Property Assessments

Municipal Property Assessment Corporation (MPAC)

The Municipal Property Assessment Corporation (MPAC) is responsible for the classification and assessment of all properties in Ontario under the Assessment Act and regulations established by the Provincial government.

AboutMyProperty^TM

AboutMyProperty™ is a secure, online service that provides property taxpayers with convenient access to property assessment information. Through AboutMyProperty™, property taxpayers can access property assessment information, site information, lot size and recent sales information on their own property and similar properties - free of charge.

Property Tax Adjustment

In accordance with the Municipal Act 2001, if you demolish structures on your property, or remove a swimming pool, you may submit an application to the Municipality, requesting an adjustment to your property tax. The application will be forwarded on your behalf to the Municipal Property Assessment Corporation (MPAC) for property reassessment. If the application is verified by MPAC and approved by Council, your property tax account will be adjusted and a refund will be issued by the Municipality.

A property owner may make application under Section 357 (current year) or Section 358 (previous years) of the Municipal Act 2001, for a refund of property taxes for the following reasons:

• Ceased to be liable to be taxed at rate it is taxed
• Became exempt
• Fire/Demolition
• Gross or manifest clerical error

Please complete the form below and submit to deputytreasurer@stonemills.com

Application For Adjustment In Taxes Form 357 358

Contact Information

In addition to the reports available through AboutMyProperty™, property taxpayers can call MPAC at 1-866-296-MPAC (6722).