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Taxes & Assessment

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»City of Mississauga 2020 Interim Tax Bills for commercial, industrial and multi-residential properties will be mailed out February 6 and February 7, 2020. View instalment due dates at the Payment Due Dates page. 

Please note that the City of Mississauga has recently changed our methodology for updating property ownership information on our tax records to an automated process. This will enable the City to improve the timely updating of ownership changes. The ownership data used in this process is based on the sales transaction data received from Teranet Ontario and provided to the City from the Municipal Property Assessment Corporation (MPAC) on a bi-weekly basis.

Effective November 1, 2019, the City of Mississauga will no longer process ownership changes using notifications received from law offices. Ownership changes will only be processed from the sales transaction data noted above.

Any subsequent changes to the sales transaction data received from Teranet Ontario / MPAC such as a different mailing address would still require the property owner to notify the City directly in writing.

Through automating the process for ownership updates the City is able to improve the timeliness and accuracy of ownership changes for taxpayers; ensure that ownership information reflected on our tax records is consistent with the information registered on title; and eliminate the need for law offices to prepare and send written requests to the City of Mississauga for ownership changes.

If you have any questions or concerns, please feel free to contact the Citizen Contact Centre at 3-1-1. From outside city limits please call 905-615-4311 or email the Tax Office directly

The Revenue Division is responsible for the billing of interim, final and supplementary property taxes; tax, provincial offences and miscellaneous receivables; payment processing and cashiers; review and appeal of property assessment information received from the Municipal Property Assessment Corporation (MPAC); and property tax policy.

This site will explain who sets property taxes, where the information comes from upon which property taxes are based, who plays what role in the process leading from the creation of taxation policy to your tax bill, and many other tax questions.

The City collects property taxes on behalf of the City of Mississauga, Region of Peel, and the Province of Ontario (Education). Each level of Government is responsible for its own tax rates.

Assessment & Tax Legislation

The Provincial Government sets the legislative framework for assessment and taxation in Ontario. It does this by creating legislation, called Provincial Statutes. The Government also creates regulations, which are authorized under the Statutes. The principal ministry involved in setting assessment and taxation policies is the Ministry of Finance, through the Assessment and Municipal Acts. These laws may be viewed at

Assessed Value - MPAC

The Municipal Property Assessment Corporation (MPAC) is responsible for assessing all property in Ontario. It operates under the authority of the Municipal Property Assessment Corporation Act. Every municipality in Ontario is a member of the Corporation. The Corporation is governed by a Board of Directors who are appointed by the Minister of Finance.

MPAC does not set assessment policy but it does administer these policies. Its main responsibility is to calculate assessment values and to classify properties according to their use, for each of the over four million properties in Ontario. These values are also provided to municipalities on an annual assessment roll. The City, Region and the Province use these values when they calculate property taxes and education taxes.

MPAC completed the last province-wide reassessment in 2016 based on a market valuation date of January 1, 2016 with municipalities using 2016 property assessment values for the 2017, 2018, 2019 and 2020 taxation years.

To provide an additional level of property tax stability and predictability, the market increases in the assessed value of your property between 2012 and 2016 will be phased-in over four years.  The phase-in program does not apply to decreases in assessed value.  If there has been a decrease in your property's assessed value compared to 2012, it will be reflected immediately in the 2017 tax year.  The change in assessed value and phased-in assessment values for the 2017 to 2020 property tax years are listed on your 2016 Property Assessment Notice.

Additions and improvements to your property will create a change to the market value. For questions concerning assessment and property valuation, please contact the Municipal Property Assessment Corporation office (MPAC). Call 1-866-296-6722 or visit the MPAC web site, .

Tax and Assessment Links
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