Property Assessment and Taxation System
- Municipal Property Assessment Corporation (MPAC)MPAC assesses the value of all the
properties in Ontario municipalities
or in the jurisdiction of a school
board with taxing authority. You
will find information such as
questions & answers about your
property assessment notice, guide
to property assessment in Ontario,
resolving assessment concerns,
and forms.
- The Assessment Review BoardThe Assessment Review Board is
an independent adjudicative
tribunal whose main function is to
hear complaints from people who
believe that properties are
incorrectly assessed or classified.
- Municipal Online Property Tax Analysis (OPTA)Access to this site is restricted to Ontario
municipalities. It contains a business
application to help municipalities make
decisions required under the new assessment
and property tax system.

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