Most California homeowners know their property tax bill is coming. Far fewer know exactly when it is due, what happens if they miss it, or how to read the numbers on the bill itself.
California property taxes are billed annually but paid in two separate installments. Each installment has its own due date and its own penalty for late payment. Confusion about these dates costs California homeowners millions of dollars in avoidable penalties every year.
California secured property taxes are split into two installments each fiscal year. The fiscal year runs from July 1 through June 30 of the following calendar year.
The first installment covers July 1 through December 31. It is due November 1 and becomes delinquent after December 10.
The second installment covers January 1 through June 30. It is due February 1 and becomes delinquent after April 10.
If December 10 or April 10 falls on a weekend or official holiday, the delinquency date moves to the next business day. That grace period is not guaranteed and should not be relied upon as extra time.
A simple way to remember this: November and February are when bills come due. December and April are when you get penalized for not paying. In California real estate circles, the shorthand is “November through February, December through April.”
Property owners in California should know every key date in the property tax calendar. Here is how the 2025 to 2026 tax year breaks down from start to finish.
July 1 marks the start of the California property tax fiscal year. Your assessed value as of January 1 of that calendar year determines your tax for this entire year. The county assessor’s office uses that lien date value to calculate what you owe.
Most California counties mail the annual property tax bill in late July or early August. In Los Angeles County, bills are typically mailed in early October. Santa Clara County sends them in October as well. Always check your specific county treasurer and tax collector website for exact mailing timelines.
The bill shows both installments on one document. You are not required to pay both at once. Most homeowners pay each installment separately by its own deadline.
The first installment of your secured property tax bill is due on November 1. This covers the first half of the tax year, July through December. Pay it in full by December 10 to avoid the 10 percent penalty.
December 10 is the hard deadline for the first installment. If your payment is not received by the close of business on December 10, a 10 percent penalty attaches automatically. There is no warning. There is no second chance.
Online payments must be submitted and confirmed before midnight on December 10. Mailed payments must be postmarked by December 10. If you mail your payment on December 9 and the post office stamps it December 11, you owe the penalty.
January 1 is the California property tax lien date. The value of your property on this date determines your assessed value for the following tax year. Any ownership changes, new construction, or significant damage occurring before January 1 can affect next year’s tax bill.
The second installment covers January through June. It is due February 1. Many homeowners confuse this installment with a new tax bill. It is not. It is the second half of the same annual bill you received the previous fall.
The second installment must be paid by April 10. Miss this date and the same 10 percent penalty applies, plus a separate $10 cost. For high-value properties, the penalty amount is substantial.
Counties publish lists of delinquent taxpayers in local newspapers in May. This is a public record. In July, properties with five or more years of unpaid taxes become eligible for tax sale by the county. Unsecured tax bills for business personal property are also mailed in July.
June 30 closes the current fiscal year. Any unpaid secured taxes from this year carry forward with additional penalties. The cycle then resets on July 1.
California Revenue and Taxation Code Section 2605 establishes the two-installment system for secured property taxes. The structure exists to give property owners a more manageable payment schedule rather than requiring the full annual amount at once.
The term “secured” refers to the fact that the tax is secured by the real property itself. If the tax goes unpaid, the county has a lien against the property. Unsecured taxes, such as those on boats, aircraft, and business personal property, follow a different schedule.
Missing a property tax deadline in California is expensive. The penalty structure is strict and the county applies it automatically. No discretion is exercised at the staff level for routine late payments.
A 10 percent penalty is added to any installment not paid by its delinquency date. This applies immediately, on the date after the deadline. For a property with a $7,000 annual tax bill, each installment is $3,500. The penalty on a missed deadline is $350 per installment.
For a home near Rodeo Drive in Beverly Hills assessed at several million dollars, the annual tax bill might exceed $40,000. A single missed installment triggers a $2,000-plus penalty overnight.
The second installment carries an additional $10 delinquency cost on top of the 10 percent penalty. This is established under California Revenue and Taxation Code Section 2617. It is a flat fee, not a percentage, so it applies equally regardless of property value.
