California Property Tax Due Dates: Pay Online, Look Up Your Bill & Estimate What You Owe
California property tax is handled by county tax collectors, but the most searched deadlines are statewide: first installment due November 1 and delinquent after December 10; second installment due February 1 and delinquent after April 10. This guide explains how to check your bill, pay through the correct county, calculate a rough estimate, and avoid penalties.
🔒 Official California Property Tax Resources
California Property Tax Due Dates for Annual Secured Bills
Most California homeowners are searching for annual secured property tax due dates. These are the regular tax bills tied to real property such as land, homes, condos, and buildings.
| Installment | Due Date | Delinquent After | Best Action |
|---|---|---|---|
| First installment | November 1 | December 10 | Pay early through your official county tax collector website. |
| Second installment | February 1 | April 10 | Do not wait for a second bill; use the annual bill or county lookup portal. |
| Both installments | Can often be paid together | Each installment has its own deadline | Confirm tax year, parcel/APN, and installment before paying. |
| Weekend or holiday | County rules apply | Often next business day when deadline falls on weekend/holiday | Confirm exact cutoff with your county tax collector. |
How to Look Up a California Property Tax Bill Online
California tax bill lookup is county-based. The exact search options vary, but most county portals allow searches by APN, parcel number, property address, bill number, or sometimes owner name.
1
Find your official county tax collector website
Use the county where the property is located.
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Start with the California County Websites Directory, then open your county’s official website and look for the Tax Collector, Treasurer-Tax Collector, Revenue & Taxation, or Property Tax section.
2
Use APN or parcel number first
APN is usually the cleanest search detail.
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Enter the APN, parcel number, or assessor’s parcel number from your tax bill. Address searches can fail because of unit numbers, abbreviations, directional words, or mailing address differences.
3
Match the tax year and installment
Do not pay the wrong year or installment.
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Before paying, verify whether the bill is annual secured, supplemental, unsecured, delinquent, first installment, or second installment. Save the parcel/APN, amount, tax year, and installment before you submit payment.
4
Use the assessor for value questions
Tax collectors collect taxes; assessors handle value records.
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If the assessed value, ownership, exemption, or property classification looks wrong, contact your county assessor instead of the payment office. For statewide property tax background, use the California BOE property tax information page.
How to Pay California Property Tax Online Safely
Payment should always go through the official county tax collector or treasurer-tax collector for the county where the property is located. Do not enter payment details on a random bill-pay site unless it is linked from the official county page.
1
Open your county’s official tax collector page
County payment portals vary across California.
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Use the official county directory to find your county website. From there, navigate to the tax collector or property tax payment section. Check that the page is linked from the county website before entering bank or card details.
2
Confirm parcel, tax year, and installment
This prevents wrong-property and wrong-year payments.
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Match the APN or parcel number, owner/property address, tax year, first or second installment, amount due, penalty amount, and payment fee before submitting. If you own multiple properties, verify the parcel carefully.
3
Review payment method and processing fee
Fees vary by county and payment processor.
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County portals may offer eCheck, credit card, debit card, mail, in-person, drop box, or wire options. Card payments often have processor fees. eCheck may be cheaper, but wrong bank details can cause failed payment problems.
4
Save proof immediately
You may need it if posting is delayed.
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Download or screenshot the confirmation number, date, amount, parcel/APN, installment, and payment method. If your county portal says payment may take time to post, keep the confirmation until the bill shows paid.
| Payment Method | Best For | Important Tip |
|---|---|---|
| County online portal | Fast payment and confirmation | Use only the official county tax collector link. |
| eCheck | Bank account payment | Verify routing number, account number, and account type. |
| Credit/debit card | Card users who accept processor fees | Review the convenience fee before submitting. |
| Check or money order users | Use bill instructions and allow time for postmark/delivery rules. | |
| Mortgage escrow | Owners whose lender pays taxes | Still check the county portal to confirm payment posted. |
How to Estimate California Property Tax Before You Pay
California property tax is often summarized as “about 1%,” but your actual bill can be higher because of voter-approved debt, direct assessments, parcel taxes, Mello-Roos, special districts, and local charges.
