Canadian tax software
Contact   |   My Account   |   Sitemap   |   Login
1 800 268 4522

Home    ›   Support   ›   Products   ›   Cantax T1Plus

Knowledge Base

What's new?
General section

Cantax T1Plus
Cantax T2/T2Plus
Cantax FormMaster

Contact Us
Cantax Direct

RSS Feeds

Internet Filing With Prior Versions of Cantax T1
Date: 2015-Oct.-14

Please take note that the content of this page has expired or is not active.

Cantax T1Plus
Internet Filing With Prior Versions of Cantax T1

Dear Cantax T1 Customer:

Effective November 2015, in accordance with the latest CRA requirements, you will have to make sure that the program is installed on a recent operating system to electronically transmit federal tax returns (T1) with Cantax T1/T1Plus 14.5.3xx.114 or prior versions. The following operating systems will no longer allow you to transmit electronically:

  • Windows XP;
  • Windows Vista;
  • Windows Server 2003;
  • Windows Server 2008.

We are sending this notice now so you have time to replace or upgrade any of your operating systems in order to be able to electronically file federal tax returns with prior versions of Cantax T1/T1Plus.

With Cantax T1/T1Plus 14.6.3xx.123 (Tax Planner Form) and future versions, you will be able to file federal tax returns using the above mentioned operating systems.

As mentioned in prior communications and in compliance with Microsoft’s support policy, Cantax stopped being supported on Windows XP, Windows Server 2003 and Terminal Server 2003 in July 2015.

If you have any questions, support is only a phone call away at 1-888-829-7848.
You can also contact us by e-mail at

Thank you for trusting our software programs.

Wolters Kluwer Canada

Copyright © 2019 Wolters Kluwer Canada Limited. All Rights Reserved.
Privacy | Terms and Conditions | For product inquiries or Customer Service,
email us at or call 1 800 268 4522.