How MPAC measures quality and accuracy of residential properties
At MPAC, we take accuracy very seriously. MPAC's assessments help ensure property owners like you pay their fair share of property taxes - and nothing more.
The Quality Service Commissioner measures the quality and accuracy of MPAC's property assessments against the standards set by the International Association of Assessing Officers (IAAO). Two internationally recognized criteria are used to measure quality and accuracy - the Median Assessment-to-Sale Ratio (ASR) and Coefficient of Dispersion (COD).
What is an Assessment-to-Sales Ratio (ASR)?
We calculate ASRs for all of the properties sold in your municipality. If you recently bought your home, then your ASR is calculated using the purchase price you paid. For quality measurement, the sale amount used in the ASR is adjusted to reflect market conditions as of the legislated valuation date.
Assessed Property Value
|x 100 =||Assessment-to-Sale Ratio (ASR)|
Understanding the Median Assessment-to-Sales Ratio (ASR)
What is a Median ASR?
We look at all the ASRs in your municipality and sort them from the lowest to the highest. The number that's in the middle is called the Median ASR.
We check to make sure that your municipality's median ASR is within the IAAO standard's acceptable range. This tells us that there is an acceptable degree of accuracy between MPAC's assessed values and actual selling prices.
Understanding the Coefficient of Dispersion (COD)
What is a Coefficient of Dispersion (COD)?
The COD measures the uniformity of assessments for properties that have sold in your municipality.
We check to make sure that your municipality's COD is within the IAAO standard's acceptable range for consistency.
Assessment Roll Quality Reports for the 2016 Current Value Assessment
This information is turned in to an Assessment Roll Quality Report and is shared with your municipality.
Interested in reading the report for your municipality? Simply enter the name of your municipality in the field below. Questions? We're happy to help. Please call us at 1 866 296-6722.
|1 - Prescott, Russell, Stormont Dundas & Glengarry Counties|
|2 - Lanark, Leeds & Grenville Counties|
|3 - Regional Municipality of the City of Ottawa|
|4 - Renfrew County|
|5 - Frontenac, Lennox & Addington Counties|
|6 - Hastings, Northumberland, City of Prince Edward Counties|
|7 - Peterborough County, Kawartha Lakes County, Haliburton County|
|9 - City of Toronto|
|13 - Regional Municipality of Durham|
|14 - Regional Municipality of York|
|15 - Regional Municipalities of Halton and Peel|
|16 - Simcoe County|
|17 - District Municipality of Muskoka|
|18 - Regional Municipality of Niagara|
|19 - Regional Municipality of Hamilton|
|20 - City of Brantford, Brant, Haldimand County and Norfolk Counties|
|21 - Regional Municipality of Waterloo, the Counties of Dufferin and Wellington, and the City of Guelph|
|23 - Elgin, Middlesex and Oxford Counties|
|24 - Huron and Perth Counties|
|25 - Bruce and Grey Counties|
|26 - Municipality of Chatham-Kent, Lambton County|
|27 - Essex County|
|28 - Territorial Districts of Nipissing and Parry Sound|
|29 - Territorial Districts of Cochrane and Timiskaming|
|30 - Regional Municipality of Sudbury and the Territorial Districts of Sudbury and Manitoulin|
|31 - Territorial District of Algoma|
|32 - Territorials District of Kenora, Rainy River and Thunder Bay|