The Alberta Corporate Tax Act (ACTA) requires prescribed corporations to file the Alberta Corporate Income Tax Return − AT1 (AT1 Return) electronically, which must be done using the net file service.

This version replaces the one dated February 2018. This memorandum has been updated to reflect an amendment to subsection 278(3) and the addition of subsection 278(0.1) of the Excise Tax Act. In ...

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