City extends property assessment deadline

Summary#

On June 15, 2026, Montréal city council unanimously set its position in favour of extending the deadline for the evaluator to answer review requests on the 2026–2028 property assessment rolls. The proposed dates are November 1, 2026, or March 1, 2027, depending on property category or value; the usual deadline is September 1, 2026, under the Municipal Taxation Act. The agglomeration council makes the final decision at a later meeting.

  • The schedule keeps the September 1 deadline for small residential properties with fewer than 12 units, vacant land, and some small non-residential or mixed properties.
  • It moves listed non-residential, mixed-use, and multi-residential categories to November 1.
  • It moves commercial non-residential properties valued at $20 million or less to March 1, 2027.
  • The evaluator may send answers earlier as each file is completed. City staff estimate at least 46% of requests will receive a response by September 1.

What it means for you#

  • Property owners who requested a review: The date for the evaluator’s response may be later than September 1, depending on the property’s category or value. This changes the response deadline, not the outcome of the review.
  • Owners of properties in the listed September 1 categories: The proposed extension would not change your response deadline.
  • City and agglomeration administration: The evaluator would have more time for certain files. Staff counted 4,331 requests, involving properties with a total assessed value of about $44.2 billion.

Money#

No cost estimate is provided in the materials.

  • City staff say the extra time would help balance review work with other assessment duties. They also say it could limit interest costs tied to adjustments, but give no estimate.

What is unclear#

  • The schedule lists “small non-residential and mixed” properties under both September 1 and November 1 deadlines, without explaining the difference.
  • The materials do not explain how owners will be told which deadline applies to their property.

Case for#

  • City staff say many commercial and large-property files take longer because they can require inspections and financial information from owners.
  • Extra time could allow the evaluator to examine those files while continuing regular assessment work.
  • The schedule keeps an earlier deadline for many small residential properties.

Case against#

  • Owners in the delayed categories may wait months longer for an answer, including some owners whose files are scheduled for March 2027.
  • The materials do not estimate the added costs or explain how any delay could affect individual owners’ interest costs.