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Customer Service and Support Centre - Modified Business Hours for the 2024 Holiday Season (ET)
  • Tuesday, December 24, 2024: Closing at 2:00 p.m.
  • Wednesday, December 25, 2024: Closed
  • Thursday, December 26, 2024: Closed
  • Tuesday, December 31, 2024: Closing at 4:00 p.m.
  • Wednesday, January 1, 2025: Closed
Note: Our telephone support is only available on Mondays and Tuesdays exclusively for Taxprep and CCH iFirm customers, and will cease at the end of this year. Cantax, CCH AnswerConnect, AliForm, CCH Engagement, CCH Practice Management, CCH Scan and CCH Site Builder products are already only supported by web tickets. To learn more about how to contact us, please visit our corporate web site.
Support platform: Everything you need to know
Please refer to the videos below to find out how to register for the support platform and make the most of it:
Last week most consulted articles from our Knowledge Base
  1. How do I install a network version of Taxprep?
  2. When will the next version of Taxprep, Cantax, or iFirm Taxprep be released?
  3. How do I download Taxprep?
  4. How do I register for the ''support.cch.com/oss/canada'' Support Platform?
  5. How do I attach files to my case on the ''support.cch.com/oss/canada'' Support Platform?
  6. How to configure the EFILE identification in CCH iFirm Taxprep?
  7. How do I reset my password for CCH iFirm?
  8. Install local Taxprep and get the activation key
  9. How to add a licence or security role in CCH iFirm
  10. What identification numbers do I need to be able to file T-slips or a T5013 return electronically through the internet file transfer (XML) (Transmit a return) with the CRA for 2024/2025?
  11. How to set up Taxprep Connect and Cantax AFR download to use the system default browser
  12. Where can I find the release notes for CCH iFirm?

Products Support

Knowledge Base Video Library My support cases Latest News System Requirements
Date: 2020-July-30
Cantax T1
Troubleshooting Memo Update

2020-July-30 Versions
COVID-19 – The deadline for filing returns, payment of the tax balance and instalments has been postponed – Special GSTC payment and increase in the CCB

2019
2020-June-23
EFILE SUM – When a taxpayer receives a T4 slip and an income amount is entered in box 81, the amount in box 50371 of the EFILE SUM form is incorrect for purposes of calculating pensionable earnings under the CPP.

2019 v.107
and subsequent
2020-June-3
COVID-19 – The filing deadline for income tax returns, balance-due day and the June 15, 2020 instalment payment dates have been postponed – Special GSTC payment and increase in the CCB

2019
2020-April-8
Line Climate Action Incentive from 2018 not carried forward on the 2020 instalment worksheet (INST)

19.1.3xx.100
19.2.3xx.107
19.3.3xx.111
2020-March-11
Schedule 6 – The base amount on line 24 of Schedule 6 is incorrect for Alberta residents 19.1.3xx.100
19.2.3xx.107
T2125 – The amount rolled forward on the line Work-in-progress (WIP) at the start of the year is incorrect

2020-February-28
Note that the problem, which was present from February 10 to February 28, 20020, has been corrected by the CRA:
Auto-fill my return: In certain situations, an HBP or LLP refund repayment is required by error 		19.2.3xx.107
The eNOA displays the incorrect digit at position 6 of the masked SIN

2020-February-21
Schedule 8 and Form RC381 – Post-bankruptcy return – Election to pay CPP Contributions on self-employment income in the pre-bankruptcy return

19.1.3xx.100
19.2.3xx.107
2020-February-12
Auto-fill my return (AFR) – The repayable balance at the end of the year for the Home buyer’s plan (HPB) or Life-long learning plan (LLP) is incorrect

19.2.3xx.107
2019-December-20
Schedule 14 – Removal of the climate action incentive for residents of New Brunswick and amount changes for Ontario, Manitoba and Saskatchewan residents

19.1.3xx.100

To view the Cantax T1Plus Troubleshooting Memo, consult the Knowledge Base.