Turbo Tax is asking for the 2015 form 6251 entry. I have no form 6251 for 2015. Do I leave the box blank or enter 2015 1040 Line 41 entry

[mweingold1]

Line 41 on the 1040 in 2015 was a negative number

[jhtimsl]

What I could find is:

Form 6251 is used by taxpayers to calculate their AMT or to determine if they are subject to it. The IRS imposes the Alternative Minimum Tax (AMT) on certain taxpayers who earn a significant amount of income, but are able to eliminate most, if not all, income from taxation using deductions and credits.

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https://turbotax.intuit.com/tax-tools/tax-tips/IRS-Tax-Return/Alternative-Minimum-Tax--Common-Questi...