@doggieken you will need to mail in your return if you are a non-resident.
As per our TurboTax article Taxation for Non-Residents.
If you are a non-resident, you need to file a special tax return – Form 5013-R T1 (Income Tax and Benefit Return for Non-Residents and Deemed Residents of Canada).
Most filers use their Social Insurance Number on these forms, but if you don’t have one, obtain an Individual Tax Number using Form T1261 (Application for a CRA ITN for Non-Residents). You may have to file additional forms depending on the type of income you earn.
