I had the same issue while completing a 1041 return.
My original inclination was to enter the amount on line #9,
Total Income, but TT didn't like that option.
I then entered the amount form my 1041 on line #18, Income
Distribution Deduction. TT found that acceptable.
The difference, in my situation, between the amount on line #9
and line #18, was the amount entered on line #4, Capital Gain/Loss.
TT should just have these computations in their software. Very frustrating
along with not being able to import from a Brokerage Firm when filing a 1041.
Good luck.
