Corporate Taxprep 2026 - Troubleshooting Memos

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Date: 2026-Oct.-1

Corporate Taxprep
Troubleshooting Memos

2026-October-1	Versions
Schedule 7 – Incorrect calculation of the AAII and the income eligible for the SBD when taxable dividends deductible under paragraph 113(1)(c) are reported on line 235 of Schedule 3	2026 v.1.x
2026-September-21
Schedule 31 – The answer to line 101 may be incorrect for a CCPC that makes the election under subsection 127(10.31) ITA when the amount on line 390 exceeds the qualifying income limit	2026 v.1.x
2026-June-19
Schedule 31 – The calculation of the $6 million SR&ED expenditure limit in Part 10B does not compute when the amount entered on line 399 is 0	2026 v.1.0 2026 v.1.1
2026-June-9
CO-17 EFILE – Error code 13978 is generated when capital cost allowance Class 1C is included in Form CO-130.A	2026 v.1.0 2026 v.1.1
2026-May-25
Schedule 8 WORKCHART – Incorrect calculation of amounts on lines 7b and 8b when the total adjustments on lines 2a, 2b and 2c exceed the UCC at the beginning of the taxation year	2026 v.1.0
2026-May-22
Incorrect diagnostics preventing the EFILING of T2 returns	2026 v.1.0

To view the Corporate Taxprep Troubleshooting Memos, consult the Knowledge Base.