About MPAC

The Municipal Property Assessment Corporation (MPAC) is an independent, not-for-profit corporation funded by all Ontario municipalities. Our role is to accurately assess and classify all properties in Ontario according to the Assessment Act and regulations established by the Ontario Government. We are the largest assessment jurisdiction in North America, assessing and classifying more than five million properties with an estimated total value of $2.2 trillion.

MPAC’s province-wide Assessment Updates of property values have exceeded international standards of accuracy and our property assessors are trained experts in the field of property valuation. With more than 1,700 employees, in offices across Ontario, we are committed to delivering property assessment excellence, providing outstanding service and earning the trust of property taxpayers as well as municipal and provincial stakeholders.

MPAC is accountable to the Province, municipalities and property taxpayers through its 15-member Board of Directors. All Board members are appointed by the Minister of Finance.


MPAC’s range of services includes:

  • Preparing annual Assessment Rolls for use by municipalities and the Province to calculate property and education taxes.
  • Conducting municipal enumerations to prepare a Preliminary List of Electors for municipalities, school boards and District Social Services Administration Boards to help these organizations create final Voters’ Lists for municipal and school board elections.
  • Delivering innovative products and value-added services to banks, mortgage firms and other assessment jurisdictions across Canada.