Please find the information on how to enter the previous years’ losses from your Notice of Assessment in this discussion.
To enter Net Capital Losses using TurboTax Online (or EasyStep view of TurboTax CD/Download):
- From the sidebar click Deductions > Losses Profile > Net Capital Loss Carryforward > check the box beside Net Capital Losses and Continue.
- On the page titled Net Capital Loss Carry Forwards, enter the amount shown on your Notice of Assessment.
Also, please check Where do I report capital gains or losses in TurboTax Online?