If taxes remain unpaid past June 30 of the fiscal year in which they were due, they become defaulted. At that point, a 1.5 percent per month redemption penalty begins accruing on the outstanding balance. This compounds monthly. After five years, the county can initiate tax sale proceedings.
The combination of the original 10 percent penalty, the $10 cost, and 18 percent per year in redemption penalties can make an originally manageable tax debt extremely difficult to pay off.
Not receiving your bill is not a valid excuse for late payment in California. This is explicitly stated in California Revenue and Taxation Code Section 2610.5.
The law places the responsibility on the property owner to know when taxes are due and to pay them on time. If you moved and did not update your mailing address with the county assessor, your bill went to your old address. The penalty still applies.
If you recently purchased a home and your escrow did not set up an impound account for property taxes, you are responsible for paying the taxes yourself. New buyers in markets like Pasadena, Irvine, or the Sacramento suburbs are sometimes caught off guard when their first tax bill arrives and they have not budgeted for it.
If you believe you should have received a bill and did not, contact your county treasurer and tax collector immediately. You can look up your parcel number and outstanding taxes online through the county’s property tax portal. Do this well before the December 10 deadline, not after.
It is possible but not guaranteed. California counties can waive penalties in limited circumstances under Revenue and Taxation Code Section 4985.2. To qualify, your late payment must have been caused by one of the following:
Forgetting to pay is not an acceptable reason for a penalty waiver. Neither is claiming you did not know the deadline. The application for a penalty waiver must be submitted in writing to the county tax collector with supporting documentation. Approval is not automatic.
Wildfire victims in California have historically received special consideration. The 2025 Palisades and Eaton fires prompted Los Angeles County to implement extended penalty waivers for affected property owners in qualifying ZIP codes. Check with the LA County Treasurer and Tax Collector at ttc.lacounty.gov for current wildfire relief measures.
California property taxes are collected at the county level. Each county operates its own tax collector’s office with its own payment portal. The method you use to pay determines how your payment is processed and what counts as the payment date.
Most California counties accept electronic check payments through their online portals. In Los Angeles County, this is done through the Treasurer and Tax Collector website at ttc.lacounty.gov. An eCheck pulls funds directly from your bank account and is typically the lowest-cost option, often free.
Your payment is considered received on the date you submit it, as long as the bank honors it. If the eCheck is returned, your payment is voided and the original deadline is missed, triggering the penalty. Always verify that the bank account information you entered is correct before submitting.
Most counties accept credit and debit card payments online. A convenience fee, typically around 2.3 percent of the payment amount, applies. For a $3,500 installment, that fee is roughly $80. The fee goes to the payment processor, not the county.
Using a rewards credit card for property taxes can offset the convenience fee if your card earns enough cash back or points. But pay the card balance in full before interest accrues or the math works against you quickly.
Mailed payments must be postmarked by the delinquency date. Use the payment stub from your tax bill and mail it with a personal check or money order. Certified mail with a return receipt gives you proof of postmark if a dispute arises.
Do not mail cash. Do not mail a payment without the payment stub. Always write your parcel number on your check. If you are paying both installments at once, include both stubs and separate checks. Some counties will not accept a single check for both installments.
You can set up your county tax collector as a payee in your bank’s online bill pay system. Be aware that bill pay services typically mail a physical check on your behalf. Allow seven to ten business days for delivery. A bill pay check arriving on December 12 is a late payment regardless of when you scheduled it.
Schedule bill pay payments at least two weeks before the deadline. If December 10 falls on a Monday, initiate your bill pay no later than the Monday before.
In-person payment is accepted at the county treasurer and tax collector office. In Los Angeles County, the main office is at 225 North Hill Street in downtown Los Angeles, near the civic center and across from Grand Park. Satellite payment locations exist at some branch offices.
