General information

Customer service

Email[email protected]
Phone 514-384-5034
Monday to Thursday : from 8:00 am to 12:00 pm and from 1:00 pm to 3:30 pm  
Friday : from 8:00 am to 12:00 pm
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Payment methods

Via your financial institution

  • At the ATM, counter or online banking
  • Allow about four days for the electronic transfer.
  • Use the 20-digit reference number for electronic payment on your most recent school tax bill or statement of account.

To pay online through your financial institution’s banking app or website :

  1. Log in to your financial institution’s website.
  2. Add the Montreal Island School Tax Management Committee as a supplier by searching using the key word “taxe scolaire” and select “Taxe scolaire de l’île de Montréal” or “Comité de gestion de la taxe scolaire de l’île de Montréal” from the available choices.
  3. Enter the 20-digit electronic payment reference number that appears at the top of your account.

By mail

P.O. Box 11071, Downtown station, Montreal, Quebec  H3C 5A9

  • By cheque payable to Comité de gestion de la taxe scolaire de l’île de Montréal (CGTSIM). Enclose the lower portion of the school tax bill.
  • Please allow for postal delays, as payment will be credited to the account upon receipt, or on the date of the cheque if postdated.
  • It is recommended to enclose a post-dated cheque for the 2nd instalment with the first instalment.
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Statement of account

To request a statement of account, please complete the following online form Request for school tax bill. A $20 administration fee will be charged to your account, and the statement will be emailed to the address indicated on the form.

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The Access to Information Act limits the disclosure of personal information concerning individuals. For anyone other than property owners, there are formalities to complete in order to access accounts

Complete the form : Proxy Form – School Tax.

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Change of mailing address

The property owner or an authorized representative can make this request by mail or by email by completing the form: Request for change of mailing address

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Change of ownership

The Comité de gestion receives, from all municipalities, a copy of the assessment certificate confirming property transactions. The certificate indicates the name and contact details of the new owner. The certificate is issued after publication of the transaction at the Land Registry Office.

There may be a delay of several weeks or even months between the date of the transaction and receipt of the certificate. It is the taxpayer’s responsibility to ensure that the Comité de gestion has its contact information.

The new property owner must ensure that school taxes are included in the adjustments prepared by the notary at the time of the property transfer transaction. The Comité de gestion is not responsible for making those adjustments.

The Comité de gestion does not issue a new school tax statement when there is a change of ownership. However, it is possible to obtain an online copy of the property’s tax statement.

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Refunds due to negative certificates or decisions made by the Tribunal administratif du Québec are issued once the certificates have been received from the municipal evaluators.

Refunds due to overpayments are issued at the owner’s request or following a review of the credit balance. The service charge for issuing a refund for overpayment is $25. Unless an immediate refund is requested by the owner, credit balances of less than $325 are carried forward to the next year.

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Payment transfer

A $15 fee will be charged when a school tax payment is made to the wrong account by a homeowner: a statement of account will be issued following the transfer.

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Reminder notices and debt recovery

Interest is charged on all late or insufficient instalment payments.

A $25 service charge is added for every returned cheque (NSF, stop payment, frozen account, etc.).

The Comité de gestion periodically mails out reminder notices indicating balances due. Interest is calculated as of the due date of each reminder.

In case of non-payment, the Comité de gestion may recover its debts in three ways:

  • Seizure and sale of personal property
  • Sale of property for non-payment of school taxes
  • Personal action under common law
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Comments or complaints

The Comité de gestion prides itself on offering excellent service. We review and respond to all written comments and complaints.

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Island of Montreal

Harwood Sector

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