Chat with our virtual assistant
Hot topics - Week of April 29, 2024
Current wait time: over 45 minutes for the phone calls and less than 30 minutes for the web tickets!
Web tickets and live chats are given priority over the phone calls. For a faster service, connect to our Support Platform to create a web ticket through our virtual assistant who will either offer you to submit your case or to chat live with an agent.
Most Consulted Articles in the Knowledge Base (as of April 30, 2024)
  1. EFILE ERROR 110-B: T1 return is rejected with error code 110-B for newcomers
  2. The federal T1 return is rejected by the CRA with error code 43 in Taxprep or CCH iFirm Taxprep T1.
  3. How do I update my support case on the ''support.cch.com/oss/canada'' Support Platform?
  4. How do I attach files to my case on the ''support.cch.com/oss/canada'' Support Platform?
  5. CRA EFILE ERROR 16, how to fix it
  6. The federal T1 return is rejected by the CRA with error code 70127.
  7. How do I register to the new ''support.cch.com/oss/canada'' Support Platform?
  8. The Québec TP1 return is rejected by Revenu Québec with error code TSTRUC.
  9. How do I prepare an amended federal T1 return to transmit it electronically (EFILE)?
  10. The federal T1 return is rejected by the CRA with error code 2252.
  11. How do I reset my password on the ''support.cch.com/oss/canada'' Support Platform?
  12. T2017 Where do we enter the reserve amount of capital property in the first year for dispositions that are not QFFP, QSBCS, or to your child?
  13. The federal T1 tax return form is rejected by the CRA with error code 2197.
  14. Where to enter a RL1 for a Ontario Resident?
  15. How do I transfer unused tuition fees from a child to a parent in Taxprep or CCH iFirm Taxprep
  16. When launching the application, the message The location of the transmission database is not properly specified or is unavailable. Would you like to specify it now? displays.
  17. The federal T1 return is rejected by the CRA with error code 43 in Cantax T1.
  18. How can I download old version of Cantax or Taxprep or Aliform programs?
  19. How to clear cache in Taxprep, Cantax and AliForm?

Products Support

Knowledge Base Video Library My support cases Latest News System Requirements

View By Product

CCH iFirm
CCH iFirm CCH iFirm Taxprep T1 CCH iFirm Taxprep T2 CCH iFirm Taxprep T3 CCH iFirm Taxprep Forms
Taxprep Cantax
Cantax T1Plus Cantax T2/T2Plus Cantax FormMaster
AliForm CCH Accountants' Suite
Date: 2015-Mar.-4
Cantax T1Plus
CRA Tax Data Delivery service - Certain slips tripled as a result of download

Dear Cantax client:

Because of a technical problem, the CRA's Tax Data Delivery service is currently not available. We are working jointly with the CRA to solve this problem as quickly as possible. For that reason, we suggest that you try using the service again later.

Also note that a problem relating to the CRA systems occurred on March 3, 2015. If you downloaded data on that date, certain slips might have been downloaded three times into the TDD form. We have determined that this problem occurred for T4 and T4A slips. However, make sure that this problem does not affect other slips.

Thank you for trusting our software program.

Cantax T1 Team