ONT-TAXS online

Frequently Asked Questions about Using ONT-TAXS online


What Ontario business taxes can I file using ONT-TAXS online?

You can file returns for the following Ontario business taxes using ONT-TAXS online:

  • Beer Return
  • CT Insurance Premium Tax
  • Employer Health Tax
  • Fuel Tax
  • Gasoline Tax
  • Hydro Payment in Lieu
  • International Fuel Tax Agreement (including requests for renewal and additional IFTA decals)
  • Mining Tax
  • Retail Sales Tax (including Retail Sales Tax - Insurance Premium)
  • Tobacco Tax
  • Wine and Wine Cooler Return

How do I file my tax returns online?

Once you have registered for ONT-TAXS online, filing your returns online is an easy to follow step-by-step process.

The following returns can be uploaded using an XML data file:

  • Fuel Tax (Generic Collector Summary for Diesel and Related Products Return)
  • Gasoline Tax (Generic Collector Summary for Gasoline and Related Products Return)
  • Tobacco Tax (Tobacco Tax Non-Collector Wholesaler Return - TT101A)

Hydro Payment in Lieu returns can be uploaded using a .COR data file. The .COR data file must be generated using Canada Revenue Agency certified corporation Internet filing software. Please refer to each software product for specific system requirements and instructions on how to create a .COR data file.


What is the deadline for filing returns using ONT-TAXS online?

To ensure your tax return is received on time, you must file your return on or before the due date. Returns submitted after the due date will be considered late and interest and penalties may be charged.


What business taxes can I pay using ONT-TAXS online?

Currently, you can pay the following Ontario business taxes using ONT-TAXS online:

  • Beer and Wine Tax
  • CT - Insurance Premium Tax
  • Employer Health Tax
  • Fuel Tax (Generic Collector Summary for Diesel And Related Products Return)
  • Gasoline Tax (Generic Collector Summary for Gasoline And Related Products Return and Propane Retailer Return - GT89R)
  • Hydro Payment in Lieu
  • International Fuel Tax Agreement (including decal renewals and requests for additional decals)
  • Mining Tax
  • Tobacco Tax (Tobacco Tax Non-Collector Wholesaler Return - TT101A and Tobacco Tax Return - TT101S)
  • Retail Sales Tax (including Retail Sales Tax - Insurance Premium)

How do I make tax payments using ONT-TAXS online?

To make a payment using ONT-TAXS online you first need to set up a Pre-Authorized Debit Agreement (PAD) with the ministry. You can set up a PAD in ONT-TAXS online by selecting My Profile, Add Bank Account, and entering your Canadian bank account information. You will need to create a PAD for each business tax account. To protect your security, each time you make a payment using ONT-TAXS online, you are required to review the PAD agreement and agree to the terms and conditions.


Can I make a payment by credit card using ONT-TAXS online?

No. Currently, ONT-TAXS online offers only pre-authorized debits from your bank account as a payment option.


What happens when I submit a request using ONT-TAXS online?

Requests that are processed overnight, such as returns and payments, appear as Pending until they are processed (e.g., next business day). Requests that are processed and reflected online immediately include address and trade name changes.


What if I make a mistake while using ONT-TAXS online?

If you submit incorrect information, you can withdraw your request if it is in Pending status in ONT-TAXS online and then resubmit the request. This feature can be used only for requests that are processed overnight, such as returns and payments. Requests must be withdrawn the same day they were submitted. You can submit an amended return using ONT-TAXS online.

Online requests that are processed immediately, such as address and trade name changes, can be updated by using the Edit feature in ONT-TAXS online and entering the correct information.


Will I continue to receive paper returns by mail if I file online?

You can request to stop receiving paper returns, by using the My Requests feature in ONT-TAXS online for your accounts.

  • The stop paper returns functionality is not available for Employer Health Tax.
  • If you choose to stop paper returns, you will still continue to receive returns by mail for Fuel, Gasoline and Tobacco Tax that are not available in ONT-TAXS online.

How can I confirm that my request was successful?

After submitting any requests in ONT-TAXS online, including a tax return, payment or change to your account information, you will receive a confirmation number. Please keep this number for future reference.

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