Taxation & Valuation

The Finance Department is responsible for the preparation of the City of Westmount annual budget, collection of property taxes and other revenues, issuance of all payments, and execution of all accounting operations and procedures to track and report expenditures and revenues.

Voilà! Online Property portal

Property owners in the City can now receive and consult their tax account online at any time on Voilà!

>> Click here to access Voilà!


Watch the video below to find out how to view your tax account on Voilà!

If you have any questions regarding your property tax bill, please contact us:

Payment of property taxes and duties on transfer

Property owners must respect payment deadlines to avoid interest and penalties on outstanding property taxes or duties on transfer. The following payment methods are recommended to ensure payment prior to the deadline:

  • Electronic payment through your bank online or branch.
  • Payment by mail (by cheque made to the order of the City of Westmount). Use the coupon and return envelope.
  • By credit card or bank transfer on ACCEO Transphere (click on the button below). Please note that ACCEO charges a fee of 1,98%. For technical support on the platform, please contact ACCEO Transphere at 1-844-748-7695.
  • By cheque at City Hall: you may deliver the your envelope containing your cheque at the reception desk by the west door during office hours, or insert it in the mailbox on the door if the building is closed. No cash.

Avoid late fees

No matter which payment method you use, make sure the City of Westmount receives your payment by the due date. If you are using a third-party service provider (bank, Canada Post etc.), you must clearly understand the terms and conditions of the services you are using. We suggest that you make your payments 5 business days before your due date.

You can consult the 2023-2024-2025 City of Westmount Valuation Roll using the Immonet service using the following links:

The “Professionals” link above is designed specifically for the use of notaries, hypothecary creditors, financial institutions and other accredited professionals. State agents are invited to use the public access. Properties can be found by searching by address, property registration number or cadastral number. There is a nominal charge for the use of the “Professionals” services.

The designation of the building, the cadastral number and the assessed value of the property, as well as the property dimensions, are available through this service. Please note that personal information regarding the identity of the owner is not published. The global amount for annual property taxes is also available to both professionals and the general public. The City of Westmount is proud to offer this new service to residents and professionals doing business in the city. Should you have any questions, please do not hesitate to contact us.

Telephone Electronic
City of Westmount Taxation Office Questions regarding Immonet services and valuations for properties within the City of Westmount  514 989-5234 Click here
Direction de l’évaluation foncière de la Ville de Montreal Additional information on the preparation of the valuation roll 514 280-EVAL Click here

In 2015, the Quebec government decided to offer seniors an assistance program to offset significant increases in municipal taxes. This grant is intended to financially assist taxpayers affected by a substantial increase in the value of their residence. As of January 1, 2016, municipalities are required to inform owners of a residential assessment unit consisting of a single dwelling unit, that they may be eligible for a potential grant. This grant is awarded if there is a significant increase in the value of a residence.

For the City of Westmount, the significant increase is set at 30.62% for the 2023-2025 property assessment roll.

Who is eligible to receive the grant?

You may be eligible to apply for the grant if you meet all of the following conditions:

On December 31 of the 2022 taxation year you:

  • were residing in Québec;
  • were 65 years or over;
  • had owned your residence for at least 15 consecutive years (note that this period can include a period during which your spouse owned the residence before transferring ownership to you);
  • Your net family income for the 2022 taxation year was $58,200 or less;
  • Your residence is an entirely residential assessment unit consisting of only one dwelling, and it serves as your principal residence;
  • You received (or were eligible to receive) a municipal tax bill in your name for the residence for the current year (2023); and
  • Your residence is subject to an increase in the value of the residential assessment unit higher than 30.62%.

How will the grant be established?

We will apply the general tax rate on the value of the dwelling that exceeds the average increase of one unit dwellings in the municipality (maximum grant: $500).

Subject to exceptions, the amount of the grant will stay the same for all the subsequent years of the 2023-2025 Property Assessment Roll. Exceptions may be due to the variation of the value of the property during the Roll.

Example – Variation of value and grant calculations

General Property Tax (2023) $0.6081 per $100 of evaluation
Property evaluation before the Roll filing: $200,000
Property evaluation at Roll filing: $275,000
Value increase (A): 37.50 %
Grant Threshold for the City (B): 30.62 %
Increase to consider (A) – (B): 6.88 %
GRANT: $200,000 X 6.88 % X 0.6081 $ / $100 = $83.67

The amount of the potential grant appears in box A of form FM-210.1 (2022-10), Amount of the Potential Grant to Offset a Municipal Tax Increase.

For more information about the grant, see the instructions given on form TP-1029.TM(2022-12), Grant for Seniors to Offset a Municipal Tax Increase.

How is the grant implemented and administered?

