@SteamTrain
yes - I previewed my 1040 and line 17 shows 503.50 higher than box 2 of my W2. I also see this higher amount in the summary page called "Your tax breaks" (in Federal > Deductions&Credits, under "Income taxes paid")
I already went through my 1099s, there was no tax withheld there so I'm not sure where TurboTax is getting the extra $503.50 that it says I paid in tax already...
