Line 20A provides 'Other Information' on investment income, including interest and dividends, some of which will have already been reported in lines 5, 6a, 6b and/or 6c of the K-1. Filling in line 20A doesn't necessarily add income / duplicate income, but simply identifies for TT how / whether the particular investment income is taxed. For instance, Sec 199A dividends, i.e., dividend income qualifying for the qualified business income deduction, might be identified.
