I found somewhere in this community if you that the t1135 in Turbotax needs some entries in order to unfreeze the return for Netfile. In part 7 I wrote "See mailed version. Insufficient space" in the first column then on the same line entered 0.01 as a value that it could total. It also needed a country code so I added USA. This allowed Turbotax to complete Netfile. (It seems that last year just writing in the first column was enough but now it needs entries.) As in every other year in recent history I completed the t1135 from the CRA added all the lines I needed, printed it and mailed it to the Winnipeg address. I was using Turbotax Standard 2021 for Windows for the last time.
