Assessed Value is defined by state law as 50% of the market value of the property as of December 31st of the preceding year. Once equalized and approved by the STC your Assessed Value becomes the State Equalized Value (SEV) and this figure, along with Taxable Value, appears on your property tax bill.
Taxable Value is derived from a formula created by Proposal A in 1994 which was designed to limit rises in property taxes by "capping" and restricting the rise in Taxable Value to the rate of inflation. Disregarding transfers of ownership or changes to your property, each year your Taxable Value can rise 5% or the rate of inflation, whichever is less. However, your Taxable Value cannot be higher than your Assessed Value.