Los Angeles County, California

Filing dates are July 2 to November 30 of each year for all real and personal property assessments. If the final filing date falls on a weekend or legal holiday, a mailed application postmarked on the next business day is deemed timely. Supplemental assessment appeals are due within 60 days of the mailing date on the Supplemental notice or tax bill, or the postmark date, whichever is later.