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thanks for the reply...  i looked at the 2017 turbotax summary page & it shows the "Total Tax" as an even higher number.  i don't wanna break protocol & give out inappropriate info here, but without giving some ballpark numbers, i'm gonna get confused.  so the "2017 Total Tax" was $7k'ish.  i owed & paid last year $4k'ish. so i'm still confused as to where this "2017 Tax Liability" of $6k'ish is coming from AND what i should do about it.   also, if the "2017 Total Tax" is an estimate/assessment, how is that done & why? TT calculates what i owe & i pay it.  sorry, i'm really not well educated in all of this. that's why i use TT, but every once in a while it throws a curve ball at me like this.