Amended Property Assessment Notice

If you received an Amended Property Assessment Notice, please review it and keep it for your records. No action is required unless you have questions about your assessment.

You may receive an Amended Property Assessment Notice for one of the following reasons:

  • If a revision is required to your Property Assessment Notice before we send property assessment information for your property to your municipality for the upcoming tax year.
  • If there is a factual error in the assessed value, classification or tax status of your property resulting from incorrect factual information about the property.

Each year, we deliver what's called an "assessment roll" to each municipality in Ontario, which contains the most up-to-date information about each property in Ontario, including owner and tenant information.

In some instances, we'll identify a factual error that pertains to the property. It may result in a correction to your property assessment, classification or tax status, including as a result of a decision from a Request for Reconsideration (RfR) or appeal to the Assessment Review Board (ARB).

If this happens with your property, we'll notify the municipality of the correction, and you'll receive an Amended Property Assessment Notice to inform you that this has happened. You may receive it in the fall for the upcoming taxation year or at any time during a given taxation year.

If you have questions about your property's change in assessment, please visit AboutMyProperty. There, you can:

  • Learn more about how your property was assessed.
  • See the information we have on file about your property.
  • Compare your property to other properties in your neighbourhood.

Look for your Assessment Roll Number and Access Key on your Notice to access AboutMyProperty.

If you disagree with our assessment or classification of your property, you can either file a Request for Reconsideration. If you are not satisfied with the outcome of that review, you have the option to file an appeal with the Assessment Review Board (ARB), an independent adjudicative tribunal.