How Assessment Works

MPAC is the Municipal Property Assessment Corporation, responsible for assessing and classifying all properties in Ontario in compliance with the Assessment Act and regulations set by the Government of Ontario. We are the largest assessment jurisdiction in North America, assessing and classifying more than five million properties with an estimated total value of $2.4 trillion.

Select a property type to learn more:

Did you know financial institutions, the insurance industry and real estate boards use MPAC's data?