Thank you for confirming that Premier does not add lines. I wondered because the regular will only add one line during review. I agree that it is shocking that this has not been fixed after many years  and makes me question why they continue to fail customers in this manner.

To say that I am disappointed would be an understatement. I have been using Turbotax for as far as I can remember. I need seven lines under section 7. I can go online on the CRA website and download a fillable T1135 with no issue and be able to add lines under any sections to my heart's content but somehow, Turbotax developer decided that it is fine to only have 3 with no options to add more while using the desktop version of the "UPDATED" 2021 version.

This thread was created in 2019 and still has not been resolved.

Will have to find another software for filing in the future.

I had the same issue. I had to revert to desktop version and now I am unable to fill my T1135 due to lack of lines.

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. 

I found a solution of sorts.   

1. Don't allow TurboTax to submit your T1135 (skip that step). 
2. Download a competitor and pay the $15 registration fee
3. Use a competitor to enter your T1135 information (only). It allows you to add as many rows to each section as you need. 
4. NetFile the T1135 (only) using a competitor.  Use Turbo tax to NetFile your T1.
5. Print out (or save) the NetFile confirmation code from the CRA that a competitor receives for your T1135 filing.

This is annoying of course.  You might even decide that $15 is all you will spend on tax software for 2022 and use a competitor for everything.  

Thanks TaxUserTony for that info!

So, unfortunately for Turbotax, after 10 years of using their software and buy it again for Tax season 2021, I ended up filing with a competitor and paying their fee to file as it worked so much better. 

With a competitor, I was able to

• add unlimited amount of lines under any section of the T1135 (This was the killer for me in Turbotax)
• autofill my return even though I had over 200 T5008

Hopefully, they update their software but unfortunately, I am gone as well as my brother.

Listen to your customers!