If you filed your return using the CRA's NETFILE service, TurboTax will display a confirmation number to indicate that your return was successfully filed and received by CRA. You can view this confirmation number in TurboTax any time after you file.
To view your confirmation number:
When you sign in to your account, your returns will be displayed on your home page. The returns you've filed will be displayed with a green checkmark, the confirmation number, and the date they were filed.