Proposition 13 and Real Property Assessments
California’s system of property taxation under Article XIIIA of the state Constitution, commonly referred to as Proposition 13, values property at its 1975 fair market value with annual increases limited to the inflation rate, as measured by the California Consumer Price Index, or 2%, whichever is less. Subsequently, real property is reappraised for tax purposes only when: A change in ownership occurs New construction is completed New construction is unfinished on the lien date (January 1) Market value declines below Proposition 13 factored value on the lien date. (ref. Art XIIIA of the State Constitution, R&T 51) If none of these things occurs, the assessed value of a property should increase by no more than 2% per year. The law provides that the sales price of the property is presumed to be its market value unless the Assessor can demonstrate through market or other evidence that the sales price does not accurately reflect market value. The Assessor must also adjus...