If you have recently filed your return and still have not received your Notice of Assessment by mail- you will need until you receive it to make sure that the change you are wanting to make on your return is not what was already completed by CRA as they assessed your return.
If you have received your Notice of Assessment and were able to make adjustments to your return and CRA is not accepting it- Click here for other options on how to send the adjustments.
If you require assistance please contact our customer service.