Property tax rates in Orange County, New York, are available at Co.Orange.NY.us, and the rates for Orange County, California, are available at Acapps.OCGov.com. The California county tax rate listings do not include special assessments or Mello-Roos taxes.
California has a 1 percent base property tax rate, according to the Orange County Register. The final rates include voter-approved bond measures, Mello-Roos taxes and special assessments that some counties impose on their property tax bills. The county computes the applicable property tax by multiplying the tax rate by a property's taxable value. The assessed value of the property minus exemptions produces the taxable value. Homeowners who live in their homes receive a $7,000 homeowner exemption.