The California State Board of Equilization is advising county Assessors to use 2 percent as Proposition 13's inflation factor for 2019/20.
California's Proposition 13 provides for assessed value each year to be the lower of:
-Actual market value
-Prior year's assessed value, indexed by 2 percent
-Prior year's assessed value, indexed by the change in the California Consumer Price Index
The State Board of Equalization determined that the California CPI increased by 3.847 percent from October 2017 to October 2018.