Tax Facts

778 / What is Alternative Minimum Taxable Income (AMTI) for purposes of calculating the alternative minimum tax?

Alternative minimum taxable income is taxable income, with adjustments made in the way certain items are treated for AMT purposes, and increased by any items of tax preference ( Q 781).1

Except as otherwise provided in Q 779 to Q 782, the provisions that apply in determining the regular taxable income of a taxpayer also generally apply in determining the AMTI of the taxpayer.2 In addition, references to a noncorporate taxpayer’s adjusted gross income (AGI) or modified AGI in determining the amount of items of income, exclusion, or deduction must be treated as references to the taxpayer’s AGI or modified AGI as determined for regular tax purposes.3

1.  IRC § 55(b)(2).

2.  Treas. Reg. § 1.55-1(a).

3.  Treas. Reg. § 1.55-1(b).

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