ONT‑TAXS online is Ontario's secure, convenient and free online tax service for your business and representatives. Access all of your accounts, stay up-to-date, go paperless, and pay and file your taxes at your convenience.
Not an ONT‑TAXS online user?
What you need to activate ONT‑TAXS online
Call the Ministry of Finance at 1 866 ONT‑TAXS (1 866 668‑8297).