1% base tax
Proposition 13 generally starts with a 1% base tax on assessed value, not necessarily today’s market value.
Assessed value
Assessed value can differ from purchase price or market value and may change after ownership transfer or new construction.
Local charges
Bonds, parcel taxes, Mello-Roos, direct assessments, and special district charges can increase the final bill.
| Calculation Step | What It Means | Example |
|---|---|---|
| 1. Find assessed value | Use county assessor or property tax bill. | $600,000 assessed value. |
| 2. Apply 1% base | General California base property tax estimate. | $600,000 × 1% = $6,000. |
| 3. Add local charges | Bonds, parcel taxes, direct assessments, Mello-Roos, districts. | Final bill may be higher than $6,000. |
| 4. Compare official bill | County tax bill is the controlling amount. | Use the tax collector’s bill before paying. |
California Property Tax Penalties, Late Payments and Delinquency Problems
If you miss a property tax deadline, act quickly. Counties apply penalties and may add costs according to tax type, installment, delinquency status, and how long the bill remains unpaid.
| Problem | What It Usually Means | What to Do |
|---|---|---|
| First installment paid after Dec 10 | Penalty may be added. | Pay through the county tax collector and save confirmation. |
| Second installment paid after Apr 10 | Penalty and costs may be added. | Use official county payoff amount before paying. |
| Payment did not post | Bank issue, processor delay, wrong APN, or failed transaction. | Contact county tax collector with confirmation number. |
| Mortgage company did not pay | Escrow issue or lender payment delay. | Call lender and county tax collector with escrow proof. |
| Old delinquent taxes | Prior-year balance may require redemption payoff. | Use the county’s delinquent tax or redemption instructions. |
Supplemental, Unsecured and Escrow Property Tax Bills in California
Not every California property tax bill follows the regular November/December and February/April schedule. Supplemental and unsecured bills can surprise new buyers, business owners, and escrow customers.
Supplemental bills
Common after a property changes ownership or new construction is completed. Due dates are printed on the supplemental bill.
Unsecured bills
Can apply to business personal property, boats, aircraft, or property not secured by real estate. Deadlines differ from secured bills.
Escrow issues
Mortgage escrow may pay annual secured tax but not always every supplemental or special bill. Verify with your lender.
1
Read the bill type before paying
Secured, supplemental, and unsecured bills are different.
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Look at the top of the bill and identify whether it is an annual secured bill, supplemental bill, unsecured bill, escape assessment, corrected bill, or delinquent notice. Do not assume the annual secured due dates apply to every bill.
2
Check the printed delinquency date
Special bills can use bill-specific deadlines.
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For supplemental or unsecured bills, use the due and delinquency dates printed on the bill or shown by your county tax collector. If you recently bought a property, watch for supplemental bills after closing.
3
Ask your lender what escrow actually covers
Escrow does not always mean every tax bill is paid automatically.
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If your mortgage servicer pays property tax, ask whether it pays only annual secured taxes or also supplemental taxes. Compare lender escrow records with your county tax collector payment status.
California Property Tax Exemptions, Relief and Postponement Help
If your bill seems too high, check whether exemptions, assessment limits, postponement programs, or disaster-related relief may apply. Rules and forms depend on your situation and county.
| Program / Issue | Who It May Help | Where to Start |
|---|---|---|
| Homeowners’ Exemption | Owner-occupied primary residence. | County assessor and California BOE property tax info. |
| Disabled Veterans’ Exemption | Qualified disabled veterans or eligible survivors. | County assessor and state guidance. |
| Property Tax Postponement | Eligible seniors, blind, or disabled homeowners who meet program rules. | California State Controller Property Tax Postponement. |
| Assessment appeal | Owners who believe assessed value is wrong. | County assessment appeals board / clerk route. |
| Disaster relief | Properties damaged by qualifying disasters. | County assessor and official county/state disaster instructions. |
Map Reference for California State Board of Equalization
California property tax payment is county-based, but the State Board of Equalization provides statewide property tax information. For bill payment, always use your county tax collector.
