This is provided in the form of an Assessment Roll, which is delivered to municipalities throughout the province on the second Tuesday in December.

[5] Prior to the creation of MPAC, municipalities in Ontario had discretion on how they chose to assess properties.

In August 2023, the Ontario government announced that it was postponing a provincewide property reassessment as it conducts a new review of the accuracy and fairness of the system.

In 2022 alone, MPAC added more than $37.8 billion to municipal rolls across Ontario through its assessments of new construction and renovated properties.

Although property assessment originally came under the jurisdiction of Upper Canada, it was transferred to Ontario municipalities in 1849.

Over time, each municipality developed its own assessment system and methods of valuing property.

In addition, on December 31, 1998, responsibility for property assessment was transferred by the government of the Hon.

The value or price of a property is decided in the real estate market not by MPAC In 2023, a Toronto Star investigation into the accuracy and fairness of property assessments found that MPAC systemically under-assessed more expensive homes and over-assessed less expensive homes, which causes a disproportionate tax burden on lower and middle-income homeowners.