After T4s have be remitted by mail or by upload to CRA you may want to amend or cancel them due to an error.
Only T4s marked as remitted can be amended or cancelled. Open the T4 to be edited and select ‘Amended’ or ‘Cancelled’
A cancelled T4 MUST stay exactly as it was besides the ‘Cancelled’ setting. Once edited the T4 can be printed or uploaded to CRA again.