
Start with the bill—then identify which number is actually wrong
If you only need to pay, use the Treasurer-Tax Collector’s official tax-bill system. If the taxable value looks wrong, contact the Assessor. If the rate calculation is the problem, the Auditor-Controller handles tax-rate computation. And if you recently bought the property, check for a separate supplemental bill even when your lender already pays the regular annual taxes.