Homeowners in Los Angeles and Orange counties have until the close of business on Thursday, Dec. 10, to pay the first installment of their 2026-27 secured property tax bill before penalties begin. The installment is technically due Sunday, Nov. 1. Neither county treats it as late until the December date passes.
Orange County’s bills are already online, and Los Angeles County says it mails its bills in October. The gap between the due date and the cutoff is about five and a half weeks.
Orange County: online now, 10% penalty after Dec. 10
The Orange County Treasurer-Tax Collector’s homepage says the 2026-27 secured bills are now online, searchable by address or assessor parcel number or by scanning the QR code on the bill. The first installment is due Nov. 1 and “must be paid by Dec. 10 to avoid penalties.” The county treasurer is Shari L. Freidenrich.
A 10% penalty applies to a late first installment. A payment counts as on time if it is postmarked by Dec. 10, received by the office by that date or submitted online by midnight that day. An eCheck payment through the county’s online system is free and gets same-day credit, with a printable or emailed receipt.
For homeowners, the question is simple and the answer is date-specific. When is the first installment due, and is any senior relief available? In both counties the first installment is due Nov. 1 and goes delinquent after Dec. 10. Homeowners on a fixed income should confirm which exemptions already appear on the bill before they pay.
What changed this year: Social Security and Medicare change every year, and nobody sends you a memo. The Retirement Money Brief breaks down what changed and what to do. Bonus when you subscribe: our Property Tax & Utility Relief Finder.
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Los Angeles County: bills in October, a duplicate if one is missing
The Los Angeles County Treasurer and Tax Collector’s secured property tax page says the annual bills are prepared and mailed in October. The first installment is due Nov. 1 and delinquent after close of business Dec. 10. The second is due Feb. 1 and delinquent after April 10, and it carries added costs on top of penalties if paid late.
A homeowner who has not received a bill can request a duplicate through the county’s site, or look up the amount with the Assessor’s Identification Number. Electronic payments use a six-character personal identification number printed in the upper left corner of the bill. The county also offers installment plans for secured taxes, though its page does not describe the terms.
Dec. 10 is a Thursday, and it is not on the county’s list of holidays that shift deadlines. That list names Jan. 1, June 19, July 4, Nov. 11 and Dec. 25, with a Friday or Monday substitute when one falls on a weekend. Nothing moves the cutoff.
The county page does not give a penalty percentage for Los Angeles. It states only that each installment is subject to penalties if not received by the due date, so the Orange County rate of 10% cannot be applied to a Los Angeles bill from that page alone.
The $7,000 homeowners’ exemption
Orange County’s homepage also offers a supplemental tax estimator, a tool aimed at buyers who expect an extra bill after a purchase. The page does not explain how supplemental bills are issued or paid, so new owners should look for that notice separately.
The state’s one broad break for owner-occupied homes is the homeowners’ exemption. The California Board of Equalization’s exemption page describes a $7,000 reduction in taxable value for a home that is the owner’s principal residence on the Jan. 1 lien date. Owners claim it once by filing Form BOE-266 with the county assessor.
First-time filers can file once they become eligible, but no later than Feb. 15 to receive the full exemption for that year. An owner who stops qualifying must tell the assessor, and Dec. 10 is the last day to end the exemption without penalty. The state page gives no dollar savings figure, so the value of the break depends on the local tax rate.
The Los Angeles County Assessor, Jeff Prang, lists a help desk at 213-974-3211 for exemption questions.
Seniors and renters: reading the bill for what it already includes
Neither county’s treasurer page lists senior-specific relief. The State Controller’s property tax postponement program serves seniors, blind and disabled homeowners with household income of $45,000 or less and at least 40% equity, but its page lists only the 2020-21 filing window. That leaves the exemption on the assessor’s side as the break with current dates. A homeowner who sees a line for it on the bill has it. One who does not should ask the assessor, not the treasurer.
The treasurer’s office collects whatever the assessor has put on the roll, and it cannot change the amount. Disputes about value go to the assessor, and payment questions go to the treasurer. Sorting those two out early avoids a late fee on money that was never owed.
The deadline itself does not move. For a household that wants the first installment behind it, the practical choices are online payment before midnight on Dec. 10, a mailed check postmarked by that day or a visit to the county’s payment options. The open question for the many homeowners who pay through a mortgage servicer is whether the escrow account has already sent the money.
Still holding a 2026-27 secured bill on Dec. 9?
A first installment that goes delinquent after Dec. 10 draws a 10% penalty in Orange County, and a missed exemption means paying tax on value the state would have excluded. Both are mistakes that cost real money and are hard to see on a long bill.
The Senior Property Tax & Home-Cost Relief Kit lays out the five kinds of property-tax relief and the circuit-breaker credit that includes renters, with the contacts to claim each one. Part 2 walks through reading the tax bill line by line, and the kit includes an application log and renewal calendar.
Get the property-tax relief kit and bill-reading guide before the Dec. 10 cutoff →
More Financial Reading
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- 17 Medicare Money Moves Now That Part D Caps at $2,400
This article was produced with the assistance of AI and reviewed by the editorial team.
David M. Keller is a finance writer based in Columbus, Ohio, covering personal finance and consumer-focused economic topics. He earned his degree in journalism from Ohio University and began his career reporting on local business and economic trends for a regional media outlet. Since then, he has contributed to a variety of online publications, focusing on clear, practical coverage of topics such as cost of living, debt, and everyday financial decision-making.
