Not an ONT‑TAXS online user?
What you need to activate ONT‑TAXS online
ONT‑TAXS online allows you to file returns at your convenience in a safe, secure environment. You can also amend the information for a previously filed return, or request IFTA decals.
Not an ONT‑TAXS online user?
What you need to activate ONT‑TAXS online
Prefer to talk to us?
Call the Ministry of Finance at 1 866 ONT‑TAXS (1 866 668‑8297).
You can file returns for the following Ontario business taxes using ONT‑TAXS online:
For each return or decal request submitted ONT‑TAXS online will display a unique submission confirmation number on screen. Print a copy of this confirmation or write it down for your records.
Your return request will be processed and may take several days to be reflected on your account. You can view the details of the return in ONT‑TAXS online.