You can contact the City of Mississauga tax office in any of the following ways:
311 (905-615-4311 outside City limits)
You can email firstname.lastname@example.org. Please include the tax roll number/address in the subject line of your email.
City of Mississauga Tax Office
Mississauga Civic Centre
300 City Centre Drive, 4th Floor
Mississauga, ON L5B 3C1