How do MPAC's property assessment system changes affect my tax bill?

In 2016, MPAC mailed a Property Assessment Notice to every property owner in the province – assessing more than five million properties in Ontario. The next province-wide Assessment Update of all properties will take place in 2020.

MPAC continues to review properties during non-Assessment Update years. MPAC is legislatively responsible for updating this information even in a year when a province-wide Assessment Update is not taking place.

Your property’s assessed value is used by your municipality to calculate property taxes. Under the phase-in provision in the Assessment Act, an increase in assessed value will be introduced gradually. A decrease in assessed value is introduced immediately. The January 1, 2016 assessed value and classification of your property will be used as the basis for calculating your 2018-2020 property taxes, as illustrated below.