Assessment Information Requests


Having complete, accurate and up-to-date market and property data is critical to the valuation process, and property owners play a vital role by providing this information, as required under the Assessment Act.

Each year, MPAC requests property information from property owners and/or their representatives as part of our Assessment Information Request Program. The information collected through this program is ingested into our database, reviewed by assessors, and used to support accurate property assessments as well as determine sector and market-based trends.

Assessment Information Requests

Where property information is required, MPAC will send an information request letter outlining what information is needed, when property owners are required to submit the information to MPAC, and details on how to submit it.

The following property types may receive an Assessment Information Request from MPAC:

  • Commercial properties
  • Office properties
  • Retail properties
  • Gravel pits and quarries
  • Golf courses
  • Grain elevators
  • Hotels
  • Industrial malls
  • Large resort properties
  • Land lease or mobile home parks
  • Long-term care facilities
  • Mixed-use properties
  • Mixed-use retirement properties
  • Motels
  • Multi-residential properties
  • Retirement homes
  • Special-purpose business properties
  • Specialty properties

Property Income and Expense Return (PIER) 

Many of the property types listed above are assessed according to their income-generating potential. To accurately assess these properties, MPAC requires property owners to submit property rental, income and expense information. This information is requested annually through our Property Income and Expense Return (PIER) Program, which is the largest data collection initiative under the Assessment Information Request Program.

Providing information through PIER is one of the most important ways property owners can support our ongoing analysis of the market and the development of quality assessments.

If you do not receive a letter but believe you should have, please contact us.

MPAC’s authority to collect information

MPAC is legally authorized under Section 11 of the Assessment Act to collect information for property assessment purposes. Section 13 of the Act provides penalties for failing to provide requested information and for providing false information.

If the information requested is not provided in full, MPAC may be required to estimate your property details when completing the assessment. In addition, if you choose to appeal your assessment to the Assessment Review Board, the burden of proof will shift from MPAC to you.

Learn more about MPAC’s authority to collect information

Suggestions for improving data collection

We are committed to working with you to ensure that your property values are based on up-to-date and accurate information. If you have suggestions about improving the way we collect this data, please email us at