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How Property Taxes are Calculated

Property tax is a levy based on the assessed value of property.

Property tax has two components: a municipal portion (Township of Stone Mills and County of Lennox and Addington) and an education portion.

  • Property Assessed Value: The value of your property is assessed by MPAC – the Municipal Property Assessment Corporation. MPAC is an independent body established by the Ontario Property Assessment Corporation Act.
  • Education tax rate: This tax rate is set by the Province of Ontario.
  • County tax rate: This tax rate is set by the County of Lennox and Addington and pays for services, such as social services; paramedics: hospitals; and libraries.
  • Municipal tax rate: This tax rate is set by the Township of Stone Mills and pays for services, such as waste management; public works and parks maintenance; recreational programs; fire and emergency management; planning and building inspection; capital infrastructure; and police.

School Support Designation via MPAC

As a property owner in Ontario, you are required to support a school board, even if you do not have children or your children are not currently attending school. By default, your school support is directed to your municipality’s English Public School Board.

In the case of a residential property occupied by tenants, they can direct the school support for that property.

Property owners, occupants, and tenants can select which school board they choose to support. Additionally, you will be able to vote in the next municipal election for trustees for the school board that you choose to support.

The Municipal Property Assessment Corporation (MPAC) is legislatively required to collect school support information and provide it in the assessment roll to every municipality and school board.

Contact Us

Township of Stone Mills
4504 County Rd 4
Centreville, ON K0K 1N0
Phone: 613-378-2475

Hours of Operation
Monday: 8:30am - 6:00pm
Tuesday-Thursday: 8:30am - 4:30pm
Friday: 8:30am - 12:30pm

Failure to receive a tax bill does not excuse a taxpayer from the responsibility for payment nor relieve the liability of penalty for late payment.

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