KEITH KNOX, Los Angeles County Treasurer and Tax Collector, reminds property owners that the first installment of the 2022-23 Annual Secured Property Taxes becomes delinquent if not received by 5:00 p.m. Pacific Time or United States Postal Service (USPS) postmarked on or before Monday, December 12, 2022. This is two days later than the traditional delinquency date of December 10, as this date falls on a Saturday in 2022. Please click here to read more.