Foreign tax carryback problem.
I always use 1116 for passive income tax credit.
For 2012-2017 I had a carryfoward of $2938.
In 2018 I paid $0 foreign taxes.
In 2019 I paid foreign taxes of $2238 and used $574, with $4602 for 2012-2018 remaining.
I want to carryback credits from 2019 to 2018.
How can I do this, it seems to not be possible because I paid $0 foreign taxes in $2018.
Is that possible? Or is it because on Form 1116 line 17 was -5574 due to a rental loss.
Note: in 2018, I couldn't use the carryfoward of $2938.
If the carryback is possible- What is the correct way of carrying back: Form 1040X + what else.
A new 1116 -How?
Thanks for any help.
