Taxpayer's Advocate Property Info & Maps Map to Our Office Assessor/BoE Forms Popular Links attach_money Buying or Selling Property construction Building Something New upload_file Business Personal Property home Change Mailing Address assessment Appeal your Assessment help_outline Estimate Taxes Announcements Previous Prop 19 Explained On November 3, 2020, California voters approved Proposition 19, The Home Protection for Seniors, Severely Disabled, Families, and Victims of Wildfire or Natural Disasters Act. Local Assessment Roll Delivered Assessor Claude Parrish has delivered the 2021-22 Local Assessment Roll of Values that includes all locally assessable property in Orange County. The total net value on the Roll is... Open to the Public The Orange County Assessor Department's public service counters at the main office and the south county office in Mission Viejo are available for public access. In addition, many... Next Dates to Remember Tuesday, February 1, 2022 Second Installment Due Second installment due - Secured Property Tax Bill. Tuesday, February 15, 2022 Last Day to File a Timely Claim Last day to file a timely claim for most exemptions. Sunday, April 10, 2022 Last Day to Pay Second Installment Last day to pay second installment of Secured Property Tax bill before penalties are added or the next business day if the date falls on a weekend or holiday.