Assessment Procedure to Request a Change of Mailing Address


To describe the steps for a property owner to change the mailing address information the Municipal Property Assessment Corporation (MPAC) has on file for a property.


Section 31(4) of the Assessment Act requires that all requests for changes of the mailing address be made in writing. The Act also requires that the assessed person or an authorized representative submit the change.

The Process

If a change in mailing address is required, the property owner must submit his or her request in writing.  The following information should be included with the request:

  • the 19-digit roll number or property location indicated on the Property Assessment Notice;
  • the property owner’s full name;
  • the new mailing address to which the Property Assessment Notice and any other correspondence from MPAC should be directed; and
  • a daytime contact phone number.

If the person making the request is not the property owner, a Representative Authorization form of Letter of Authorization is also required.

Requests can be submitted by email or mail:

Email: Contact Us

Mail: MPAC
1340 Pickering Parkway, Suite 101
Pickering ON  L1V 0C4

MPAC staff will process the mailing address change upon receipt.

If MPAC staff have any questions about the request, the property owner or authorized representative will be contacted at the daytime phone number that was included with the request.

Related Information

Assessment Act

Note: This procedure has been developed to provide the public with a general understanding of the procedure to request a change of mailing address.  The applicable law prevails to the extent there is any conflict between the procedure and the relevant law.

Note: The applicable law prevails to the extent there is any conflict between this information and the current law. This information is not intended to provide legal advice and should not be relied upon as such.