California Property Tax Tips That Prevent Penalties, Wrong Payments and Escrow Confusion
These tips help homeowners, new buyers, landlords, escrow users, seniors, and business property owners avoid common California property tax mistakes.
Mark four dates, not two
Remember both due dates and delinquency dates: November 1, December 10, February 1, and April 10.
Use APN instead of address
APN/parcel searches are usually more reliable than address searches, especially for condos, new homes, and multi-unit properties.
Do not assume escrow paid everything
Mortgage escrow may not automatically handle supplemental bills. Always check county payment status after purchase.
Read supplemental bills carefully
Supplemental tax bills have their own due dates and can arrive after closing or new construction.
Use current payoff for delinquent taxes
If taxes are late, look up the current county amount before paying because penalties and costs may have changed.
Separate value disputes from payment
If you disagree with assessed value, ask about appeal rights, but also confirm whether payment is still required by the deadline.
California Property Tax Due Dates, Payment, Lookup and Calculation FAQs
These FAQs focus on the real questions behind “California property tax due dates”: when to pay, where to pay, how to look up the bill, what happens if late, and how to calculate an estimate.
QWhen are California property taxes due?▾
For annual secured property taxes, the first installment is due November 1 and becomes delinquent after December 10. The second installment is due February 1 and becomes delinquent after April 10. Confirm exact cutoff rules with your county tax collector.
QWhere do I pay California property taxes online?▾
Pay through your county tax collector or treasurer-tax collector. Use the California county websites directory to find your county’s official site, then navigate to the property tax payment page.
QHow do I look up my California property tax bill?▾
Use your county tax collector’s bill lookup tool. Search by APN, parcel number, bill number, or property address. For assessed value or ownership questions, use your county assessor.
QWhat happens if I miss the December 10 deadline?▾
The first installment usually becomes delinquent and penalties may be added. Contact your county tax collector and pay the current amount shown by the official county system.
QWhat happens if I miss the April 10 deadline?▾
The second installment usually becomes delinquent and penalties or costs may be added. Use the official county tax collector’s current payoff amount before paying.
QHow are California property taxes calculated?▾
California property tax generally starts with a 1% base tax on assessed value under Proposition 13, plus voter-approved debt, parcel taxes, special assessments, Mello-Roos, and local direct charges.
QDo supplemental property tax bills have the same due dates?▾
No. Supplemental bills have their own due and delinquency dates printed on the bill. They commonly happen after a property changes ownership or new construction is completed.
QWho handles California property tax exemptions?▾
Your county assessor usually handles exemption applications and assessment questions. For statewide information, start with the California State Board of Equalization property tax page.
QCan seniors postpone California property taxes?▾
Some eligible seniors, blind, or disabled homeowners may qualify for California’s Property Tax Postponement Program. Start with the official State Controller Property Tax Postponement page.
QIs PropertyTaxUSA.org the official California property tax website?▾
No. PropertyTaxUSA.org is an independent informational guide. Always confirm official payment amounts, due dates, penalties, exemptions, appeal deadlines, and county payment portals directly with official county or California government resources.
Final Takeaway
For most California annual secured property tax bills, remember the key dates: first installment due November 1 and delinquent after December 10; second installment due February 1 and delinquent after April 10. For lookup and payment, use your official county tax collector. For assessed value and exemptions, use your county assessor and statewide guidance from the California State Board of Equalization.
Independent guide notice: PropertyTaxUSA.org is not affiliated with the State of California, California State Board of Equalization, California State Controller, any county tax collector, county assessor, or government agency. Always confirm current balances, payment portals, deadlines, fees, penalties, exemptions, and official rules directly with official government resources.