The Municipal Property Assessment Corporation (MPAC) assesses all properties in the province of Ontario. Assessments are based on the current value for your property as determined by MPAC, and your annual property taxes are calculated based on the assessed value.
Do you have questions about your Property Assessment Notice? Visit aboutmyproperty.ca or contact the Municipal Property Assessment Corporation (MPAC) Customer Contact Centre at 1-866-296-MPAC (6722), or 1-877-889-MPAC (6722) TTY.
Assessment appeals should be made directly with MPAC through their Request for Reconsideration application form.
Contact MPAC at 1-866-296-6722, or visit their website. If you are successful in reducing the property's assessment, adjustments to the tax account cannot be processed until after the final billing has been completed.
Below is a short video created by MPAC that explains how properties are assessed.