City of Westmount:

  • The role of the City is to identify and inform residential owners of the amount of the potential grant which they may be eligible to apply for.
  • If the residential dwelling is eligible, you will receive a personalized letter as well as the prescribed form FM-210.1 (2022-10) Amount of the Potential Grant to Offset a Municipal Tax Increase. The amount of the potential grant will be filled in the City of Westmount, in box A of form FM-210.1 (2022-10).

Revenue Québec – Financial Aid

  • The request for the potential grant and the validation of the qualifying conditions will be done by the residential owners when they will produce their Income Taxes.
  • The financial aid will be a credit to record on line 462, if applicable, of the provincial Income Taxes returns.
  • For more information, please contact client services at Revenue Québec: 514 864-6299 (Montréal area) • 1 800 267-6299 (free of charge) •

The application of Bill 22 in 2009 has resulted in a revised tax structure, meaning that you will receive ONE PROPERTY TAX BILL, sent from the City of Westmount, for local services as well as for agglomeration services provided across the island. The rates vary according to property type.

City of Westmount Property Tax Rates 2023 ($/$100)

(containing 5 units or less)
(containing 6 units or more)
$ 0.6081 $ 0.6162 $ 2.6731

Pay in two installments

The City of Westmount is offering taxpayers the opportunity to pay their 2023 property tax bills over two equal installments. The installment deadlines are as follows

Installment Deadline
Installment 1 Friday, February 24, 2023
Installment 2 Friday, May 26, 2023

Where an installment is not paid within the prescribed time, only the amount of the unpaid installment becomes due.

Late Payment Penalties
Interest 9.00 % / year
Penalty 0.50 % / month – up to 5% per year

Property Tax Bill Payment Methods

Taxpayers of the City of Westmount have four payment options available to them.

  • Electronic payment through your bank online or branch.
  • Mail (cheque made to the order of the City of Westmount). Use the coupon and return envelope.
  • Credit card, using the ACCEO TRANSPHERE.
  • In person, at City Hall during business hours. When City Hall is closed, you may insert your envelope containing your cheque in the mail slot at the west entrance. No cash.

Invoices issued by the City of Westmount can now be paid using telephone and Internet banking services offered by major banks across Canada. For more information on how you can pay through your bank, please consult the financial institution’s Web site, and read the information on matricule numbers below.

Credit card payments are not accepted when paying at City Hall. Cheques must be made payable to the City of Westmount.

Mailing Address: City of Westmount (Tax), C.P. 334, SUCC Westmount, QC, H3Z 2T5

Electronic Bill Payments – Identification Numbers

You may pay your property tax bill through the Web site of your financial institution, if such a service is available. Please enter the 18 digits of the matricule number (numéro du matricule) found on the payment coupons and on the upper right-hand corner of your property tax bill, without hyphens.


If you have any questions regarding your City of Westmount property tax bill, please do not hesitate to contact us:

Voilà! is an online portal developed by PG Solutions that allows the consolidation of information on a property’s taxation data, assessment notice, and tax details. This information is available to the citizen online at any time.

>> Access Voilà! Online Property Portal

A transfer of immovables is a transfer of the right of ownership on a property as a result of a contract of sale, rental of more than 40 years, transfer of the rights of the emphyteutic lease or donation. Duties on transfers of immovables – also known as the ‘Welcome Tax’ – are charges that are payable when the right of ownership on a property is transferred. The buyer is responsible for paying these duties. Where there is more than one buyer, they are joint and severally liable for payment of the transfer duties. Every municipality must collect duties on the transfer of any immovable situated within its territory. (Act respecting duties on transfers of immovables – R.S.Q., chapter D-15.1). The tax is calculated as follows:

$0  – $55,200 0,5 % (0.0050)
$55,201  – $276,200 1 % (0.0100)
$276,201  – $552,300 1,5 % (0.0150)
$552,301 – $1,104,700 2 % (0.0200)
$1,104,701 – $2,136,500 2,5 % (0.0250)
$2,136,501 and more 3 % (0.0300)

The duties on transfers of immovables are imposed at the time of purchase of an immovable and are payable in one installment.

Comparison Factor

The comparison factor for 2023 is 1. Where the imposition is made on the basis of the market value at the time of the transfer, the value on the roll must be multiplied by the comparative factor of the fiscal year that corresponds to the registration date.

Consult the Répertoire des proportions médianes et des facteurs comparatifs prepared by the Ministère des Affaires municipales et Régions (available in French only)

If the transfer of your immoveable is not registered with the Land Registry.
You a required to complete and submit Form A.

When a transfer duty exemption condition ceases to be met.
You a required to complete and submit Form B.

The Mayor of the City of Westmount sends out an explanatory letter with the municipal tax bill. Here are the financial details for the WRC. Click below to view or download a copy of his letter.