Issuing an Amended T4/T4A

If your forms have been distributed to employees and you are not able to retrieve the affected forms and/or they have been filed with CRA (after the Ceridian deadline of February 18, 2022):

For further information, see the CRA’s publication, Employers’ Guide - Filing the T4 Slip and Summary (RC4120).

If you would like Ceridian to file your amended forms, call your Service Delivery Team for assistance.

Note: If you are moving all earnings from one province to another or from one business number to another, you will need to cancel the original tax form with CRA. CRA may assess a late filing penalty as the new form is being filed after the February 28 deadline.