About California Property Taxes Posted on July 31, 2016 (August 2, 2018) by Shirley Kim California’ fiscal year runs from July 1st to June 30th the following year and are assessed and collected at the County level. Property taxes are collected in two equal installments. The first installment covers July 1st – December 31st and is due on November 1st and delinquent on December 10th. The second installment covers January 1st…