This line becomes a deduction from your quarterly annualized income. When you enter the quarterly income in TT reduce the income by an amount after annualization that would equal the deduction. For instance, a $300 line 12b would mean you enter in TT a first quarter income reduced by $75 ($300/4 = $75). Similar reductions would be done on the income for the second quarter (300/2.4) and the third quarter (300/1.5). Keep good notes incase you are audited. A spread sheet with the 2210 done right to compare with your TT results would be great. Hope this helps.
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