Los Angeles County property tax due dates for 2026–27
Homeowners · Buyers · Investors · Updated November 2026
Los Angeles County property tax is paid in two installments. Here are the 2026–27 dates, what happens if you miss one, and the supplemental bill that surprises new buyers.
The first installment of the 2026–27 annual bill was due November 1, 2026 and must be paid by Thursday, December 10, 2026. The second installment is due February 1, 2027 and must be paid by Monday, April 12, 2027 (April 10 falls on a Saturday, so the deadline moves to the next business day). Dates and rules on this page come from the Los Angeles County Treasurer and Tax Collector; check your own bill for the amount and parcel number.
2026–27 property tax calendar
| Date | What happens |
|---|---|
| October 2026 | Annual secured tax bills are mailed |
| November 1, 2026 | First installment due |
| December 10, 2026 | Last day to pay the first installment without a 10% penalty |
| February 1, 2027 | Second installment due |
| April 12, 2027 | Last day to pay the second installment without a 10% penalty and $10 cost |
| June 30, 2027 | Unpaid taxes default on July 1, with a $15 redemption fee and 1.5% per month |
How to pay
- Online at the Treasurer and Tax Collector’s site, until 11:59 p.m. Pacific time on the deadline. eCheck is free; cards carry a service fee.
- By phone with a credit or debit card, using the AIN, year and sequence number from your bill.
- By mail to the address printed on your bill. Mail early, because the postmark has to be dated on or before the deadline.
- In person at the Kenneth Hahn Hall of Administration, 225 N Hill St, Los Angeles, weekdays 8 a.m. to 5 p.m.
Bought a home this year? Watch for the supplemental bill
Under Proposition 13, a home is reassessed when it changes hands. The county works out the difference between the seller’s old assessed value and your purchase price, and sends a supplemental bill for the rest of the tax year. If you closed between January 1 and May 31, you will get two supplemental bills.
These bills often arrive six months or more after closing and are not paid from most impound accounts. Ask Rana for an estimate before you close so the bill is not a surprise. The county’s Supplemental Tax Estimator gives a rough number.
Selling an inherited home? See probate and trust sales. Thinking about what your home is worth now? Ask for a free home evaluation.
Property tax questions
When are property taxes due in Los Angeles County?
The annual secured tax bill comes in two installments. The first is due November 1 and becomes delinquent after December 10. The second is due February 1 and becomes delinquent after April 10. For 2026–27, April 10, 2027 is a Saturday, so the second-installment deadline moves to Monday, April 12, 2027.
What is the penalty for paying LA County property tax late?
A 10% penalty is added to an installment that is not paid by its delinquency date. A late second installment also gets a $10 cost. Taxes still unpaid after June 30 go into default on July 1, with a $15 redemption fee and a penalty of 1.5% per month on the base tax.
Does a postmark count?
Yes. A payment counts as on time if the county receives it, or the US Postal Service postmarks it, by the delinquency date. The county warns that some postage types do not get a same-day postmark, so paying online is safer close to the deadline.
What is a supplemental property tax bill?
When you buy a home or finish new construction, the property is reassessed as of the first day of the next month. The county then sends one or two supplemental bills for the difference between the old and new value. These usually arrive months after closing, and most lenders do not pay them from an impound account, so the owner pays them directly.
Can I pay both installments at once?
Yes. You can pay the full year when the bill arrives in the fall, or pay each installment separately by its own deadline.
Does my lender pay my property tax?
If your loan has an impound (escrow) account, the lender pays the annual bill for you. Supplemental bills are usually not covered. See Rana’s guide to impounded vs non-impounded property taxes.
This page is general information, not tax or legal advice. For your own bill, contact the Los Angeles County Treasurer and Tax Collector or your tax advisor.
Buying or selling a home in Los Angeles?
Rana Khanjani helps buyers plan for closing costs and supplemental taxes, and helps sellers price and prepare their home. She works in English and Farsi.
Rana Khanjani, MBA | REALTOR® & Real Estate Investor
Sync Brokerage · DRE #02021891