Lines can be long near the December 10 and April 10 deadlines. If you plan to pay in person, go at least a week early. Payment on the day of the deadline in person is valid, but do not rely on it if office hours end before you arrive.
If you recently purchased a home in California with a mortgage, you may have an impound account, also called an escrow account, managed by your lender. The lender collects a portion of your estimated annual property tax with each monthly mortgage payment and pays the county on your behalf when the installments come due.
Do not assume your lender is automatically handling this. Confirm it in writing. Look at your mortgage statement and identify the impound line item. Call your lender’s escrow department and ask them to confirm that both installments are being paid from your account and that the tax amount on file is current.
When property is reassessed after a purchase, the supplemental tax bill that arrives is often not covered by your impound account. Supplemental bills are separate from the regular annual bill. Your lender will not typically pay these. You receive the bill and pay it directly. Missing a supplemental tax bill is a common mistake among first-time buyers in markets like the East Bay, the San Fernando Valley, and the Inland Empire.
When you buy a home in California, the county reassesses the property at its new purchase price. This happens under Proposition 13 rules. If the new assessed value is higher than the prior owner’s assessed value, you will receive a supplemental tax bill covering the difference for the remainder of the tax year.
The supplemental bill arrives separately from your regular annual bill. It covers a partial year and may arrive several months after your purchase. In Los Angeles County, supplemental bills are mailed by the Assessor after the reappraisal is complete, which can take three to six months after close of escrow.
Supplemental bills are also split into two installments if they cover more than half a tax year. Each installment has its own due date and delinquency date. Read the bill carefully. Do not assume the payment dates match the regular annual bill schedule.
If you bought a home in January and your purchase price was $200,000 above the prior assessed value, the supplemental tax bill could arrive in June for taxes covering January through June at the higher assessed value. This catches many buyers completely off guard.
Following the January 2025 Palisades and Eaton fires, Los Angeles County extended property tax payment deadlines and penalty waivers for property owners in directly impacted areas. Affected ZIP codes included portions of Pacific Palisades, Altadena, Pasadena, and surrounding communities along the 210 freeway corridor and the Santa Monica Mountains foothills.
For homeowners whose property was damaged or destroyed, the county offered a combination of extended deadlines, automatic penalty waivers, and expedited reassessment to lower the assessed value to reflect the damaged condition. Properties in eligible ZIP codes did not need to apply for the basic penalty waiver. It applied automatically.
Property owners outside the designated wildfire relief ZIP codes who still experienced financial hardship directly related to the fires could apply individually for a penalty waiver. Supporting documentation, such as evidence of displacement, business disruption, or loss of income related to the fire, was required.
Always check the LA County Treasurer and Tax Collector website at ttc.lacounty.gov and the LA County Assessor website at assessor.lacounty.gov for current relief measures. Relief programs change, and information circulating on social media or from third-party sources is often outdated.
Several California counties offer text or email reminder programs for property tax due dates. Los Angeles County’s Treasurer and Tax Collector provides this service. You enter your parcel number and contact information once. The system sends you reminders before each installment deadline.
This is one of the simplest ways to avoid a penalty. Set it up once and let it run every year. You can sign up at ttc.lacounty.gov for LA County. For other counties, check your county’s tax collector website for equivalent services.
You can also set your own calendar reminders. Put November 1, December 1 (as a pre-deadline alert), February 1, and April 1 (as a pre-deadline alert) in your phone. The reminder before the deadline gives you time to pay without rushing.
Orange County property owners can view and pay their tax bills online through the Orange County Treasurer-Tax Collector at ttc.ocgov.com. The site allows you to look up your parcel by address or APN, view your current and prior year bills, and make eCheck or card payments directly.
Property owners in communities along the 405 freeway corridor, in Anaheim, Irvine, Newport Beach, and Huntington Beach, can use the same portal regardless of city. Property taxes in California are administered at the county level, not the city level.
Orange County also offers a secured tax installment plan for qualifying low-income senior homeowners. Contact the Treasurer-Tax Collector directly at their offices on Harbor Boulevard in Santa Ana to ask about this option.
