This website requires Javascript. Please enable Javascript in your browser to continue. OPTA
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 ID and password in the space provided. Click OK when finished.

Reset Password

For assistance, please call (416) 591-1110 or 1(800) 998-5739 Ext. 1.

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