Getting taxes done

Was wondering though if anyone's familiar with the provisions of the Net Investment Income Tax (NIIT):  its a +3.8% addition from the American Care Act ("Obamacare") that hits earned interest, dividends and LTCG once one's "MAGI" earnings exceed a certain value.
Just one more variable for contemplation of strategies when undergoing optimization of income vs taxes.
And for Mac content...
It is that using one's spreadsheet App is helpful to build up personal ledger (in free form) to help keep relevant entries sufficiently organized, and focus on personal priories.  I've found it useful to build out what's effectively an annual checklist so that one doesn't overlook reportable items.  Doesn't matter if they're individual accounts, or items reported on various forms that shouldn't be forgotten for various tax credits (eg, foreign taxes paid, etc).
-hh