I’m having the exact same issue as everyone one else on this thread.   I’ve been using Turbo tax for 10+ years and have always worked in ON and lived in QC with same employer.  I’ve always done this transfer without any issues.  The technical bug started last year (2024 tx year) and I too reported the problem and logged a ticket, only to be told it would be fixed in a week’s time and it never did after multiple follow ups.  Very frustrating, because even when entering the value in the federal form field directly, when you go back to easy step, it blocks you from moving forward and gives same error so net file is not possible.  Last year I had no choice but to print and snail mail it which was completely inefficient, what is the point of buying turbotax?  This should not be rocket science for your developers to fix, perhaps they can look at 2023 tax software as a reference.  

If this doesn’t get fixed I would like my money back!

@user17753311160 If you finish your return, and then make the change in Forms mode and then file without going through EasyStep again, does it give you an error when you try to NETFILE?

@user17753311160  Can you please let us know if you received an RL1 with your T4 last year? or in 2023?

The amount that you can transfer is on income tax deducted by employers outside Québec, but as you received an RL1, it is showing that the employer is not considered to be outside QC. So no, you cannot claim the difference if the employer is not considered to be outside QC.

Yes every single year for the last 10+ year I received an RL-1 with my T4.  It has my health plan coverage amount as well as any direct QC taxes I asked my employer (located in ON) to deduct on top of the tax they already collect on my paycheque for employees working in Ontario.

@user17753311160 We suggest that you contact our Product support team. They have access to tools we don't have here in Community, like screenshare, and can investigate this issue for you.