Canada: When to Appeal Property Taxes

Canada homeowners should review property tax bills for factual errors or unexpected jumps, since assessment changes or inaccurate details can open the door to savings.
Across Canada, property taxes generally reflect a home's market value and the municipal rate, while reassessment timing differs by province and can affect bills.
In Ontario, reassessments stayed paused after the pandemic, but permits for additions like basements or pools still alerted the provincial assessment agency to update values.
Homeowners can appeal annually by explaining why taxes seem high and backing it up with data; factual errors and equity comparisons are common paths.
Complaints alone rarely help; strong evidence matters, and successful cases can deliver modest yearly savings or refunds approaching ~20% when a property was overvalued.