If my property assessment goes up 10%, my taxes will increase by 10%

Tax implications for individual property owners vary depending on how their property relates to others around them. When a province-wide assessment takes place and your property assessment increases, it does not automatically equate to an increase in your property taxes. 

MPAC sets my property taxes

MPAC determines property assessments for all properties in Ontario. Municipalities determine revenue requirements, set municipal tax rates, and collect property taxes to pay for municipal services. The Government of Ontario establishes the province's assessment and taxation laws and determines education tax rates.

My property value had doubled. My property taxes will double

Municipalities decide what services they will provide in their communities and calculate how much they will cost each year.  Municipalities collect property taxes to help pay for these services. MPAC's property assessments help governments calculate each property owner’s share of the overall cost. 

I pay more taxes than my neighbours because I live in a house that was built this year

MPAC’s property assessments are based on a single valuation date for the entire province -- where all properties are assigned a value as if they sold on the same date. The date, determined by the province of Ontario, ensures consistency for every community, so all municipalities start at the same point for budget decisions such as property tax rates.