https://www.newtecumseth.ca/wp-content/uploads/2026/05/Tax-appeal-application-357-358.pdf
I am attaching a page from Nextgen Law, regarding the filing process. The link will be at the bottom of the page.
Although the form is attached above, you may want to seek profession advise regarding the completion of forms prior to submission as errors will cause delays and possible negative decisions on your behalf.
Under Section 357 of the Municipal Act, property owners can apply for a property tax cancellation, reduction, or refund if their property experienced specific qualifying changes during the taxation year. [1, 2, 3]
Eligible Reasons for a Section 357 Appeal
You can file this form if your property:
- Was razed or damaged by fire, demolition, flood, or a similar event [1]
- Underwent repairs or renovations that prevented its normal use for at least 3 months [1]
- Changed its property class or ceased to be liable for the current tax rate [1]
- Became exempt from property taxes, or became vacant/excess land [1]
- Experienced a gross or manifest error that is clerical or factual in nature [1]
Filing Instructions & Deadlines
- Complete the Form: Download the Tax Appeal Application Form and fill out your property roll number, address, and select the applicable reason for adjustment.
- Gather Supporting Documentation: Depending on your reason, you must provide supporting proof (e.g., a copy of a demolition permit, photos of the site, a fire report, or third-party invoices detailing structural work).
- Submit the Application: Send the completed form and documents directly to the Town of New Tecumseth Tax Department. Submissions can be dropped off or mailed to the municipal administration office at 24 Tupper Street West, Alliston, ON L9R 1H2.
- Deadline: For any given taxation year, your Section 357 application must be submitted on or before the last day of February of the following year.
You should consider:
- What specific event triggered your request (e.g., a fire, demolition, or clerical error)?rify the specific supporting documents you will need to attach t
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