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OPTA Ontario Ministry of Finance

Trillium Welcome to the Online Property Tax Analysis (OPTA) website provided by Reamined Systems Inc. on behalf of the Ministry of Finance.

This website contains business applications to help municipalities make decisions under the current property tax and assessment system. Access to this site is restricted to Ontario municipalities.

Please type your user name and password in the space provided. Click OK when finished.


Municipalities can call (416) 591-1110 ext. 300 for assistance.

Provincial Land Tax users can access OPTA PLT site by clicking here.