If you have already filed your return and forgot to add a T4 slip. It is recommended to wait until you receive your notice of assessment before making any changes. Sometimes the changes are made directly by the government, and the notice notifies you.
If you have used TurboTax Online, you can use the ReFILE option by signing in to your account. On the side of the NETFILE return, you will have a ReFILE button.
If you're using TurboTax Desktop, when you open your 2025 software, you click on “Change a filed return," choose the return you want to modify, click on "Modify return" (in the NETFILE section), and follow the steps to apply the changes and ReFILE. If the steps are done in this order, the ReFILE button will be there.
In all cases, regardless of the software version used, you can do so directly in your My Account, CRA, and Revenu Québec or by mail, by completing the following forms:
CRA: T1-ADJ T1 Adjustment Request
https://www.canada.ca/en/revenue-agency/services/forms-publications/forms/t1-adj.html
Hope this helps!
Thank you for choosing TurboTax.
