Tku Geo123, your answer is very helpful. I've launched all capital loss for previous years according to your nomination.
My question is how to change historical data in my Ufile?
Example: In 2021, I had capital gain, using previous loss to deducted the gain, but I didn't know there is a limitation box which can save my credit for future years. I used the full amount to cover the gain. After read this conversation, I submitted a refile to claim back the exceed portion, and received a notice of Reassessment. What I want to know is how to change those data in my Ufile to let them match the CRA updated record.
Tku and await yours,
Nick