Online Services

ONT-TAXS online

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.

Login to ONe-key and access ONT‑TAXS online

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).

 

First-time user

  • Signing-up is easy

Manage accounts

  • All account summaries in one view
  • Give access to employees or representatives

Returns

  • File and amend business tax returns

Payments

  • Complete tax payments easily
  • Add and edit bank accounts

Refund requests

  • Ask for or cancel a refund
  • Easy to view refund status

Security and support

  • Communicate securely
  • Highest internet security standards for encryption
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