Proposition 13, passed by California voters in June 1978, fundamentally changed how property taxes are calculated across the state. It remains one of the most significant tax laws in California history.
Under Proposition 13, your property is assessed at its market value at the time of purchase. That base year value can increase by no more than 2 percent per year as long as you own the property. The base rate for calculating your tax bill is 1 percent of assessed value plus any voter-approved local bonds and assessments.
A homeowner who bought a home in Glendale in 2000 for $400,000 has a 2025 assessed value capped at roughly $590,000 after 25 years of 2 percent annual increases. A neighbor who bought the same home in 2023 for $1.2 million pays taxes based on $1.2 million immediately.
This creates large tax disparities between long-term owners and recent buyers. It also means your property tax amount is largely fixed once you buy, barring new construction or ownership change.
Proposition 19, which took effect February 16, 2021, significantly changed the rules for intergenerational property tax transfers. Before Prop 19, parents could transfer a primary residence and up to $1 million of other property to their children without triggering a reassessment.
Under Prop 19, a child who inherits a parent’s home can only retain the parent’s lower assessed value if the child makes that home their primary residence within one year. If the child uses the home as a rental or vacation property, the property is reassessed to current market value.
This is particularly impactful in high-value markets. A family home in Silver Lake or Brentwood purchased in 1990 for $350,000 might carry an assessed value of $550,000 today under Prop 13 limits. Its current market value might be $2.2 million. A child who inherits but does not move in would face reassessment to $2.2 million, tripling or quadrupling the annual tax bill.
Families dealing with inherited property should consult a California estate planning attorney and a CPA before making any decisions about the property. The one-year residency window moves quickly.
Unsecured property taxes apply to personal property that is not attached to real estate. This includes business equipment, boats, aircraft, and leasehold improvements. Unlike secured taxes, unsecured taxes are not backed by the real property itself.
Unsecured tax bills are mailed in July and are due by August 31. The delinquency date is August 31. A 10 percent penalty applies on September 1 for unpaid balances. An additional 1.5 percent per month accrues starting December 1 if the bill remains unpaid.
Business owners in California, particularly those with significant equipment, machinery, or leased property, should track both secured and unsecured tax deadlines separately. The unsecured August 31 deadline catches many small business owners off guard because it does not follow the November-December, February-April rhythm of secured property taxes.
Property taxes in California can feel manageable or burdensome depending on how you plan for them. A few practical steps make a real difference.
Yes. Condominiums and townhomes are assessed and taxed using the same rules as single-family homes. Each unit has its own Assessor’s Parcel Number, its own assessed value, and its own property tax bill. The owner of the unit is responsible for the tax, not the homeowners association.
HOA fees are separate from property taxes. Your HOA may include charges for services that overlap with some local special assessments on your tax bill, but they are not the same thing. Read both statements separately and understand what each charge covers.
Every California county provides online access to property tax records. You need your Assessor’s Parcel Number, which you can find on your current tax bill, your property deed, or through the county assessor’s online search tool.
Key county portals for the largest California counties:
If you are unsure which county your property falls in, use the California State Board of Equalization’s county locator at boe.ca.gov. Every county in California is listed with its contact information.
California property taxes are a predictable expense. The due dates do not change. The penalties are automatic. The rules are public and clearly published by every county.
The homeowners who pay penalties are almost always the ones who were unprepared, not the ones who could not afford to pay. A few minutes of calendar planning in October prevents a 10 percent penalty in December.
If your situation is more complex, whether you are dealing with an inherited property, a recent purchase with a pending supplemental bill, a wildfire-damaged property, or a potential assessment appeal, do not navigate it alone. A California-licensed property tax consultant, CPA, or real estate attorney can help you understand exactly where you stand.
The California State Board of Equalization publishes the California Property Taxpayers Bill of Rights, available at boe.ca.gov. It outlines every right you have as a property owner in this state. Read it at least once.
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