Los Angeles County Property Tax: First Installment Is Due November 1, and December 10 Is the Deadline That Carries a Penalty
The Los Angeles County Treasurer and Tax Collector mailed about 2.4 million 2026-27 annual secured property tax bills on or before November 1. The first installment is due today, and it becomes delinquent after the close of business on Thursday, December 10, with a 10 percent penalty.
Los Angeles County property owners owe the first installment of their 2026-27 annual secured property tax bill starting Sunday, November 1, according to the Los Angeles County Treasurer and Tax Collector, which said it would mail approximately 2.4 million bills on or before that date to the addresses on the tax roll. State law does not excuse a late payment because a bill never arrived, the office noted.
The date that carries a penalty is Thursday, December 10: the first installment becomes delinquent after the close of business that day, and a 10 percent penalty is imposed under state law. The second installment is due Monday, February 1, 2027, and becomes delinquent after the close of business on Monday, April 12, 2027 — the date moves because April 10 falls on a Saturday — with a 10 percent penalty plus a $10 cost.
Owners can view their bill and pay by electronic check at no cost through the county's property tax portal at propertytax.lacounty.gov, using the Assessor's Identification Number printed on the bill, or call the Property Tax Information Line at 1-888-807-2111 for automated information around the clock, the Treasurer and Tax Collector said. Payments sent by mail are judged by their U.S. Postal Service postmark, and the county warns that some metered and bank bill-pay mail arrives without one.
