Chat with our virtual assistant
Hot topics - Week of April 20, 2025
NEW: Beginning March 24, 2025, the CRA will no longer accept direct deposit updates or changes submitted via EFILE
Consult this article for more details on this matter.
End of Phone Support: Benefit from our Advanced Virtual Agent 24/7!
Since January 1, 2025, the customer support teams offers its high-quality service exclusively through digital channels, and no longer offers incoming phone support. Click here for more details on this matter.
Register for our support platform and log in to our virtual agent to find answers, submit a support ticket or chat with a live agent.

Watch videos to find out everything you need to know about the support platform:
This week most consulted articles from our Knowledge Base
  1. Cannot log in to the ''support.cch.com/oss/canada'' Support Platform
  2. CRA FORMS: Can I transmit slips and T5013 returns using the federal transmitter number MM for 2023 and prior years?
  3. How to resolve the capital gain diagnostics E780, E1546 and E1547 concerning the periods when the slips do not provide the details?
  4. How do I register for the ''support.cch.com/oss/canada'' Support Platform?
  5. T1-EFILE Diagnostic #002330
  6. How do I reset my password on the ''support.cch.com/oss/canada'' Support Platform?
  7. The federal T1 return is rejected by the CRA with error code 43 in Taxprep or CCH iFirm Taxprep T1.
  8. How do I attach files to my case on the ''support.cch.com/oss/canada'' Support Platform?
  9. CCH iFirm Tax: How to send a return to Support
  10. Reviewing Returns: How to review tax returns using diagnostics

Products Support

Knowledge Base Video Library My support cases Latest News System Requirements
Date: 2024-Nov.-12
Cantax FormMaster
Microsoft .net 8.0 required for the next Cantax FormMaster releases

Dear Cantax FormMaster customers,

In order to ensure a smooth installation of the upcoming Cantax FormMaster product versions, the Microsoft .net 8.0 software environment must be installed on your computer prior to the installation of Cantax FormMaster.

If Microsoft .net 8.0 has not been installed, the following error message will appear when installing Cantax FormMaster and will prevent you from completing the installation of the tax program:



To avoid complications during the installation process of Cantax FormMaster, please make sure that Microsoft .net 8.0 (Microsoft Windows Desktop Runtime - 8.0.x (x64)) is installed on your computer.

If you notice that Microsoft .net 8.0 is not installed, please consult the procedure described in the article How do I install Microsoft .net 8.0.0 or a higher version (Microsoft Windows Desktop Runtime - 8.0.x (x64)) available in our knowledge base.


Register to the Wolters Kluwer Support Platform

Since July 22, 2024, Wolters Kluwer Canada provides customer support for Cantax exclusively through web tickets and chats on the Support Platform. This transition is part of Wolters Kluwer Canada’s ongoing investment in digital strategy and customer experience. The Support Platform is designed to ensure customers can quickly access helpful information whenever needed.

All customers must be registered on the Support Platform in order to submit, modify, and track their support cases. You can register with the Support Platform by consulting Register with our Support Platform.
 
For more details about the web ticketing system and best practices, watch the following “How to” videos:

Wolters Kluwer Canada