Error 10020 occurs when you attempt to file an AT1 return created in the 2024 T2 module rather than the updated 2025 T2 module. Convert the file to solve the issue.
known issue AT1 T2 Alberta FinanceThis release extends the tax year ends for T2 and AT1 returns up to May 31, 2026. It also converts TaxCycle to a 64-bit only application.
release notes T2 AT1 Forms module WAC SERs CO-17 templatesTaxCycle T2 is incorrectly applying the pre-2024 rates of 15% for ACDE and 5% for ACOGPE on the AT1 Schedule 15.
known issue AT1This certified release of TaxCycle T2 and AT1 extends the supported corporate tax year ends up to October 31, 2025.
release notes T2 AT1 templatesTo ensure a smooth AT1 filing experience, do not overlook these common oversights.
Alberta AT1***To conform with the CRA's expectations for the draft T2 Schedule 6, we have retracted the full installer for TaxCycle version 14.0.55100.0.*** This release extends the tax year ends for T2 and AT1 returns up to May 31, 2025.
release notes T2 AT1 capital gains inclusion rateThis certified release of TaxCycle T2 and AT1 extends the supported corporate tax year ends up to October 31, 2024. It also updates the CO-1029.8.36.II and CO-1029.8.36.IK to include changes from Québec’s mini budget from November 7, 2023.
release notes T2 AT1 CO-17